One Piece rear seal for servomotor

Details One Piece rear seal for servomotor One Piece rear seal for servomotor

1988-08-31

1990-02-06

Garrett, Robert E.

Expansible chamber devices

With guide or seal on cylinder end portion for piston or...

913691, 913692, 91376R, 277152, F16J 1518

Patent

active

048980811

ABSTRACT:
A one piece seal (42) having a resilient body (100) with a peripheral surface (102) on which first and second ribs (104 and 106) engage a housing (19) to establish static seals to prevent environmental air from entering a control chamber (22) and an inner surface (114) with first and second dynamic seals (120 and 128) located adjacent first and second bearing lands (116 and 118). The first and second dynamic seals (120 and 128) which surround a movable projection (38) flex to allow the projection (38) relatively radial movement while the bearing lands (116 and 118) retain the projection (38) in axial alignment during lateral movement of the wall (24).

REFERENCES:
patent: 3102453 (1963-09-01), Brooks et al.
patent: 3172335 (1965-03-01), Brooks et al.
patent: 4043251 (1977-08-01), Ohmi
patent: 4622882 (1986-11-01), Bischoff et al.

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