Chucks or sockets – Socket type – Obliquely guided reciprocating jaws
Reexamination Certificate
2005-05-31
2005-05-31
Howell, Daniel W. (Department: 3722)
Chucks or sockets
Socket type
Obliquely guided reciprocating jaws
C279S902000
Reexamination Certificate
active
06899343
ABSTRACT:
A manually tightened chuck, having a hollow chuck body member, provided with three inclined bores along periphery with same interval in chuck body member. A jaw is installed in each inclined bore slidably. A nut is sheathed in the middle of chuck body member, and the nut is interconnected with each jaw through threads. A front sleeve is provided at the front end of the chuck body member, and a rear sleeve is provided at the rear end. The nut is of duplex-half type structure, on its peripheral surface a nut sleeve is sheathed, between the nut sleeve and the nut is of stationary fit. The profile of said nut sleeve is a polygon, a polygonal hole fitted with said outer profile is formed correspondingly in the inner part of said front sleeve. The machining of both front and nut sleeves of the chuck is more simple, and both front and nut sleeves are more stable after installation, during operation of the chuck no radial jitter of both front and nut sleeves is created.
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Ladas & Parry LLP
Talbot Michael W.
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