US2627669A - Combined drier and room dehumidifier - Google Patents

Combined drier and room dehumidifier Download PDF

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US2627669A
US2627669A US255120A US25512051A US2627669A US 2627669 A US2627669 A US 2627669A US 255120 A US255120 A US 255120A US 25512051 A US25512051 A US 25512051A US 2627669 A US2627669 A US 2627669A
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clothes
refrigerant
holdover
air
room
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US255120A
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Robert R Candor
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Motors Liquidation Co
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Motors Liquidation Co
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    • D—TEXTILES; PAPER
    • D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
    • D06F—LAUNDERING, DRYING, IRONING, PRESSING OR FOLDING TEXTILE ARTICLES
    • D06F58/00—Domestic laundry dryers
    • D06F58/20—General details of domestic laundry dryers 
    • D06F58/206—Heat pump arrangements
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F3/00—Air-conditioning systems in which conditioned primary air is supplied from one or more central stations to distributing units in the rooms or spaces where it may receive secondary treatment; Apparatus specially designed for such systems
    • F24F3/12—Air-conditioning systems in which conditioned primary air is supplied from one or more central stations to distributing units in the rooms or spaces where it may receive secondary treatment; Apparatus specially designed for such systems characterised by the treatment of the air otherwise than by heating and cooling
    • F24F3/14—Air-conditioning systems in which conditioned primary air is supplied from one or more central stations to distributing units in the rooms or spaces where it may receive secondary treatment; Apparatus specially designed for such systems characterised by the treatment of the air otherwise than by heating and cooling by humidification; by dehumidification
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F3/00—Air-conditioning systems in which conditioned primary air is supplied from one or more central stations to distributing units in the rooms or spaces where it may receive secondary treatment; Apparatus specially designed for such systems
    • F24F3/12—Air-conditioning systems in which conditioned primary air is supplied from one or more central stations to distributing units in the rooms or spaces where it may receive secondary treatment; Apparatus specially designed for such systems characterised by the treatment of the air otherwise than by heating and cooling
    • F24F3/14—Air-conditioning systems in which conditioned primary air is supplied from one or more central stations to distributing units in the rooms or spaces where it may receive secondary treatment; Apparatus specially designed for such systems characterised by the treatment of the air otherwise than by heating and cooling by humidification; by dehumidification
    • F24F3/153—Air-conditioning systems in which conditioned primary air is supplied from one or more central stations to distributing units in the rooms or spaces where it may receive secondary treatment; Apparatus specially designed for such systems characterised by the treatment of the air otherwise than by heating and cooling by humidification; by dehumidification with subsequent heating, i.e. with the air, given the required humidity in the central station, passing a heating element to achieve the required temperature
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F3/00—Air-conditioning systems in which conditioned primary air is supplied from one or more central stations to distributing units in the rooms or spaces where it may receive secondary treatment; Apparatus specially designed for such systems
    • F24F3/12—Air-conditioning systems in which conditioned primary air is supplied from one or more central stations to distributing units in the rooms or spaces where it may receive secondary treatment; Apparatus specially designed for such systems characterised by the treatment of the air otherwise than by heating and cooling
    • F24F3/14—Air-conditioning systems in which conditioned primary air is supplied from one or more central stations to distributing units in the rooms or spaces where it may receive secondary treatment; Apparatus specially designed for such systems characterised by the treatment of the air otherwise than by heating and cooling by humidification; by dehumidification
    • F24F2003/144—Air-conditioning systems in which conditioned primary air is supplied from one or more central stations to distributing units in the rooms or spaces where it may receive secondary treatment; Apparatus specially designed for such systems characterised by the treatment of the air otherwise than by heating and cooling by humidification; by dehumidification by dehumidification only

Definitions

  • This invention relates to domestic appliances and more particularly to a combined clothes dryer and room air dehumidifier.
  • an apparatus which is capable of drying clothes without producing harmful relative humidities during the drying operation in the space in which the apparatus is located, and which is capable of reducing undesirably high relative humidities which ordinarily are prevalent in such spaces during the time that such apparatus is not drying clothes.
  • the basement, utility room or similar place in which a clothes dryer is to be placed will be referred to hereafter as a room, for convenience and brevity.
  • An object of this invention is to provide an apparatus having a room dehumidifier of normal capacity which is utilized to dehumidify room air and to store refrigerating capacity while the apparatus is not being used as a clothes dryer, and which utilizes the stored refrigerating capacity to condense the vapor driven off theclothes during a drying operation. This avoids the necessity of providing an excessively large refrigerating apparatus which otherwise would be necessary to condense the vapor in the short time during which clothes are being dried.
  • Another object of this invention is to provide a combined clothes dryer and room air dehumidiher of such a character that it dehumidifies the room air and stores up refrigeration capacity while the clothes dryer is inactive or is not drying clothes, and utilizes the stored up refrigerating capacity for condensing vapor from the clothes dryer while the clothes dryer is drying clothes.
  • Figure 1 is a diagrammatic view generally in vertical cross-section of a combined clothes dryer and room air dehumidifier embodying features of my invention
  • Figure 2 is a wiring diagram applicable to the apparatus shown in Figure 1.
  • a combined clothes dryer and room air dehumidifier includes a clothes dryer cabinet 9 having a clothes drying chamber [0 and a vapor condenser H therein.
  • the room air dehumidifier includes duct means l2 forming an air passageway through which room air is circulated through cabinet 9.
  • a refrigerating system within cabinet 9 includes a refrigerant condensing portion (such as a refrigerant condenser 13 associated with a refrigerant motor-compressor l4) and a refrigerant evaporating portion (including one or more evaporators l5 and 16).
  • the vapor condenser H is in the form of a closed insulated tank i8 having vapor condensing passages extending therethrough and contains a holdover medium ll.
  • the medium I1 is provided for storing up refrigcrating capacity during the period of time when the clothes dryer is inactive or is not drying clothes.
