Stud welding gun with stud detection system

Details Stud welding gun with stud detection system Stud welding gun with stud detection system

2006-02-14

2006-02-14

Shaw, Clifford C. (Department: 1725)

Electric heating

Metal heating

For bonding with pressure

Reexamination Certificate

active

06998564

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.

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patent: 43 24 223 (1995-01-01), None
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European Search Report Mar. 31, 2005, 4 pages.

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