US2737787A - Roof suspended air conditioner - Google Patents

Roof suspended air conditioner Download PDF

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US2737787A
US2737787A US440407A US44040754A US2737787A US 2737787 A US2737787 A US 2737787A US 440407 A US440407 A US 440407A US 44040754 A US44040754 A US 44040754A US 2737787 A US2737787 A US 2737787A
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casing
air
motor
posts
evaporator
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US440407A
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Richard W Kritzer
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    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F1/00—Room units for air-conditioning, e.g. separate or self-contained units or units receiving primary air from a central station
    • F24F1/0007—Indoor units, e.g. fan coil units
    • F24F1/0043—Indoor units, e.g. fan coil units characterised by mounting arrangements
    • F24F1/0047—Indoor units, e.g. fan coil units characterised by mounting arrangements mounted in the ceiling or at the ceiling
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10S—TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10S62/00—Refrigeration
    • Y10S62/16—Roof and ceiling located coolers

Definitions

  • One object ofthe invention is ⁇ to provide air conditioning apparatus which includes an assembly of refrigerating apparatus, andan assembly of"cooling apparatus, and a structure for supportingthe refrigerating assembly above the roof ⁇ or. outside ofthe building, the cooling assembly inside of thei building, and refrigerating connectionsl between the assemblies. in posts between the.
  • Another Objectis to provide air conditioning, apparatus of this type with a supporting structure includinga plate mounted overan opening in a wall'or roof of the building and posts'havingmembers extending inside and'out- ⁇ side of the building for supporting the assemblies.
  • Fig. 1 ⁇ is'a section taken on line 1 1' of Fig. 2 ofthe apparatus embodying the invention
  • Fig; 2 is a vertical section taken on line 2'-2 of1 Fig. 1;.
  • Pig. 4 is a section ofthe refrigerating unit' taken on line 4 4 ofvFig'. 5;'
  • Fig. 5 is a sectiontakenon. line SL-SfofF-ig. ⁇ 3;
  • Fig. 6 is a perspectiveof the section of the casingfor the air-cooling unit which .is attached to thesupporting, posts;
  • Fig.- 7 is a perspective ofthe removable sectionof the casing ⁇ of vthe air coolinglunit
  • Fig. 8Vv is a perspectiveof the supporting ,structure-.including ⁇ thespostsbetweenthe refr-igeratiiig,ad the air cooling assemblies;
  • Fig. 9 is a diagrammatic view ofthe electrical -.connec.
  • the invention is exemplified in apparatus which. comprises generally a supporting-v., structureA which extends above and below the roof'of 'a building, annamembly of refrigeratingapparatus, generally designateda, sup.-
  • air conditioning y or coolinggapparatus generally desigf.
  • nated ⁇ b ⁇ ,V supported by saidQstructure inside ofthe ⁇ build-f ing,l and posts through ⁇ which extend therefrig'erant sand.
  • Thevsupporting structure comprises: ⁇ aplate 14, which tits over a: curb 16 aroundfan' opening'd in'the'roof of' theabuilding and has fa marginal depending-ange"17 arouudsaidxurb; a pair of .hollow posts ⁇ --10'fand ll'fixed* ⁇ 70 cross section at the lower ends of said:postsfandraLba-ri' to.. ⁇ plate'y 14I-with1 depending: memberswbelow ⁇ plate -14 which .are ,rigidly crossz-connectedtby 'alfb'ar 1230i ⁇ angular 2,737,787 Patented Mar. ⁇ 13, 1956 13 of angulan cross section-above bar 1-2; and upstandingV members.
  • the assembly of.coolingrapparatus b is'disposed inside offthe. building. and ⁇ supported by the depending members of posts 10 and 11, and/comprises: which includes.. a coil of finned tubing disposed at one side of posts 10 and .1.1; ⁇ anA ⁇ air impellerv 41 on the shaft of an electric motor.42:which isrdernountably supported in a -ring144'which issupported by, aspider 43 with arms which are iixedtoone side of cross bars12 and 13; and a sectional casingorhousing enclosing thercooling apparatus.
  • This casingl or housing ⁇ has aninlet 4S in one side across wh'icliV the* evaporator extendsV and -an outlet in the opposite sideacross ywhich.
  • any air lter- 44 is slid-l ably.supportedandsurrounds impellerf41, motor ⁇ 42 and evaporator 40.
  • the impeller 41 Vdraws-air from the inside oflthe buildinganound the-evaporator 4tl-and discharges it through ,.thealter. 44 inside of the building.
  • the casingon housing-forr the.cooling apparatus b is ⁇ 45.
  • Tlie arms ofspider 23 areiixedin section 50.
  • Thev casingsection 58 is-removab1ysecuredcto'posts 10 and 11,' mates withfthe inner side of casingv section 50, and
  • a.top.wal1.54sidewalls 55 a bottom 56V withfr an upstandingmarginal rim.- 57 whichfform a pan for collectingcondensate, ⁇ and flanges 57 whichform' a sli'deway for filter 44.
  • the top 54 has flanges 59 with holes for screws to secure section 58 on section 50, The sectional formation of Ithe casing, of the.
  • the compressorfofunit 24- is connected by'a conduit 28"in casing 35 to conduct refrigerant tothe inlet header 29 onV the condenser coil.25;4
  • A'nseries of capillary tubes 49 are connected in postl 11to Athellowerend ofmember .32a of. conduit 32- and extend downwardly-in post. 11 through an opening inits lower end.
  • Twoof the.tubes 49 are connected ⁇ tothe inlet' ends of the coils an evaporator 49' rator 41, comprises: a conduit 64 connected to the outlet header 66 for the upper section of evaporator 41; an outlet header 65 for the lower section of said evaporator; a strainer 67 to which conduit 64 and header 66 are connected; a conduit member 31a connected to the outlet of strainer 67, extending through an opening in the lower end of post 11, and thence upwardly in said post; a conduit member 31b communicatively connected with member 31a and extending upwardly through post 11 to the upper end thereof and to the compressor.
  • the portions of the capillary tubes 49 and portions of conduit member 31a in post 11 are parallel and soldered together for heat interchange to render the refrigerant in the capillary tubes responsive to the temperature in member 31a through which the refrigerant flows from the evaporator to the compressor. This varies the rate of flow of the refrigerant to the evaporator responsively to the temperature to the refrigerant in the suction line.
  • a unit 70 includes an electric motor and pump and is mounted on the bottom 56 of casing section 53.
