Fluid cooled torch

Details Fluid cooled torch Fluid cooled torch

1990-04-16

1991-09-03

Shaw, Clifford C.

Electric heating

Metal heating

Nonatmospheric environment at hot spot

219136, B23K 900

Patent

active

050456652

ABSTRACT:
A torch system adapted primarily for a welding torch comprises an elongated handle within which is a manifold. Passages in the manifold permit separate tubes or conduits that carry cooling water and shielding gas to be incorporated into a single series of concentric tubes projecting from the handle which create annular passages radially spaced from each other. These passages carry the cooling water and the heated return water after it has cooled the torch head at the distal end of the apparatus. The distal end of the apparatus has a torch head, the inward facing face of which is in contact with the cooling water as it flows from the inner annular passage radially outward to the outer annular passage. The water returns through the handle and to the individual return conduit, then back to a suitable receptacle, which may be in the form of a heat exchanger or refrigerator that removes the heat injected into the cooling fluid by the torch head.

REFERENCES:
patent: 3350537 (1967-10-01), Lawrence et al.
patent: 3461269 (1969-08-01), Stevens et al.
patent: 3493716 (1970-02-01), Martin
patent: 3629539 (1971-12-01), Roberts
patent: 4571475 (1986-02-01), Rabe

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