US2637178A - Refrigerated storage, dispensing, and display cabinet - Google Patents

Description

5 Sheets-Sheet l .QN oooooooooo ooooooomwmommmo Eg gggag G gsgzg g 0O OOOOOOOOOOOOOOOOOQGO O J. A. GALAZZI ET AL REFRIGERATED STORAGE, DISPENSING, AND DISPLAY CABINETS May 5, 1953 Filed March 17, 1949 m z: z 3 my Z 5. Q I. u

In J05 e gayne y 1953 J. A. GALAZZI ETAL 2,637,178

REFRIGERAIED STORAGE, DISPENSING, AND DISPLAY CABINETS Filed March 17, 1949 5 Sheets-Sheet 2 5 Jase 1%.}. dalazzz I May? fl- .farda i? Pa! 2 Dan fiizet Jifazveeys.

May 5, 1953 J. A. GALAZZI ETAL REFRIGERATED STORAGE, DISPENSING, AND DISPLAY CABINETS Filed March 17. 1949 5 Sheets-Sheet 3 2 iza'erzzans Jase 112.14 aiazzz 1049712 .3. 76 7 .PaaZfl flair WZzeZ 5y F0419 F Q/ZQH flitarieego May 5, 1953 J. A. GALAZZI ETAL 2&37378 REFRIGERATED STORAGE, DISPENSING, AND DISPLAY CABINETS Filed March 17. 1949 5 Sheets-Sheet 4 Jflornqys J A. GALAZZI ET AL STORAGE, DISPENSING, AND DISPLAY CABINETS 5 Sheets-Sheet 5 May 5, 1953 REFRIGERATED Filed March 1'7, 1949 Patented May 5, 1953 REFRIGERATED STORAGE. DISPENSING,

ANDDISPLAY CABINET Joseph A. Galazzi, Morrison, Wayne D. Jordan,

I Chicago, and Paul D. Van Vliet, River'Forest, 111., assignors to Liquid Carbonic Corporation, Chicago, 111,, a corporation of Delaware Application March 17, 1949, Seria1No. 81,976

13 claims. (o1. 62117.4)

invention relates to improvements in refrigerated storage, dispensing and display jcabinets of the type commonly used for ice cream,

I frozen foods, bottle beverages, and the like,{ and havinga flat working top pierced by one or more holes giving access to the refrigerated storage One object is toprovide an'improved construction whereby the insulant packed space between the outer shell and the sleeves is better sealed against vaporentry fromoutside or from; the

sleeve. 1

"Another purpose; is to provide 4 an improved means of locking the condensing unit in working position for safety when the cabinet is moved, and alsowith-an avoidance'of rattle. Another purpose is to provide an'improvedand simplified condensing means. whereby service calls areminimized. Another purpose is to utilize convection to cause air movement through the refrigerant condenser,

thus eliminating the customary fan and motor Another purpose is to provide a vertical dut inside the cabinet walls with an outlet in the top working surface, to increase the head for maximumairflow through the oondensen Anotherpurpose is to provide two or more finned condenser units within theduct, So disposed as to makeeflicient use of the. necessarily restricted duct area. 7 I f Another. purpose is to provide adequate-protection of the duct outlet in the top working surface from the entry of water or dirt, without'reducing air flow upwardly through the duct. Another purpose is to prevent unintended closure of the air duct outlet by towels or goods placed over the duct opening in the top working surface. I r V 1 Another purpose is to permit the retention of the full top area as working space.

Other purposes will appear from'time to time in the course of the specification and claims.