  • the pump of said unit has an inlet 71 for liquid on the bottom 56 and an outlet 72, which is connected by a hose 73 which extends into the lower end of post 11 and upwardly through the post to a spray pipe 74 in the casing 35 to discharge the condensate onto the coil and fins of condenser and utilize the condensate for cooling the condenser coil.
  • the conduits for refrigerant between the refrigerating and cooling units both of which are carried by the supporting structure which includes posts 10 and 11, pass through said posts, and are connected to elements mounted in casing 35, and the casing section 50 which is xedly secured to said posts.
  • the conduits for the refrigerant between the refrigerating and cooling units remain connected when it is necessary to remove casing section 58 for the installation of the apparatus.
  • the hose 73 through which condensate is pumped to the condenser coil 25, extends through post 11, is detachably coupled to unit 70 so it can remain in said post during the separation of casing sections 50 and 58.
  • a terminal block 80 mounted on cross bar 13; line conductors 81 from a source of potential to terminals on block 80, conductors 82 between terminals on block 80, and motor 42 which drives the impeller 41; conductors 83 between the terminals on block 80 and the motor in unit 70 which drives the condensate pump; conductors'84 which are connected to terminals on block 80 and extend through a portion of post 10 to terminals for the windings of the motor of unit 24; a device 86 for controlling current for starting and running motor 24; conductors 87 which are connected to the terminals for the windings of motor of unit 24 and device 86 for supplying current for starting said motor; a conductor 88 connected to a terminal connected to motor of unit 24 and to device 86 which includes a switch 85 for controlling the current of a predetermined capacity to motor of unit 24; a magnetic relay 89 for controlling switch 85; and conductors 90 between the
  • an opening is cut in the roof of the building, usually between joists, and a curb built around the opening. If the opening d is of sucient width to permit the assembled casing sections 50 and 58 with the impeller 41 therein, to pass therethrough, the complete cooling assembly b depending from posts 10 and 11 is lowered through the opening l until the plate 14 is supported on the curb 16. The refrigerating apparatus will then be supported over the roof for cooling the condenser by outside air. The cooling apparatus will then be mounted for conditioning air inside of the building.
  • the permissible opening in the roof is less in width than the entire casing of the cooling apparatus
  • the casing section 58 is detached from casing section 5i) and the motor 42 with its impeller 41 is removed from ring 44 after the terminals of conductors 62 for motor 42 and the terminals of conductors 83 for the motor of unit 70 are disconnected from the block 80 and the hose 73 is uncoupled from unit 70.
  • the motor 42 and impeller 41 are then replaced and the terminals of conductors 62 and conductors 83 are connected to block 80.
  • the hose 73 is connected to unit 70 and the casing section 58 is replaced on the side of posts 10 and 11.
  • the refrigerating and cooling assemblies will then be restored to operative condition.
  • the refrigerating assembly with casing 35 on the supporting structure will be mounted and operative over the roof, and the cooling assembly on said structure will be mounted and operative inside of the building.
  • the refrigerant and condensate conduits between the assemblies will be enclosed in and extend through one of the hollow posts, and the electrical conductors 84 will extend through a portion of the other post.
  • the operation will be as follows: When current is supplied to the line conductors 81, the motor 42 will be operated by current through line conductors 81 and conductors 82; the motor of unit 70 will be operated by current through line conductors 81 and conductors 63; the circuit for the motor of the unit 24 in starting will be through one of the conductors 84, one of the conductors 87, device 86, the other conductor 87 in which switch 85 is included, the windings of the motor of unit 24 and the other conductor 84, and after starting, the circuit from the device 86 will be through conductor 87a to the windings of the motor of unit 24; and the circuit for the motor 27 which drives impeller 26 will be through conductors 84 and 89.
  • the motor of unit 24 will operate the compressor to force refrigerant through conduit 28 to the condenser coil 25. From coil 25 it will flow via conduit members 32, 32a, capillary tubes 49, the upper and lower sections of the coils of the evaporator 40, outlet headers 65 and 66, strainer 67, conduit members 31a, and 31h, to the suction side of the compressor.
  • the refrigerant will be condensed in coil 25.
  • Tubes 49 are responsive to the temperature of the refrigerant in the suction line to vary the rate of ow of refrigerant to the evaporator.
  • the impeller 41 will draw air at 45 into the casing 'section 50, force it into contact with the evaporator so it will be cooled, and then discharge the cooled air through the filter 44 into the space inside of the building.
  • the impeller 26 will force outside air through casing 35 into contact with the coil 25 and its fins, to condense the refrigerant, and discharge the air above the roof of the building.
  • the motor of unit 70 will operate the pump and force the condensate which collects on the bottom 56 through hose 73 and discharge it onto the condenser coil 25, to assist in cooling the refrigerant in said coil,
  • the inventionY exemplifies air conditioning apparatus; which includes af casing around-"therefrigeratinggapparatus ⁇ which has openings in its4 opposite' sidesfor'the-forced'- ow of outside air-across the heat-'exchanger coilv ofl the condenser and through said casing, a separate casing around the air coiling apparatus having openingsk in its opposite sides for the How of inside air'around the'evaporatorand through its casing; unitaryV supporting structure and posts which extendV between they separated casings for the refrigerating apparatus: and the cooling apparatus which includes posts between thel casing.
  • the posts are hollow and are utilized to enclose the refrigerant and condensate conduits.V
  • TheV apparatus can bereadily installed in the roof of a building atselectedfspots where air conditioning is desired.l
  • the combination with an assembly of refrigerating apparatus comprising: an outside casing having openings for the passage of air therethrough, a motordriven compressor in said casing, and a condenser including a heat exchanger connected to the compressor, and a ⁇ motordriven air impeller for forcing air through said casing; and an assembly for cooling air comprising an inside cas- ⁇ ing adapted for the passage of air therethrough, an evaporator in the inside casing, and arnotor-driven impeller for forcing air in contact with theevaporator andtthrough said inside casing; of a supporting structure'including a. plate itting over an opening in theroofofa building and on which the outside casing is secured', and a hollow up right post depending.
  • the assemblies including af pair of upright posts, ,adapted to extend throughan opening in, and having members'above and below, the roof -ofa building, means on which the postsy are supported, mounted on the roof over said openingpmeans for supporting'theheatexchanger and the air impeller therefor on the upper members of the posts, and means for supporting the evaporator and the air impellertherefor on the lower members of said posts, and refrigerant; conduits between the refrigerating apparatus and the evaporator.
