Resistance projection welder error inhibitor

Details Resistance projection welder error inhibitor Resistance projection welder error inhibitor

2005-04-12

2005-04-12

Stoner, Kiley S. (Department: 1725)

Electric heating

Metal heating

For bonding with pressure

C219S093000

Reexamination Certificate

active

06878897

ABSTRACT:
A device is shown for determining if a weld nut is oriented or even present on a work piece before welding is initiated. This device determines the status of the weld nut by gauging the pressure of the air. If the weld nut is correctly oriented, then a predetermined pressure has been obtained and the welding of the nut to the work piece occurs. If an elevated air pressure is read, the device does not send a signal to weld as the weld nut is oriented upside down. If the air pressure is high, or at or nearing the supply pressure, then there is no weld nut present and no weld signal is delivered.

REFERENCES:
patent: 6303893 (2001-10-01), Perks
patent: 6355900 (2002-03-01), Sherman
patent: 6576859 (2003-06-01), Cabanaw

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