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:
Jan. 13, 2009
Filed:
Nov. 13, 2006
Applicants:
Eric P. Helsel, New Enterprise, PA (US);
Stephen P. Stiffler, New Enterprise, PA (US);
Inventors:
Eric P. Helsel, New Enterprise, PA (US);
Stephen P. Stiffler, New Enterprise, PA (US);
Assignee:
Kennametal Inc., Latrobe, PA (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
E21C 35/18 (2006.01);
U.S. Cl.
CPC ...
Abstract
An edge cutter bit assembly for use in conjunction with a rotatable drum having an edge. The edge cutter bit assembly includes a holder that includes a plurality of bores wherein each bores carries a chisel cutter bit so that the chisel cutter bit is non-rotatable. The holder is oriented with respect to the drum so that at least a portion of each one of the cutter bits extends past the edge of the drum.