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, 2013
Filed:
Jul. 06, 2010
Christopher Hsu, Avon, OH (US);
Jeffrey J. Krupp, Vermilion, OH (US);
Christopher Hsu, Avon, OH (US);
Jeffrey J. Krupp, Vermilion, OH (US);
Nelson Stud Welding, Inc., Elyria, OH (US);
Abstract
A drawn arc welding process that includes the steps of providing a work piece, providing a welding tool holding a metal object onto the work piece, providing a power supply outputting a preset current, providing an arc voltage sensing device, lifting the metal object and drawing a pilot arc current, energizing a welding current locally melting the metal object and forming a weld pool in the work piece, measuring an arc voltage, predicting the arc voltage for a remaining time of the welding process, regulating the time of the welding process wherein the measured arc voltage and predicted arc voltage are utilized to control a desired energy input set point, and plunging the fastener into the locally melted work piece forming a weld between the metal object and the work piece.