  • Means for cooling the holdover IT by the refrigerant evaporating portion of the refrigerating system while the clothes dryer is not drying clothes is provided.
  • This cooling means may take any convenient form and in the present disclosure the refrigerant evaporator 16 is located in tank or compartment l8 and is so constructed that the refrigerant evaporating portion It cools the holdover I! while the clothes dryer is inactive.
  • Means are provided for dehumidifying the room air circulated through the passageway l2, while the clothes dryer is inactive. This may be accomplished by locating the refrigerant evaporator [5, the refrigerant condenser l3, and the refrigerant motor-compressor M in the passageway l2,' together with an air circulating fan i9 driven by the motor 20, which causes room air to enter the passageway l2 at some such point as air inlet 2!, be dehumidified in the passageway, and be discharged through air outlet 22 back into the room.
  • the clothes dryer conveniently may include a rotatable perforated agitator drum 24 located in a stationary casing 25 which may have an insulated covering therearound.
  • the drum 24 may be driven by a clothes dryer motor 26 through the medium of a speed reduction transmission, such as a belt drive diagrammatically indicated at 21.
  • Aheater 28 is provided, preferably electric, and may include reflectors 29; If desired,
  • an air inlet 30 may be provided, in casing 25, for the chamber 10 and may be controlled by a damper 3! which is operated by a solenoid 32 to be open while clothes are being dried and to be closed at other times.
  • the vapor condenser I! may include a plurality of tubes into which the water vapor'from the clothes drying drum 24 may flow and may be condensed.
  • the water thus condensed flows down the tubes and through the screen 36, which forms the bottom of a removable receptacle 35, and then falls into the bottom of sump 36. Any lint released by the clothes falls into the vapor condenser Ii, and then into the screen 34.
  • the water in sump 36 flows through the pipe 31 to a pump 38, driven by motor 29 through transmission 39, from whence the water can be discharged into a drain or stationary laundry tub by the pipe 40.
  • the holdover medium I? may store refrigerating capacity by being cooled throughout in the liquid stage, or preferably by a partial or complete change of phase from the liquid to the solid state.
  • a holdover medium is chosen which has a solidifying temperature slightly above the normal operating temperature of the refrigerant evaporating portion. For example, if the normal temperature of the refrigerant evaporating portion is 40 F., then the holdover may have a freezing temperature slightly above 40 F.
  • the vapor leaving or being driven from the clothes by the heaters 28 may be driven by its own pressure into the vapor condenser H; but preferably this vapor is carried by a relatively small volume of air circulating from the room into the opening 30, through the drum 24 and eventually mixing with the room air entering at the opening 2! and thence being discharged through the opening 22, as indicated by the arrows, at a relative humidity that is not harmful to the room in which the apparatus is located.
  • Controls are provided whereby the apparatus may be operated with the room air dehumidifier operating under automatic controls, or operating independently of any automatic controls.
  • a controller or master switch 58 is provided in the source of electricity, line L1, i
  • the movable contact arm 5! which is movable from an off position to either a non-automatic position or to an automatic position.
  • the movable contact arm 5! may be moved from the off position into engagement with the stationary contacts 52, 53, and 58.
  • the dehumidifier operates independently of any automatic controls; and when the movable contact arm 5! engages contacts 53 and 54, the dehumidifier operates under automatic control.
  • the clothes dryer may be energized by manipulation of its individual time controlled switch 64.
  • the apparatus may operate as a room air dehumidifier alone, without any clothes drying action, and with the master switch 50 in either operating position, as long as dryer switch 64 is in its oif position. Under these conditions, the motor-compressor l4 and the fan motor 26 are energized. Compressed refrigerant flows from the motor-compressor Hi to the refrigerant condenser i 3 then through the refrigerant restrictor or expander 55, then through the refrigerant evaporating portions I6 and I5 and from thence back to the refrigerant motorcompressor i4.
  • room air is circulated by the fan l9, the air entering from the room through the opening 2
  • the vapor in the room air is condensed on surfaces of the refrigerant evaporator i5, the condensed water dripping on the floor of the passageway l2, and flowing into the sump 36, from whence it is diserant evaporator 16.
  • the apparatus operates with the dehumidifier under automatic controls when the movable cone tact arm 5
  • the refrigerating system is energized through the line 65, passing either through the thermostatic switch 6! (the bulb 62 of which is embedded in the holdover medium I?) or through the room humidistatic switch 61a, or both.
  • the switches 61 and 61a have off and on adjusted positions, as is well known.
  • remains closed, and the motor-compressor I4 is energized.
  • the switch 61a remains closed and energizes the motor-compressor (4.
  • the motor-compressor I4 is stopped.
  • the clothes dryer may be energized while the switch 5G is in either active position, i. e., with 5! in contact with either 52 or 54.
  • the electric line 63 from contact 53 passes through the clothes dryer time controlled switch 64, then to the dryer motor 26, solenoid 32 and heater 23 (the other side of the heater may be connected to the neutral line, or if desired to a 220 volt line L2, as indicated in dotted lines).
  • the dryer switch 6 5 is of the usual type, having a handle 65 which may be moved from an off position to any one of several minute on positions.
  • the motor-compressor Hi When the master switch or controller 50 is moved to the non-automatic position, i. c. with 1 arm 5
  • of opening 30 remains closed by gravity at all times that no clothes drying action is required, since the solenoid 32 is not energized.
  • the damper 31 opens whenever a clothes drying action is required, since the closing of the switch 64 for this purpose automatically energizes the solenoid 32 which in turn causes the damper 3i by way of an arm, bell-crank lever or the like, to open. This damper action prevents the holdover i? from being unnecessarily warmed when there is no clothes drying action required.
  • stances Il'ie open position of damper Si is indicated in Fig. 1 by the dot-dash line showing thereof.
