Chuck assembly

Details Chuck assembly Chuck assembly

1994-11-14

1996-05-28

Bishop, Steven C.

Chucks or sockets

Expanding

Axially moving actuator

118503, 269 481, 279 221, 294 94, B05C 1302, B23B 3140

Patent

active

055203990

ABSTRACT:
There is disclosed a chuck assembly for engaging the inner surface of a hollow substrate comprising: (a) a fluid impermeable elastic membrane including a substrate engaging portion, wherein the inner surface of the membrane defines an interior space; and (b) a plurality of radially movable members at least partially disposed in the interior space, wherein the membrane is dimensioned to provide a radially inward force on the members, wherein the members in a radially expanded position push the substrate engaging portion of the membrane against the substrate inner surface, and wherein the peripheral dimension of the elastic membrane decreases when the members are in a radially contracted position.

REFERENCES:
patent: 581209 (1897-04-01), Hughes
patent: 3747945 (1973-07-01), Bailiff
patent: 3777875 (1973-12-01), Sobran
patent: 3909021 (1975-09-01), Morawski et al.
patent: 3945486 (1976-03-01), Cooper
patent: 3997176 (1976-12-01), Wyckoff et al.
patent: 4680246 (1987-07-01), Aoki et al.
patent: 4783108 (1988-11-01), Fukuyama et al.

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