Self-regulating heat pack
US5984953A · kind A · utility
120Cited by
17References
35Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | May 21, 1998 |
| Grant date | Nov 16, 1999 |
| Priority date | — |
| Expiry date | May 21, 2018 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02E60/14
- WIPO fieldMedical technology
- WIPO sectorInstruments
Abstract
The invention relates to a self-heating, disposable heating pack utilizing an exothermic chemical reaction. Self-moderation of the heat pack is provided through the use of a preformed reversibly stiffenable gel that alters the rate of exothermic chemical reactions. A vaporizable solvent is used to adjust the gel stiffness. The heat pack can be used in heat transfer or ambient temperature conditions which differ from those anticipated as design conditions.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.