  • the combined apparatus will during and after a clothes drying action thereof remove moisture humidifier comprising: a clothes dryer having a damp clothes drying chamber and a vapor condenser; a room air dehumidifier having means forming a passageway through which room air is circulated; a refrigerating system including a refrigerant condensing portion and a refrigerant evaporating portion; a holdover medium thermally associated with said vapor condenser, means for cooling said holdover medium by said refrigerant evaporating portion while said clothes dryer is inactive for drying damp fabrics, and means for dehumidifying the room air circulated through said passageway including said refrigerant evaporating portion and said refrigerant condensing portion.
  • a combined clothes dryer and room air dehumidifier comprising: a clothes dryer having a damp clothes drying chamber and a vapor condenser; a room air dehumidifier having means forming a passageway through which room air is circulated; a refrigerating system including a refrigerant condensing portion and a refrigerant evaporating portion; a holdover medium thermally associated with said vapor condenser, means for cooling said holdover medium by said refrigerant evaporating portion while said clothes dryer is inactive for drying damp fabrics, means for dehumidifying the room air circulated through said passageway including said refrigerant evaporating portion and said refrigerant condensing portion, and said last named means being operable while said clothes dryer in inactive for drying damp clothes.
  • a combined clothes dryer and room air dehumidifier comprising: a clothes dryer having, a
  • damp clothes drying chamber and a vapor condenser a room air dehumidifier having means forming a passageway through which room air is circulated; a refrigerating system including a refrigerant condensing portion and a refrigerant evaporating portion; a holdover medium thermally associated with said vapor condenser, means for cooling said holdover medium by said refrigerant evaporating portion while said clothes dryer is inactive for drying damp fabrics, means for dehumidifying the room air circulated through said passageway including said refrigerant evaporating portion and said refrigerant condensing portion, and means for controlling the operation of said room air dehumidifying means in response to the temperature of said holdover medium.
  • a combined clothes dryer and room air dehumidifier comprising: a clothes dryer having a damp clothes drying chamber and a vapor condenser; a room air dehumidifier having means forming a passageway through which room air is circulated; a refrigerating system including a refrigerant evaporating portion and a refrigerant condensing portion with a motor-compressor, a holdover medium thermally associated withsaid vapor condenser, means for cooling said holdover medium by said refrigerant evaporating portion of said refrigerating system, means for dehumidifying the room air circulated through said passageway including said refrigerant evaporatihg portion and said refrigerant condensing portion, said clothes dryer including a time con trolled switch, a controiler for connecting said switch to a source of'electricity and for simultaneously energizing said motor-compressor of said refrigerating system, and said time controlled switch being operable at will to energize said
  • a combined clothes dryer and room air dehumidifier comprising; a clothes dryer having a damp clothes drying chamber and a vapor condenser; a room air dehumidifier having means forming a passageway through which room airis circulated; a refrigerating system including a refrigerant evaporating portion and a refrigerant condensing portion with a motor-compressor, a holdover medium thermally associated with said vapor condenser, means for cooling said holdover medium by said refrigerant evaporating por-' tion of said refrigerating system, means for de-' humidifying the room air circulated through said passageway including said refrigerant evaporating portion and said refrigerant condensing'portion, said clothes dryer including a time controlled switch, a controller for connecting said switch to a source of electricity and for simultaneously energizing and causing continuous operation of said motor-compressor, said time controlled switch being operable at will to energize said clothes dryer, and said controller being mov
  • a clothes dryer cabinet a container within said cabinet for receiving dampj clothes to be dried, means for heating the damp clothes received in said container, a vapor condenser within said cabinet through which heated moist air leaving the clothes flows, a holdover medium in thermal exchange relationship with said vapor condenser, means for cooling said holdover medium to cause said vapor condenser to remove moisture from the heated moist air flowing therethrough prior to its egress from' said cabinet
  • said cooling means including a refrigerant evaporating portion of a closed refrigerating system within said cabinet, said refrigerating system including another refrigerant evaporating portion isolated from the holdover medium cooling portion thereof, a refrigerant condensing portion and an air circulating means, said air circulating means being adapted to draw air into said cabinet over said another refrigerant evaporating portion and said refrigerant condensing portion of the refrigerating system and to discharge the air from said cabinet, and said another refrigerant evaporating portion and said
  • a clothes dryer cabinet a container within said cabinet for receiving damp clothes to be dried, means for heating the damp clothes received in said container, a vapor condenser within said cabinet through which heated moist air leaving the clothes flows, a holdover medium in thermal exchange relationship with said vapor condenser, means for cooling said holdover medium to cause said vapor condenser to remove moisture from the heated moist air flowing therethrough prior to its egress from said cabinet
  • said cooling means including a refrigerant evaporating portion of a closed refrigerating system within said cabinet, said refrigerating system including another refrigerant evapcrating portion isolated from the holdover medium cooling portion thereof, a refrigerant condensing portion and an air circulating means, said circulating means being adapted to draw air into said cabinet over said another refrigerant evaporating portion and said refrigerant condensing portion of the refrigerating system and to discharge the air from said cabinet, said another refrigerant evaporating portion and said
  • said cooling means including a refrigerating evaporating portion of a closed refrigcrating system within said cabinet, said refrigerating system including another refrigerant evaporating portion isolated from the holdover medium cooling portion thereof and a refrigerant condensing portion with a motor-compressor,
  • an air circulating means said air circulating means being adapted to draw air into said cabinet over said refrigerant condensing portion of the refrigerating system and to discharge the air from said cabinet, said refrigerant condensing portion of said system condensing moisture out of the air in the room in which said cabinet is located, a time controlled switch for energizing and deenergizing said heating means, a
  • controller for connecting said switch to a source of electricity and for simultaneously energizing and causing continuous operation of said motorcompressor and said air circulating means, and said time controlled switch being operable at will to energize said heating means.
