Chuck assembly with a sealing member

Details Chuck assembly with a sealing member Chuck assembly with a sealing member

2005-11-29

2005-11-29

Ashley, Boyer D. (Department: 3722)

Chucks or sockets

With fluid-pressure actuator

Socket type

C279S004090, C279S137000

Reexamination Certificate

active

06969073

ABSTRACT:
A chuck assembly includes a housing formed with an hydraulic fluid inlet, a sleeve mounted in the housing and formed with an annular groove, a shaft mounted rotatably in the sleeve and formed with a first fluid passage, a chuck unit mounted in the shaft, a piston subdividing a chamber between the chuck unit and the shaft into first and second compartments, and an annular elastic sealing member disposed in the annular groove and formed with a second fluid passage for passage of a hydraulic fluid from a supply through the hydraulic fluid inlet and the first fluid passage to the first compartment.

REFERENCES:
patent: 3615100 (1971-10-01), Banner
patent: 4032162 (1977-06-01), Flinchbaugh
patent: 4094521 (1978-06-01), Piotrowski
patent: 4537410 (1985-08-01), Hiestand
patent: 5192086 (1993-03-01), Bucks
patent: 5302062 (1994-04-01), Baba et al.
patent: 6173971 (2001-01-01), Shen
patent: 6497417 (2002-12-01), Wu
patent: 2005/0040608 (2005-02-01), Wu

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