Sealed chuck assembly
Number of patents in Portfolio can not be more than 2000
United States of America Patent
Stats
-
Jun 13, 2000
Grant Date -
N/A
app pub date -
Feb 11, 1998
filing date -
Feb 11, 1998
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
A sealed chuck assembly having a hollow cylindrical chuck body including a radially disposed front wall and a plurality of master jaws supported on the chuck body to move radially within openings in the front wall and relative to the chuck body in response to operation of a jaw actuating mechanism contained within the chuck body. A canopy plate attached to the chuck body overlies the front wall and has apertures therethrough in general registry with the openings. The master jaws are exposed within the apertures to facilitate attachment of a top jaw to each master jaw. Annular sealing members disposed between the rear surface of the canopy plate and forwardly facing surfaces on the master jaws seal each of the openings in all positions of the master jaws relative to the chuck body. Top jaws may be secured to and removed from the master jaws without disturbing the sealing members so that the openings in the front wall of the chuck body remain in sealed condition at all times.
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