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:
Jul. 19, 2011
Filed:
Sep. 25, 2007
Jackie L. Winn, Mt. Pleasant, SC (US);
Jackie L. Winn, Mt. Pleasant, SC (US);
Kaliburn, Inc., Charleston, SC (US);
Abstract
A starting circuit for use with a plasma torch is provided including circuitry for initiating a pilot arc using a unipolar voltage impulse. A transformer is selectively coupled to a DC source so that an impulse is introduced using the same DC source used to maintain an established pilot arc. A method is provided wherein an arc can be initiated while at the same time the DC source is pre-loaded so that surge injection circuitry is not needed to sustain the arc while ramping to the full pilot arc current level.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile