The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Nov. 11, 1980
Filed:
Mar. 12, 1979
W Peter Teagan, Acton, MA (US);
Arthur D. Little, Inc., Cambridge, MA (US);
Abstract
In an integral storage collector solar heating system, water heated in a conventional hot water heater is first preheated in an integral storage collector. The storage collector includes a heat storing medium, preferably clean water, in a storage tank. Water to be heated is forced by line pressure through heat exchange pipes immersed in the heat storing water. The heat of fusion of the storing water prevents freezing of the line water. To preclude excessive pressure in the heat storage tank with high temperatures of the heat storing water, a heat pipe is provided to act as a large heat leak at about the vaporization temperature of the water. Also, a pressure relief valve is provided. The system avoids freezing and contamination of the water and does not require temperature control circuitry or a pump.