US2333017A - Vacuum cleaner - Google Patents

Description

* OCt- 26, 14943. w. LEATHERS 2,333,017

VACUUM CLEANER original Filed oci. 17, 1959 n `forLreducingfrecirculation;Ll i

Patented Oct. 26, 1943 I i A -Wardf `Leathers;p lvlfooklyn, Y assigner to t Y l Quadrex Corporation, New York,- N. leanery 299,819;v "'Dividedr and thissapplication Novem-CFL ttf;

ber 7, 1941, Serial'No. 418,201! if: r t I i i .I n L mana lOl-23Min o ,t Y --Myiinventonpertains particularly to portable and' receives thear .at a Ypoint between the verticali-airis. canister-type `vacuum#cleaners of blades `and theV motor. By this arrangement the ltl'ie'typealso shown fin my co-pending applicamotor'is` 'keptscooL 'the .air is gotten into the tionsiforaLettershPatent, `Serial"Nos.v299,819 and fan with littleiresistance, and thexv/idest di- 209-,909. uThis-applicationisafdivision of-appli- `5 ameter fan may be`used consistent with a cationiSerial No.V 299,819,` leii` October 17; `1939, stepped-up E.1M.-\F., Lthusrobtaining a 'high-ca- -for Yerticalaxis canister typeivacuumcleaner. pacity performance' without increasing bulkand ,oirAnibjectfofmy'invention is to reduce weight weight. i t Y i i and ebulkior the machine' by "disposingtth'e motor; v-.."3Adja.cent'the' tipsoi' the fan 20 isa continu suctionfunitwithin the inneriportionof the'lter 10 ousring ofreaction or deflectorbladesZI.` These and-.alargefdiameter single stage Tfanl-imm'edi may be :provided1 ifvdesiredVin sections,' suchas -atel'ywabove ",thefilter; a further object"being shownzin lil'guie 2; and riveted to a cross plate tofzaobtain thshighest suctionvvolume ratio by 22vwhich has poripheraliopen'ings 23 for the free meanswof the `arrangement ijustmentionedtoflow of airfrom the blower to the upper portion Agetherzwithasries ofxedireactionblades clo'se- 15 offthetcleanerffroInWhiChitisiexhausted. These -ly'lrshroudingthe rtip'sofithe `blades "ofi they fan reaction bladesiare'numerous' andiclose together.

They greatly reduce `recirculation and thus great'- vv -T'Izh'ave hereinafter l'setffinth my invention lso ly"`1ncreasesuction.l1 Those vfamiliar with these those' familiar with these arts may-understand artsknow that`=when thecleaningmozzlelisltighta 1t',\andqhave appended=drawlng,-ff!vvhich: fg? 2o ly held against'anapped surface the highest'suc- "Figure f1# is a partially broken-"away and fa tion is d'esired, theV highest-beingobtained by partially cross-sectioned 'view of"` my cleaner t' the mu-ltiplestagecompressor;Y But when 'the showing motor-suctionfunitfand deector blades. IiOZZleS required tO'fdO more Open Cleaning the Figure 2 is a section of the ring of reaction plargestvolumei-is desired,fthe highest being ob- `blades Whicli'fsrruri'ds the fan ofthe motor-suc- `25 tained-*With `.Sin@iti-Stage, y"high-tiD-SpeedI `fahtion-unit. i Volume and suction being reciprocals of each A main shell I is disposed immediately above other, and eaCh being highls7 desirable on occaa, dirt-receptacle 2 which has a connection 3 for sion, the present invention Serves the important the cleaning hose. Within the main shell I purpose of providing highly desirable characteris a ltering mechanism 4 and motor-suction- 39 istics for all kinds of cleaning at the end of the unit 5. Above the shell I is a housing 6 which hOSer supports a, bail-handle 1. A 1tor shaker han- The invention is not to be limited to the exact dle 8 disposed on the side of the main shell I arrangement 0f Darts ShOWh in the aCCOmDahyis held by a horizontal hinge 9 to an internaI ing drawing or described in this Specification as bow I0, The bow is tmunnjoned to a ring e.) Various changes in the details of construction both of which are preferably made of clockmay beiresorted to without departing from the spring-strip. r spirit of the invention. While the invention has i In order to provide ample space for large-ca- I been described in connection with a portable verpacity lter in a machine of minimum bulk (and tical axis canister type VaCIlU-m-Cleaner7 it iS 0bweight) itis desirabIe to place the motor 5 with- 40 vious that the same is applicable to horizontal in thecone apex I1 and to dispose' the cenaxis type vacuum-Cleaners- ThilS, While throughtrifugal fan for the same immediately above it. out the specification and claims of this appli- For high-capacity purposes 1 prefer to use a, sincation reference has been made to a vvertical glo-stage fan 20 of generous diameter in conaxis vacuum-cleaner it is obvious that the enjunction with a series of reactionbhdos 2|, the tire unit comprising the present invention might object being that of obtaining far greater volwell be turned upon its Side S0 that theaXS 0f Aurne air-now than with the conventional multhe same extended in a horizontal direction. It