  • an assembly of refrigerating apparatus comprising; a casingfor the refrigerating apparatus having openings'in opposite sides for the passage of ⁇ air therethrough, a motor-driven compressor, and a condenser including'a heat-exchanger connected to the compressor and a motor-driven air impeller for forcing air through said casing; and an assembly' of cooling apparatus comprising a casing for the cooling apparatus, having openings in opposite sides, for the passage of air therethrough, an evaporator in thesinsideV casing and a motor-driven impeller for forcing air; across the evaporator and through said inside casing; of a supporting structure for the assemblies including a pair of upright hollow posts, adapted to extend through an opening in, and having members above and below, the roof of a building, a plate on which the posts are supported, mounted on the roof over said opening; means for supporting the heat-exchanger and the air impeller therefor on the upper members of ⁇ the posts above the'plate, and means for supporting the evaporator
  • an assembly of refrigerating apparatus comprising; a casing, for the refrigerating apparatusV having openings in opposite sides. for the'passage of air therethrough, a motondriven compressor, and a condenser including a heat-exchanger connected to the compressor and a motor-driven airimpeller for forcing air through said casing;.and an assembly comprising an inside casing: having openings in opposite sides for the passage. of air'therethrough, an evaporator in the casing for the cooling apparatus, and a motor-driven impeller for forcing air across the evaporator and through said casing for the cooling apparatus; of.
  • a supporting structure for the assemblies including a pair ofl upright posts, adapted to extendv through an opening in, and having members ⁇ above andbelow the. roofof abuilding, a ⁇ plate on which the. posts are supported, mountedon the roof over said opening; means for supporting the heat-exchanger andtheair impeller therefor from the members of the posts, above the plate, means for supporting the evaporator and the air impeller therefor from the lower ⁇ members of said posts, and refrigerant conduits between the refrigerating apparatus and the evaporator having portions extending through' one ofl the f posts.
  • a motor-driven compressor, andV a condenser'l including a heat-exchanger connected to the compressor and a motor-driven air impeller for forcing air through said casing; and an assembly of cooling apparatus comprising a casing for the cooling apparatus having openings for the passage of air therethrough, an evaporator in the easing for the cooling apparatus, and a motordriven impeller for forcing air across the evaporator and through said last-named casing; of a supporting structure for the assemblies including a pair of upright hollow posts, adapted to extend through an opening in and above and below the roof of a building, a plate on which the posts are supported, mounted on the roof around said opening; a cross bar between the posts on which the motor-driven impeller is mounted, the compressor being mounted on said plate, and means for supporting the evaporator and the air impeller therefor from lower members of said posts, the compressor being mounted on said plate; and refrigerant conduits between the refrigerating apparatus and the evaporator having portions extending through one of the
  • refrigerant conduits between the evaporator and the refrigerating apparatus having portions extending through Cil one of the posts, one of the sections of the casing being xedly mounted on the posts, and the other section being removably secured to the posts, the motor and impeller for the evaporator being removably mounted in the fixed casing section.
  • an assembly of refrigerating apparatus comprising, a casing for the refrigerating apparatus having openings in opposite ends for the passage of air therethrough, a motor-driven compressor, and a condenser connected to the compressor including a heatexchanger, and a motor-driven air impeller for forcing air through said casing; and an assembly of cooling apparatus comprising a casing therefor having openings in opposite sides for the passage of air therethrough, and means for collecting condensate, a motor-driven impeller for forcing air across the evaporator and through the casing of the cooling apparatus, and a pump for the condensate; of a supporting structure for said assemblies, including posts between the assemblies, extending through an opening in, and outside and inside of the roof of, a building, refrigerant conduits between the evaporator and the refrigeting apparatus, and a conduit between the pump and the heat-exchanger of the condenser.
  • an assembly of refrigerating apparatus comprising, a casing for the refrigerating apparatus having openings in opposite ends for the passage of air therethrough, a motor-driven compressor, and a condenser connected. to the compressor including a heat-exchanger, and a motor-driven air impeller for forcing air through said casing; and an assembly of cooling apparatus comprising a casing therefor, having openings in opposite sides for the passage of air therethrough, and means for collecting condensate, a motor-driven impeller for forcing air across the evaporator and through the casing of the cooling apparatus, and a pump for the condensate; of a supporting structure for said assemblies, including posts between the assemblies, extending through an opening in, and outside and inside of the roof of, a building, refrigerant conduits between the evaporator and the refrigerating apparatus, and a conduit between the pump and the heat-exchanger of the condenser, extending through one of said posts.
  • an assembly of refrigerating apparatus comprising; a casing for the refrigerating apparatus having openings in oppositc ends for the passage of air therethrough, a motor-driven compressor, and a condenser connected to the compressor including a heat-exchanger, and a motor-driven air impeller for forcing air through said casing; and an assembly of cooling apparatus comprising a casing therefor, having openings in opposite sides for the passage of air therethrough, a motor-driven impeller for forcing air across the evaporator and through its casing; of a supporting structure for said assemblies, including posts between the assemblies, extending through an opening in, and
  • an assembly of refrigerating apparatus comprising, a casing for the refrigerating apparatus having openings in opposite ends for the passage of air therethrough, a motor-driven compressor, and a condenser connected to the compressor including a heat-exchanger, and a motor-driven air impeller for forcing air through said casing; and an assembly of cooling apparatus comprising a casing therefor, having openings in opposite sides for the passage of air therethrough, a motor-driven impeller for forcing air across the evaporator and through its casing; of a supporting structure for said assemblies, including posts between the assemblies, extending through an opening in, and outside and inside of the roof of, a building, a plate over said opening to which the posts are secured and on which the compressor is mounted, a cross-bar between the posts on which the motor-driven impeller of the refrigerating apparatus is mounted, cross-bars between the posts on which the motor and impeller of the cooling apparatus is mounted, refrigerant conduits between the evaporator and the refriger
  • an assembly of refrigerating apparatus comprising, a casing for the refrigerating apparatus having openings for the passage of air therethrough, a motor-driven compressor, and a condenser connected to the compressor including a heat-exchanger, and a motor-driven air impeller for forcing air through said casing; and an assembly of cooling apparatus comprising a casing therefor, the cooling apparatus having openings for the passage of air therethrough, a motordriven impeller for forcing air across the evaporator and through the last named casing; of a supporting structure for said assemblies, including posts between the assemblies, extending through an opening in, and outside and inside of the roof of, a building, means over said opening to which the posts are secured, refrigerant conduits between the evaporator and the refrigerating apparatus, and electrical connections for the compressor motor and the impeller motor of the refrigerating apparatus, extending through one of the posts.

