Spider with discrete die supports

Details Spider with discrete die supports Spider with discrete die supports

2007-09-11

2007-09-11

Bagnell, David (Department: 3672)

Wells

Above ground apparatus

With means facilitating connecting or disconnecting...

C166S077530, C166S075140, C166S098000, C175S423000

Reexamination Certificate

active

10949151

ABSTRACT:
The spider, arranged for support on a drilling rig, is fitted with a plurality of slips peripherally distributed about a slip bowl. Each slip has a plurality of pipe gripping dies distributed vertically and resting on individual abutment surfaces on the slip. Each slip has a generally vertical slide way to receive mating surfaces on the die for radial constraint of the dies.

REFERENCES:
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patent: 5595248 (1997-01-01), Denny
patent: 5848647 (1998-12-01), Webre et al.
patent: 6631792 (2003-10-01), Buck
patent: 7032690 (2006-04-01), Ramey et al.
patent: 7134531 (2006-11-01), Ramey et al.
patent: 2003/0173117 (2003-09-01), Mason et al.
patent: 2006/0113074 (2006-06-01), Baird
patent: 02058694 (1990-02-01), None

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