US2490910A - Electric bed warmer - Google Patents

Description

Dec. 13, 1949 J. s. LATTA, SR 2,490,910 ELECTRIC BED WARMER Filed Feb. 20, 1947 [rm 491L507: Job/z 5. iatt a 8/7,

flzftarxzgg Patented Dec. 13, 1949 UNITED STATES PATENT OFFICE ELECTRIC BED WARMER John S. Latta, Sr., Cedar Falls, Iowa Application February 20, 1947, Serial No. 729,757 2 Claims. (Cl. 219-45).

The present invention relates to electric heaters or warmers.

An object of the invention is the provision of a simple and compact device, utilizing for the most part existing materials, for producing a heater or warmer.

The device of the present invention includes a container and an electric light bulb, which has a wide variety of uses.

An additional advantage of the invention resides in the fact that the device is entirely safe and will not short-circuit or burn or break.

Still another object is the provision of such a heater which has an unusually long life.

Still another object of the invention is the provision of such a device which is practical and inexpensive both in initial cost and in continuing upkeep.

A still further object is the provision of such a heater which is unusually efficient. Such efliciency resides primarily in the fact that all of the heat generated is utilized.

One of the uses of the device is utilizing it as a bed warmer.

With these and other objects in view, my invention consists in the construction, arrangement and combination of the various parts of my device whereby the objects contemplated are attained, as hereinafter more fully set forth, pointed out in the claims and illustrated in the accompanying drawings, wherein the single figure is a view of a heater or warmer showing a plurality of warming units, one of which is shown partially in section.

Referring now in detail to the drawings, the

figure shows two containers or cells l2. These cells ii are the same in both instances and a description of one will suflice for both. The cell 12 in the preferred and simplest form of the invention consists in a standard jar or globe. The present illustration shows such cells 12 made of glass, and accordingly ordinary canning jars may be used if desired.

The upper end of the cell I2 is provided with a reduced cylindrical portion l4 having the threads [6 formed thereon and terminating in an opening l8.

A cap or closure member indicated generally at closes the opening l8 of the cell l2. The cap 20 is provided with a threaded flange 22 for threading onto the threads IS. The top part or closing element of the cap 20 as shown in the present instance may consist of an in-turned flange 24 fitting over a plate or disc 26. Plate 28 rests on the marginal edge of the opening 48.

The plate or disc 26 is preferably of a material which is heat resistant and possesses some degree of resiliency for retaining the cap in tight engagement on the cell 1 2, and preventing it from turning off.

In the center of the plate 26 is a socket opening 28 in which is inserted an electric socket 30. The socket 30 may be any standard socket and includes a pair of rings 32 which engage opposite sides of the plate 26 at the marginal edge of the central socket opening 28. The lower ring is turned up tight against the plate 26 and thereby holds the socket 30 in place in the plate 26.

An electric cord 34 leads from the socket to a common lead 36.

Formed in the holes 38 for the the cell.

The plate 26 in the preferred form is of rigid material for supporting the socket 30 in rigid position. An electric light bulb 40 is inserted in the socket 30 and thereby positioned in the interior of the cell I2. Interposed in one of the electric cords 34 is a switch 42 for controlling the respective cell l2. In the common lead 36 is another switch 44 for controlling both of the heating cells.

A cord 46 is secured between the socket 30 and the electric cord 34 adjacent the socket, for taking the load of the cell oii of the socket and sustaining it by the electric cord 34.

The device is particularly adapted as a bedwarmer. All of the heat generated by the device is confined in the bed and the device thereby becomes efiicient. Control may be had by the electric switch and control may be regulated to a finer degree by burning on and off only one of the heating elements instead of both, if so desired.

While I have herein shown and described a preferred embodiment of my invention, manifestly it is susceptible of modification and rearrangement of the parts without departing from the spirit and scope thereof. I do not, therefore, wish to be understood as limiting my invention to the precise form herein disclosed, except as I may be so limited by the appended claims.

I claim as my invention:

1. In a device of the class described, a cell having an opening therein, the margin of said opening having threads formed on the outer surface thereof, a closure member removably threaded on said threads, said closure member having an electric socket opening formed therein, an electric socket removably secured in said socket opening, clamp means secured to said socket and engaging plate 26 are a plurality of air proper circulation of air through said closure member on opposite sides of the latter, said socket being disposed for supporting an electric bulb in the interior of said cell.

2. In a device of the class described, a, rigid w'all cell having a generally cylindrical opening therein, the margin of said opening having threads formed on the outer surface thereof, a disc of resilient friction material covering said opening, said disc having suflicient rigidity tosustain substantially its shape, athreaded ring threaded on it) said opening, said ring having an inturned portion engaging said disc and retaining the latter in place on the opening, a socket opening in said disc, an electric socket removably secured in said socket opening, annular clamp means secured to said socket in surrounding relation thereto and engaging said disc on opposite sides. of the latter,

said socket being disposed for supporting an electric bulb in the interior of the cell, said disc having a plurality of openings therein in addition to said socket opening.

JOHN S. LATTA, SR.

REFERENCES CITED The following references are of record in the file of this patent:

UNITED STATES PATENTS Number Name Date 369,432 Buckelew Sept. 6, 1887 1,013,327 R. Smith Jan. 2, 1912 1,545,858 V. Smith July 14, 1925 1,651,385 Goodrich Dec. 6, 19 27

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