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.
Patent No.:
Date of Patent:
May. 14, 1991
Filed:
Apr. 02, 1990
Valdas S Ramunas, Euclid, OH (US);
Kennametal Inc., Latrobe, PA (US);
Abstract
A top jaw assembly is adapted to be mounted on the master jaw of a chuck and includes a replaceable work holding pad. The top jaw assembly includes a top jaw formed with a first support surface lying in an axial plane and a second support surface bored concentric with the central axis of the chuck. An arcuate shape work holding pad having concentric inner and outer surfaces is provided for gripping the work piece. The outer surface is adapted to seat against the second support surface of the top jaw assembly and the inner surface is adapted to grip the work piece. Clamping means are provided which include a locking element adapted to engage the work holding pad. The locking element urges the work holding pad downwardly against the first support surface of the top jaw to axially locate the pad and rearwardly against the second support surface to maintain the inner surface of the pad concentric with the central axis.