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US4303074A Expired / Lapsed US ⏱️ 0.0 years remaining

Method for applying therapeutic heat

Assignee: 60478 MANITOBA Ltd
•
Filing: 1979-06-11
•
Granted: 1981-12-01
•
Expires: 1999-06-11
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Abstract

Abstract A method for applying therapeutic heat by a therapeutic heating pad which is not hot to the touch provides substantial infrared radiation to a user. Accordingly it can be used for extended periods without feeling uncomfortable to the skin, while imparting deep therapeutic heat to the user. The heating pad is comprised of a radiant heat generating layer having a plane surface comprising means for radiating heat evenly from its surface, a pair of flexible electrically insulating and radiation permeable layers located adjacent and covering opposite sides of the layer, a thermal insulation layer disposed against and covering one of the electrically insulating layers, a radiation reflective layer disposed against and covering the outside surface of the thermal insulation layer, and a sealed radiation permeable envelope enclosing the entire heater. Preferrably the flexible heat generating layer is comprised of a fiber glass mat impregnated with a resistive material, which material provides a surface temperature, when current is conducted therethrough, which is between 60 degrees Celsius and 65 degrees Celsius.

Inventors

  • 👤 Joseph M. Bender

Bibliographic Details

Application Number —
Jurisdiction US
Data Source google_patents
Last Synchronized 2026-10-25 12:36
CPC Classifications
A; A61; A61F; A61F7/00; A61F7/007; H; H05; H05B; H05B3/00; H05B3/20; H05B3/34; H05B3/36; H05B3/38; A61F2007/0086; A61F2007/0088; H05B2203/00; H05B2203/011; H05B2203/013; H05B2203/017; H05B2203/032

Claims Analysis

Total Claims: 8
Claim 1
Independent Claim 106 words
A method for applying therapeutic heat comprising the steps of: (a) generating radiant heat energy at a wavelength which penetrates into a human or animal body, said radiant heat being generated in at least one flexible electrically insulating and radiant energy permeable layer, (b) disposing a thermal insulation layer against the human or animal body and covering it with the layer forming the source of said radiant energy, (c) reflecting said radiant energy against the surface of and through the thermal insulation layer and into the human or animal body, and (d) sealing a radiant energy permeable envelope around the entire heater used in steps (a)-(c).
Claim 2
Independent Claim 106 words
A method for applying therapeutic heat comprising the steps of: (a) generating radiant heat energy at a wavelength which penetrates into a human or animal body, said radiant heat being generated in at least one flexible electrically insulating and radiant energy permeable layer, (b) disposing a thermal insulation layer against the human or animal body and covering it with the layer forming the source of said radiant energy, (c) reflecting said radiant energy against the surface of and through the thermal insulation layer and into the human or animal body, and (d) sealing a radiant energy permeable envelope around the entire heater used in steps (a)-(c).
Claim 3
Dependent Claim 32 words
A method of applying radiant therapeutic heat as defined in claim 1 in which the radiant heat generated in step (a) is generated from a fiberglass mat impregnated with a resistive material.
Claim 4
Dependent Claim 29 words
The method of claim 2 wherein said fiberglass mat impregnation comprises: 45 parts graphite (83%-90%), 25 parts silicone, 9 parts casein, 20 parts probiofan L5, 102-0.05 parts of silikorentschaumer.
Claim 5
Independent Claim 75 words
A method of applying therapeutic heat comprising the steps of: (a) generating radiant heat energy at a wavelength which penetrates into a human or animal body, said radiant heat being generated in at least one flexible layer, (b) interposing an electrically insulating and radiant energy permeable layer between a human or animal body and the flexible layer, and (c) reflecting the radiant energy from the side of said layer opposite said body toward the body.
Claim 6
Independent Claim 75 words
A method of applying therapeutic heat comprising the steps of: (a) generating radiant heat energy at a wavelength which penetrates into a human or animal body, said radiant heat being generated in at least one flexible layer, (b) interposing an electrically insulating and radiant energy permeable layer between a human or animal body and the flexible layer, and (c) reflecting the radiant energy from the side of said layer opposite said body toward the body.
Claim 7
Dependent Claim 32 words
A method of applying radiant therapeutic heat as defined in claim 4 in which the radiant heat generated in step (a) is generated from a fiberglass mat impregnated with a resistive material.
Claim 8
Dependent Claim 29 words
The method of claim 5 wherein said fiberglass mat impregnation comprises: 45 parts graphite (83%-90%), 25 parts silicone, 9 parts casein, 20 parts probiofan L5, 102-0.05 parts of silikorentschaumer.

References Cited (Backward Citations)

US2299162A Cited
US2559077A Cited
US2769892A Cited
US2783358A Cited
US3098428A Cited
US3178559A Cited
US3173419A Cited
US3865656A Cited
US3621192A Cited
US3697728A Cited
US3751620A Cited
US3657517A Cited
US3900654A Cited
US3710075A Cited

USPTO Annuity & Maintenance Windows

Annuity Stage Window Opens Payment Deadline Surcharge Period Until Estimated Fee Status
3.5 Years (Year 4) 1984-11-30 1985-06-01 1985-12-01 $2000.00 Window Closed / Lapsed
7.5 Years (Year 8) 1988-11-30 1989-06-01 1989-12-01 $3760.00 Window Closed / Lapsed
11.5 Years (Year 12) 1992-11-30 1993-06-01 1993-12-01 $7700.00 Window Closed / Lapsed

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