  • a clothes dryer cabinet a container within said cabinet for receiving damp clothes to be dried, means for heating the damp clothes received in said container, a vapor condenser within said cabinet through which heated moist air leaving the clothes flows, a holdover medium in thermal exchange relationship with said vapor condenser, means for cooling said holdover medium to cause said vapor condenser to remove moisture from the heated moist air flowing therethrough prior to its egress from said cabinet, said cooling means including a refrigerant evaporating portion of a closed refrigerating system within said cabinet, said refrigerating system including another refrigerant evaporating portion isolated from the holdover medium cooling portion thereof and a refrigerant condensing portion with a motor-compressor, an air circulating means, said air circulating means being adapted to draw air into said cabinet over said refrigerant condensing portion of the refrigerating system and to discharge the air from said c binet, said refrigerant condensing portion of said system condensing

Description

Feb. 10, 1953 R. R. cANDoR COMBINED DRIER AND ROOM DEHUMI'DIFIER Filed Nov. 6, 1951 Fix 1 INVENTOR. Zoazxr. IP. CA vnR.
Patented Feb. 10, 1953 COMBINED DRIER AND ROOM DEHUMIDIFIER Robert R. Candor, Dayton, Ohio, assignor to General Motors Corporation, Dayton, Ohio, a
corporation of Delaware Application November 6, 1951, Serial No. 255,120
9 Claims.
This invention relates to domestic appliances and more particularly to a combined clothes dryer and room air dehumidifier.
: Home laundry equipment usually is placed in the basement or in a small utility room. Previous clothes dryers of such equipment tend to discharge large quantities of water vapor into such basement or small utility room. This produces or aggravates high relative humidities in these places, causing undesirable rusting or molding therein.
According to this invention, an apparatus is provided which is capable of drying clothes without producing harmful relative humidities during the drying operation in the space in which the apparatus is located, and which is capable of reducing undesirably high relative humidities which ordinarily are prevalent in such spaces during the time that such apparatus is not drying clothes.
The basement, utility room or similar place in which a clothes dryer is to be placed will be referred to hereafter as a room, for convenience and brevity.
An object of this invention is to provide an apparatus having a room dehumidifier of normal capacity which is utilized to dehumidify room air and to store refrigerating capacity while the apparatus is not being used as a clothes dryer, and which utilizes the stored refrigerating capacity to condense the vapor driven off theclothes during a drying operation. This avoids the necessity of providing an excessively large refrigerating apparatus which otherwise would be necessary to condense the vapor in the short time during which clothes are being dried.
Another object of this invention is to provide a combined clothes dryer and room air dehumidiher of such a character that it dehumidifies the room air and stores up refrigeration capacity while the clothes dryer is inactive or is not drying clothes, and utilizes the stored up refrigerating capacity for condensing vapor from the clothes dryer while the clothes dryer is drying clothes.
Further objects of my invention will be apparent from the following description, reference being had to the accompanying drawings wherein preferred forms of the invention are clearly shown.
In the drawings:
Figure 1 is a diagrammatic view generally in vertical cross-section of a combined clothes dryer and room air dehumidifier embodying features of my invention; and Figure 2 is a wiring diagram applicable to the apparatus shown in Figure 1.
7 A combined clothes dryer and room air dehumidifier, according to my invention, includes a clothes dryer cabinet 9 having a clothes drying chamber [0 and a vapor condenser H therein. The room air dehumidifier includes duct means l2 forming an air passageway through which room air is circulated through cabinet 9. A refrigerating system within cabinet 9 includes a refrigerant condensing portion (such as a refrigerant condenser 13 associated with a refrigerant motor-compressor l4) and a refrigerant evaporating portion (including one or more evaporators l5 and 16). The vapor condenser H is in the form of a closed insulated tank i8 having vapor condensing passages extending therethrough and contains a holdover medium ll. The medium I1 is provided for storing up refrigcrating capacity during the period of time when the clothes dryer is inactive or is not drying clothes. Means for cooling the holdover IT by the refrigerant evaporating portion of the refrigerating system while the clothes dryer is not drying clothes is provided. This cooling means may take any convenient form and in the present disclosure the refrigerant evaporator 16 is located in tank or compartment l8 and is so constructed that the refrigerant evaporating portion It cools the holdover I! while the clothes dryer is inactive. Means are provided for dehumidifying the room air circulated through the passageway l2, while the clothes dryer is inactive. This may be accomplished by locating the refrigerant evaporator [5, the refrigerant condenser l3, and the refrigerant motor-compressor M in the passageway l2,' together with an air circulating fan i9 driven by the motor 20, which causes room air to enter the passageway l2 at some such point as air inlet 2!, be dehumidified in the passageway, and be discharged through air outlet 22 back into the room.
The clothes dryer conveniently may include a rotatable perforated agitator drum 24 located in a stationary casing 25 which may have an insulated covering therearound. The drum 24 may be driven by a clothes dryer motor 26 through the medium of a speed reduction transmission, such as a belt drive diagrammatically indicated at 21. Aheater 28 is provided, preferably electric, and may include reflectors 29; If desired,
an air inlet 30 may be provided, in casing 25, for the chamber 10 and may be controlled by a damper 3! which is operated by a solenoid 32 to be open while clothes are being dried and to be closed at other times.
The vapor condenser I! may include a plurality of tubes into which the water vapor'from the clothes drying drum 24 may flow and may be condensed. The water thus condensed flows down the tubes and through the screen 36, which forms the bottom of a removable receptacle 35, and then falls into the bottom of sump 36. Any lint released by the clothes falls into the vapor condenser Ii, and then into the screen 34. The water in sump 36 flows through the pipe 31 to a pump 38, driven by motor 29 through transmission 39, from whence the water can be discharged into a drain or stationary laundry tub by the pipe 40.
