US Patent 7613855 Modular control system and method for water heaters

Patent 7613855 was granted and assigned to A. O. Smith on November, 2009 by the United States Patent and Trademark Office.

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Is a

Patent

Patent attributes

Current Assignee

A. O. Smith

Patent Jurisdiction

United States Patent and Trademark Office

Patent Number

76138550

Patent Inventor Names

Wade C. Patterson0

Terry G. Phillips0

Date of Patent

November 3, 2009

Patent Application Number

112016650

Date Filed

August 11, 2005

Patent Primary Examiner

‌

Henry W. H. Tsai

Patent abstract

A water heater has a modular control system. The water heater comprises a tank, a heating element, a first controller, and a second controller. The heating element is coupled to the tank. The first controller is mounted on the tank and has a first communication port. The second controller has a second communication port communicatively coupled to the first communication port of the first controller. The first controller is configured to control the heating element in accordance with a first algorithm in an absence of the second controller, and the second controller is configured to control the heating element in accordance with a second algorithm.