Description

March 13, 1956 Filed June 23, 1954 R. w. KRlTzER 2,73 7,787
ROOF' SUSPENDED AIR CONDITIONER 4 Sheets-Sheet l ooo oo@ oooo goo copo oo o March 13, 1956 R. w. KRlTzl-:R
ROOF SUSPENDED AIR CONDITIONER 4 Sheets-Sheet 2 Filed June 23, 1954 Mardi 13, 1956 R. w. KRlTzER ROOF SUSPENDED AIR CONDITIONER 4 Sheets-Sheet 3 Filed June 23, 1954 March 13, 1956 R. w. KRxTzr-:R 2,737,787
ROOF SUSPENDED AIR CONDITIONER Filed June 25, 1954 4 sheetsPShee,c 4
United States Patent ROOF SUSPENDED- AIRCONDITIONER Richard W. Krtzer,Chicago,-Ill. Application .I ime 23, 1954, Serial N o. 440,407 16 Claims. (Cl. 62-129) The invention relatesV to air conditioning apparatus.
One object ofthe invention is` to provide air conditioning apparatus which includes an assembly of refrigerating apparatus, andan assembly of"cooling apparatus, and a structure for supportingthe refrigerating assembly above the roof` or. outside ofthe building, the cooling assembly inside of thei building, and refrigerating connectionsl between the assemblies. in posts between the.
assemblies.
Another Objectis to provide air conditioning, apparatus of this type with a supporting structure includinga plate mounted overan opening in a wall'or roof of the building and posts'havingmembers extending inside and'out-` side of the building for supporting the assemblies.
Anotherobjectof vthe'i'invention is'to provide air con ditioning apparatus for this type, which can be readily installed for use. v
Otherobjects willappear from the detailed'dscription.
The inventions consists in the several novel'fe'atures which are hereinafter described'and 'more particularly dened by theV claims at the conclusion hereof.`
In the drawings:
Fig. 1` is'a section taken on line 1 1' of Fig. 2 ofthe apparatus embodying the invention;A
Fig; 2 is a vertical section taken on line 2'-2 of1 Fig... 1;.
Fig; 3 is a-vertical section ofthe air cooling unit taken on line 3'-3=ofFig'. ,5';.
Pig. 4 is a section ofthe refrigerating unit' taken on line 4 4 ofvFig'. 5;'
Fig; 5 is a sectiontakenon. line SL-SfofF-ig.` 3;
Fig. 6 is a perspectiveof the section of the casingfor the air-cooling unit which .is attached to thesupporting, posts;
Fig.- 7 isa perspective ofthe removable sectionof the casing `of vthe air coolinglunit;
Fig. 8Vv is a perspectiveof the supporting ,structure-.including` thespostsbetweenthe refr-igeratiiig,ad the air cooling assemblies;
Fig. 9" is a diagrammatic view ofthe electrical -.connec.
tions andl apparatus.
The invention is exemplified in apparatus which. comprises generally a supporting-v., structureA which extends above and below the roof'of 'a building, anfassembly of refrigeratingapparatus, generally designateda, sup.-
ported by'said structure over-the roofan..assembly of.
air conditioning y or coolinggapparatus, generally desigf.
nated `b`,V supported by saidQstructure. inside ofthe` build-f ing,l and posts through` which extend therefrig'erant sand.
electric connections' between the refrigeratingvapparatus and the cooling assemblies.'
Thevsupporting structure comprises:` aplate 14, which tits over a: curb 16 aroundfan' opening'd in'the'roof of' theabuilding and has fa marginal depending-ange"17 arouudsaidxurb; a pair of .hollow posts\--10'fand ll'fixed* `70 cross section at the lower ends of said:postsfandraLba-ri' to..` plate'y 14I-with1 depending: memberswbelow` plate -14 which .are ,rigidly crossz-connectedtby 'alfb'ar 1230i` angular 2,737,787 Patented Mar.` 13, 1956 13 of angulan cross section-above bar 1-2; and upstandingV members. aboveplate 1.4.:which are rigidly cross-connected The assembly of refrigerating: apparatusra which ismounted. on the. supportingstructure above the roof of the building, comprises: a.unit 24.which includes-a sealedl compressor or pump. andanelectric motor for driving the compressor and-is mounted on thel plate 14 of the supporting structure; a` condenser for the refrigerant which includes a coil 25 with. the. usual iins and is mountedon and at one` side of the.- upstandingt members of posts 10 and 11, an..air. impeller 2A6lon the shaft of an electric motor'27 which. is mounted` on thetop of the cross bar 15` of the supporting'structure; and a casing- 35V which surrounds they unit 24, impeller 26, motor 27 and coil25V andis provided .witha screened inlet opening 36 inone side andan outlet 37 across which the coil 25 extends in thel opposite side..v
The assembly of.coolingrapparatus b is'disposed inside offthe. building. and `supported by the depending members of posts 10 and 11, and/comprises: which includes.. a coil of finned tubing disposed at one side of posts 10 and .1.1;` anA` air impellerv 41 on the shaft of an electric motor.42:which isrdernountably supported in a -ring144'which issupported by, aspider 43 with arms which are iixedtoone side of cross bars12 and 13; and a sectional casingorhousing enclosing thercooling apparatus. This casingl or housing` has aninlet 4S in one side across wh'icliV the* evaporator extendsV and -an outlet in the opposite sideacross ywhich. any air lter- 44 is slid-l ably.supportedandsurrounds impellerf41, motor` 42 and evaporator 40. The impeller 41 Vdraws-air from the inside oflthe buildinganound the-evaporator 4tl-and discharges it through ,.thealter. 44 inside of the building.
