Low friction fluid seal device with hinge and roll structure

Details Low friction fluid seal device with hinge and roll structure Low friction fluid seal device with hinge and roll structure

1995-12-15

1997-03-04

Cummings, Scott

Seal for a joint or juncture

Seal between relatively movable parts

Relatively rotatable radially extending sealing face member

277176, 277177, 277188R, 277215, F16J 1532, F16J 1548

Patent

active

056071663

ABSTRACT:
A fluid seal device comprising an annular body having an inner side, an outer side, a closed end face and an at least partly open end face wherein the at least partly open end face defines a first radial sealing area protruding outwardly from the outer side and a second radial sealing area protruding outwardly from the inner side of the annular body so that the plane defined by the first radial sealing area is spaced apart a further distance from the closed end of the annular body than the plane defined by the second radial sealing area. The at least partly open end face of the fluid seal device defining the first and second radial sealing areas is formed of a less rigid elastomeric material than the remaining portion of the annular body of the fluid seal device so that the radius of the second radial sealing area will tend to hinge and roll and to thereby maintain a generally constant resistance during movement of an element in contact therewith.

REFERENCES:
patent: 3554569 (1971-01-01), Gorman
patent: 3642293 (1972-02-01), Woodling
patent: 5149107 (1992-09-01), Maringer et al.
patent: 5377999 (1995-01-01), Gorman
patent: 5509670 (1996-04-01), Wheeler

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