US1833929A - Refrigerating apparatus - Google Patents

Description

s. E. BICKLE I 1,833,929

REFRIGERATING APPARATUS Filed Feb. 11. 1928 gn uentoz 92;. .5 I WM,

Patented Dec. 1, 1931 3 UNITED STATES PATENT OFFICE SAMUEL E. BICKLE, OF GLOUCESTER, NEW JESEY, ASSIGNOR TO FRIGIDAIRE CORPORA- TION, OF DAYTON,

OHIO, A CORPORATION OF DELAWARE BEFRIGERATING APPARATUS Application filed February 11, 1928. Serial No. 253,767.

This invention relates to cooling units for refrigerators.

An object of this invention is to provide a cooling unit of pressed metal construction. Another object of this invention is toprovide a pressed metal member adapted to be assembled with similar members to form a cooling unit.

Another object is to provide a sectional cooling unit for refrigerators adapted to be dipped in molten solder to seal the joints thereof.

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

In the drawings: Fig. 1 is an end adapted to be assembled in Fig. 2 is a cross sectional lines .2'2 of Fig. 1;

Fig. 3 is a cross sectional view 33ofFig.1;

Fig. 4 is a cross sectional view along the lines H of Fig. 1;

Fig. 5 is a vertical cross sectional view of a cooling unit embodying my invention.

Referrin to the drawings, a-cooling unit, generally esignated as and embodying my invention, may be made of several members generally designated as 21. These members 21 may be unidirectionally nested together and because of their general cupped nature they form refrigerant passages, as will hereafter more fully appear. These members 21 may be exactly alike, be of a generally similar nature, bein slmilar only to the necessary extent of tting with each other. These members 21 may be made of pressed sheet metal, and may be termed cupped inso-far that theyhaveside walls, such as 22 and 23 and bottom walls 24 and 25. Walls 22 to 25 inclusive when unassembled form an open channel for the reception of refrigerant, this channel being designatedat 26 and 27. The wall 25 may be provided with a large opening 28, and small openings 29 surround elevation of a member a cooling unit; view along the along lines one 01 more passages or they may the large .opening 28. The Wall 22 extends entirely around the circumference of the member. One or more walls 23 extend within the periphery of the member 21 and form 30, adapted to form accessible freezing chambers to receive ice trays. as a unit,-the walls 23 prevent refrigerant from entering the passage 30, and the walls 22 prevent refrigerant from escaping into the atmosphere. The opening 28, which is common to all of the cupped members, is adapted to allow the refrigerant to flow from one member 21 to other members 21 within the cooling unit 20, and this opening 28 is also adapted to receive the refrigerant control member 31 and thus form a float chamber. The end cupped member 21' is adapted to receive the supporting plate 32 of the refrigerantcontrol member 31. The refrigerant conduits, such as conduits 33 and 34 connect with the interior of the cooling unit 20 thru the plate 32. The float 35, and all of the other parts of the refrigerant control member, are adapted to fit into openings 28 of one Or more members 21. Theend member 21' may have additional openings 29 formed around the opening 28, for the purpose of receiving fastening members 37 .for securing the plate '31 on the member 21. The other cuphaped members 21 may be provided with the holes 29 if desire or the holes may be omitted. The refrigerant passages in the other end member 21 are sealed by a member 40, which may be substantially flat and have the shape of the bottom walls 24 and 25 o the standard members 21. This member 4 thus seals the refrigerant passages of the end member 21". In order to seal the seams of the cooling unit, the unit may be dipped in molten solder or theseams may be individually soldered, or any other means of securing a tight fit between the seams may be resorted to. a

.When the cooling unit 20 is in use, the refrigerant enters thru conduit 33 in accordance with the control of the float and the evaporated refrigerant returns to the refrigcrating machinery thru the conduit 34 which has an opening 34' within the cooling unit.

When the members 21 are assembled The top of the liquid refri erant, generally designated as 41, is above t e lower ortion of openings 28 so that the liquid refrigerant may flow freely from one member 21 to another. Since there are channels formed within the cupped members 21 by the walls 22 and 23, the liquid refrigerant may flow in the channels 26 and 27' and thus a large refrigerating area is produced. Passages 30 are adapted .to receive the usual ice trays.

While this Cooling unit is adapted to be used with a volatile refrigerant, it is to be understoodthat this invention may also be used with cooling units adapted to use other types of refrigerant, such as brine, etc. Many features of this invention may be used in cooling units embodying indirect refrigeration, such as those using'both the volatile and non-volatile refrigerants in the same system.

-What is claimed is as follows q 1. A cooling unit comprising a series of similar cupped members unidirectionally nested together, each of said members being provided with an opening surrounded by a refrigerant retaining wall, said walls being in alignment to forman. accessible ice tray compartment, said compartment being surrounded by refrigerant ducts which are formed entirely by the adjacent similar members including said refrigerant retaining walls.

2. A cooling unit comprising a series of similar cupped pressed metal members unidircctionally nested together, said members being provided with an opening surrounded by an integral refrigerant retaining wall, said walls being in alignment to form an accessible ice tray compartment, theadjacent similar members alone cooperating to form refrigerant ducts surrounding the ice tray compartment.

3. A cooling unit comprising a series of similar cupped members unidirectional! nested together, said members being provid ed with two opening surrounded by integral refrigerant retaining walls, said walls being in alignment, each of said members with their Walls cooperating with an adjacent member to form a refrigerant channel surrounding one of said openings.

4. A cooling unit comprising a series of similar cupped, pressed metal members unidirectionally nested together, said members being provided with two openings surrounded by inte ral refrigerant retaining walls, said walls icing in alignment, 'each of said members with their walls cooperating solely with an adjacent similar member to form a refrigerant channel surrounding at least one of said openings.

"In testimony whereof I hereto aiiix my signature.

SAMUEL E. BICKLE.

Images