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:
Feb. 14, 2012
Filed:
Jan. 29, 2008
Applicant:
Steven E. Guzorek, Kinston, NC (US);
Inventor:
Steven E. Guzorek, Kinston, NC (US);
Assignee:
Field Controls, LLC, Kinston, NC (US);
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
F23N 3/00 (2006.01); F23N 1/02 (2006.01); F23L 11/00 (2006.01); H01H 3/16 (2006.01); H01H 25/00 (2006.01); F24F 7/00 (2006.01);
U.S. Cl.
CPC ...
Abstract
A damper mechanism for a gas-fired appliance is disclosed. The damper mechanism is mechanically operated in response to changes in pressure within a portion of the appliance. Changes in gas pressure operate to displace a diaphragm, thereby moving a linkage attached to a flue damper, such that the damper can be moved between open and closed positions. An interim damper control activation arm can pivot in response to movement of the linkage to actuate electrical switches, which act to close a magnetic pilot valve when the damper is in a partially-opened or partially-closed position.