The holdover medium I? may store refrigerating capacity by being cooled throughout in the liquid stage, or preferably by a partial or complete change of phase from the liquid to the solid state. Preferably a holdover medium is chosen which has a solidifying temperature slightly above the normal operating temperature of the refrigerant evaporating portion. For example, if the normal temperature of the refrigerant evaporating portion is 40 F., then the holdover may have a freezing temperature slightly above 40 F.
The vapor leaving or being driven from the clothes by the heaters 28 may be driven by its own pressure into the vapor condenser H; but preferably this vapor is carried by a relatively small volume of air circulating from the room into the opening 30, through the drum 24 and eventually mixing with the room air entering at the opening 2! and thence being discharged through the opening 22, as indicated by the arrows, at a relative humidity that is not harmful to the room in which the apparatus is located.
Controls are provided whereby the apparatus may be operated with the room air dehumidifier operating under automatic controls, or operating independently of any automatic controls. For this purpose, a controller or master switch 58 is provided in the source of electricity, line L1, i
which is movable from an off position to either a non-automatic position or to an automatic position. For this purpose, the movable contact arm 5! may be moved from the off position into engagement with the stationary contacts 52, 53, and 58. When arm BI is brought into contact with the contacts 52 and 53, the dehumidifier operates independently of any automatic controls; and when the movable contact arm 5! engages contacts 53 and 54, the dehumidifier operates under automatic control. In either case the clothes dryer may be energized by manipulation of its individual time controlled switch 64.
The apparatus may operate as a room air dehumidifier alone, without any clothes drying action, and with the master switch 50 in either operating position, as long as dryer switch 64 is in its oif position. Under these conditions, the motor-compressor l4 and the fan motor 26 are energized. Compressed refrigerant flows from the motor-compressor Hi to the refrigerant condenser i 3 then through the refrigerant restrictor or expander 55, then through the refrigerant evaporating portions I6 and I5 and from thence back to the refrigerant motorcompressor i4. At the same time, room air is circulated by the fan l9, the air entering from the room through the opening 2|, in a wall of cabinet 9, into the passageway l2 and thence out through the screened outlet 22. The vapor in the room air is condensed on surfaces of the refrigerant evaporator i5, the condensed water dripping on the floor of the passageway l2, and flowing into the sump 36, from whence it is diserant evaporator 16.
The apparatus operates with the dehumidifier under automatic controls when the movable cone tact arm 5| engages the contacts 53 and 54. The
refrigerating system is energized through the line 65, passing either through the thermostatic switch 6! (the bulb 62 of which is embedded in the holdover medium I?) or through the room humidistatic switch 61a, or both. The switches 61 and 61a have off and on adjusted positions, as is well known. As long as the holdover I! has not been cooled sufiiciently, the switch 6| remains closed, and the motor-compressor I4 is energized. As long as the room has not been sufficiently dehumidified, the switch 61a remains closed and energizes the motor-compressor (4. When both the holdover l1 and the room are in proper condition, the motor-compressor I4 is stopped.
The clothes dryer may be energized while the switch 5G is in either active position, i. e., with 5! in contact with either 52 or 54. The electric line 63 from contact 53 passes through the clothes dryer time controlled switch 64, then to the dryer motor 26, solenoid 32 and heater 23 (the other side of the heater may be connected to the neutral line, or if desired to a 220 volt line L2, as indicated in dotted lines). The dryer switch 6 5 is of the usual type, having a handle 65 which may be moved from an off position to any one of several minute on positions.
7 This movement of handle 65 closes the switch 64 deenergized. Switches of this character are well known and hence are not further disclosed herein.
When the master switch or controller 50 is moved to the non-automatic position, i. c. with 1 arm 5| engaging contact 52, the motor-compressor Hi operates continuously. The first refrigerating action is concentrated on the holdover medium i7, and this holdover is cooled to the necessary condition. Thereafter the refrigerant liquid overflows evaporator portion 16 into the evaporator I 5, which then proceeds to dehumidify the air entering through opening 2|. From that time on, the motor-compressor Hi and fan 19 continue to dehumidify the room air until such time as the switch 50 is moved to some other position.
The damper 3| of opening 30 remains closed by gravity at all times that no clothes drying action is required, since the solenoid 32 is not energized. The damper 31 opens whenever a clothes drying action is required, since the closing of the switch 64 for this purpose automatically energizes the solenoid 32 which in turn causes the damper 3i by way of an arm, bell-crank lever or the like, to open. This damper action prevents the holdover i? from being unnecessarily warmed when there is no clothes drying action required.
stances Il'ie open position of damper Si is indicated in Fig. 1 by the dot-dash line showing thereof.
From the foregoing it should be apparent that a novel combined clothes dryer and room air dehumidifier is provided. Ehe provision of a holdover medium for the clothes dryer vapor condenser permits cooling this medium with a relatively small capacity and inexpensive refrigerating system whereby a cooler of great capacity is afforded so as to be effective throughout a clothes drying action of the dryer and so as to maintain the clothes dryer in readiness for a drying action. The combined apparatus will during and after a clothes drying action thereof remove moisture humidifier comprising: a clothes dryer having a damp clothes drying chamber and a vapor condenser; a room air dehumidifier having means forming a passageway through which room air is circulated; a refrigerating system including a refrigerant condensing portion and a refrigerant evaporating portion; a holdover medium thermally associated with said vapor condenser, means for cooling said holdover medium by said refrigerant evaporating portion while said clothes dryer is inactive for drying damp fabrics, and means for dehumidifying the room air circulated through said passageway including said refrigerant evaporating portion and said refrigerant condensing portion.
2. A combined clothes dryer and room air dehumidifier comprising: a clothes dryer having a damp clothes drying chamber and a vapor condenser; a room air dehumidifier having means forming a passageway through which room air is circulated; a refrigerating system including a refrigerant condensing portion and a refrigerant evaporating portion; a holdover medium thermally associated with said vapor condenser, means for cooling said holdover medium by said refrigerant evaporating portion while said clothes dryer is inactive for drying damp fabrics, means for dehumidifying the room air circulated through said passageway including said refrigerant evaporating portion and said refrigerant condensing portion, and said last named means being operable while said clothes dryer in inactive for drying damp clothes.
