Seal arrangement

Details Seal arrangement Seal arrangement

1998-08-28

2000-08-22

Knight, Anthony

Seal for a joint or juncture

Seal between relatively movable parts

Piston ring or piston ring expander or seat therefor

277489, 277491, 277448, 277435, F16J 1532

Patent

active

061059706

ABSTRACT:
A sealing arrangement for establishing a seal between two machine elements, such as a rod or piston undergoing axial motion within a housing. A rod or piston seal is arranged in a groove of the second machine element, which typically is the housing of the rod or piston. The groove is open in the direction of the first machine element, and contains a seal ring and a prestress ring made of elastomeric material. The seal ring has an essentially T-shaped cross-section and touches the surface of the first machine element which is to be sealed with the sealing surface of its radial ridge, forming a seal. The prestress ring is arranged between the base of the groove and the axial ridge of the seal ring, under elastic prestress. The transition from the faces of the radial ridge to the sealing surface is rounded.

REFERENCES:
patent: 2893795 (1959-01-01), Dooling
patent: 5092610 (1992-03-01), Dunham et al.
patent: 5156410 (1992-10-01), Hom et al.
patent: 5172921 (1992-12-01), Stenlund
patent: 5291974 (1994-03-01), Bianchi
patent: 5433452 (1995-07-01), Edlund et al.

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