Self-arresting sealing ring

Details Self-arresting sealing ring Self-arresting sealing ring

1977-03-07

1978-09-05

Smith, Robert I.

Seal for a joint or juncture

Seal between relatively movable parts

Relatively rotatable radially extending sealing face member

277206A, 277DIG10, F16J 1518

Patent

active

041114418

ABSTRACT:
A sealing ring for a piston moving within a cylinder made up of an elastomeric part and a stiff support part, the ring being x-shaped in cross section, two legs of the elastomeric part, of the same radius, constituting the dynamic seal and a third leg constituting the static seal. The fourth leg is made up by the support part and projects radially beyond the third leg so as to lock into a corresponding recess is the piston or cylinder. An indentation about the circumference of the fourth leg facilitates its resilient flexing to make the initial lock. Advantageously the axial body of the seal between the legs is substantially cylindrical.

REFERENCES:
patent: 2587405 (1952-02-01), Stevens et al.
patent: 3306620 (1967-02-01), Taschenberg
patent: 3338584 (1967-08-01), Nakanishi et al.
patent: 3601417 (1971-08-01), Szepesvary
patent: 4026563 (1977-05-01), Bainard

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