3. A combined clothes dryer and room air dehumidifier comprising: a clothes dryer having, a
damp clothes drying chamber and a vapor condenser; a room air dehumidifier having means forming a passageway through which room air is circulated; a refrigerating system including a refrigerant condensing portion and a refrigerant evaporating portion; a holdover medium thermally associated with said vapor condenser, means for cooling said holdover medium by said refrigerant evaporating portion while said clothes dryer is inactive for drying damp fabrics, means for dehumidifying the room air circulated through said passageway including said refrigerant evaporating portion and said refrigerant condensing portion, and means for controlling the operation of said room air dehumidifying means in response to the temperature of said holdover medium.
4. A combined clothes dryer and room air dehumidifier comprising: a clothes dryer having a damp clothes drying chamber and a vapor condenser; a room air dehumidifier having means forming a passageway through which room air is circulated; a refrigerating system including a refrigerant evaporating portion and a refrigerant condensing portion with a motor-compressor, a holdover medium thermally associated withsaid vapor condenser, means for cooling said holdover medium by said refrigerant evaporating portion of said refrigerating system, means for dehumidifying the room air circulated through said passageway including said refrigerant evaporatihg portion and said refrigerant condensing portion, said clothes dryer including a time con trolled switch, a controiler for connecting said switch to a source of'electricity and for simultaneously energizing said motor-compressor of said refrigerating system, and said time controlled switch being operable at will to energize said clothes dryer.
5. A combined clothes dryer and room air dehumidifier comprising; a clothes dryer having a damp clothes drying chamber and a vapor condenser; a room air dehumidifier having means forming a passageway through which room airis circulated; a refrigerating system including a refrigerant evaporating portion and a refrigerant condensing portion with a motor-compressor, a holdover medium thermally associated with said vapor condenser, means for cooling said holdover medium by said refrigerant evaporating por-' tion of said refrigerating system, means for de-' humidifying the room air circulated through said passageway including said refrigerant evaporating portion and said refrigerant condensing'portion, said clothes dryer including a time controlled switch, a controller for connecting said switch to a source of electricity and for simultaneously energizing and causing continuous operation of said motor-compressor, said time controlled switch being operable at will to energize said clothes dryer, and said controller being movable from its position causing continuous operation of said motor-compressor into another position, while said time controlled switch is connected to said source of electricity, to place the energization of said motor-compressor under the control of a thermostatic switch actuated in response to the temperature of said holdover medium and/or under the control of a humidistatic switch actuated in response to the moisture content of air in the room in which the combined apparatus is located.
6. In combination; a clothes dryer cabinet, a container within said cabinet for receiving dampj clothes to be dried, means for heating the damp clothes received in said container, a vapor condenser within said cabinet through which heated moist air leaving the clothes flows, a holdover medium in thermal exchange relationship with said vapor condenser, means for cooling said holdover medium to cause said vapor condenser to remove moisture from the heated moist air flowing therethrough prior to its egress from' said cabinet, said cooling means including a refrigerant evaporating portion of a closed refrigerating system within said cabinet, said refrigerating system including another refrigerant evaporating portion isolated from the holdover medium cooling portion thereof, a refrigerant condensing portion and an air circulating means, said air circulating means being adapted to draw air into said cabinet over said another refrigerant evaporating portion and said refrigerant condensing portion of the refrigerating system and to discharge the air from said cabinet, and said another refrigerant evaporating portion and said refrigerant condensing portion of said system condensing moisture out of the air in the room in which the cabinet is located.
'7. In combination; a clothes dryer cabinet, a container within said cabinet for receiving damp clothes to be dried, means for heating the damp clothes received in said container, a vapor condenser within said cabinet through which heated moist air leaving the clothes flows, a holdover medium in thermal exchange relationship with said vapor condenser, means for cooling said holdover medium to cause said vapor condenser to remove moisture from the heated moist air flowing therethrough prior to its egress from said cabinet, said cooling means including a refrigerant evaporating portion of a closed refrigerating system within said cabinet, said refrigerating system including another refrigerant evapcrating portion isolated from the holdover medium cooling portion thereof, a refrigerant condensing portion and an air circulating means, said circulating means being adapted to draw air into said cabinet over said another refrigerant evaporating portion and said refrigerant condensing portion of the refrigerating system and to discharge the air from said cabinet, said another refrigerant evaporating portion and said refrigerant condensing portion of said system condensing clothes to be dried, means for heating the damp 1 clothes received in said container, a vapor condenser within said cabinet through which heated moist air leaving the clothes fiows, a holdover medium in thermal exchange relationship with said vapor condenser, means for cooling said.
holdover medium to cause said vapor condenser to remove moisture from the heated moist air flowing therethrough prior to its egress from said cabinet, said cooling means including a refrigerating evaporating portion of a closed refrigcrating system within said cabinet, said refrigerating system including another refrigerant evaporating portion isolated from the holdover medium cooling portion thereof and a refrigerant condensing portion with a motor-compressor,
an air circulating means, said air circulating means being adapted to draw air into said cabinet over said refrigerant condensing portion of the refrigerating system and to discharge the air from said cabinet, said refrigerant condensing portion of said system condensing moisture out of the air in the room in which said cabinet is located, a time controlled switch for energizing and deenergizing said heating means, a
8 controller for connecting said switch to a source of electricity and for simultaneously energizing and causing continuous operation of said motorcompressor and said air circulating means, and said time controlled switch being operable at will to energize said heating means.
