Mechanical seal

Details Mechanical seal Mechanical seal

2009-05-04

2011-10-11

Pickard, Alison (Department: 3674)

Seal for a joint or juncture

Seal between relatively movable parts

Relatively rotatable radially extending sealing face member

C277S373000, C277S408000

Reexamination Certificate

active

08033549

ABSTRACT:
A rotating assembly of a mechanical seal includes a retainer, a pair of compression rings, a shaft sleeve, a first rotating seal ring and a second rotating seal ring. The retainer includes a plurality of spring members and a plurality of slide legs longitudinally extended in opposite directions to define limiting spaces where the compression rings are correspondingly restricted. The compression rings are located at opposite sides of the retainer between which the spring members are arranged. In assembling, the retainer, the compression rings, the first rotating seal ring and the second rotating seal ring are assembled on the shaft sleeve. Spring forces of the spring members can actuate the compression rings to push the first rotating seal ring and the second rotating seal ring in the opposite directions.

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