US1830034A

US1830034A - Refrigerating apparatus

Info

Publication number: US1830034A
Application number: US471955A
Authority: US
Inventors: Herman F Lerman
Original assignee: Frigidaire Corp
Current assignee: Frigidaire Corp
Priority date: 1930-07-31
Filing date: 1930-07-31
Publication date: 1931-11-03
Anticipated expiration: 1948-11-03

Description

Nov 3, WM H. F. LEHMAN REFRIGERATING APPARATUS 1930 2 Sheets-Sheet 2 W w mm// NM Filed July 31,

xxxxx T WW INVENTOR IZWMMFLMMAM 7. HIS

Patented Nov. a. 19 31 o s'ra'ras than smear HERMAN F. LEEMAN, 0F DAYTGN, OHIO, ASEJGR'OE T!) FRIGIDAIEE CORPQEATION, OF

DAETON, OHIO, A CORPORATION 01? REFEIGEBATIHG APPAMEU {21 Application filed July 31,

This invention relates to refrigerating apparatus and more particularly to cabinets cm loying such apparatus.

*loor space in stores equipped with refrigerated storage cabinets is very valuable and sin'ce these stores are now dispensing varione food products, some of which are required to be maintained at difierent temperatures than others, it is one of the objects of this invention to provide an improved cabinet, having compartments therein maintained at diflerent temperatures, and to con struct the cabinet so that it will occupy no more floor space-than cabinets heretofore used for the storage of products all of which were maintained at the same temperature.

Another object of the present invention is to provide an improved refrigerator cabinet, having at least two 'compartments formed therein, and to arrange in the cabinet a single evaporator extending into both compartments which will maintain each of the compartments at diiierent temperatures.

Further objects and advantages ofthe present invention will be apparent from the following description, reference being had to the accompan ing drawings, wherein a preferred form 0 embodiment of the present invention is clearly shown.

In the drawings:

Fig. 1 is a perspective view of a refrigerated ice cream storage cabinet constructed accordin to the present invention;

Fig. 2 is an enlarged top sectional view of my im roved cabinet taken along the lines lid ' cabinet generally designated at 10."

IBBGQ Serial l lo, 471,956.

of cabinet 10 and connects with

walls

17 and 18. These

walls

17, 18, and 19 provide a partition between the compartments 11 and 12 and ma be insulated. One or more cylindrical receptacles 21may vbe disposed in compartment 11 and adapted to receive storage cans of bulk ice cream. One or more receptacles 22 may be disposed in compartment 12 for receiving and storing ice cream in the form of bricks. Sealing means such ,as lids 23, which rest on the top of cabinet 10, may be employed to close the openings in the top of cabinet 10 which openings permit access to the interior of the various receptacles 21 and 22.

The insulation 16 which surrounds the

tanks

13 and 14 may comprise slabs of cork cemented to the tanks by means of an asphaltic cement. The cabinet top generally desig nated as 26 may be bolted to the lower portion of the cabinet and may comprise insulating material embedded in wood members.- A suitable outside metallic panel 27 may be placed around insulation 16 and an upper metallic cover 28 may be placed over the insulated top 26 of the cabinet. It is to be understood that the tanks, insulation, and outer metallic coverings of the cabinet are sup ported in any suitable manner by a metal frame 29 of suiiicient strength.

One side wall of tank 14 is provided with an opening 31 having a heavy metal ring 32 around the edge thereof and welded to the interior of the tank 14. This ring is adapted to receive bolts 33 which pass through a flange 34 provided on the front of the evaporator 35. The evaporator 35 includes an elongated container 36 which is disposed in compartment 12 and extends into compartment 11 through an opening 37 provided in the connecting wall 19 which forms a part of the partition between compartmentsll and-12. A sleeve 38 secured to the wall of tank: 12 may be employed to support the end of evaporator 35.

ant inlet and

outlet connections

41 and 42 for connecting the evaporator to any suitable refrigerant circulating device (not shown). The refrigerant inlet and

outlet connections

41 and 42 of the evaporator are located in a space provided by the wood frame 43 in the insulated wall of cabinet 10 and are adapted to be covered by a suitable insulation which is in turn covered by a small removable metal plate 44 which covers the opening 45 provided in the panel 27 of cabinet. I provide a plurality of fins 46 on that portion of container 36 which is disposed in the compartment 12 in order to increase the cooling surface of that portion of the evaporator so as to obtain a lower temperature in compartment 12 than is maintained in compartment .11.

In Fig. 4 I have shown a modified form of my invention wherein the tank 47 of the cabinet 10 is of one piece and a partition 48 is removably secured to the tank by U-shaped brackets 49 so as to divide the tank into compartments 11a and 12a. It is apparent from net.

the disclosure iii Fig. 4 that I have provided an ice cream cabinet which may ormay not be utilized as a two temperature cabinet. Should it be desirable to maintain the same temperature throughout the entire cabinet the partition 48 may be removed from the cabi- In order to remove the partition 48, evaporator 35 and the insulated top 26 of cabinet 10 is removed thus permiting the partition 48 to be raised upwardly and removed from the cabinet. After evaporator 35 has been again placed in the cabinet and the insulated top 26 has been placed on the cabinet it is obvious that substantially the same temperature will be maintained throughout the cabinet.

