Double wiper seal arrangement

Details Double wiper seal arrangement Double wiper seal arrangement

1987-01-30

1987-12-01

Ward, Robert S.

Seal for a joint or juncture

Seal between relatively movable parts

Relatively rotatable radially extending sealing face member

277142, 277152, F16J 1532

Patent

active

047099321

ABSTRACT:
In a double wiper arrangement, a wiper ring (5) and a stressing ring (6) are arranged in a groove (4) of a width which is only little larger than the width of the wiper ring (5). The stressing ring (6) loads the wiper ring (5) through a shoulder and an inclined circumferential surface (14) in such a manner that the wiper ring (5) is retained in contact with the flank (17) of the groove (4) on the high-pressure end and that a contact pressure is produced along a flat surface portion (7) which pressure diminishes at least nearly linearly along the said flat surface portion, starting from its inner end, but which is still defined at the outer end thereof.

REFERENCES:
patent: 3057630 (1962-10-01), Sneed
patent: 3549154 (1970-12-01), Jones
patent: 4141562 (1979-02-01), Wu
patent: 4155557 (1979-05-01), Grebert
patent: 4449718 (1984-05-01), Muller
"Technica", No. 11, 1964, pp. 848 to 852, and 912 to 916, German Periodical.

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