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:
Jun. 28, 1994
Filed:
Dec. 17, 1992
Applicant:
Inventors:
Ted R Massa, Latrobe, PA (US);
John J Prizzi, Greensburg, PA (US);
Assignee:
Kennametal Inc., Latrobe, PA (US);
Attorneys:
Primary Examiner:
Int. Cl.
CPC ...
F21C / ;
U.S. Cl.
CPC ...
299 86 ; 175427 ;
Abstract
A cutting tool for use in excavating an earth formation comprising an elongate tool body having a hard tip being affixed to the forward end thereof. The hard tip has a plurality of integral, coaxial sections including an integral ribbed section which presents a plurality of longitudinal ribs about the circumference thereof. The tip further includes an integral lobed base section which presents a plurality of radially extending lobes. An integral transition region provides a transition between the ribbed section and the base section.