Therapeutic self-generating moist heat pad
Patent 4106477 Issued on August 15, 1978. Estimated Expiration Date: 
August 15, 1995. Estimated Expiration Date is calculated based on simple USPTO term provisions. It does not account for terminal disclaimers, term adjustments, failure to pay maintenance fees, or other factors which might affect the term of a patent.
August 15, 1995. Estimated Expiration Date is calculated based on simple USPTO term provisions. It does not account for terminal disclaimers, term adjustments, failure to pay maintenance fees, or other factors which might affect the term of a patent.Patent References 2018367 2710008 2725060 2935983 3207149 3314413 3774589 InventorAssigneeApplicationNo. 05/460492 filed on 04/12/1974US Classes:126/263.05, Liquid in contact with solid (e.g., water and lime)126/204, BODY WARMERS44/251Activatable by or containing waterExaminersPrimary: O'Dea, William F.Assistant: Joyce, Harold Attorney, Agent or FirmInternational ClassH05B 3/00 (20060101)AbstractA water activated therapeutic moist heat pad structure is described formed with outer porous water retaining layers which enclose an inner layer of distributed heat generating heat cells and an associated water retaining absorbent inner porous layer. In a preferred embodiment the heat cells are formed of electrochemical heat cells wherein a suitable dry electrolyte is provided such as table salt. The inner porous layer is sized to provide the electrochemical heat cells with adequate electrolyte to use up their active ingredients and achieve an extended heating period. The segmentation of the heat cells and their distribution throughout the structure combine to provide a flexible therapeutic moist heating pad which can conform to the body surface to be treated. | |
