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:
May. 01, 2007
Filed:
Apr. 22, 2005
Applicant:
Cary D. Ritchey, Roaring Spring, PA (US);
Inventor:
Cary D. Ritchey, Roaring Spring, PA (US);
Assignee:
Kennametal Inc., Latrobe, PA (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
E21C 35/19 (2006.01);
U.S. Cl.
CPC ...
Abstract
A retainer for use in conjunction with a cutting bit wherein the cutting bit includes a shank that contains a recess therein. The retainer includes a generally cylindrical retainer body that has opposite ends and a central longitudinal axis. The retainer body has a generally arcuate shape that defines an arc between the opposite ends thereof. The retainer body further includes at least one ear that projects in a radial outward direction. The retainer body is made from a material that has a grain direction wherein the direction of the grain runs generally parallel to the central longitudinal axis of the retainer body.