The casingon housing-forr the.cooling apparatus b is` 45. Tlie arms ofspider 23 areiixedin section 50. Thev casingsection 58 is- removab1ysecuredcto'posts 10 and 11,' mates withfthe inner side of casingv section 50, and
comprises: a.top.wal1.54sidewalls 55, a bottom 56V withfr an upstandingmarginal rim.- 57 whichfform a pan for collectingcondensate, `and flanges 57 whichform' a sli'deway for filter 44. The top 54 has flanges 59 with holes for screws to secure section 58 on section 50, The sectional formation of Ithe casing, of the. cooling appa-- ratus'permits the 'cooling unit vto be narrowed by removal of `section 58-and the impeller 41, if necessary, so that the remainder 'of `the`unit can be lowered through a narrow=opening betweentheljoists of a roof;v The compressorfofunit 24-is connected by'a conduit 28"in casing 35 to conduct refrigerant tothe inlet header 29 onV the condenser coil.25;4
A=conduit 32I-for.='refrigerant'inj which-'a'strainer 33 is included,.extends.ifrom...thef outlet.header 34 of coil 25K into. -the upperirendf. of post 11.1 and! thence downwardly to..a. member 32a .in` said post; A'nseries of capillary tubes 49 are connected in postl 11to Athellowerend ofmember .32a of. conduit 32- and extend downwardly-in post. 11 through an opening inits lower end. Twoof the.tubes 49 are connected` tothe inlet' ends of the coils an evaporator 49' rator 41, comprises: a conduit 64 connected to the outlet header 66 for the upper section of evaporator 41; an outlet header 65 for the lower section of said evaporator; a strainer 67 to which conduit 64 and header 66 are connected; a conduit member 31a connected to the outlet of strainer 67, extending through an opening in the lower end of post 11, and thence upwardly in said post; a conduit member 31b communicatively connected with member 31a and extending upwardly through post 11 to the upper end thereof and to the compressor. The portions of the capillary tubes 49 and portions of conduit member 31a in post 11 are parallel and soldered together for heat interchange to render the refrigerant in the capillary tubes responsive to the temperature in member 31a through which the refrigerant flows from the evaporator to the compressor. This varies the rate of flow of the refrigerant to the evaporator responsively to the temperature to the refrigerant in the suction line.
The condensate from the cooling unit gravitates into the pan formed by bottom 56 and rim 57 of the removable casing section 58. A unit 70 includes an electric motor and pump and is mounted on the bottom 56 of casing section 53. The pump of said unit has an inlet 71 for liquid on the bottom 56 and an outlet 72, which is connected by a hose 73 which extends into the lower end of post 11 and upwardly through the post to a spray pipe 74 in the casing 35 to discharge the condensate onto the coil and fins of condenser and utilize the condensate for cooling the condenser coil.
In this construction, the conduits for refrigerant between the refrigerating and cooling units, both of which are carried by the supporting structure which includes posts 10 and 11, pass through said posts, and are connected to elements mounted in casing 35, and the casing section 50 which is xedly secured to said posts. As a result, the conduits for the refrigerant between the refrigerating and cooling units remain connected when it is necessary to remove casing section 58 for the installation of the apparatus. The hose 73 through which condensate is pumped to the condenser coil 25, extends through post 11, is detachably coupled to unit 70 so it can remain in said post during the separation of casing sections 50 and 58.
The electrical connections and apparatus for the operation of the several motors are diagrammatically shown in Fig. 9 and comprise: a terminal block 80 mounted on cross bar 13; line conductors 81 from a source of potential to terminals on block 80, conductors 82 between terminals on block 80, and motor 42 which drives the impeller 41; conductors 83 between the terminals on block 80 and the motor in unit 70 which drives the condensate pump; conductors'84 which are connected to terminals on block 80 and extend through a portion of post 10 to terminals for the windings of the motor of unit 24; a device 86 for controlling current for starting and running motor 24; conductors 87 which are connected to the terminals for the windings of motor of unit 24 and device 86 for supplying current for starting said motor; a conductor 88 connected to a terminal connected to motor of unit 24 and to device 86 which includes a switch 85 for controlling the current of a predetermined capacity to motor of unit 24; a magnetic relay 89 for controlling switch 85; and conductors 90 between the terminals to which conductors 84 and motor 27 are connected, for supplying current to said motor 27 for driving the impeller 26.
These electrical connections and devices are all mounted on the supporting structure on which the casing and the casing section 50 are mounted. The terminals of conductors 62 for motor 42 are disconnectable from block 80 so that said motor and impeller 41 can be removed from casing section 50. The terminals of conductors 83 for the motor of unit 70 are disconnectable 4 from block to permit removal of the unit 70 with the casing section 58.
In the installation of the apparatus, an opening is cut in the roof of the building, usually between joists, and a curb built around the opening. If the opening d is of sucient width to permit the assembled casing sections 50 and 58 with the impeller 41 therein, to pass therethrough, the complete cooling assembly b depending from posts 10 and 11 is lowered through the opening l until the plate 14 is supported on the curb 16. The refrigerating apparatus will then be supported over the roof for cooling the condenser by outside air. The cooling apparatus will then be mounted for conditioning air inside of the building.
1f the permissible opening in the roof is less in width than the entire casing of the cooling apparatus, the casing section 58 is detached from casing section 5i) and the motor 42 with its impeller 41 is removed from ring 44 after the terminals of conductors 62 for motor 42 and the terminals of conductors 83 for the motor of unit 70 are disconnected from the block 80 and the hose 73 is uncoupled from unit 70. This narrows the width of the apparatus on the lower ends of posts 10 and 11 to the width of casing section 50 so that it can be lowered through opening d and plate 14 placed on the curb 16. The motor 42 and impeller 41 are then replaced and the terminals of conductors 62 and conductors 83 are connected to block 80. The hose 73 is connected to unit 70 and the casing section 58 is replaced on the side of posts 10 and 11. The refrigerating and cooling assemblies will then be restored to operative condition. The refrigerating assembly with casing 35 on the supporting structure will be mounted and operative over the roof, and the cooling assembly on said structure will be mounted and operative inside of the building. The refrigerant and condensate conduits between the assemblies will be enclosed in and extend through one of the hollow posts, and the electrical conductors 84 will extend through a portion of the other post.
