Low friction drag seals

Details Low friction drag seals Low friction drag seals

1979-10-30

1981-04-21

Smith, Robert I.

Seal for a joint or juncture

Seal between relatively movable parts

Relatively rotatable radially extending sealing face member

277205, F16J 1532

Patent

active

042629152

ABSTRACT:
A low friction drag seal is provided for use between a housing and a linearly movable cylindrical member subject to fluid pressure in the form of an annular chamber surrounding the cylindrical member in one of the housing and cylindrical member, a generally right triangular cross section elastomer ring in said annular chamber surrounding said cylindrical member and in contact with a relatively movable surface on one of the cylinder and housing at an apex of said elastomer ring and a generally rigid back up ring having an inclined surface extending away from said relatively movable surface and in contact with the hypotenuse of the generally triangular member.

REFERENCES:
patent: 2639198 (1953-05-01), Kirkham
patent: 3003799 (1961-10-01), Marchionda et al.
patent: 3477731 (1969-11-01), Workman
patent: 4087098 (1978-05-01), Alley
patent: 4143586 (1979-03-01), Zittiug

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