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. 03, 1981
Filed:
Mar. 10, 1980
William R Walters, Cleveland, OK (US);
Other;
Abstract
An energy saver control system for prevention of water freezing in an outdoor tank, such as a stock tank, which involves a conventional type of water level control valve to maintain a selected level of water in the tank, and an electrical switch which is controlled by the pressure which is in the water line leading to the water level control valve. Means are provided to control the rate of water flow into the tank to a selected low value, sufficient for prevention of freezing of the surface of the water in the tank. When water is flowing into the tank the electrical heater is cut off. The electrical switch is controlled by the pressure in the water line leading to the water level control means.