US1777786A

US1777786A - Refrigerator cabinet

Info

Publication number: US1777786A
Application number: US142296A
Authority: US
Inventors: Lloyd G Copeman
Original assignee: Copeman Laboratories Co
Current assignee: Copeman Laboratories Co
Priority date: 1926-10-18
Filing date: 1926-10-18
Publication date: 1930-10-07
Anticipated expiration: 1947-10-07

Description

REFRIG'ERATOR CA`B INET Filed oct. 18. 192e 2 sheets-sneer 1 v INVENTOR.

.L/qyd Cope/nan.

oct. 7. 193.0.V i LjG. COPEMAN`- '1,777,186

` REFRIGERATQR CABINET Filed Oct. 18 1926 2 Sheets-Sheet 2 BY y ` ATTORNEY= This invention relates to a refrigerator' Patentedv Oct. 7, 1930.

m1-ED STATES PATENT orr-'irgsilf LLUYD G. COPEMAN, F FLINT, MICHIGAN, ASBIGNOR TOCOPEMAN .'LAIBOVRA'IORI ES COMPANY, 0F FLINT, MICHIGAN, A COMORATION OF MICHIGAN BEFRIGERATOR QABINET Application ledvoctobet 18, V1926. Serial No.1. 142,298.

cabinet and pertains articula-rly to cabinets of the larger typeA suc as ice cream cabinets,y

containing a plurality of units. y t

Heretoforein the manufacture of lice .cream cabinets, or similar structures, utiliz- 4 ing mechanical `refrigeration, it has been thel practice to construct the main cooling heat absorptioirfand cooling unit of the cabinet of a suitable container which has been filled with brineor` other non-freezing solution, and in which is positionedsuitable expansionv coils for effecting of the brine. This method of cooling cabinets of this type has been objectionable, nOt only because of its low eficiency, but also because ofthe expensive construction, the replacing vof thev i brine and the-liability ofthe brine seepng andv eating through the joints of thecontainer shell. Another great disadvantage of this type of cabinet, and the disadvantage which is the particular object of this inven- `,tion to overcome, is'the large amount of space and theweight which is necessarily incident to such construction.

Itfis the primary object 'of this invention 4to provide a refrigerating cabinet of the type adapted to utilize mechanical refrigeration which entirely does away with thel use of brine or other non-freezing or holdover mediums, and which at the same .time presents a cabinet which is relatively light as well as extremely compact.

.. Another object vof the present invention is the provision 'of a refrigel'ating cabinet, the main part of which includes the cabinet and insulating structure which is designed to lbe manufactured and shipped as a separate article .y to the consumer, the said cabinet being fitted and completely equipped ready to be connected lto the refrigerating apparatus, but'minus the means which I utilize for .taking the place of the brine container. By this structure I have made it possible to completely build and ship an ice cream cabinet, orthe like, which is extremely light and compact, direct to the user. After this cabinet has been received by `the user2 the conducting and holdover members'which form a part 0f `this invention net. f

Fig. 2 is a vertical sectional view taken online '2-2 of Fig. 1 and illustratin `the place. 4 i y l Fig. 3 is a view similar to Fig, 2, and

`manner 'of securing the expansion co1 s in showing the coils cast in place.

Fig. 4 is a vertical sectional view thro h the completely installed cabinet showing t e.

outer-lining of the' cabinet, the insulating material, thecast embedded coils, and final. I

ly the cast stone container adapted to be inserted within the coils.- Fig. 5 is a perspective View of my'cast stone container which serves ,as a container and holdovei medium for replacing the brine. f

F1g.- 6 is a fragmentary sectional view,

partly diagrammatic, and illustrating the I manner of positioning and connectingV the coils of the several units, and also the manner of positioning the cast stone container and holdover within the coils. In the drawings I have shown an embodiment of my invention as comprising a stand@ ard ice cream cabinet. .The construction .Of this cabinet and the overfall size will be determined by the amount of insulation de.- sired, and as shown in Fig. 1, this. insulation may comprise a main ,body of corkkor s imilai` material l, It will be obvious therefore, at a first glance, that this cabinet need only be very small in size, as the thickness of the insulation determines the width and length of the cabinets in addition. to the diameter of the ice cream containers. This cork lining, i

or body ofthe Ycabinet is provided with a plu ed type system, and if desired, the refrigererties.

ation may be accomplished in .part by the use of brine coils which ma be spaced -alternately with the refrigerating coils, as disclosed in m copending ap lication No. 86,719, filed eb. 8, 1926. In t e drawings I have shown direct expansion coils which may be designated 4. The coils of each unit are Ppositioned, as shown in Figs. 1 and 2, and

may be connected together as shown. I preferably secure these'coils in place by inserting a suitable core 5, as shown in Fig. 2, within the apertures 2 formed by the cork insulation, and then pouring a suitable binding material which is preferably an Oxy-chloride cement in order to bind and secure the coils in position. This cement preferabl enters the pores and interstices of the cor and thus securely binds the coils in position,