tiple stage compressors Common to presentday is Within the scope of the present invention to horizontal-axis canister-type vacuum-cleaners. S0 mOdify the unit. In order to obtain such a desirable arrange- 50 What I claim is:

ment Ihave devised means whereby the air from 1- In a VaCllUlIIl-Cleahel, a Circular fan Casing the clean side of the lilter may be passed through providing a fan Chamber `and having OPPOSed the 11101301' frame and thence into the eye of the central air inlet and outlet openings, a disc-andfan. The fan has a substantially disc-like face blade fan mounted Within the Casing fOr Totaat the outboard end of the `motor drive Shaft 55 tion about the axis of the casing, said fan in cluding a substantially hat disc having a plurality of radially extending vanes extending outwardly therefrom, said casing being formed with a wall in close proximity to the outer radial edges of the vanes and substantially coextensive `therewith, a fixed spider-like cross plate disposed in said chamber adjacent the disc and `having air passages extending therethrougnand a plurality of deilector blades in the peripheral regions of said cross plate at spaced points therearound,

said plates occupying substantially radial planes g Within the chamber and having their inner edges substantially coextensive with the outer edges of f the vanes and positioned in closeproximity thereto throughout the entire extent thereof.

edges of said blades being in close proximity to the'v sweep of the outer edges of said vanes, said 2. In a vacuum-cleaner, a circular fan casing l providing a fan chamber-having a Acentral ,air

inlet at its bottom and an air outlet at its top, l

a disc-and-blade fan mounted within the casing for rotation about a vertical axis, said'fan in-J cluding. a substantially flat dischaving 1a plurality ofV radially extending 'vvanes depending therefrom;4 said casing being provided with a downwardly sloping bottomwall nclose proxi imityA to therlower radial edgesy ofthe vanes and substantially coextensive'therewith, a fixed spider-likecross plate disposed in said chamber irnmediately above the disc and havingl air passages extending therethrough andya ring-like de-v flector blade unitsecured to said cross plate in the peripheral regions thereof, and having a plurality of deflector blades depending therefrom, said deflector blades lyingoutside the "circumy ferential sweep of said vanes and in close proximity to vthe outer edges ofthe said vanes and being. substantially radially disposed in the-,chamber.

3'. Ina vacuum-cleaner, arcircular fan casing providing a fan ,chamber vhaving a central-air inlet at its bottom and an air outlet, a vdisc-andbladefan mounted for rotation Within thecasing about a vertical axis, said-fan including fa substantially fiat disc havinga pluralityv of radially extending vanes depending therefrom, .said vanes projecting voutwardly beyond the periphery blades being relatively small and in vclose proximity to each other thus defining therebetween Aa relatively large number of small pressure chambers.

4. In a vacuum-cleaner, a circular fan casing providing a fan chamber having a central air in- -letatlts bottom and an airv outlet,A a disc-andblade fan mounted for rotation within the casing about a vertical axis, said fan including a substantially flat disc having a plurality of radially extending 'variesl dependingtherefrom, said vanes projecting outwardlyvbeyondV the periphery vof the Vdisc within the chamber, said'casing be'.-

` ing formed with a downwardly` sloping bottom .wall-in close proximity to the lower radial `edges of the vanes and substantially coextensive therewith, a fixed spider-likevcross plate disposed in said casing immediately alcoveA the disc and having air passages extending therethrough, a ringlike deflector blade unit secured to the peripheral regionsV of said cross plate, a -plurality of-outjwardly struckdeflector blades ron said unitwdepending downwardly therefrom f in:V` closeproximity to the outer edge of said disc, said blades being substantially radially disposed within the casing and having their inner edges `arranged-in close proximity lto the circumferential sweep of said blades and defining relatively smally pres- 1sure `chambers therebetween.

WAPLD TQEATHERS.' v

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