Tree saver packer cup

Details Tree saver packer cup Tree saver packer cup

1975-07-16

1977-05-17

Smith, Robert I.

Seal for a joint or juncture

Seal between relatively movable parts

Relatively rotatable radially extending sealing face member

166 75R, 166202, F16J 1532

Patent

active

040238148

ABSTRACT:
The invention is a packer cup assembly which attaches to the lower end of the mandrel in the tree saver which is itself attached to the "Christmas Tree" of a well head or the like. The assembly is tubular in configuration and comprises a metal part with internal threads at one end and a thinner walled part at its other end. The outer diameter of the lower end of the metal part is less than the outer diameter of the threaded end part in order to permit an elastomeric sleeve to fit over and extend beyond the reduced diameter end part of the metal part. The outer end of the elastomeric sleeve is flared outwardly and then tapered inwardly to facilitate entry into a string of tubing or the like. The other end of the elastomeric sleeve is bonded to the outer surface of the metal part.

REFERENCES:
patent: 2927643 (1960-03-01), Dellinger
patent: 3053321 (1962-09-01), Ortloff

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