The operation will be as follows: When current is supplied to the line conductors 81, the motor 42 will be operated by current through line conductors 81 and conductors 82; the motor of unit 70 will be operated by current through line conductors 81 and conductors 63; the circuit for the motor of the unit 24 in starting will be through one of the conductors 84, one of the conductors 87, device 86, the other conductor 87 in which switch 85 is included, the windings of the motor of unit 24 and the other conductor 84, and after starting, the circuit from the device 86 will be through conductor 87a to the windings of the motor of unit 24; and the circuit for the motor 27 which drives impeller 26 will be through conductors 84 and 89. The motor of unit 24 will operate the compressor to force refrigerant through conduit 28 to the condenser coil 25. From coil 25 it will flow via conduit members 32, 32a, capillary tubes 49, the upper and lower sections of the coils of the evaporator 40, outlet headers 65 and 66, strainer 67, conduit members 31a, and 31h, to the suction side of the compressor. The refrigerant will be condensed in coil 25. Tubes 49 are responsive to the temperature of the refrigerant in the suction line to vary the rate of ow of refrigerant to the evaporator. The impeller 41 will draw air at 45 into the casing 'section 50, force it into contact with the evaporator so it will be cooled, and then discharge the cooled air through the filter 44 into the space inside of the building. The impeller 26 will force outside air through casing 35 into contact with the coil 25 and its fins, to condense the refrigerant, and discharge the air above the roof of the building. The motor of unit 70 will operate the pump and force the condensate which collects on the bottom 56 through hose 73 and discharge it onto the condenser coil 25, to assist in cooling the refrigerant in said coil,
arrears# The inventionY exemplifies air conditioning apparatus; which includes af casing around-"therefrigeratinggapparatus `which has openings in its4 opposite' sidesfor'the-forced'- ow of outside air-across the heat-'exchanger coilv ofl the condenser and through said casing, a separate casing around the air coiling apparatus having openingsk in its opposite sides for the How of inside air'around the'evaporatorand through its casing; unitaryV supporting structure and posts which extendV between they separated casings for the refrigerating apparatus: and the cooling apparatus which includes posts between thel casing. The posts are hollow and are utilized to enclose the refrigerant and condensate conduits.V TheV apparatus can bereadily installed in the roof of a building atselectedfspots where air conditioning is desired.l
The invention is not to be understood as restricted to the details set forth since these may be modified within the scope of theV appended claims without departing from the spirit and scope. ofv the invention.
Having thus described the invention, what- I claim as new and desire to secure by Letters'Patent is:
l. The combination with an assembly of refrigerating apparatus, comprising: an outside casing having openings for the passage of air therethrough, a motordriven compressor in said casing, and a condenser including a heat exchanger connected to the compressor, and a `motordriven air impeller for forcing air through said casing; and an assembly for cooling air comprising an inside cas-` ing adapted for the passage of air therethrough, an evaporator in the inside casing, and arnotor-driven impeller for forcing air in contact with theevaporator andtthrough said inside casing; of a supporting structure'including a. plate itting over an opening in theroofofa building and on which the outside casing is secured', and a hollow up right post depending. linearly from said' plate', andA on which the .inside casing is supporting underzandvertically spaced. from the. plate andthe roof,.and refrigerant conduits extending through said post and' between refrigerat; ing apparatus and the evaporator.
2. The combination with an assembly. of refrigerating apparatus, cornprising;,an` outside casing having open-V ings for the passage of air therethrough.a motor-driven; compressor, and a condenser including aheat-,exchanger connected to the compressorand a motor-driven air impeller for forcing air through said: casing;,andv an assembly comprising an inside casing adapted for the-passage of air therethrough, an evaporator in the inside casing,Y and a motor-driven impeller for forcingair across the evaporator and through saidinside casing; oft a supporting structurer for. the assemblies including af pair of upright posts, ,adapted to extend throughan opening in, and having members'above and below, the roof -ofa building, means on which the postsy are supported, mounted on the roof over said openingpmeans for supporting'theheatexchanger and the air impeller therefor on the upper members of the posts, and means for supporting the evaporator and the air impellertherefor on the lower members of said posts, and refrigerant; conduits between the refrigerating apparatus and the evaporator.
3. The combination with an assembly ofrefrigerating apparatus, comprising; an outside casing having openings for the passage of air therethrough, a motor-driven compressor, and condenser including aheat-:exchanger connected to the compressor and a motor-driven air impeller for forcing air throughsaid casing; andan assembly comprising an inside casingadapted for thepassa'ge of air therethrough, an evaporator inthe insidecasing and a motor-driven impeller forforcing air across theY evaporator and through said inside: casing; ofta supporting structure for the assemblies including ai pair ofupright posts, adapted to extend through an opening in,` and having members above and below, the roof ofa-building, aplate on which the posts and the compressorv areA supported,v mounted on the roofover said opening;meansl for supporting the= heatsexchanger and the'airimpellerthereforL orr the upper membersof-'the postszabove. the plate, and means'forsupporting the evaporator and the air impeller therefor on the lower-members of said'posts, and refrigerant/conduits between therefrgerating apparatus and the evaporator.
4. The combination with an assembly of refrigerati'ng apparatus, comprising;
an outsideV casingghaving openings for'the passagel of air therethrough, a motor-driven4 compressor, and a condenser'including; a heat-exchanger connected to the compressor and a motor-driven air impeller for forcing air through said casing; and an assembly comprising an inside casing adapted for the passage of air therethrough', an evaporator in theinside casing and a motor-driven impeller for forcing air across the evaporator and through said inside casing; of a supporting structure for the assemblies including a pair of upright posts, adapted to extendthrough an openingY in, and having members above and below, the roof of a building, a plate on which thev posts are supported, mounted on the roof over said opening; means for supporting the heatexchanger and the air-impeller therefor on the upper members ofV the posts above the plate, and means for supporting the' evaporator and the air impeller therefor on the lower members of said posts, and refrigerant conduits between the refrigerating apparatusy and the evaporator.
5. The combination with: an assembly of refrigerating apparatus, comprising; a casingfor the refrigerating apparatus having openings'in opposite sides for the passage of` air therethrough, a motor-driven compressor, and a condenser including'a heat-exchanger connected to the compressor and a motor-driven air impeller for forcing air through said casing; and an assembly' of cooling apparatus comprising a casing for the cooling apparatus, having openings in opposite sides, for the passage of air therethrough, an evaporator in thesinsideV casing and a motor-driven impeller for forcing air; across the evaporator and through said inside casing; of a supporting structure for the assemblies including a pair of upright hollow posts, adapted to extend through an opening in, and having members above and below, the roof of a building, a plate on which the posts are supported, mounted on the roof over said opening; means for supporting the heat-exchanger and the air impeller therefor on the upper members of `the posts above the'plate, and means for supporting the evaporator and the air impeller therefor on the lower members of saidposts, and refrigerantconduits between-the refrigeratingrapparatus and the evaporator having portions extending through one of the posts.
