Blast joint for snubbing unit

Details Blast joint for snubbing unit Blast joint for snubbing unit

1991-04-23

1994-05-24

Arola, Dave W.

Pipe joints or couplings

With casing, lining or protector

285351, 285353, 285357, 285404, 166243, F16L 1112

Patent

active

053142098

ABSTRACT:
A blast joint for use with a snubbing unit includes a casing around the protective rings and means for sealing around the bottom of the rings between the tubing and the casing.

REFERENCES:
patent: 1494693 (1924-05-01), Loi
patent: 4141386 (1979-02-01), Bergstrom
patent: 4211440 (1980-07-01), Bergstrom
patent: 4280535 (1981-07-01), Willis
patent: 4295666 (1981-10-01), Melanson
patent: 4423778 (1984-01-01), Goldsmith
patent: 4519634 (1985-05-01), Hand
patent: 4522234 (1985-06-01), Kellner et al.
patent: 4613165 (1986-09-01), Kuhne
patent: 4685518 (1987-08-01), Claycomb

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