The invention is illustrated more or less diagrammatically in the accompanying drawings, wherein: 2 Fig. 1 isa side elevation illustrating opposite endsof the device; 1 Fig. 2 is a section on the line 22 ofFi'g. 1; Fig.3 is a section on an enlarged scale on the line 3-3 of Fig.- 1;

Fig. 4 is a section on the line 4--4 of Fig.3 with the liner and cover omitted;

Fig. 5 is a section on the line 5--5 of Fig; 2;

Fig. 6 is a partial section illustrating a variant arrangement of the condenser coils in the verticalair duct of Fig. 5;

Fig. 7 is a section on the line 1-1 of :Fig'. and

Fig. 8 isa schematic cycle diagram. I

Like parts I are indicated by like symbols throughout the specification and drawings. Referring to the drawingsand,-for-example, to Fig. 3, l is the outer steel cabinet shell-formed to provide a fiat top surface la around all sidesoi the cabinet. This flat top will be evidenced; for example, in Fig. 4. 2 is the steel sleeve Orson tainer in which goods are stored. 3' is a wood member acting as a mechanical support between the shell I and the sleeve 2, with low heat-con-j ducting characteristics. 4 is a thin strip of fibre or similar low heat-conducting material. 5 and 6 are screws and, in Fig. 4, l is a nail which holds the members I, 2, 3 and 4 rigidly together. It will be understood that this construction is carried around all four sides-of the cabinet, and be-' tweenthe sleeves 2, ofwhich there maybe two or more. To seal-against vapor, it advan tageousto pour hot tan 8 in-the recess'above-the wood member 3, and additional hot tar 9 in the recess at the-bottomof the-' wood Irie'mber- 3}. When completed, the top flange ofthefshell li the top of the fibre strip 4, and the top of the poured tar 8 are all at the same leveLprotiding a flat surface to support the capping I I, which is shown in Fig; 3. v

The above described structure provides not only a positive vapor" seal between sleeve and shell, but simplifies the structure materially, in that no separate steel subtop is required. The subtop is replaced by folding over the shell wall I', as at la, to form a fiat top surface up to the wood surrounding the openings in which the sleevesz are positioned. l

The construction is completed by applying a stainless steel top I l, asshown in Fig. 3, but omit ted from 'Fig. 4, with edges around eachhole turned up atapproximately 45, as shown at i la in Fig. 3. I2 is a rubber breaker strip, reinforced by a'metal strip !3 which is vulcanized to the rubber .and has a downwardly and outwardly press-ed down and the screws K5 are sunk or tightened while the pressure continues.

Since it is necessary to screw the stainless top H to the shell at close intervals,and since the screws used, ll, may become loose .or be. st,,it

is found advantageous to apply cups i8 atall I screw-fastening points, the cups being welded to the inside of the shell l and being sealed around their edges with hot: tar l9. Thus, when" the cover or capping i I is applied, and the screws I! inserted, the vapor seal remains unbroken.

A condensing unit is illustrated, which is shown as including a refrigerant pump or compressor P, a motor and relay, not shown, the condensing unit being mounted on a steel base 20, as shown, for example, in Figs. 2, 5 and 7.--'I-he base-2-0- is flanged on four sides, asat, 200; and rests upon suitable side rails 28. I

For ease of servicing the condensing unit, the

pump, motor and starting relay may all be] mounted on the steel base or pan which-may be pulled forward from'operating position, along the rails 28, or which may be locked tightly to, prevent vibration or shifting when the cabinet is moved to another location. In conventional units, the customary hold-down bolts areoften left out after servicing, with" resultant vibration or damage if the cabinet isrnoved. In the pres-- ent structure, the locking is automatic and-a mechanic cannot apply the protecting grille 35 without operating the locking means. Referring to Figs.- 2, 5 and '7, the-condensing unit pan rests on the tracks or sideangle supports 28 which are welded to the steel cabinet base 21 at front and back. A downward projection 29 is formed in the pan 2t, half-way back-on each side. Stops are fastened to the side upports or tracks 28at the rear of the pan 20, and limit both backward and upward move-- ment of the rear'of the pan 29. Any downward pressure on the front edge of the pan 29, as will be clear from Fig. '7, will than look the pan 2,0 tight to the supporting angles or tracks 28, with predetermined pressure points at the fr.ont,'on

- the side projections 'ZSpand at: the back under the stops 30.

