Welding gun

Details Welding gun Welding gun

1986-08-22

1988-02-23

Goldberg, E. A.

Electric heating

Metal heating

By arc

21913731, B23K 932, B23K 900

Patent

active

047272384

ABSTRACT:
A fume-extracting welding gun has an internal fume-extracting passage and comprises a handle member and a head member which have a normally-fixed angular position but which can be adjusted to another selected angular position. The head member has variable dimension passageways therethrough to the fume-extracting passageway to enable the vacuum applied at the welding site by the fume-extracting passageway to be varied by varying the flow of air through the passageways. The passageways are provided by openings in overlapping portions of a sleeve member and the head member and rotation of the sleeve member varies the passageway dimension.

REFERENCES:
patent: 3536888 (1970-10-01), Borneman
patent: 3909586 (1975-09-01), Landis et al.
patent: 4496823 (1985-01-01), Mann

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