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:
Jun. 28, 2011
Filed:
Dec. 19, 2006
Michael R Johnston, Troutman, NC (US);
Thomas A. Burdsall, Huntersville, NC (US);
Michael R Johnston, Troutman, NC (US);
Thomas A. Burdsall, Huntersville, NC (US);
Irwin Industrial Tool Company, Huntersville, NC (US);
Abstract
A device for creating an electrical potential, such as a piezoelectric igniter, is connected to a conductor that conducts current to a burn tube to create a spark that ignites the fuel in the burn tube. In one embodiment a gap is formed in the conductor. An insulator is located in the gap such that is can be selectively moved between an insulating position where the flow of electricity over the gap is prevented such that no spark is created in the burn tube and a non-insulating position where electricity is allowed to flow over the gap such that a spark is created in the burn tube. In another embodiment the piezoelectric igniter forms part of the electrical circuit and is in electrical conductive contact or proximity to an electrical conductor that forms part of the ignition circuit. An insulator may selectively located between the igniter and the conductor.