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. 20, 1996
Filed:
Jul. 25, 1994
David A Roederer, Frankfort, KY (US);
Webster Heating and Specialty Products, Inc., Frankfort, KY (US);
Abstract
Disclosed is a DC-powered spark-generating circuit for igniting fuel. Such circuit has two primary windings on a common transformer core and a separate transistor controlling power to each primary winding. Each transistor has a gate and a drain and such gates and drains are 'cross-coupled.' That is, the gate of the first transistor is coupled to the drain of the second transistor and the drain of the first transistor is coupled to the gate of the second. Also disclosed is a method for spark-igniting fuel. Such method includes applying a voltage across an air gap at a first frequency, establishing an arc across the air gap and maintaining the arc at least until the fuel ignites. Such arc is maintained at a second frequency which different from (and preferably higher than) the first frequency.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile