Devices comprising a heat source material and activation chambers for the same
US10036574B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Jun 27, 2014 |
| Grant date | Jul 31, 2018 |
| Priority date | — |
| Expiry date | Jul 25, 2035 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF28D20/028
- WIPO fieldMedical technology
- WIPO sectorInstruments
Abstract
A device is provided comprising a heat source material which is a phase change material and which undergoes an exothermic phase change upon activation by an activating agent to generate heat, a heat source chamber holding the heat source and an activation chamber providing the activating agent, and a barrier separating the interior of the heat source chamber from the interior of the activation chamber, wherein the activation chamber is deformable and wherein deformation of the activation chamber causes rupture of the barrier to allow contact between the activating agent and the heat source material. Embodiments also provide an activation chamber for use in the device and comprising an activating agent to trigger activation of a heat source material.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.