,A U-shaped bracket 2! is shown. as welded to the front flange of the-pan 2D. I A handle '22- is mounted between the ears of the bracket Zl'by shoulder rivets 23 so that the handle 22 "maybe freely swung. A rod 24 is staked into the handle, carrying a tube 25, free to move on the rod, and a strap member 26 is welded to the tube'25 and is formed into a hook 250: at its lower edge or end. This structure will be clear, for example, from Fig. 7. The cabinet'base 21 has its upper flange cut away as'at 21a in Fig. 5, to permit the hooked member 28 to swing downward, and to permit the hooked end of the lug 3! to extend through the notchZla to the outside, for" eragagement with the hook 26a of the member 26; The lug 3! is shown as fastenedtothe base by screws 3m, and is adjustable in height.

In Fig. '7, the base 20 is shown as pushed into operatin position, ready for locking. The handle 4 is shown in dotted line in the unlocked position, and is shown in full line in the locking position. By lifting the handle 22 from the dotted line to the full line position of Fig. 7, the hook 26a engages with the hook of the lug 3|, exerting downward pressure on the pan 20 and locking it into position. At the center of the bracket 2|, an upward extension 32 is bent forward to act as a stop to limit the movement of the handle 22. In the full line position of Fig. '7, with the hooked member 526 in ,thefllockirigi position and also against the-:stop 32, the system 'is locked, as the center of the rod 2 1 has passed a straight I line drawn throughthe center of rotation of the handle ZZHand theengaging point of the hooks f...the, members 26 and 3!.

when the handle 22 is pushed as far as the stop In other words,

,32 will permit, the rod 24 has been moved over center and then-parts are automatically held in "locked position;

-Should a serviceman fail to move the handl'e 22 to the upright position and thus lockthe base 2t in position, the handle 22 would project forward in a position to prevent the application of the air inlet grille 35, shown in Figure 1.

This construction.provideseasy access to. -the condensing unit,.makes it certain that theservicer. man will lock the pan securely tcthe supports before leaving, insures. freedom. from ..vibratio'n between pan. and supports,....;and., accomplishes these purposes whileu'ing no lose'ijpa'rts that form three walls of the chimney vorduct, orfa condenser may beplacednearthe. floor within the pump-motor compartment with-an outlet. to

-. the chimney-.- 'Iheseare current practices. ;.In

considering the usual cabinet of the type d8: scribed, with-its33" to 36" overall height, and the increased heat. to be dissipated, the prcblem is more difficult. The cabinet is alsoireguently placed against a wall-and between other equipment, so that airentry=--to andexit from the cabinet are-.lim-itedto its-front and top.

"In the present invention, a-duct is formed within the cabinet walls,qfor'example, at one end, rising from the ceiling of the pump-motor compartment, and with an :air outlet through the top. Within the limitations of a maximum 6" width of: duct permitted by cabinet size 'standarcliza tion in the ice creamfcabin'et field, the length of'duct limited bythefrorit to rear dimension of the standard cabinet, and with height also limited, and'with the requirement of 72 to square feet of condenser surface to be located within'the duct and-with fins widely spaced to cut down convection'head 'loss, it has, nevertheless,-been' possible to develop a design that equals in performance the conventional condensermotor fan-system, with alltheadvantages of the domestic refrigerator with static condenser and tall chimney. i

'In the system, as" shown in Fig.6; the cabinet shell I in the zone of the condensing unit com-'- partrnent exte'ndsxdownwardly to the ceilingof the pump-motorcompartment 3c, and theceiling and end wall 34 define the pump-motor can wardly towiardor into the pump-motor compartment are two condensersa3l, their upper edgestouching, as at 31c, and their lower edges separated, as'at 31b. Any suitablesupport means,

not shown detail, are providedat the ftop of the duct,.as iat 31c, and at the ceiling height-of the pump-motor compartment, as at 31d,.where-' bythe condenser may be properly held in posi-' tion.: It wi l be understood that. the front to back lwi'dthflof the condenser and return tube Mbends is slightly. less. .than the front to*"ba'ck dimension .of .the .duct; opening 38, permitting readyremoval from above This is clear from Fig.2. I .r' j. .Airenters"between the condensers at the bottom, as'iatx3lb, and through the V-shaped open ings at. front .and back within the pump-motor compartment'and passes upwardly and outwardly through .theeiins to the exitbpening at the top;

