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:
Mar. 06, 2001
Filed:
Mar. 22, 1999
Applicant:
Inventors:
Ronald D. Mills, Yorba Linda, CA (US);
Larry J. McSweeney, South Point, OH (US);
Lawrence H. McSweeney, South Point, OH (US);
Assignee:
Other;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
E21C 3/5183 ;
U.S. Cl.
CPC ...
E21C 3/5183 ;
Abstract
A cutting tool configuration includes a cutting bit insert configured in the shape of an octagonal pyramid. The cutting bit insert includes a number of portions, each of which has faces which slope at different angles with respect to the longitudinal axis of the cutting bit insert. The cutting bit insert also includes a flange which is surrounded by a ring. The ring is softer than the cutting bit insert.