Sealing means with central elastomeric member

Details Sealing means with central elastomeric member Sealing means with central elastomeric member

1986-09-17

1987-10-13

Ward, Robert S.

Seal for a joint or juncture

Seal between relatively movable parts

Relatively rotatable radially extending sealing face member

277171, 277228, F16J 1518

Patent

active

046993878

ABSTRACT:
A three-member compound sealing means having a central elastomeric O-ring actuating plastic surrounding members on both sides. Primary seals are formed by the plastic members. These seals lie on both sides of the secondary seals formed by the elastomeric O-ring, thus protecting the O-ring from the corrosive effects of chemicals.

REFERENCES:
patent: 2200151 (1940-05-01), Burkhardt
patent: 2739855 (1956-03-01), Bruning
patent: 2767768 (1956-10-01), Jelinek
patent: 3279805 (1966-10-01), Quinson
patent: 3510140 (1970-05-01), Hermann
patent: 4406467 (1983-09-01), Burger et al.
Advertisement from Aerospace Engineering, date unknown, p. 34, for Greene, Tweed & Co.
P. 19, Mechanical Engineering, May, 1986.
Shamban Standard Aerospace Part Number Quick Reference Guide, 13 pages, 1984.
Microdot PolySeal advertisement, source unknown.
Microdot PolySeal brochure, 6 pages.
Chapter 13 of NASA SP-5019, Contributions to Advanced Valve Technology: A Survey, pp. 133-141, author and date unknown.

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