The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Dec. 01, 1981
Filed:
Jun. 11, 1979
Joseph M Bender, Winnipeg, CA;
Pascal & Associates, Ottawa, CA;
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.