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:
Aug. 27, 1996
Filed:
Jan. 17, 1995
Gary G Wild, Rockford, IL (US);
John D Eley, Beloit, WI (US);
Eclipse Combustion, Inc., Rockford, IL (US);
Abstract
A control system for a multiple burner furnace has a programmable processor interfaced to hardware input and output circuitry associated with the furnace. The programmed processor provides a number of operating modules including a polling module, a startup module, a run module, and an alarm module. The processor and the associated hardware are interlocked in such a fashion that safe operation of the furnace is assured. For example, watchdog timers driven from the processor are interlocked with flame sensing hardware to control the main fuel valve and prevent fuel from flowing to the furnace in the event of either hardware or software malfunction. The safety features are equivalent to or better than a hardwired dedicated control system, while providing additional program-related flexibility and functionality.