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. 12, 2019
Filed:
Dec. 22, 2017
Applicant:
Honeywell International Inc., Morris Plains, NJ (US);
Inventors:
Jan Vorlicek, Stepanovice, CZ;
Jiri Kastan, Brno, CZ;
Assignee:
Honeywell International Inc., Morris Plains, NJ (US);
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
F23N 5/12 (2006.01); F23N 5/24 (2006.01); G08B 17/12 (2006.01);
U.S. Cl.
CPC ...
F23N 5/123 (2013.01); F23N 5/242 (2013.01); F23N 2023/08 (2013.01); F23N 2029/12 (2013.01); G08B 17/12 (2013.01);
Abstract
A system for changing a bias level of a flame sensing circuit to identify leakage in the flame sensing circuit. The bias level may be varied in the positive or negative axis and the flame current may be noted to identify leakage. The bias level may be changed by a microcontroller. The bias level may be changed using an operational amplifier configuration which is used as a signal conditioner for interfacing the flame signal to the microcontroller.