9. In combination; a clothes dryer cabinet, a container within said cabinet for receiving damp clothes to be dried, means for heating the damp clothes received in said container, a vapor condenser within said cabinet through which heated moist air leaving the clothes flows, a holdover medium in thermal exchange relationship with said vapor condenser, means for cooling said holdover medium to cause said vapor condenser to remove moisture from the heated moist air flowing therethrough prior to its egress from said cabinet, said cooling means including a refrigerant evaporating portion of a closed refrigerating system within said cabinet, said refrigerating system including another refrigerant evaporating portion isolated from the holdover medium cooling portion thereof and a refrigerant condensing portion with a motor-compressor, an air circulating means, said air circulating means being adapted to draw air into said cabinet over said refrigerant condensing portion of the refrigerating system and to discharge the air from said c binet, said refrigerant condensing portion of said system condensing moisture out of the air in the room in which said cabinet is located, a time controlled switch for energizing and deenergizing said heating means, a controller for connecting said switch to a, source of electricity and for simultaneously energizing and causing continuous operation of said motor-compressor and said air circulating means, said time controlled switch being operable at will to energize said heating means, and said controller being movable from its position causing continuous energization and operation of said motor-compressor and said air circulating means into another position, while said time controlled switch is connected to said source of electricity, to place the energisation of said motor-compressor and said air circulating means under the control of a thermostatic switch actuated in response to the temperature of said holdover medium and/or under the control of a humidistatic switch actuated in response to the moisture content of air in the room in which the cabinet is located.
ROBERT R. CANDOR.
REFERENCES CITED The following references are of record in the file of this patent:
UNITED STATES PATENTS Number Name Date 1,119,011 Grosvenor Dec. 1, 1914 1,837,798 Sliipley Dec. 22, 1931 2,130,892 Kettering Sept. 13, 1938 2,157,047 Zwickl May 2, 1939 2,369,985 Sherbondy Oct. 24, 1944 2,369,366 ONeil Feb. 13, 1945 2,389,433 Hough Nov. 20, 1945 2,418,239 Smith Apr. 1, 1947
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Cited By (32)

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US2859535A (en) * 1953-09-15 1958-11-11 John W Carlson Hand dryer
US3012455A (en) * 1957-06-27 1961-12-12 Paul C Kline Refrigerated hopper equipment for automatic riveting machines
US3026628A (en) * 1956-08-07 1962-03-27 Whirlpool Co Drying system for dishwashers
US3035418A (en) * 1959-04-24 1962-05-22 Francis X Wright Self-contained water-supply and cooling unit
US3064358A (en) * 1958-02-17 1962-11-20 Anthony A Giuffre Clothes drying device
US3589028A (en) * 1969-01-15 1971-06-29 Durand Machinery Inc Method and apparatus for drying waxed fruit
US4057909A (en) * 1976-02-13 1977-11-15 Raytheon Company Continuous drying hoods
US4183150A (en) * 1976-10-21 1980-01-15 Nash Robert B Electric clothes dryer heater
US4205456A (en) * 1976-04-30 1980-06-03 Westinghouse Electric Corp. Heat pump arrangement and method for material drying system
US4497182A (en) * 1982-09-27 1985-02-05 Benson Engineering & Mfg., Inc. Dehumidifier
WO1986002149A1 (en) * 1984-10-05 1986-04-10 Michael Goldberg Heat pump closed loop drying
US5074119A (en) * 1990-05-04 1991-12-24 Anderson John C Dehumidifier apparatus with pump and method
US5430956A (en) * 1990-05-18 1995-07-11 Semtec Muller Ohg Process and device to dry laundry and the like
US5628125A (en) * 1993-07-30 1997-05-13 De' Longhi S.P.A. Device for eliminating humidity particularly from laundry
US20020100298A1 (en) * 2001-02-01 2002-08-01 Jeong In Chul Pulsator type washing machine with drying function
US20030208923A1 (en) * 2002-04-01 2003-11-13 Lewis Donald C. High temperature dehumidification drying system
US20040098878A1 (en) * 2002-11-27 2004-05-27 Park Young Hwan Clothes dryer and cooling passage structure for cooling condenser thereof
US20080216341A1 (en) * 2007-03-07 2008-09-11 Hiroshi Mukaiyama Dry air-supplying apparatus and dryer
US20090031513A1 (en) * 2006-02-17 2009-02-05 BSH Bosch und Siemens Hausgeräte GmbH Cleaning Device for a Component Within a Process Air Circuit of a Household Tumble-Dryer
US20090178442A1 (en) * 2005-11-18 2009-07-16 Shinichiro Kawabata Washing and drying machine
US20090211309A1 (en) * 2005-02-22 2009-08-27 Kabushiki Kaisha Toshiba Drum type washing-drying machine
US20100024239A1 (en) * 2005-11-25 2010-02-04 Kabushki Kaisha Toshiba Corp. Drum-type washer/dryer
US20120079735A1 (en) * 2010-09-30 2012-04-05 Hyuksoo Lee Clothes treating apparatus with heat pump system and operating method thereof
US20130047456A1 (en) * 2009-10-01 2013-02-28 Onder Balioglu Heat pump laundry dryer machine
DE102012212162A1 (en) * 2012-07-11 2014-01-16 BSH Bosch und Siemens Hausgeräte GmbH Dryer with heat pump with additional suitability for a dehumidification and process for its operation
US20140144036A1 (en) * 2012-11-28 2014-05-29 Elwha Llc Energy efficient dryer systems
US20140182705A1 (en) * 2012-11-13 2014-07-03 Plexaire Llc Condensate management system and methods
