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:
Mar. 04, 1980
Filed:
Dec. 27, 1977
Myrl J Saarem, Carson City, NV (US);
Donald E Lovelace, Carson City, NV (US);
Dale C Firebaugh, Carson City, NV (US);
Dale F Soukup, Carson City, NV (US);
Richdel, Inc., Carson City, NV (US);
Abstract
A domestic solar water heater system is provided which includes a collector, a storage tank, and a circulating pump. The system also includes a solid state electronic control module which automatically stops the circulating pump when the temperature of the water in the collector drops below the temperature of the water in the storage system, so that water is circulated through the system only when solar heat is available to heat the water to a temperature above the temperature of the water already stored in the storage tank. The system also includes a valve module which, upon a signal from the control module, causes the water to drain out of the collector when the temperature of the water in the collector falls to freezing temperatures so as to prevent damage to the collector. The control module also serves to stop the pump, to close the valve module, and to drain the collector when the temperature of the water in the storage tank reaches a predetermined maximum temperature.