Seal for joint, and method of installing same seal

Details Seal for joint, and method of installing same seal Seal for joint, and method of installing same seal

1993-05-24

1994-03-01

Cuchlinski, Jr., William A.

Seal for a joint or juncture

Seal between relatively movable parts

Relatively rotatable radially extending sealing face member

277 72FM, 277228, 285925, F16J 1510

Patent

active

052900452

ABSTRACT:
The invention relates to a seal (1) for a joint comprising a cylindrical inner core layer (2) made of a water-unexpansible flexible material and having an internal opening (2a), and an outer coating layer (3) which is made of a water-expansible rubber. The outer coating layer (3) coats the inner core layer (2) and has penetrating openings (4) in the form of slits, pinholes or the like. The penetrating openings (4) extend to penetrating openings in the inner core layer (2) and communicate with the internal opening (2a) through the penetrating openings of the inner core layer (2).

REFERENCES:
patent: 2094691 (1937-10-01), Williams
patent: 2277286 (1942-03-01), Bechtner
patent: 3095619 (1963-07-01), Peterson
patent: 4449713 (1984-05-01), Ishido et al.
patent: 4546033 (1985-10-01), Tsuchimoto et al.
patent: 4558875 (1985-12-01), Yamaji et al.
patent: 4741542 (1988-03-01), Kimerly
patent: 4993722 (1991-02-01), Gundy
patent: 5044823 (1991-09-01), Burgess
patent: 5096206 (1992-03-01), Andre et al.
patent: 5172919 (1992-12-01), Takasaki et al.

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