Direct coupled tong and spider

Details Direct coupled tong and spider Direct coupled tong and spider

1999-06-11

2000-11-07

Eley, Timothy V.

Tools

Wrench, screwdriver, or driver therefor

Machine

81 5716, B25B 1350

Patent

active

061420409

ABSTRACT:
A spider, preferably a flush mounted spider, and powered lead tong are coupled by a rotationally rigid structure so that torque reaction forces apply no side load to pipe. The tong preferably tilts upward to clear larger objects approaching the spider. An optional grabber is mounted, preferably atop the lead tong, and may tilt with the lead tong. Fluid powered motors, linear or rotary, provide the tilting energy and extend and retract the grabber. The tong and related structure has quick coupler provisions for removal from the spider.

REFERENCES:
patent: 3771389 (1973-11-01), Coyne
patent: 3780815 (1973-12-01), Barron et al.
patent: 4545269 (1985-10-01), Lemaire et al.
patent: 5081888 (1992-01-01), Schulze-Beckinghausen
patent: 5099725 (1992-03-01), Bouligny, Jr.
patent: 5161438 (1992-11-01), Pietras
patent: 5259275 (1993-11-01), Schulze-Beckinghausen
patent: 5664310 (1997-09-01), Penisson
patent: 5842390 (1998-12-01), Bouligny et al.

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