US2366894A

US2366894A - Door construction

Info

Publication number: US2366894A
Application number: US432050A
Authority: US
Inventors: Walter A Ellsworth
Original assignee: Seeger Refrigerator Co
Current assignee: Seeger Refrigerator Co
Priority date: 1942-02-23
Filing date: 1942-02-23
Publication date: 1945-01-09
Anticipated expiration: 1962-01-09

Description

Jan. 9, 1945. w ELLSWORTH 2,366,894

DOOR CONSTRUCTION Filed Feb. 23, 1942 2 Sheets-Sheet l Jan. 9; 1945. w. A; ELLSWORTH DOOR CONS TRUCTION Filed Feb. 23, 1942 2 Sheets-Sheet 2 5 -gwuem tcw WALTER A. ELLSWORTH Patented Jan. 9, 1945 DOOR CONSTRUCTION Walter A. Ellsworth, St. Paul, Minn, assignor to Seeger Refrigerator Company, St. Paul, Minn, a corporation of Minnesota Application February 23, 1942, Serial No. 432,050

2 Claims.

This invention relates to an improvement in material. Th outer sheathing has a relatively smaller depth than the inner sheathing into which the insulating material extends. Then by means of rubber comer blocks, which are anchored in the corners of the outer sheathing under an intumed marginal flange, the inner and outer sheathings are spaced apart with insulating means between the same, thereby providing an insulating door for a refrigerator.

It is a feature to provide a door construction for refrigerators and the like where the outer sheathing is formed of metal or suitable material, which may be painted or enamelled, and which has an integrally formed horizontal intumed marginal flange about the periphery of the same. The rubber blocks are anchored to this inturned flange and project under the same at the corners. Then by means of the inner sheathing which is provided with a suitable depth and with corner portions adapted to rest against and to be secured to the rubber corner blocks, I provide an economical door construction wherein the inner and outer sheathings are cushioned in relation to each other and between which insulating material may be packed.

This application is a continuation in part of my application Serial No. 308,805, filed December 12, 1939, now Patent No. 2,277,483, patented March 24, 1942.

It is also a feature to provide a. nonmetallic insulating finishing strip means between the edges of the inner metallic lining and the outer metallic lining, and to interpose a rubber or composition gasket means between the edge of the finishing strip and the intumed flange edge of the outer sheathing. By this finishing strip and the gasket means, the edges of the inner and outer sheathings are spaced apart by nonmetallic means, which is a poor conductor of heat, and considerable metalmay be saved around the edge of the inner sheathing, as this metal may be cut away excepting at the corners where it contacts with the rubber blocks to support the inner sheathing in place.

These features, together with. other details and objects or" the invention, will be more fully and clearly hereinafter set forth.

In the drawings forming a part of this specification:

Figure l is a perspective view of my door construction embodying my corner blocks.

Figure 21s a detail of a corner of the door illustrated in Figure 1, showing the corner block in dotted outline.

Figure 3 is a cross-section on th line 3-3 of Figure 2.

Figure 4 is a cross-section on the line 4-4 of Figure 2.

Figure 5 is a. perspective view of an alternative form of my door construction.

Figure 6 is a corner-detail of the door shown in Figure 5.

Figure '7 is a section on the line 'I- -l of Figure 6.

Figure 8 is a section on the lin 8-8 of Figure 6.

The drawings illustrate my refrigerator door A in Figure 1 which is formed with an outer sheath ing I0 and an inner sheathing I I. Each of these sheathing members may be formed of metal or other suitable material, and when formed of metal may be enamelled or finished in a suitable manner to coat and decorate the surface thereof in the color desired.

The sheathings I0 and II are pressed into the desired shape when formed out of metal, and the outer sheathing is formed with a curved edge I2 which extends inwardly from the outer face I3 and projects virtually at right angles to the same. whereupon the inner marginal edge is formed with an inwardly extending marginal flange I4 which extends approximately parallel to th outer face I3.

At each corner of the door A, I provide a rubber or composition block I5 made of nonmetallic material and adapted to act as a cushioning means, and to which the corners of the inner sheathing II are anchored by means of the bolt IS; The bolts I6 at each corner engage the washer nuts II which are supported in recesses formed in the corner rubber blocks I5. The nuts I 'I have a wido washer-like head so as to form a broad bearing surface, and thus permit the bolts I6 to engage the same with suffioient force to securely anchor the corners of the inner sheathing I I to the cushioning corner blocks I5. This provides a resilient means at each of the corners of the sheathing I I and between the sheathing I I and the outer sheathing III. In this manner I provide a door construction of a desirable nature, as the metal sheathings are cushionally held together and silenced by the rubber corner blocks, aswell as insulated from each other.

The corner blocks I5 are held anchored to the flange I4 by the screws I8. A gasket member I9 provides the sealing means between the door and the surface of the refrigerator to seal the door 'A in. place when it is closed. The gasket I9 has a hollow head portion and flangemembers extending below the same which engage under the marginal flange I4 and the marginal flange 20 extending about the inner edge of the -inner casing II. the heads of the screws l8, as illustrated in Figure 2. The gasket I9 also acts to provide a sealing means between the inner edge of the marginal flanges I4 and 20 of the outer and inner sheathings, respectively.

