Expandable tool for holding and aligning pipes to be welded

Details Expandable tool for holding and aligning pipes to be welded Expandable tool for holding and aligning pipes to be welded

1995-04-20

1997-03-11

Heinrich, Samuel M.

Metal fusion bonding

Process

With clamping or holding

228 445, 219 611, B23K 37053

Patent

active

056092911

ABSTRACT:
An expandable tool for holding and aligning pipes to be welded together is disclosed. The tool includes an annual array of radially movable gripping elements for engagement with the interior wall of the pipes to be welded. A wedge is mounted for axial movement relative to the gripping elements to effect selective radial outward movement of the gripping elements to align and hold the pipes for welding. The gripping elements are provided with passageways for delivery gas to preselected zones between the gripping elements and the interior wall surfaces of the pipes in the regions to be welded.

REFERENCES:
patent: 2129704 (1938-09-01), Meyer
patent: 2433296 (1947-12-01), Schaefer
patent: 2777048 (1957-01-01), Kocks
patent: 2917114 (1959-12-01), Levendoski
patent: 2994381 (1961-08-01), Brown
patent: 3255822 (1966-06-01), Conrad
patent: 3439940 (1969-04-01), Nunlist
patent: 3873798 (1975-03-01), Friedman et al.
patent: 3916282 (1975-10-01), Rothermel
patent: 3960311 (1976-06-01), Griffiths
patent: 4019016 (1977-04-01), Friedman et al.
patent: 4301355 (1981-11-01), Kimbrough et al.
patent: 4344553 (1982-08-01), Lesher et al.
patent: 4372474 (1983-02-01), Taff
patent: 4386726 (1983-06-01), Taff
patent: 4405075 (1983-09-01), Roddy
patent: 4631385 (1986-12-01), Rothermel
patent: 4776507 (1988-10-01), Hoffmann
patent: 4780594 (1988-10-01), Rothermel
patent: 4867368 (1989-09-01), Tesch
patent: 5235152 (1993-08-01), Jankus
patent: 5398862 (1995-03-01), Aleman
Tube-a-Liner.TM.. . . from Dearmanl!, Cogsdill Tool Products, Inc., Flyer No. D943A, no date.

Affiliated with

Also associated with

Rating

Expandable tool for holding and aligning pipes to be welded does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Expandable tool for holding and aligning pipes to be welded, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Expandable tool for holding and aligning pipes to be welded will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-437648