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:
Sep. 03, 2013
Filed:
Apr. 07, 2010
Eric P. Helsel, New Enterprise, PA (US);
Stephen Stiffler, New Enterprise, PA (US);
Donald Keller, Bedford, PA (US);
Don Rowlett, Bedford, PA (US);
Eric P. Helsel, New Enterprise, PA (US);
Stephen Stiffler, New Enterprise, PA (US);
Donald Keller, Bedford, PA (US);
Don Rowlett, Bedford, PA (US);
Kennametal Inc., Latrobe, PA (US);
Abstract
A cutting bit retention assembly () that includes a cutting bit holder (), which receives a cutting bit () and has shank () that extends into a bore () in a support (). The shank section () of the cutting bit holder () presents a surface () defined by a notch () that selectively cooperates with a retention pin (). A transverse bore () in the support () carries the retention pin (). The retention pin () is selectively movable to any one of several positions. One position is a non-retaining position wherein the retention pin () does not engage the notch surface (). Another position is a retaining position in which the retention pin () engages the notch surface () to urge the cutting bit holder into the cutting bit holder bore (). Still another position is an ejecting position in which the retention pin () engages the notch surface () to urge the cutting bit holder () out of the cutting bit holder bore ().