Dynamic packing ring seal system

Details Dynamic packing ring seal system Dynamic packing ring seal system

1987-10-19

1988-10-11

Ward, Robert S.

Seal for a joint or juncture

Seal between relatively movable parts

Relatively rotatable radially extending sealing face member

277 84, 277165, 277184, 251315, F16J 1524, F16J 1534

Patent

active

047765992

ABSTRACT:
A seal system for closing the running clearance between two relatively rotating structural members, wherein an elastomeric annular packing ring has a first annular portion pressed into an undersized annular locking channel, formed by and within one structural member, so as to retain the ring immovably therein, and thus to distend the remaining second annular portion of the ring, which is now dynamically and internally biased, across an open working chamber into impingement upon the smooth annular sealing surface of the opposing structural member to achieve an activated seal which is operable over large relative excursions of the structural members.

REFERENCES:
patent: 2147771 (1939-02-01), Hathaway
patent: 2647778 (1953-08-01), Shields
patent: 3269692 (1966-08-01), Shafer
patent: 3575431 (1971-04-01), Bryant
patent: 3661197 (1972-05-01), Peterson
patent: 3862762 (1975-01-01), Millsap
patent: 3944306 (1976-03-01), Neilson
patent: 4059280 (1977-11-01), Eastwood

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