Electric heating – Metal heating – By arc
Patent
1988-10-11
1990-07-31
Shaw, Clifford C.
Electric heating
Metal heating
By arc
21913744, B23K 912
Patent
active
049452088
ABSTRACT:
The present invention relates to an improved carbon dioxide welding gun which is equipped with a two-piece bushing machanism (50) where a welding nozzle (10) is easily detached or inserted into operative condition in an efficient manner. The two-piece bushing mechanism (50) includes a front conical head (52) and a rear conduit member (51) which are releasably secured each to the other by means of threaded sections. In this manner, the welding gun of the subject invention concept prevents accumulation of carbon residues so that the service life of the overall system is extended.
REFERENCES:
patent: 3529128 (1970-09-01), Cruz, Jr.
patent: 3825720 (1974-07-01), Zillinger, Jr.
patent: 4560858 (1985-12-01), Manning
Klein David I.
Rosenberg Morton J.
Shaw Clifford C.
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