Nova Patents
US3202801A

Body heating means

Abstract

This record has no abstract on file.

US3202801A, drawing sheet 1
Sheet 1 of 1

Term

Term ended

Expired 24 August 1982, 44.1 years ago.

  1. Priority and filed
  2. Granted
  3. Expired
  4. Today

3 claims: 3 independent, 0 dependent

  1. 1
    I claim:1. In an electrical heating pad, comprising in combination, a pad base body, said pad base body including an upper layer of flexible material, a lower layer of flexible material, a means for securing said upper and lower layers together adjacent their perimeter, a circuit of resistance wire passing between said upper and lower layers and being adapted to be operatively connected to a source of electrical energy, a layer of insulating material surrounding said resistance wire, a layer of heat conductive material between said upper and lower layers, a flexible envelope embracing said pad base body, stitching extending through both sides of said envelope and said pad base body creating thereby a plurality of sealed compartments at each side of the unit, and a mass of low thermal conductive particles in each of said compartments.
  2. 2
    In an electrical heating pad, comprising in combination, a pad base body, said pad base body including an upper layer of flexible material, a lower layer of flexible material, a means for securing said upper and lower layers together adjacent their perimeter, a circuit of resistance wire passing between said upper and lower layers and being adapted to be operatively connected to a source of electrical energy, a layer of insulating material surrounding said resistance wire, a layer of heat conductive material between said upper and ' lower layers, a flexible envelope embracing said pad base body, said flexible envelope including an upper and lower layer of flexible material with respect to said embraced pad base body, stitching first extending through the upper layer of said flexible envelope, thence through the upper layer of
  3. 3
    3,202,801. BODY HEATING MEANS Sam P. Saluri, 1033 16th St., West Des Moines, Iowa Filed July 11, 1962, Ser. No. 209,126 2 Claims. (CI. 219—528)5 :I This invention relates to body heating means and more particularly to an electrically heated, heating pad. The use of heating pads using resistance wire as the heating means is old. In general, such heating pads io : consist of a pad structure of cloth, rubber, felt or the like, and in which is embedded the resistance wire which, in turn, is adapted to be electrically connected to a source of electricity. Such common heating pads are relatively lightweight and are incapable of retaining heat for any 15 substantial period of time after they have been turned off. Also, they are not constructed so as to closely conform with or adhere to that part of the body which they engage. Therefore, one of the principal objects of my invention is to provide an electric heating pad that will provide 20 pressure as well as heat to that part of the body area being heat treated. A further object of this invention is to provide a heating pad that will conform with the surface irregularities of the body area of which it engages. 25 A still further object of this invention is to provide an electric heating pad that will remain in a warm state long after it has been disconnected from a source of electrical energy. Still further objects of my invention are to provide an 30 electrical heating pad that is economical in manufacture, durable in use, and refined in appearance. These and other objects will be apparent to those skilled in the art. My invention consists in the construction, arrangements, 35 and combination, of the various parts of the device, whereby the objects contemplated are attained as hereinafter more fully set forth, specifically pointed out in my claims, and illustrated in the accompanying drawings, in which: 40 FIG. 1 is a perspective view of my heating pad;FIG. 2 is an enlarged cross-sectional view of the heating pad, taken on line 2—2 of FIG. 1;and FIG. 3 is a horizontal sectional view of the device taken on line 3—3 of FIG. 2 and more fully illustrates its construction. There are many features of my heating pad that are found in ordinary electric heating pads. It has the usual pad body 10, the resistance wire 11 associated with the pad body, the electrical lead cord 12 operatively elec- 0 trically connected to the resistance wiring, a prong plug 13 on the outer end of the cord, and a switch means 15 imposed in the cord line. My invention, however, relates in general to the treatment of one or two sides of the pad portion. Preferably I install at each side of the pad a flexible compartment holding granular or particle matter. If desired, only one side of the pad portion may have this material compartment, but in my explanation, I shall describe a compartment at each side of the base pad portion. To accomplish this I provide a cloth or like envelope 16 embracing the pad portion 10. Between one side of the pad portion and one side of the envelope 16, and between the other side of the pad portion and the other side of the envelope, I place the dry material 17. This granular material may 65 be of any suitable matter, but I recommend that it be of mineral nature, such as sand, metallic particles, mineral salts, or like. Sand is ideal, because of its cheap cost, substantial weight, and heat retaining characteristics. Certain vegetable and animal matter may also be used, ‘° such as grain, plastic particles, ground bone and like. 3,202.801 said pad base body, then through the lower layer of said pad base body, then through the lower layer of said flexible envelope thereby creating a plurality of sealed compartments at the upper and lower surfaces of said pad base body, and a mass of low thermal conductive particles in each of said compartments. References Cited by the Examiner UNITED STATES PATENTS 10 515,693 2/94 Nutting _____________ 219—529 RICHARD M. WOOD, Primary Examiner.
Independent claims3