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:
Jul. 15, 2025
Filed:
Jun. 09, 2022
Applicants:
James E. Pearson, Itasca, IL (US);
Timothy M. Wright, Itasca, IL (US);
Inventors:
James E. Pearson, Itasca, IL (US);
Timothy M. Wright, Itasca, IL (US);
Assignee:
Robertshaw Controls Company, Itasca, IL (US);
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
F23N 1/08 (2006.01); F21V 33/00 (2006.01); F24H 9/20 (2022.01); G05G 1/10 (2006.01);
U.S. Cl.
CPC ...
F23N 1/087 (2013.01); F21V 33/006 (2013.01); F24H 9/20 (2013.01); F24H 9/2035 (2013.01); G05G 1/105 (2013.01); F23N 2225/08 (2020.01); F24H 9/2007 (2013.01);
Abstract
A backlit temperature control knob for water heater valves used with water heaters and more particularly to gas water heaters provides a way to read the temperature indication not previously known in the art. Some embodiments rely on a thermocouple or thermopile normally used to power a safety magnet with the pilot light system as a source of electrical energy to selectively illuminate a Light Emitting Diode (LED) which directs light through at least a portion of the knob to assist in reading the temperature indications.