Substantially zero leakage path sealing assembly with expander v

Details Substantially zero leakage path sealing assembly with expander v Substantially zero leakage path sealing assembly with expander v

1990-06-18

1993-03-30

Cuchlinski, Jr., William A.

Seal for a joint or juncture

Seal between relatively movable parts

Relatively rotatable radially extending sealing face member

277165, 277216, 277188R, F16J 1546

Patent

active

051977460

ABSTRACT:
This invention relates to a fliud sealing mechanism for the inside diameter and/or the outside diameter of a piston-cylinder arrangement. This device results in substantially zero seal leakage path with low differential seal pressure required using only one piston ring, one ring groove, and very loose dimensional tolerances required on both the ring and related groove. This yields an inexpensive more positive seal for fluid piston-cylinder configuration used in industrial, commercial, and personal use. This invention further includes an expander void within the piston wall to permit use of different elastomers.

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