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:
Sep. 03, 2013
Filed:
Apr. 09, 2010
Peter Anderson, St. Paul, MN (US);
Jonathan Mcdonald, Bloomington, MN (US);
Peter Stolt, Crystal, MN (US);
Henry E. Troost, River Falls, WI (US);
Peter Anderson, St. Paul, MN (US);
Jonathan McDonald, Bloomington, MN (US);
Peter Stolt, Crystal, MN (US);
Henry E. Troost, River Falls, WI (US);
Honeywell International Inc., Morristown, NJ (US);
Abstract
A control system for a fuel-fired appliance and methods of operating are disclosed. In an illustrative embodiment, when an electrical characteristic of an optical detector, such as a resistance, does not change by at least a predetermined amount during an ignition trial, and/or when a level of EMI or electrical noise detected by an antenna in a burner assembly of the fuel-fired appliance does not increase during the ignition trial, the control system may determine that the ignition assembly is not sparking properly. In some instances, the control system may also be programmed to activate an indicator that would indicate to a user or technician a potential problem with the ignition assembly (e.g. not sparking properly to ignite fuel).