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:
Jul. 05, 1983
Filed:
Feb. 24, 1981
Applicant:
Inventors:
Donovan B Mathes, Lake Havasu City, AZ (US);
Floyd B Hamilton, Lake Havasu City, AZ (US);
Douglas C Spreng, Lake Havasu City, AZ (US);
Assignee:
Solar Dynamics Inc., Lake Havasu, AZ (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
F24J / ;
U.S. Cl.
CPC ...
126437 ; 126420 ; 1376275 ;
Abstract
This disclosure relates to a control and protection system for a solar water heater apparatus, which incorporates a temperature differential controlled variable speed drive for the circulating pump, and a drain down valve which is responsive to low collector temperature, high tank temperature and also to power loss, to serve in combination as a device to optimize efficient energy collection while also protecting the tank against overheating and further protecting the collector panel against freeze-up even during periods of power loss.