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. 22, 1988
Filed:
Mar. 26, 1987
Applicant:
Inventor:
Timothy H Houle, Wauwatosa, WI (US);
Assignee:
A. O. Smith Corporation, Milwaukee, WI (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C23F / ;
U.S. Cl.
CPC ...
204148 ; 204197 ;
Abstract
A cathodic protection system for a water heater tank incorporating a resistor anode assembly. The steel water heater tank is provided with an opening and an internally threaded spud is secured to the outer surface of the tank bordering the opening. An anode rod composed of a metal electro-positive to steel extends through the opening to the interior of the tank and the anode is connected to the spud by an electrically conductive plastic cap. The cap provides a resistance to the flow of current between the anode rod and the steel tank to reduce the consumption of the anode.