The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.

The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.

Date of Patent:
Dec. 14, 1993

Filed:

Aug. 12, 1992
Applicant:
Inventors:

Randy R Welch, Hudson, IA (US);

Norman L Fernau, Waterloo, IA (US);

Assignee:

Deere & Company, Moline, IL (US);

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
B23B / ; B23B / ;
U.S. Cl.
CPC ...
279123 ; 279106 ; 279152 ; 279137 ;
Abstract

A chuck jaw is provided for holding an irregularly-shaped object such as a differential housing on a lathe. A chuck jaw body which is pivotally mounted to each chuck mounting block to pivot about an axis substantially tangential to a cylinder defined around the turning radius of the lathe. A first end of the chuck jaw body extends radially further in than a second end of the chuck jaw body, so that the first end can engage a radially smaller part of the irregular object, while the second end engages a radially larger part. Springs and adjustment screws preferably are provided to allow adjustment of the initial angle of the first and second ends.


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