The space between the outer and inner sheathings I and I I may be filled with any suitable insulating material not shown. Thus it will be apparent that the door A is formed in an economical manner with the outer sheathing I0 spaced from the inner sheathing II, and with the marginal edges of the flanges Hand 20 spaced apart by the gasket I9 and with the corners of the members anchored together through the insulating rubber cushioning blocks I so as to securely attach the members together and resilienty support them in a manner so that the door A will stand the shock of opening and shutting and yet the sheathing portions will be silently anchored together and resiliently connected.

Figure 5 illustrates an alternative form of the door B of the refrigerator which is similar in structure to the door A, having the corners anchored to the rubber corner blocks held within the corners of the outer sheathing.

In this construction, the rubber corner blocks I5 are virtually identical to those just described in the cornersof the door A and are anchored by the screws I8 to the marginal flange I4 of the outer sheathing III. The inner sheathing II is formed with the integral corner portions 22, while the inwardly extending portion of the sheathing II is cut away at 23 between the corner portions 22. Then by means of the nonmetallic plastic or other suitable nonmetallic strips '24, which are attached by the screws 25 to the depressed flange 26, the cut away space 23 between the comer members 22 is closed. The depressed flange portions 26 are offset from the outer surface of the sheathing II so as to conform to the thickness of the nonmetallic strips 24 to provide a smooth joint between the strips 24 and the sheathing II along the supporting flanges 26 and at the corner portions 22.

The corner portions 22 are formed integral with the inner sheathing II and have foot-like integral flanges 21 which are adapted to be secured by the bolts I6 to the rubber corner blocks I5. This provides the corner anchoring means for the inner sheathing II of the door B and cushions the inner sheathing in relation to the outer sheathing It) at the corners and securely attaches the inner and outer sheathings together.

A sealing gasket 28 which is similar to the gasket I9 is positioned between the flanges I4 and the foot flanges 21, to provide the proper seal for the door B. The gasket 28 has a long inner flange 29 which projects under the foot portions 21 and which extends around and projects inwardly from the marginal flange I4. This inner flange 29 is adapted to rest on the stringer mem- When the gasket I9 is in place, it covers ascaaes bers 30 which extend between the corner blocks I8 and which are provided with a longitudinal recess ill for receiving the inner edge of the flange 29. These stringer members are wedged in the inner portion of the sheathing I0 between the corner blocks I5, and have end'projecting lug portions which engage in the recesses 32 formed in the rubber blocks I5. Thus the stringers 30 are held in place projecting between each of the corner blocks and forming a frame-like portion against which the flange 29 engages and rests. When the strips 24 are anchored in place by the screws 25 to the inner sheathing II, the inner edge 33 of the same presses into the soft gasket flange 29 to provide a sealing joint between the edge of the strips 24 and the gasket 29, alst acting tohold the inside flange 29 hearing tightly against the stringer blocks 30.

Therefore it will be apparent that the door 13 is primarily of the same construction as that of the door A in that the inner sheathing I I is anchored at the corners by the bolts I6 to the rubber corner blocks I5, and when the sheathings I0 and It are formed of metal, it is important that they be insulated from each other so as not to act as conduits from the inside of the refrigerator to the outside around the door edges, and that these sheathing portions be cushionally secured together, making a solid door construction where the parts are cushioned and resiliently supported together in a desirable manner.

In accordance with the patent statutes, I have have described the principles of construction of my door construction; and while I have endeav ored to set forth the best embodiments thereof, 1

desire to have'it understood that these are only illustrative of .a means of carrying out my invention, and that abvious changes may be made within the scope of the following claims without departing from the spirit of my invention.

I claim:

1. A refrigerator door including inner and outer sheathings each provided with a flange, said flanges lying in a common plane on the inside of the door, parallel with the outside of the door and adjacent the edges thereof, and being spaced at their adjacent edges, a resilient corner block disposed between the outer sheathing and said flanges engaging the inside of the outer sheathing and spaced from the flange, a marginal gasket overlying said flanges and having a portion extending into the space between the block and the flanges, and means extending through one of the flanges and supported by the block for securing the entire assemblage in resiliently united position.

2. A refrigerator door including inner and outer sheathings each provided with a flange, said flanges lying in a common plane on the inside of the door, parallel with the outside of the door and adjacent the edges thereof, and being spaced at their adjacent edges, a resilient corner block disposed between the outer sheathing and said flanges engaging the inside of the outer sheathing and spaced from the flanges, a margina1 gasket overlying said flanges and having a portion extending into the space between the block and the flanges, a headed nut counter-sunk in the under side of the blockand a screw extending through the flange of the inner sheathing and the portion of the marginal gasket between the sheathing and the block, and threaded into said nut for securing the entire assemblage in resiliently united position.

' WALTER A. ELLSWORTH.