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:
Oct. 04, 2016

Filed:

Apr. 06, 2010
Applicants:

Chad Allen Swope, Bedford, PA (US);

Seth Daniel Colvin, Bedford, PA (US);

Inventors:

Chad Allen Swope, Bedford, PA (US);

Seth Daniel Colvin, Bedford, PA (US);

Assignee:

KENNAMETAL INC., Latrobe, PA (US);

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
E21C 35/18 (2006.01); E02F 9/28 (2006.01); B28D 1/18 (2006.01); E21C 35/183 (2006.01);
U.S. Cl.
CPC ...
E02F 9/2866 (2013.01); B28D 1/186 (2013.01); E02F 9/2858 (2013.01); E21C 35/18 (2013.01); E21C 35/183 (2013.01);
Abstract

A rotatable cutting tool for use in impinging earth strata wherein the rotatable cutting tool comprises a cutting tool body and a hard tip affixed to the cutting tool body. The cutting tool body includes an axial forward end for receiving the hard tip and an axial rearward end, a head portion axially rearward of the axial forward end, a collar portion axially rearward of the head portion, and a shank portion axially rearward of the collar portion and axially forward of the axial rearward end. The head portion includes a plurality of elongated projections extending radially thereabout, each of the elongated projections including a first tapered side and a second tapered side. The first tapered side of each of the elongated projections adjoins the second tapered side of an adjacent elongated projection at a surface of the head portion.


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