Pressure relieving sealing rings for rotating elements

Details Pressure relieving sealing rings for rotating elements Pressure relieving sealing rings for rotating elements

1986-07-25

1987-09-22

Ward, Robert S.

Seal for a joint or juncture

Seal between relatively movable parts

Relatively rotatable radially extending sealing face member

277 50, 277 58, 277 84, 277152, F16J 1532, F16J 1548

Patent

active

046950621

ABSTRACT:
An arrangement for sealing a space having therein rotating means, such as a roller bearing, is provided with sealing rings that are spaced along a rotational axis. The inner annular sealing edges of the sealing rings are biased to engage and seal in against seats that are moving relative to the sealing edges. The seats and sealing edges are disposed so that one or the other of the latter lifts off of its seat to permit pressure within the space to equalize automatically with ambient pressure whether the latter rises or falls relative to pressure within the space.

REFERENCES:
patent: 3438639 (1969-04-01), Paulsen
patent: 4325591 (1982-04-01), Otto
patent: 4428630 (1984-01-01), Folger et al.
patent: 4476772 (1984-10-01), Gorman et al.

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