US9651308B1 (en) 2016-09-08 2017-05-16 Donald C. Lewis High temperature dehumidification drying system
US20170233941A1 (en) * 2016-02-17 2017-08-17 Lg Electronics Inc. Apparatus for treating laundry and control method thereof
US20190376723A1 (en) * 2018-06-07 2019-12-12 Johnson Controls Technology Company Condensate management systems and methods
US10793995B2 (en) * 2014-12-08 2020-10-06 Lg Electronics Inc. Condensing type clothes dryer having a heat pump cycle and a method for controlling a condensing type clothes dryer having a heat pump cycle
US20210290000A1 (en) * 2020-03-19 2021-09-23 Lg Electronics Inc. Drying apparatus and related methods

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Cited By (42)

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US2859535A (en) * 1953-09-15 1958-11-11 John W Carlson Hand dryer
US3026628A (en) * 1956-08-07 1962-03-27 Whirlpool Co Drying system for dishwashers
US3012455A (en) * 1957-06-27 1961-12-12 Paul C Kline Refrigerated hopper equipment for automatic riveting machines
US3064358A (en) * 1958-02-17 1962-11-20 Anthony A Giuffre Clothes drying device
US3035418A (en) * 1959-04-24 1962-05-22 Francis X Wright Self-contained water-supply and cooling unit
US3589028A (en) * 1969-01-15 1971-06-29 Durand Machinery Inc Method and apparatus for drying waxed fruit
US4057909A (en) * 1976-02-13 1977-11-15 Raytheon Company Continuous drying hoods
US4205456A (en) * 1976-04-30 1980-06-03 Westinghouse Electric Corp. Heat pump arrangement and method for material drying system
US4183150A (en) * 1976-10-21 1980-01-15 Nash Robert B Electric clothes dryer heater
US4497182A (en) * 1982-09-27 1985-02-05 Benson Engineering & Mfg., Inc. Dehumidifier
WO1986002149A1 (en) * 1984-10-05 1986-04-10 Michael Goldberg Heat pump closed loop drying
US4603489A (en) * 1984-10-05 1986-08-05 Michael Goldberg Heat pump closed loop drying
US5074119A (en) * 1990-05-04 1991-12-24 Anderson John C Dehumidifier apparatus with pump and method
US5430956A (en) * 1990-05-18 1995-07-11 Semtec Muller Ohg Process and device to dry laundry and the like
US5628125A (en) * 1993-07-30 1997-05-13 De' Longhi S.P.A. Device for eliminating humidity particularly from laundry
US20020100298A1 (en) * 2001-02-01 2002-08-01 Jeong In Chul Pulsator type washing machine with drying function
US7415848B2 (en) * 2001-02-01 2008-08-26 Lg Electronics Inc. Pulsator type washing machine with drying function
US20030208923A1 (en) * 2002-04-01 2003-11-13 Lewis Donald C. High temperature dehumidification drying system
US20040098878A1 (en) * 2002-11-27 2004-05-27 Park Young Hwan Clothes dryer and cooling passage structure for cooling condenser thereof
US8490437B2 (en) 2005-02-22 2013-07-23 Kabushiki Kaisha Toshiba Drum type washing-drying machine
US20090211309A1 (en) * 2005-02-22 2009-08-27 Kabushiki Kaisha Toshiba Drum type washing-drying machine
US8881556B2 (en) 2005-11-18 2014-11-11 Kabushiki Kaisha Toshiba Washing and drying machine
US20090178442A1 (en) * 2005-11-18 2009-07-16 Shinichiro Kawabata Washing and drying machine
US20100024239A1 (en) * 2005-11-25 2010-02-04 Kabushki Kaisha Toshiba Corp. Drum-type washer/dryer
US8112904B2 (en) * 2005-11-25 2012-02-14 Kabushiki Kaisha Toshiba Drum-type washer/dryer
US20090031513A1 (en) * 2006-02-17 2009-02-05 BSH Bosch und Siemens Hausgeräte GmbH Cleaning Device for a Component Within a Process Air Circuit of a Household Tumble-Dryer
US8266815B2 (en) * 2006-02-17 2012-09-18 Bsh Bosch Und Siemens Hausgeraete Gmbh Cleaning device for a component within a process air circuit of a household tumble-dryer
US20080216341A1 (en) * 2007-03-07 2008-09-11 Hiroshi Mukaiyama Dry air-supplying apparatus and dryer
US20130047456A1 (en) * 2009-10-01 2013-02-28 Onder Balioglu Heat pump laundry dryer machine
US20120079735A1 (en) * 2010-09-30 2012-04-05 Hyuksoo Lee Clothes treating apparatus with heat pump system and operating method thereof
US8595954B2 (en) * 2010-09-30 2013-12-03 Lg Electronics Inc. Clothes treating apparatus with heat pump system and operating method thereof
DE102012212162A1 (en) * 2012-07-11 2014-01-16 BSH Bosch und Siemens Hausgeräte GmbH Dryer with heat pump with additional suitability for a dehumidification and process for its operation
US20140182705A1 (en) * 2012-11-13 2014-07-03 Plexaire Llc Condensate management system and methods
US9091015B2 (en) * 2012-11-28 2015-07-28 Elwha Llc Energy efficient dryer systems
US20140144036A1 (en) * 2012-11-28 2014-05-29 Elwha Llc Energy efficient dryer systems
US9422662B2 (en) 2012-11-28 2016-08-23 Elwha Llc Energy efficient dryer systems
US10793995B2 (en) * 2014-12-08 2020-10-06 Lg Electronics Inc. Condensing type clothes dryer having a heat pump cycle and a method for controlling a condensing type clothes dryer having a heat pump cycle
US20170233941A1 (en) * 2016-02-17 2017-08-17 Lg Electronics Inc. Apparatus for treating laundry and control method thereof
US10138589B2 (en) * 2016-02-17 2018-11-27 Lg Electronics Inc. Apparatus for treating laundry and control method thereof
US9651308B1 (en) 2016-09-08 2017-05-16 Donald C. Lewis High temperature dehumidification drying system
US20190376723A1 (en) * 2018-06-07 2019-12-12 Johnson Controls Technology Company Condensate management systems and methods
US20210290000A1 (en) * 2020-03-19 2021-09-23 Lg Electronics Inc. Drying apparatus and related methods

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