6.. The combination with: an assembly of refrigerating apparatus, comprising; a casing, for the refrigerating apparatusV having openings in opposite sides. for the'passage of air therethrough, a motondriven compressor, and a condenser including a heat-exchanger connected to the compressor and a motor-driven airimpeller for forcing air through said casing;.and an assembly comprising an inside casing: having openings in opposite sides for the passage. of air'therethrough, an evaporator in the casing for the cooling apparatus, and a motor-driven impeller for forcing air across the evaporator and through said casing for the cooling apparatus; of. a supporting structure for the assemblies including a pair ofl upright posts, adapted to extendv through an opening in, and having members` above andbelow the. roofof abuilding, a` plate on which the. posts are supported, mountedon the roof over said opening; means for supporting the heat-exchanger andtheair impeller therefor from the members of the posts, above the plate, means for supporting the evaporator and the air impeller therefor from the lower` members of said posts, and refrigerant conduits between the refrigerating apparatus and the evaporator having portions extending through' one ofl the f posts.
7. The combination with: an assembly of refrigerating apparatus, comprising; a casing; for.v the refrigerating apparatus' having openings for the passage of" air there.-
through', a motor-driven compressor, andV a condenser'l including a heat-exchanger connected to the compressor and a motor-driven air impeller for forcing air through said casing; and an assembly of cooling apparatus comprising a casing for the cooling apparatus having openings for the passage of air therethrough, an evaporator in the easing for the cooling apparatus, and a motordriven impeller for forcing air across the evaporator and through said last-named casing; of a supporting structure for the assemblies including a pair of upright hollow posts, adapted to extend through an opening in and above and below the roof of a building, a plate on which the posts are supported, mounted on the roof around said opening; a cross bar between the posts on which the motor-driven impeller is mounted, the compressor being mounted on said plate, and means for supporting the evaporator and the air impeller therefor from lower members of said posts, the compressor being mounted on said plate; and refrigerant conduits between the refrigerating apparatus and the evaporator having portions extending through one of the posts.
8. The combination with an assembly of refrigerating apparatus, comprising; a casing for the refrigerating apparatus having openings in opposite sides for the passage of air therethrough, a motor-driven compressor, and a conductor connected to the compressor, including a heatexchanger and a motor-driven air impeller for forcing air through said casing; and an assembly of cooling apparatus comprising a casing for the cooling apparatus having openings in opposite sides for the passage of air therethrough, a motor-driven impeller for forcing air across the evaporator and through said last named casing; of a supporting structure including posts between the assemblies, extending through an opening in, and outside and inside of a wall of, a building, a plate over said opening, to which the posts are secured, a cross bar between the posts on which the motor-driven impeller for thc heat exchanger is mounted, cross bars between the posts on which the motor and impeller for the evaporator are secured, and refrigerant conduits between the evaporator and the refrigerating apparatus having portions thereof extending through one of said posts.
9. The combination with an assembly of refrigerating apparatus, comprising; a casing for the refrigerating a,- paratus having openings for the passage of air therethrough, a motor-driven compressor, and a condenser connected to the compressor, including a heat-exchanger and a motor-driven air impeller for cooling air through said casing; and an assembly comprising an inside casing, including separable mating sections, a motor-driven impeller for forcing air across the evaporator and through said inside casing; of a supporting structure, including posts between the assemblies, extending through an opening in, and outside and inside of the roof of, a building, means over said opening to which the posts are secured, refrigerant conduits between the evaporator and the refrigerating apparatus, one of the sections of the casing being fixedly mounted on the posts, and the other section being removably secured to the posts, the motor and impeller for the evaporator being removably mounted in the fixed casing section.
10. The combination with an assembly of refrigerating apparatus, comprising; a casing for the refrigerating apparatus having openings for the passage of air therethrough, a motor-driven compressor, and a condenser connected to the compressor, including a heat-exchanger and a motor-driven air impeller for forcing air through said casing; and an assembly comprising an inside casing, including separable mating sections, a motor-driven impeller for forcing air across the evaporator and through said inside casing; of a supporting structure, including posts between the assemblies, extending through an opening in, and outside and inside of the roof of, a building, means over said openings to which the posts are secured,
refrigerant conduits between the evaporator and the refrigerating apparatus, having portions extending through Cil one of the posts, one of the sections of the casing being xedly mounted on the posts, and the other section being removably secured to the posts, the motor and impeller for the evaporator being removably mounted in the fixed casing section.
11. The combination with an assembly of refrigerating apparatus, comprising; a casing for the refrigerating apparatus having openings for the passage of air therethrough, a motor-driven compressor, and a condenser connected to the compressor, including a heat-exchanger and a motor-driven air impeller for forcing air through said casing; and an assembly comprising an inside casing, including separable mating sections, a motor-driven impeller for forcing air across the evaporator and through said inside casing; of a supporting structure, including posts between the assemblies, extending through an opening in, and outside and inside of the roof of, a building, means over said opening to which the posts are secured, refrigerant conduits between the evaporator and the rcfrigerating apparatus, one of the sections of the casing being tixedly mounted on the posts, and the other section being removably secured to the posts, the motor and impeller for the evaporator being removably mounted in the xed casing section, the evaporator being mounted in the fixed section.
12. The combination with; an assembly of refrigerating apparatus comprising, a casing for the refrigerating apparatus having openings in opposite ends for the passage of air therethrough, a motor-driven compressor, and a condenser connected to the compressor including a heatexchanger, and a motor-driven air impeller for forcing air through said casing; and an assembly of cooling apparatus comprising a casing therefor having openings in opposite sides for the passage of air therethrough, and means for collecting condensate, a motor-driven impeller for forcing air across the evaporator and through the casing of the cooling apparatus, and a pump for the condensate; of a supporting structure for said assemblies, including posts between the assemblies, extending through an opening in, and outside and inside of the roof of, a building, refrigerant conduits between the evaporator and the refrigeting apparatus, and a conduit between the pump and the heat-exchanger of the condenser.
13. The combination with; an assembly of refrigerating apparatus comprising, a casing for the refrigerating apparatus having openings in opposite ends for the passage of air therethrough, a motor-driven compressor, and a condenser connected. to the compressor including a heat-exchanger, and a motor-driven air impeller for forcing air through said casing; and an assembly of cooling apparatus comprising a casing therefor, having openings in opposite sides for the passage of air therethrough, and means for collecting condensate, a motor-driven impeller for forcing air across the evaporator and through the casing of the cooling apparatus, and a pump for the condensate; of a supporting structure for said assemblies, including posts between the assemblies, extending through an opening in, and outside and inside of the roof of, a building, refrigerant conduits between the evaporator and the refrigerating apparatus, and a conduit between the pump and the heat-exchanger of the condenser, extending through one of said posts.