With the fins, spaced roughly two and one-half .to the inch, the top opening isnot noticeably restricted by.thepresence of the condensers within the opening? 'l-Ieated air from the pump-motor compartment 35 is free to enter the duct throu h the adjacent condenser face, or may bypass the condenser. 3.1,:Iif the left condenser is "spaced slightly awayrfromthe duct wall s'othat air from the pump. may enter the duct directly. ,I'hexwefrigerant circuit .is diagrammatically shown in "Fig2' 8. It will be .understood'that hot compressed refrigerant leaves the pump P, passes upwardly through the firstcondenser 31, downwardly through the second condenser 31, through a sreceiver 35;"as a liquid, has its pressure and temperature reduced in a tubular restrictor 40, thenenters the sleeve evaporator M, where .it evaporates. It then passes through an accumu later-drier 4,2. which trapsany slugs of liquid to the pump'B through the tube 43. v ,EIlie exit air opening 38 from the duct Bllmust berclosed against the entry of water or dirt, but in such a manner as not to restrict air-flow. The closure or top. must be so constructed as to prevent b1O0kl1'lg l0f the air exitl However, if" a grille is used, it'represents a loss-of top working area. In order. to meet the above conditions and restrictions, the closure is designed as below described. xyThe exit grille is shown as in the form of a box with open bottom, generally indicated as 10, hav; ing a fiat top?" and downwardly curved ends 12, of solid. metal, and sides 13' of perforated metal. This'structure, illustrated in Figs. 2,5 and 6, fits over the duct opening 38 and is fa s tened in placeby any suitable securing means. not shown inrdetail. The flange Hc around the holes, in the capping ll lies within the grille refrigerant, and the refrigerant gas then returns structure 10,1ocatesit, and prevents water entry.

gf dishes does: not. obstruct the air flow. Water and spilled ice cream cannot enter the ductrand the appearance of the cabinet is enhanced rather than hurt by the grille. i

It will be realized that :whereas' we have de-. scribed and shown a practical and operativ'ede. vice,. nevertheless, many changes may be made in size, shape, number and disposition of parts without departing from the spirit of the invention. The description and drawings: will, therefore, be taken as in a broad sense illustrativeor diagrammatic, rather than as a limitation to th specific showing herein. For example, in Fig. 6, we illustrate an alters native arrangement of the condensers 31 in which one'is positioned above the other, and both condensers being inclined between and contacting the opposite-walls of the duct 60. It will be also understood that we may vary the size, shape and number of the sleeves to suit'the necessities of a particular installation, However it is, in any event, important to have oneof the sleeves, as shown atg2a. in Fig. 1, of substantially shortervertical depth than the'others, withits top even with the tops of the others. a The :use of this shallower sleeve provides spaceforfcthe pump-motor compartment, the relationship of the parts being clear from Fig. 5.

, It will be further understood that the space between the outer shell I and steel sleeve? is fillediwith suitable insulation 80;

We, claim: I, 1 .9

1.- In a refrigerated storage, dispensing;- or display cabinet having at least one opening in the top thereof, an external metalshell with 'a closed bottom, and; having at least one'interfial metal sleeve spaced from the shell and having a top opening,- and heat insulation between each of' the sleeves and the shell on the-:sidessand bottom, one end sleeve being shallower'thanad-i jacent sleeves, an extension of the. shell 'atthe shallow sleeverend, defining a vertical duct; -a metal capping extending over the shelland-the extension, and having a hole through the cap ping of a size slightly smaller than'and over the duct opening, a pump-motor compartment with--' in the shell and under'the shallow'sleeve and duct, having one side wall and a ceiling integral with the cabinet shell, a second sidewall in tegral with its shell extension, and-icommuni r catingwith the vertical duct, and having open-= ings through .frontandLrear of the cabinet-shell andextension walls, partially closed by grilles admitting air freely, and fin and tube condenser meansilocatedpwithin the ductand, partly ex tending downwardly into the pump-motor com partment, said condensing means comprising two unitsplaced face to face with top .-"edges touching and the bottom edges spread apart; providing free air inlet space between condensers at :the-bottom, to the entire'inner faces of both condensers and providing free exit over'the entire outer faces of both condensers 'to the duct" and the topIopening, and a metal-housing fastened over the duct opening, having :a flat top to provide. top working surface, and perforated metal side walls allowing air to move freely from duct to room. .2. In' 'azzrefrigerat'ed storage, dispensing: or display cabinet having a plurality of; top open; ings, an external metal shell with a closed bottom, and having a plurality of internal metal sleeves spaced from the shell and: having top open ngs, and heat insulation between the sleeves and the shell'on thesides and bottom, one 'end sleevebeing shallower than adjacent sleeves, an

