Blowout preventer, shear ram, shear blade and seal therefor

Details Blowout preventer, shear ram, shear blade and seal therefor Blowout preventer, shear ram, shear blade and seal therefor

1986-01-02

1987-03-03

Leppink, James A.

Wells

Means for perforating, weakening, bending or separating pipe...

With disparate below ground feature

277129, E21B 2908

Patent

active

046468250

ABSTRACT:
Opposed rams are sealably and reciprocally mounted in a body with opposed shear blades projecting from one end of each ram for movement toward each other to sever an elongated object extending between the rams and blades. A seal is provided on each blade and configured to sealingly receive therein the exposed portion of the opposed blade after the object has been severed, and each ram is provided with a cut out portion to receive the adjacent severed end of the elongated object to inhibit crushing thereof.

REFERENCES:
patent: 3561526 (1971-02-01), Williams, Jr.
patent: 3946806 (1976-03-01), Meynier, III
patent: 4313496 (1982-02-01), Childs et al.
patent: 4519577 (1985-05-01), Jones
patent: 4537250 (1985-08-01), Troxell, Jr.
Texas Oil Tool Inc., Shear Ram Assembly, Drawing #8011-0821 rev. A, approximately Dec. 1980.

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