Annular packing unit and insert

Details Annular packing unit and insert Annular packing unit and insert

1984-10-19

1987-04-14

Ward, Robert S.

Seal for a joint or juncture

Seal between relatively movable parts

Relatively rotatable radially extending sealing face member

277199, 251 13, F16J 1512, F21B 3306

Patent

active

046572635

ABSTRACT:
A packer unit and packer insert adapted for use in an annular blowout preventer. The packer insert includes a generally longitudinal web with its leading edge facing the axial bore of the packing unit sloping from top to bottom in a generally radially outward direction.

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patent: 3591125 (1971-07-01), Lewis
patent: 3917293 (1975-11-01), Lewis et al.
patent: 3958808 (1976-05-01), Lewis et al.
patent: 4447037 (1984-05-01), Huey et al.
patent: 4452421 (1984-06-01), Huey et al.
patent: 4461448 (1984-07-01), Huey et al.

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