14. The combination with; an assembly of refrigerating apparatus comprising; a casing for the refrigerating apparatus having openings in oppositc ends for the passage of air therethrough, a motor-driven compressor, and a condenser connected to the compressor including a heat-exchanger, and a motor-driven air impeller for forcing air through said casing; and an assembly of cooling apparatus comprising a casing therefor, having openings in opposite sides for the passage of air therethrough, a motor-driven impeller for forcing air across the evaporator and through its casing; of a supporting structure for said assemblies, including posts between the assemblies, extending through an opening in, and
outside and inside of the roof of, a building, a plate over said opening to which the posts are secured, a cross-bar between the posts on which the motor-driven impeller of the refrigerating apparatus is mounted, cross-bars between the posts on which the motor and impeller of the cooling apparatus are mounted, and refrigerant conduits between the evaporator and the refrigerating apparatus, extending through one of the posts.
15. The combination with; an assembly of refrigerating apparatus comprising, a casing for the refrigerating apparatus having openings in opposite ends for the passage of air therethrough, a motor-driven compressor, and a condenser connected to the compressor including a heat-exchanger, and a motor-driven air impeller for forcing air through said casing; and an assembly of cooling apparatus comprising a casing therefor, having openings in opposite sides for the passage of air therethrough, a motor-driven impeller for forcing air across the evaporator and through its casing; of a supporting structure for said assemblies, including posts between the assemblies, extending through an opening in, and outside and inside of the roof of, a building, a plate over said opening to which the posts are secured and on which the compressor is mounted, a cross-bar between the posts on which the motor-driven impeller of the refrigerating apparatus is mounted, cross-bars between the posts on which the motor and impeller of the cooling apparatus is mounted, refrigerant conduits between the evaporator and the refrigerating apparatus, extending through one of the posts.
16. The combination with; an assembly of refrigerating apparatus comprising, a casing for the refrigerating apparatus having openings for the passage of air therethrough, a motor-driven compressor, and a condenser connected to the compressor including a heat-exchanger, anda motor-driven air impeller for forcing air through said casing; and an assembly of cooling apparatus comprising a casing therefor, the cooling apparatus having openings for the passage of air therethrough, a motordriven impeller for forcing air across the evaporator and through the last named casing; of a supporting structure for said assemblies, including posts between the assemblies, extending through an opening in, and outside and inside of the roof of, a building, means over said opening to which the posts are secured, refrigerant conduits between the evaporator and the refrigerating apparatus, and electrical connections for the compressor motor and the impeller motor of the refrigerating apparatus, extending through one of the posts.
References Cited inthe le of this patent UNITED STATES PATENTS 2,180,915 Stebbins Nov. 21, 1939 2,232,235 Hintze Feb. 18, 1941 2,303,577 Ottenheimer Dec. 1, 1942 2,443,472 Mayo June 15, 1948 2,475,841 Jones July 12, 1949 2,500,852 Money Mar. 14, 1950 2,682,757 Borgerd July 6, 1954
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US2952994A (en) * 1960-09-20 air conditioner element arrangement
US3173274A (en) * 1963-09-05 1965-03-16 Budd Co Rapid transit car air conditioning system
US3176474A (en) * 1963-10-24 1965-04-06 Gen Electric Air conditioning unit
US3225562A (en) * 1964-03-06 1965-12-28 Kramer Trenton Co Roof top refrigeration unit
US3848428A (en) * 1973-05-21 1974-11-19 Vapor Corp Air conditioning system for a locomotive cab
US4995243A (en) * 1988-01-28 1991-02-26 F Muller Pty. Limited Drop-in refrigeration unit
US5029451A (en) * 1988-09-12 1991-07-09 Mitsubishi Jukogyo Kabushiki Kaisha Air conditioning apparatus
US20030154737A1 (en) * 2000-04-25 2003-08-21 Xavier Pelleter Ventilation and air heating treatment installation in a building comprising several housing units
US20030228142A1 (en) * 1998-11-16 2003-12-11 Reiker Kenneth H. Ceiling mounted heating and cooling device and method therefor
US20120118003A1 (en) * 2009-07-31 2012-05-17 Carrier Corporation Refrigerated container having refrigeration unit integrated with cargo box
US8683821B2 (en) 2010-04-15 2014-04-01 Franklin Electric Company, Inc. Sediment trap system and method

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US2443472A (en) * 1946-05-23 1948-06-15 Bishop & Babcock Mfg Co Refrigerator tractor
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US2232235A (en) * 1937-12-13 1941-02-18 Hermes Patentverwertungs Gmbh Refrigerating apparatus of the compression type, and particularly to an improved evaporator therefor
US2303577A (en) * 1940-08-20 1942-12-01 Reuben E Ottenheimer Portable refrigerating apparatus
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Cited By (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2952994A (en) * 1960-09-20 air conditioner element arrangement
US3173274A (en) * 1963-09-05 1965-03-16 Budd Co Rapid transit car air conditioning system
US3176474A (en) * 1963-10-24 1965-04-06 Gen Electric Air conditioning unit
US3225562A (en) * 1964-03-06 1965-12-28 Kramer Trenton Co Roof top refrigeration unit
US3848428A (en) * 1973-05-21 1974-11-19 Vapor Corp Air conditioning system for a locomotive cab
US4995243A (en) * 1988-01-28 1991-02-26 F Muller Pty. Limited Drop-in refrigeration unit
US5029451A (en) * 1988-09-12 1991-07-09 Mitsubishi Jukogyo Kabushiki Kaisha Air conditioning apparatus
US20030228142A1 (en) * 1998-11-16 2003-12-11 Reiker Kenneth H. Ceiling mounted heating and cooling device and method therefor
US20030154737A1 (en) * 2000-04-25 2003-08-21 Xavier Pelleter Ventilation and air heating treatment installation in a building comprising several housing units
US6694769B2 (en) * 2000-04-25 2004-02-24 Aldes Aeraulique Ventilation and air heating treatment installation in a building comprising several housing units
US20120118003A1 (en) * 2009-07-31 2012-05-17 Carrier Corporation Refrigerated container having refrigeration unit integrated with cargo box
US8683821B2 (en) 2010-04-15 2014-04-01 Franklin Electric Company, Inc. Sediment trap system and method

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