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:
Jul. 27, 1999
Filed:
Apr. 16, 1997
Applicant:
Inventor:
Daniel C Sheirer, Bedford, PA (US);
Assignee:
Kennametal Inc., Latrobe, PA (US);
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
E21B / ; E21B / ; B23B / ; F16L / ;
U.S. Cl.
CPC ...
175417 ; 175320 ; 175415 ; 279102 ; 285344 ;
Abstract
A rotatable cutting bit-chuck assembly wherein the cutting bit has an axially forward end an axially rearward end with at least one cutting insert at the axially forward end. The cutting bit contains a cavity defined by a cavity wall. The chuck has an axially forward end and an axially rearward end. Upon assembling the cutting bit on the chuck, the cavity of the cutting bit receives the axially forward end of the chuck wherein there is a variable resistance retention member between the chuck and the cavity wall.