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:
Dec. 20, 1994
Filed:
Apr. 26, 1993
Applicant:
Inventors:
Leroy Den Besten, deceased, late of Valatie, NY (US);
Wayne H Beach, Roaring Spring, PA (US);
Assignee:
Kennametal Inc., Latrobe, PA (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
E21C / ;
U.S. Cl.
CPC ...
299 86 ; 299 91 ;
Abstract
A cutting bit including a conical nose and an integral depending cylindrical shank. The conical nose includes a tip having a hard wear resistant insert and a flange positioned between the tip and the shank and having a diameter greater than the shank. The flange has a planar underside including at least one undercut extending radially inward from the exterior peripheral surface of the flange to provide in cooperation with the face of a cutting bit block a resistance surface for insertion of a tine of a cutting bit removal tool.