Fume extracting torch handle

Details Fume extracting torch handle Fume extracting torch handle

1974-02-19

1976-09-14

Truhe, J. V.

Electric heating

Metal heating

By arc

219 74, 219136, B23K 900

Patent

active

039808602

ABSTRACT:
A torch handle for use with a nozzle which includes a fume extracting orifice to remove fumes generated by welding or cutting includes a conduit within the handle for carrying the fumes to a vacuum pump and means for cooling the handle. In one embodiment, cooling is provided by mixing large quantitites of ambient air with the fumes in the vicinity of the nozzle. In another embodiment of the invention, ambient air is drawn into the handle and over the fume conduit and thereafter mixed with the fumes in the pipe leading to the vacuum pump. In a third embodiment, compressed air is directed into the handle from an internal source and passed over the fume carrying conduit within the handle. In a fourth embodiment, cooling water is passed over the surface of the fume extracting conduit within the handle.

REFERENCES:
patent: 2995647 (1961-08-01), Bernard
patent: 3798409 (1974-03-01), Troyer et al.
patent: 3886344 (1975-05-01), Frantzreb, Sr. et al.
Arthur A. Bernard and Richard A. Bernard "Fume-Collecting Welding Guns", Welding Engineer, 10/1970, pp. 43-44.

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