Seal assembly sequentially providing spaced seal zones

Details Seal assembly sequentially providing spaced seal zones Seal assembly sequentially providing spaced seal zones

1975-11-03

1977-01-11

Smith, Robert I.

Seal for a joint or juncture

Seal between relatively movable parts

Relatively rotatable radially extending sealing face member

277124, 285341, F16J 1508

Patent

active

040023451

ABSTRACT:
A seal assembly is adapted to provide a seal between a body member and an object, having a cylindrical outer surface, arranged to penetrate an opening provided through the body member. The seal assembly includes a lead ferrule having a frusto-conical first surface adapted to engage a body member circular shoulder edge, and having a frusto-conical second surface; an intermediate follower having one circular edge adapted to engage the lead ferrule second surface; a rear ferrule having a frusto-conical third surface adapted to engage another circular edge of the intermediate follower; and a compression cap adapted to exert a longitudinal force on the rear ferrule. When the compression cap is tightened, the seal assembly sequentially provides three longitudinally-spaced seal zones, and a seal between the body member and the object.

REFERENCES:
patent: 2075947 (1937-08-01), Kennedy
patent: 2772100 (1956-11-01), Kreissig et al.
patent: 3215457 (1965-11-01), Teeters
patent: 3893716 (1975-07-01), Moreiras
patent: 3895831 (1975-07-01), Fisher

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