extension of the shell atthe shallow sleeve'end; defining 'avertical duct, "a metal capping extend ing over the shell and the extension, and having a hole through the capping of 'a' size "slightly smaller than and over the duct opening, an upward turned flange around the opening, a' pump-motor compartment within the shell and under the shallow "sleeve'and duct, having one side wall and a ceiling integral with the cabinet shell, '21. second side wall integral with its shell extension,.and communicating with thesvertical duct, and having openings through the front and rear of the cabinet shell and the extension Wall's, partially-closed by grilles admitting air freely, and fin and tube :condenser means located having a flat top to provide top working'surface,

and perforated metal sidewalls allowing air-"to move freely from duct to room, said housing extending outside the upward turned flanges of the metal capping. l 11-13: In a refrigerated storage, dispensing and display cabinet having a plurality oftop openings, an external metal shell aj'iclosed' bottomfland having a plurality-of internal metal sleeves spaced from the shell and having top openings,-andheat insulation between-the sleeves and the shell on the sides "and "bottom"; one'end sleeve dieing shallower than adjacent sleeves," an extension of the shell at the shallow sleeve'en'd; defining avertical duct, a metal. capping "ex-'- tending over the shell andextension, and having ahole through the capping of a size slightlysmaller thanand over the duct "opening, and an upward turned 'fiange'around the opening; 8.3131111136110130? compartmentjwithin the shell and under theshallow sleeveran'd-cluct, having one side wall and a ceiling integral with the cabinet shell; a second side wall integral with itsshell extension, and communicating with the vertical duct, rand having openings through the r front and rear of the cabinet shell and the-:extensiori walls,- --partially closed by grilles, admittingair freely, -fin and tuloe, condenser means located within the duct and partly extending downwardly intothe pump-motor compartment,- said -con-.- densing means being placed within the duct withits top edge touchingf the duct'wa'll adjacent the shallow sleeve and the lower "edge touching the duct wall. on the opposite side, causing all air entering at the bottom to pass through-the condenser, and a metal housing iastened-a-lover 'the duct opening, having aflat top to provide top working surface, and perforated: metal 'Jside' walls allowing air to "move freely from duct to room,""said housing extending outside a the: upward turned flanges" of the metal capping. a in a refrigerated storage, dispensing or display cabinet at least 'oneopening in the-top thereof; air-external shellrwith a closed bottom. at least tone internal. sleeve .;-spaced from the shell and having top openings, and"heat"insu la-ef tionbetween" each-ofthe sleeves. and .the' (shell on: the sides and 'bottom',:one end sleeve .1 being shallowenthan adjacent sleeves,- an extension-or the shell at the shallow "sleeve end, defining a'verti'cal duct, 2. metal capping extending over wardly from the metal capping.

