Phase change heat packs
US9605874B2 · kind B2 · utility
2Cited by
28References
12Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Mar 14, 2014 |
| Grant date | Mar 28, 2017 |
| Priority date | — |
| Expiry date | May 18, 2035 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02E60/14
- WIPO fieldMedical technology
- WIPO sectorInstruments
Abstract
A heat pack includes a housing, a first phase change material (PCM) that is contained in the housing, and a thermal storage buffer that is contained in the housing. The thermal storage buffer includes a second PCM. An initiator is in operative contact with the first PCM. Activation of the initiator causes crystallization of the first PCM, and the first PCM cooperates with the thermal storage buffer to provide heat at a predetermined temperature range upon crystallization of the first PCM.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.