Patent · US Expired

Heat storage device

US4220196A · kind A · utility

9Cited by

0References

5Claims

0Family size

Assignee

U.S. Philips Corporation · US

Inventors

Klaus Gawron · Aachen, DE
Faramarz Mahdjuri · Bergamo, IT
Johann Schroder · Aachen, DE

Key dates

Filing date	Apr 24, 1978
Grant date	Sep 2, 1980
Priority date	—
Expiry date	Apr 24, 1998

Classification

Technology area (CPC Y)Emerging Cross-Sectional Technologies
CPC primaryY10S165/005
WIPO fieldBasic materials chemistry
WIPO sectorChemistry

Abstract

A heat storage device comprising a closed reservoir within which is positioned a flexible closed container of smaller volume. The flexible container encloses a liquefiable heat-accumulating material; and the reservoir is provided with a heat-transport medium outside of the flexible container. The heat-transport medium always remains in the liquid phase and, upon solidification and shrinkage of the heat-accumulating material, fills the spaces thus formed between the flexible container and the reservoir wall in order to maintain adequate transfer of heat.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.