Back to results
US 2026/0174593 A1Published application
Controlled exothermic heat pack
OwnerHagay Weisbrodinventor
Life of this patent
Estimating the term…
Abstract
A system and method for controlling the surface temperature of a heat pack, wherein the heating bag comprises an exothermic chemical reaction as the heat source, a phase changing material as a buffer, and a means of controlling the rate of reaction. Optionally, the system may include one or more thermally conducting materials to increase the rate of heat transfer from the heat pack to the user.
Claims19
A heat pack comprising:
- a heat source comprising an exothermic reaction;
- a buffer comprising a phase transition material;
- and
- a thermally conducting material configured to conduct heat between the heat source to the buffer and an outer contact surface of the heat pack.
1 more element
A method for controlling a temperature of an outer surface of a heat pack, the method comprising:
- supplying heat with a heat source;
- absorbing said heat to a highly thermally conductive material;
- absorbing a first portion of the heat from said highly thermally conductive material to a buffer comprising a phase changing material configured to undergo an endothermic phase transition at a pre-defined temperature;
- and
- conducting a second portion of said heat along said highly thermally conductive material to an outer surface of the heat pack.
2 more elements
Dependencies are inferred from the claim text.