Instant hot or cold, reusable cold pack
US4462224A · kind A · utility
180Cited by
12References
20Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jul 11, 1983 |
| Grant date | Jul 31, 1984 |
| Priority date | — |
| Expiry date | Jul 11, 2003 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF25D2303/08222
- WIPO fieldMedical technology
- WIPO sectorInstruments
Abstract
A three-compartment, instant hot or cold, reusable cold pack for transferring heat to or from an object. A first compartment contains a predetermined amount of a solvent comprised primarily of water. A second compartment contains a predetermined amount of a solute capable of essentially completely dissolving in the solvent. A third compartment contains a gelling agent capable of gelling with the solvent and solute solution and producing a gel that is relatively soft and moldable when frozen.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.