Power operated pipe slips and pipe guide

Details Power operated pipe slips and pipe guide Power operated pipe slips and pipe guide

1980-02-21

1981-12-22

Frazier, Roy D.

Buckles, buttons, clasps, etc.

Strap-end-attaching devices

Buckle connected

24263D, E21B 304

Patent

active

043063390

ABSTRACT:
A pipe or casing spider coaxially overies a base ring and is provided with a plurality of slips supported by a slip ring above the spider. The slip ring and slips are moved vertically by a plurality of pressure cylinders interposed between the base ring and slip ring. A support plate coaxially underlies the base ring and is provided with a radial latch tongue slidable toward and away from the axis of the spider for maintaining a tubular string coaxially aligned with the spider.

REFERENCES:
patent: Re23842 (1954-06-01), Moore
patent: 2034101 (1936-03-01), Howard et al.
patent: 2231923 (1941-02-01), Koen
patent: 2810552 (1957-10-01), Martin
patent: 2822670 (1958-02-01), Suderow
patent: 3096075 (1963-07-01), Brown
patent: 3233868 (1966-02-01), Harvey et al.
patent: 3449002 (1969-06-01), Bernard
patent: 3571865 (1971-03-01), Johnson
patent: 3748702 (1973-07-01), Brown

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