the shell and theextension, and having-Ira hole through the capping-"of a size slightly smaller than'iand'over the-duct opening, a pump motor compartment "within-the shelland under "the shallow ssleeveanduduct, having one side wall and-a ceiling-integral with the cabinet-shell; az-second-wside' wall integrai with-its shell-sextension. and" communicating with the vertical duct; and having openings through front and rear of the cabinet shell and. the extension walls for admitting air freely, and fin and tube condenser meanslocated within the duct and partly extending downwardly 'into the pump-motor compartment, and a housing fastened over the duct :,0i1ening.- having a' generally horizontal top to: provide top working surface, and perfo-i rated side walls" allowing-hair -.to move freely from duct to room, said housing extending ups 5. In a refrigerated storage, dispensing or'fdisplaycabinet having at least one opening-in the top-thereof, anexternal shell with a :closed bottom, and internal sleeves spacedwfrom'the' shell and having top openings, and-heat'insulation'between the sleeves and the shell on the sides and bottom, one end sleeve'being shallower 'than'iad-fjacent sleeves, an extension "of the shelf-attire shallow sleeve end, defining averticalductfla pump-motor compartment within the shell and under the shallow sleeve-and duct,*having' one side wall and a-ceiling integral with the cabinet shell, asecondside wall integral with its 'shell extension, andcommunicating with the vertical duct, and having openings through the front and rear of the cabinet shell Jand'the extension 'walls', partially closed by grilles'admittingair r-freely; and fin andtube condenser means located'with; in the duct and partly extending downwardly into the pumpemotor compartment,-anr1 a housing fastened over the duct opening, having a generally horizontal top to provide-top working surface. and perforated side walls allowing air to move freely from duct to; room. j 6. arefrigerated-cabinethaving atop-open ing, an external-metalshell with a"-'closed' bottom and lhavingat least one internal-:- metal sleeve spaced from the shell,- said sleeve having .a top opening, =heat insulation between" the shell and sleeve; an extensionof the shell at one end'o'f the cabinet defining a-vert-ical ductfisaid shell providing .in -the lower portion 101" the cabinet a pumpmotorr.compartment communicating with said -.duct, :said shel rbeing provided :with grills aligned with said compartment for. admitting" air thereto --f reely, and fin and tube-condenser means located within said vertical-duct, andza' metal housing extending overthe: duct and having" perforatedside walls allowing air-to move 'freely outwardly f-rom'said duct, a pump and motor drive therefor mounted in said compartment, said pump being connected to said condenser means adjacent the lowermost portion thereof, whereby the vcooled fluids are "taken from the uppermost Portia? of said-condenser means."

7. 'In a refrigerated cabinet having a top'o'p .ing, ashell-vproviding sidewalls for'the cabinet and; with one side wall provided with an opening, a removable panel; closing said op'eningf slide i s hiasaid cabinet-aligned with saidpanl;

a metal pan mounted on said slide rails and adaptedrto support .aepump and inotor thereon, "clamping meanssecured to said'pan and engageable ,with aportion ofsaid shell for anchoring said pan therein, and a pivoted handle member associated with saidclamping means for releasing said clamping means when the handle is -draiwn.forwardlywand for engaging said clamping means when th .handleis moved upwardly, said panel, when in position, lying in the path of said pivotally-mounted handle to prevent the un- 'cIainping. of said pan.- I a .i I l l 8.. .Ina refrigerated cabinet having a top opening, a shell providing side walls for the cabinet and with one side wall provided with an opening, a removable panel closing said opening, slide rails within said cabinet aligned with said panel, a metal pan mounted on said slide rails and adapted to support a pump and motor thereon, clamping means secured to said pan and engageable with a portion of said shell for anchoring said pan therein, and a pivoted handle member associated with said clamping means for releasing said clamping means when the handle is drawn forwardly and for engaging said clamping means when the handle is moved upwardly, said panel, when in position, lying in the path of said pivotally-mounted handle to prevent the unclam'ping of said pan, said clamping means comprising a U-shaped bracket fastened to the front flange of the pan, having two aligned bearing holes in its legs, and said handle being U-shaped and having flattened ends with holes therein corresponding to the bracket bearing holes, fastening means adapted to attach the handle to the bracket, while permitting free rotation of the handle, and an additional hole in each handle end spaced from the first holes, a rod spanning the handle ends and staked into the bracket holes, a tube surrounding the rod, free to rotate, a strap having one end fastened to the tube and having a hook on the other end, a lug adjustably fastened to the base having a hook on its upper end, said hook in the lug engaging with the hook in the shell strap when the handle is in normal upright closed position, and said hook in the handle being disengaged from the hook in the strap.

