Packer cup

Seal for a joint or juncture – Seal for well apparatus – Axially facing packing cup

Reexamination Certificate

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Details

C166S202000

Reexamination Certificate

active

07959155

ABSTRACT:
A packer cup for sealing the interior of a pipe under pressure includes a first region of relatively soft material and a second region of relatively hard material. The region of the relatively softer material would begin at the lip of the cup and extend for at least one third the length of the cup up to the entire length of the cup.

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patent: 2005/0133218 (2005-06-01), Plomp

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