Disposable heat storage unit
OwnerMarvin E. Hartzinventor
Life of this patent
Estimating the term…
Abstract
A disposable heat storage unit comprises a hermetically sealed, heat conductive pouch containing a quantity of a latent heat substance which may be preheated to an initial temperature higher than that of its heat of fusion so that, upon cooling, it releases first its sensible heat followed by the release of the heat of fusion at a constant temperature over a sustained period of time. The unit may be placed in a container within which is positioned an article whose temperature is to be maintained at an elevated level.
Claims15
A single use, disposable, heat storage unit comprising a sealed pouch forming a wholly internal, sealed chamber having a predetermined maximum volume;
- and a particulate, fluent, dry, latent heat storage substance within said chamber, the volume of said substance within said chamber being sufficiently less than said predetermined maximum volume that the particles of said substance do not fill said chamber and are freely movable in all directions within said chamber, said substance having a predetermined heat of fusion temperature in excess of 100.degree. C., said pouch being formed of pliable, moisture resistant, thermal transfer material capable of withstanding without adverse consequences being heated to an initial temperature higher than the heat of fusion temperature of said substance.
Thermal heat storage apparatus comprising a disposable container having walls of thermally insulating material forming a compartment;
- a single use, disposable, sealed, flexible pouch positioned within said compartment and formed of moisture resistant, heat transfer material, said pouch forming a wholly internal, sealed chamber having a maximum volume;
- a dry, particulate, fluent, latent head storage substance accommodated in said chamber, the volume of said substance within said chamber being sufficiently less than said maximum volume that the particles of said substance do not fill said chamber and are freely movable in all directions within said chamber, said substance having a heat of fusion temperature in excess of 100.degree. C., the material of said wall and the material of said pouch being capable of withstanding without adverse consequences being heated to an initial temperature in excess of the heat of fusion temperature of said substance.
Dependencies are inferred from the claim text.