The core 5 may then be withdrawn to present an ice cream cabinet of the mechanical refrigeration type Vready for shippin After the cabinet has been shippecgl to the user, a suitable container, which may be designated 6, and which is illustrated in Fig. 5, ma, be shipped to the user, or may be manu actured at the place of installation, and this container is preferably formed of an Oxy-chloride cement which may be made up of a mixture of magnesium oxide and ine silica, or sand, to which ma be added enough magnesium chloride in so ution whereby to make a mixture that may be easily poured. This' container 6 may be manufactured in' suitable moulds, as will be obvious 'to those skilled in the art, and preferably of a size to snugly fit within the apertures formed by the embedded coils 4, as best shown in Fig. 4. The cast stone or otherbinding material for holding the coils 4 in place is preferably ust sufficient to cover the coils, or

even etter, it is just sufiicient to connect the coils, and may leave the coils partly exposed at their inner surface. The cast stone container and holdover 6 will then, when inserted in the cabinet, either contact with the coils 4, or the binding material covering the same and will serve as an excellent conductor for abstracting the heat from the ice cream container, and for maintaining the temperature incident to its holdover prop- The expansion coils therefore form a. permanent part of a cabinet, are rigidly secured in place, and do not add materially to the Weight of the cabinet. The heavy Stone container 6 may be inserted at an time after the cabinet has been shipped to t e user, and it not only serves as a conductor, but also as cabinets. The coils 4-may be positioned and v connected in the usual manner, and in Fig. 6, I have shown a conventional arrangement whereby the refrigerant may beA circulated through the expansion.coils.

i ,What I claim is:

1. A brineless ice cream cabinet, or similar structure, comprising a cast stone member separate from the cabinet for receiving the container to be cooled, a linin of insulating material closely adjacent sai member and a refrigerating coil positioned in said s ace between said member and linin surroun ing the cast stone member, said coil lbeing sepa rated from,`but in heat conducting-relation to said member.

2. A brineless refrigerating cabinet comprising aremovable storage compartment of cast stone, refrigerating coils positioned in heat exchange relation to and surrounding the compartment and forming a permanent part of the cabinet, and a lining of insulating material spaced from said compartment a dis'mce substantially the diameter of said co1 l Y 3. A brineless rfrigerating cabinet comprising insulating material formed to provide one or more apertures, and refrigerating coils positioned within said aperture, or apertures, to complete the cabinet for shipping, and a separate and removable'stone storage compartment in the form of a conductor and holdover, adapted to be inserted in said a ertures and within said coils at the time o installation.`

4. A refri erating cabinet, comprising a body of insu ating material formed to provide one or more apertures, refrigerating coils positioned on the inside of said aperture, or apertures, and -secured thereto by plastically applied material, and a removable member insertable within the a rture .0r apertures at the place of instal ation and adapted to receive the container to be cooled.

5. An ice cream cabinet, or similar structure, comprising insulating material formed to present an aperture, orapertures, refrig-v erating coils positioned within the aperture, or apertures, the coils being secured to the walls of said apertures by plastically applied stone, and a separate storage container of a material serving as a holdover and adapted to be insertedl within the aperture formed by said coils.

6. An ice cream cabinet, or similar structure, com rising a relatively light cabinet built up o insulating material provided with apertures and refrigerating coils positioned Within and along the sides of said a ertures, and a cast stone storage container a apted to be inserted Within the apertures formed by said insulating material and coils at the place of installation.

lll() 7. An ice cream cabinet, or similar construction comprising a food chamber formed of solid cast stone, refrigerating coils surrounding said chamber, said cast stone chamber and coils being independent of each other and in heat conducting relation thereto, insulatin material surrounding said coils and spaced rom the chamber a distance substantially e ual to the diameter of said coils, and means or securing and positioning said coils to said insulating material.

8. An ice cream cabinet or similar structure, comprisin a cabinet having insulating material forme to provide one or more apertures, containers formed of relatively high heat conducting material positioned in said aperture or apertures and shaped to receive an ice cream can or the like, refrigerating coils positioned within the aperture or apertures kand in heat conducting relation with said containers, said coils being held in heat conducting relation with said containers by plastically applied stone allowed to harden.

9. An ice cream cabinet or similar structure, comprisin a cabinet having insulating material forme to provide one or more aper` tures, containers formed of relatively high heat conducting material positioned in said aperture or apertures and shaped to receive an ice cream can or the like, refrigerating coils positioned Within the aperture or apertures and in heat conducting relation with said containers, said coils beingheld in heat conducting relation with said containers by plastically applied stone allowed to harden, said stone serving as a hold-over for the refrigerating coils and securing said coils Within said apertures, and said contalners belng removable from the respective apertures.

In testimony whereof I aflix my signature.

LLOYD G. COPEMAN.