U.S. patents available from 1976 to present.
U.S. patent applications available from 2005 to present.

Chuck assembly

Patent 4616538 Issued on October 14, 1986. Estimated Expiration Date: Icon_subject April 27, 2004. Estimated Expiration Date is calculated based on simple USPTO term provisions. It does not account for terminal disclaimers, term adjustments, failure to pay maintenance fees, or other factors which might affect the term of a patent.

Patent References

1412170

1906424

3076662

3684304

Crankshaft machine stock and chuck apparatus
Patent #: 4044638
Issued on: 08/30/1977
Inventor: Heffron ,   et al.

Chuck
Patent #: 4121848
Issued on: 10/24/1978
Inventor: Morawski

Automatic chuck for workpieces Patent #: 4482162
Issued on: 11/13/1984
Inventor: Anegawa

Inventor

Assignee

Application

No. 06/604921 filed on 04/27/1984

US Classes:

82/165, WORK DRIVER279/121, Wedge actuated279/123, Jaws279/4.12Fluid pressure moves jaws via mechanical connection

Examiners

Primary: Husar, Francis S.
Assistant: Kearns, Jerry

Attorney, Agent or Firm

International Classes

B23B 31/177 (20060101)
B23B 31/12 (20060101)
B23B 33/00 (20060101)

Abstract

An improved chuck assembly for a lathe comprises a housing member serving as a base, first holding means movably connected to the base for selectively radially gripping the side surface of a workpiece, and second holding means connected to the base for axially engaging an end surface of such workpiece. The second holding means is located generally centrally of the first holding means, the first holding means being movable both radially and longitudinally to clear the end of the workpiece without removal of the chuck.

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