It is apparent from the foregoing description that I have provided a novel refrigerator cabinet employing a single evaporator of a refrigerating system to produce two temperatures in the cabinet for storing various food roducts such as two varieties of ice cream.

has my improved cabinet permits ice cream in the form of bricks to be stored in one compartment thereof and maintained in a solid state while at the same time permitting bulk ice cream to be stored and maintained inanother compartment of the cabinet at a substantially higher temperature in order to permit the bulk ice cream to be readily dispensed. Furthermore it is apparent that my improved arrangement provides a cabinet which will occupy no more valuable floor space than refrigerator cabinets heretofore employed in which one temperature only was maintained.

While the form of embodiment of the present invention as herein disclosed, constitutes a preferred form, it is to be understood that other forms might be adopted, all coming within the scope of the claims which follow.

What is claimed is as follows:

1. A refrigerating apparatus comprising in combination, a cabinet, an evaporator within said cabinet, said evaporator having means cooperating therewith for maintaining a substantially constant level of liquid refrigerant therein, a partition dividing said cabinet into a plurality of compartments, said partition including portions extending parallel with the end walls of said cabinet and a connecting portion extending parallel with the side walls of said cabinet, said evaporator extending through the connecting portion of said partition so as to be disposed in both of said compartments and arranged to cause the cooling effect produced thereby within one of said compartments to be greater than in the other of said compartments.

2. A refrigerating apparatus comprising in combination, a cabinet, an evaporator within said cabinet, said evaporator having means cooperating therewith for maintaining a sub stantially constant level of liquid refrigerant therein, a partition dividing said cabinet into a plurality of compartments, said partition including portions extending parallel with the end walls of said cabinet and a connecting portion extending parallel with the side walls of said cabinet,- said evaporator extending through the connecting portion of said partition so as to be disposed in both of said compartments, means cooperating with a portion of said evaporator for causing the cooling efi'ect produced by said evaporator within one of said compartments to be greater than in the other of said compartments.

3. A refrigerating apparatus comprising in combination, a cabinet, an evaporator within said cabinet, said evaporator having means cooperating therewith for maintaining a substantially constant level of liquid refrigerant therein, a partition dividing said cabinet into a plurality of compartments, said partition including portions extending parallel with the end walls of said cabinet and a connecting portion extending parallel with the side walls of said cabinet, said evaporator extending through the connecting portion of said partition so as to be disposed in both of said compartments, fins on a portion of said evaporator for causing the cooling effect produced by said evaporator within one of said compartments to be greater than in the other of said compartments.

4. A refrigerating apparatus comprising in combination, a cabinet, a partition dividing said cabinet into a plurality of compartments, said compartments being substantially filled with a non-congealable liquid, an

evaporator disposed in said non-congealable liquid and having a float valve mechanism therein for maintaining a substantially constant level of liquid refrigerant therein, said evaporator extending into both of said compartments, fins on a portion of said evaporator for causing the cooling effect produced by said evaporator within one of said compartments to begreater than in the other of said compartments.

5. A refrigerating apparatus comprising in combination, a cabinet, a partition dividing said cabinet into a plurality of compartments, said partition including portions extending parallel with the end walls of said cabinet and a connecting portion extending parallel with the side walls of said cabinet, said compartments being substantially filled with a noncongealable liquid, an evaporator disposed in said non-congealable liquid and having a float valve mechanism therein for maintaining a substantially constant level of liquid refrigerant therein, said evaporator extending through the connecting portion of said partition so as to be disposed in both of said compartments and arranged to cause the cooling efi'ect produced thereby in one of said compartments to be greater than in the other of said compartments.

6. A refrigerating apparatus comprising in combination, a cabinet, a partition dividing said cabinet into a plurality of compartments, said partition including portions extending parallel with the end walls of said cabinet and a connecting portion extending parallel with the side walls of said cabinet, said compartments being substantially filled with a noncongealable liquid, an evaporator disposed in said non-congealable liquid and having a float valve mechanism therein for maintaining a substantially constant level of liquid refrigerant therein, said evaporator extending through the connecting portion of said partition so asto be disposed in both of said compartments, means cooperating with a portion of said evaporator for causing the cooling efi'ect produced by said evaporator within one of said compartments to be greaterthan in the other of said compartments.

7. A refrigerating apparatus comprising in combination, a cabinet, a partition dividing said cabinet into a plurality of compartments, said partition including portions extending parallel with the end walls'of said cabinet and a connecting portion extending parallel with the side Walls of said cabinet, said compartments being substantially filled with a non-congealable liquid, an evaporator disposed in said non-congealable liquid and having a float valve mechanism therein for maintaining a substantially constant level of liquid refrigerant therein, said evaporator extending through the connecting portion of said partition so as to be disposed in both signature.

HERMAN F. LEHMAN.