9. In a refrigerated storage cabinet having a top opening, a cabinet frame providing bottom and side walls, one of the side walls being provided with a grill-equipped opening, slide rails in the bottom portion of said cabinet, a support for a pump and motor slideably mounted on said rails, a, handle pivotally mounted on said slideable support, a clamp eccentrically mounted on said handle and engageable with a hook carried by the lower portion of said frame, whereby when said handle is raised to vertical position, said clamp engages said hook and locks said support rigidly against movement, said grill being removable and when closing said opening, serving to prevent forward movement of said handle to unlocking position, said handle being swingable forwardly, when said grill is removed, to release said clamp from said hook and preventing the insertion of said panel into place to close said opening until said handle is swung again to vertical locking position.

10. In a refrigerated cabinet providing a refrigerated compartment with an access opening in the top thereof, said cabinet having an opentopped vertical duct at one end and a pumpmotor compartment in the lower portion thereof communicating with said duct, said cabinet 'being' provided with openings adjacent the lower end of said duct and communicating therewith for admitting air to the duct, a pair of finequipped condensers mounted in said duct in substantially spaced relation and being inclined so as to substantially fill said duct, said condensers being connected in series, and a pump and motor in said compartment, said pump being connected to one of said condensers adjacentthe bottom of said duct.

11. In a refrigerated cabinet providing a refrigerated compartment with an access opening in the top thereof, said cabinet having an opentopped vertical duct at one end' and a pumpmotor compartment in the lower portion thereof communicating with said duct, said cabinet being provided with openings adjacent said compartment and the lower end of said duct and communicating therewith, a compressor and a driving motor therefor in said compartment and. a pair of fin-equipped condensers spaced apart at one end and touching at the other end to form an inverted V-shape and being mounted in said duct, said compressor being connected by a conduit to one of said condensers adjacent the lower portion thereof, said condensers being interconnected at the upper ends thereof, whereby the hot compressed fluids from said compressor are fed into one of said condensers at the bottom and the cooled fluids are removed from the other of said condensers at the bottom thereof.

12. In a refrigerated cabinet providing a refrigerated compartment with an access opening in the top thereof, said cabinet having an opentopped vertical duct at one end and a pumpmotor compartment in the lower portion thereof communicating with said duct, said cabinet being provided with openings adjacent said compartment and the lower end of said duct and communicating therewith for admitting air to the compartment and duct, a compressor and a motor drive therefor mounted in said compartment, a pair of fin-equipped condensers mounted in said duct in spaced-apart and substantially parallel relation and being inclined to substantially fill said duct, said condensers being mounted in said duct so that a portion of one of the condensers extends above the uppermost point of the other condenser, said condensers also being connected in series and the lowermost point on the bottom condenser being connected with said compressor, whereby the hot compressed fiuids from said condenser are fed into the lowermost point of said condensers while the cooled fluids are withdrawn at the uppermost point of said condensers.

13. In a refrigerated cabinet having an external shell and a plurality of internal sleeves each having an access opening in the top thereof and being spaced from said shell by insulation, said shell being extended at one end of the cabinet to provide an open-topped vertical duct, the sleeve adjacent said duct being shorter than the others to provide a pump-motor compartment therebelow communicating with said duct, a pump and a motor drive therefor mounted within said compartment, said shell being equipped with openings adjacent said compartment and the bottom portion of said duct and communicating therewith to provide openings for the free passage of air into said compartment and said duct, a pair of series connected condensers mounted in said duct and being inclined with respect to the walls thereof to substantially fill said 11 duct, the lowermost portion of one of said condensers being coupled with said pump for receiving the hot fluids therefrom.

JOSEPH A. GALAZZI,

WAYNE D. JORDAN.

PAUL D. VAN VLIE'I.

References Cited in the file of this patent UNITED STATES PATENTS Number Name Date .Re. 19,964 Scherer May'19, 1936 696,648 Lambert Apr. 1, 1902 Munters Nov. 20, 1928 Number

Images