Boring or penetrating the earth – With orienting or racking means for unconnected tools or...
Patent
1999-01-20
2000-10-31
Pezzuto, Robert E.
Boring or penetrating the earth
With orienting or racking means for unconnected tools or...
166 775, 81 5716, E21B 1914
Patent
active
061387762
ABSTRACT:
A pipe handling system comprises a rig floor supported frame adapted to be positioned above the rotary table and in alignment with the hole in the rotary table. It incorporates a centrally located bowl lined with the frame to enable a string of pipe to extend through the rotary table. Appropriate releasable slips are moved into and out engagement. The frame supports an overhead mounting plate, and one version thereof it incorporates hydraulic jacks to raise and lower the mounting plate. The mounting plate supports a horizontally directed hydraulic ram which moves the two end lengths of a long multi length chain looped into a bight to go around a pipe passing near the end of the mounting plate. The bight in the chain grips the coupling of the pipe to hold it fast. This mechanism cooperated with an overhead power tong assembly to enable threading or unthreading of pipe casing and tubing.
REFERENCES:
patent: 3803953 (1974-04-01), Geczy et al.
patent: 4295527 (1981-10-01), Russe
patent: 4348920 (1982-09-01), Boyadjieff
patent: 4479537 (1984-10-01), Reed
patent: 4974686 (1990-12-01), Hisey et al.
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patent: 5388652 (1995-02-01), Smith
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CLINCHER Hydraulic Power Tongs and Back-up brochure, thought to be 1993.
The Clincher Drillmaster brochure, undated.
The Clincher Drillmaster brochure, shown with 550 H Hawk Spinmaster--undated.
CLINCHER 135 Make/Break Tool, undated brochure.
Eckel Hydraulic Power Tongs, Catalog 1986-1987.
FARR Hydraulic Power Tong Equipment and Accessories brochure, undated.
Cannan David N.
Hart Christopher A.
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