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. 20, 2003
Filed:
Oct. 23, 2001
Applicant:
Inventors:
Robert McKinley, Akron, OH (US);
Joseph P. Nuzzi, Dover, OH (US);
Timothy G. Stokey, Dover, OH (US);
Assignee:
Allied Machine & Engineering Corp., Dover, OH (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
B23B 5/102 ;
U.S. Cl.
CPC ...
B23B 5/102 ;
Abstract
The present invention provides a novel drill insert having chipbreakers, or chip splitting grooves formed through the cutting surfaces. The cutting tool insert has a specialized geometry including a chip splitting groove formed at a negative rake angle. The chip splitting grooves increase the cutting efficiency of the tool while allowing the edge strength to be increased while also allowing higher feed rates.