Welding clamp for pipe fittings

Details Welding clamp for pipe fittings Welding clamp for pipe fittings

1997-07-22

1998-11-24

Ryan, Patrick

Metal fusion bonding

Process

With clamping or holding

228 443, 269 49, B23K 3704

Patent

active

058396470

ABSTRACT:
Weldolets or threadolet type fittings are welded onto pipe while being clamped in position with a clamp assembly that includes a threaded bolt, a wing nut, a positioning star with tapered arms which can slide along the axis of the bolt, and a tapered swivel anchor that is pivotally connected to an end of the bolt. In operation, the fitting is positioned at a hole in the pipe. The swivel anchor and bolt are inserted through the fitting into the pipe. The positioning star is engaged with a free end of the fitting and then the wing nut is tightened to produce a forced engagement between the positioning star and the fitting. This positions the fitting into concentric alignment with the hole and orthogonal alignment with the pipe.

REFERENCES:
patent: 2172461 (1939-09-01), Whitescarver
patent: 2387154 (1945-10-01), Kalwitz
patent: 4615514 (1986-10-01), Hamlin

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