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:
Oct. 04, 1983
Filed:
Jun. 05, 1981
Robert Baboian, Johnston, RI (US);
Gardner Haynes, Attleboro, MA (US);
Texas Instruments Incorporated, Dallas, TX (US);
Abstract
Protection from corrosive effects of water in hot water tanks is provided by an electrochemically active noble metal type anode disposed in the hot water tank and supplied by a selected level of current passing from the anode through the water to the tank. The anode is configured in such manner as to cause the current to be distributed throughout the entire tank and thus for a conventional tank takes the form of a long thin anode. The noble metal is shown to be clad or plated onto an electrically conductive and, under anodic conditions, chemically inert strip of metal supported on a suitable electrically insulative member. The power supply provides a minimum protective current for water having low corrosivity characteristics, a maximum protective current for water having high corrosivity characteristics and intermediate these two extremites a level which varies with the degree of corrosivity of the water.