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:
Feb. 14, 2006
Filed:
Apr. 18, 2003
Applicants:
Reed Robert Papke, Allen Park, MI (US);
Richard Louis Eberling, St. Clair, MI (US);
Inventors:
Reed Robert Papke, Allen Park, MI (US);
Richard Louis Eberling, St. Clair, MI (US);
Assignee:
Newfrey LLC, Newark, DE (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
B23K 9/20 (2006.01);
U.S. Cl.
CPC ...
Abstract
A stud welding gun includes a closed conductivity path indicating a stud properly positioned for welding. Another aspect includes a conductivity detection circuit closed when a stud is present. A further aspect provides a method to operate a stud welding gun including closing a conductivity path to permit a welding operation. A still further aspect provides a method to detect a stud presence by passing a conductivity current from a conductivity detection circuit through a conductivity path closed by a stud.