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. 06, 2007
Filed:
Feb. 07, 2005
Larry D. Kidd, Florence, SC (US);
R. Dale Shropshire, Hartsville, SC (US);
John S. Haefner, St. Louis, MO (US);
G. Scott Vogel, Fenton, MO (US);
Larry D. Kidd, Florence, SC (US);
R. Dale Shropshire, Hartsville, SC (US);
John S. Haefner, St. Louis, MO (US);
G. Scott Vogel, Fenton, MO (US);
Emerson Electric Co., St. Louis, MO (US);
Abstract
A control for a water heater is provided that comprises a pressure switch for sensing a predetermined level of airflow sufficient for maintaining proper burner operation, and a temperature sensing means for sensing the temperature of the water in the tank. The control further comprises a processor for controlling the operation of the burner to maintain the water temperature above a predetermined value. When the processor receives a signal from the pressure switch indicating an insufficient level of airflow, the processor shuts down the burner and subsequently attempts to restart the burner. The processor will also lock-out further burner operation after a predetermined number of consecutive shut downs occurs before the water is heated to a desired temperature during a single call for heating.