US1764723A

US1764723A - Refrigerating show case

Info

Publication number: US1764723A
Application number: US257245A
Authority: US
Inventors: Albert A Hoppenrath
Original assignee: Individual
Current assignee: Individual
Priority date: 1928-02-27
Filing date: 1928-02-27
Publication date: 1930-06-17
Anticipated expiration: 1947-06-17

Description

June 17, 1930. A. A. HOPPENRATH REFRIGERATING SHOW CASE Filed Feb. 27. 1928 v I n ven for;

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Patented June 17, 1930 UNITED s'm'ras ALBERT A. HOPPENRATH OF MINNEAPOLIS, MINNESOTA REFRIGERATING SHOW CASE Application filed February 27, 1928.

My invention relates to refrigerating showcases and particularly to show cases intended for receiving food products. An object of the invention is to provide a device of this character having a casing provided with a shelf which divides the interior of the casing into upper and lower compartments in combination with a refrigerant receiver so constructed and arranged that currents of cold air will be caused to pass directly therefrom into both the lower and upper compartments.

The full objects and advantages of my invention will appear in connection with the detailed description thereof and the novel features of my inventive idea will be particularly pointed out in the claim.

In the accompanying drawings which illustrate the operation of my invention,-

Fig. 1 is a view of the device in cross section. Fig. 2 is a view in section on the line 22 of Fig. 1.

The walls of the show case designated in general by the numeral 10 are of wood and these walls as well as a lid 12 for a refrigerant compartment and doors 14 for the lower compartment are lined with heat insulating material 16 such as cork. The top portion of the casing is doubly inclined as is customary and is provided at the front with sight windows 18 and at the rear with sliding glass doors 20 which give access to the upper c0m-' partment 22. The doors 14 give access to the lower compartment indicated at 24. Transverse strips 26 located about midway between I the top and bottom of the casing serve to support slats 28 which constitute an openwork bottom for the refrigerant receiver. A drip pan or trough 30 is supported below the slats 28 in spaced relation thereto. Inclined

strips

32 and 34 serve to direct the drip into the pan or trough 30. The strip 32 is so positioned that a restricted passage P is provided between its lower end and the inner wall of the pan 30. The inner wall of the refrigerant receiver is produced by a longitudinal board Serial No. 257,245.

36 which stops short of the upper end of the refrigerant compartment so as to leave a passage P of considerable width. An in clined board 38extends between the bottom of the board 36 and the bottom of a longitudinal strip 40, the latter being spaced inwardly from the front wall of the casing so as to leave a passageway P. Insulating material 42 such as cork is placed above the board 38. Upon the upper surface of the material 42 there is a piece of white opalite 44 which together with the material 42 constitutes an in-1 clined shelf for the upper compartment.

The operation and advantages of my invention will now be obvious. Cold air from the ice compartment orrefrigerant receiver tends to flow downwardly and circulate in the direction of the arrows A, but the restricted passageway P is not large enough to carry all of the cold air so that some of it passes in the direction of the arrows A through the passages P P and accumulates in the lower food compartment 24. The current of cold air indicated by the arrows A passes directly over the inclined shelf 44 which constitutes a place for receiving food material in the lower portion of the upper or display compartment 22. The result is that the food material on this shelf as well as the food material in the lower compartment 24 will be kept at a very low temperature.

I claim:

A refrigerating show case comprising a casing, a shelf in said casing dividing the interior thereof into upper and lower compartments, the front edge of said shelf being spaced from the front wall of said casing to provide a passageway between said upper and lower compartments, a refrigerant receiving chamber, an openwork bottom for said chamber which is substantially in horizontal alinement With the rear of said shelf, and a drip pan supported toward the top of said lowercompartment at such distance below said openwork bottom as to provide a restricted passageway between the bottom of said refrigerant chamber and the top of said lower compartment, the inner wall of said refrigerant chamber stopping short of the top of the casing to provide a comparatively large passageway whereby a portion of the cold air from said refrigerant chamber passes therethrough into said upper chamber while the remainder of the cold air from said refrigerant chamber passes through said restricted passageway into said lower compartment.

In testimony'whereof I hereunto afiix: my signature.

ALBERT A. HOP'PENRATH.