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. 04, 2010
Filed:
Apr. 10, 2007
Brandon S. Stables, Bedford, PA (US);
Douglas E. Bise, Chillhowie, VA (US);
John G. Oldsen, Butler, PA (US);
Donald E. Keller, Bedford, PA (US);
David Scott Rife, Greensburg, PA (US);
John C. Stankus, Canonsburg, PA (US);
Chad A. Swope, Bedford, PA (US);
Brandon S. Stables, Bedford, PA (US);
Douglas E. Bise, Chillhowie, VA (US);
John G. Oldsen, Butler, PA (US);
Donald E. Keller, Bedford, PA (US);
David Scott Rife, Greensburg, PA (US);
John C. Stankus, Canonsburg, PA (US);
Chad A. Swope, Bedford, PA (US);
Kennametal, Inc., Latrobe, PA (US);
Jennmar Corporation, Pittsburgh, PA (US);
Abstract
A roof bit drill has a central shaft with a front end and a back end. The drill also has a base secured about the central shaft proximate to the front end, wherein the base has clearance channels extending axially therethrough. At least one cutting element is arranged on the base in a convex cutting pattern to permit loosened material to be evacuated. The roof bit drill may further include a drill depth locator to identify when the drill has been advanced within a mine roof to a predetermined depth. A method for using the roof drill bit is also disclosed herein.