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:
Jul. 02, 2002
Filed:
Feb. 24, 2000
Applicant:
Inventor:
Yoshimitsu Nagashima, Narita, JP;
Assignee:
Hitachi Tool Engineering, Ltd., Tokyo, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
B23C 5/02 ;
U.S. Cl.
CPC ...
B23C 5/02 ;
Abstract
An indexable type rotary cutting tool ( ) has at least one indexable inserts ( ). The indexable insert ( ) has a main cutting edge ( ) and an outer peripheral cutting edge ( ). The main cutting edge ( ) ranges from 3 to 35 degrees in cutting edge angle, and the main cutting edge ( ) is shaped like and arc or a substantially arc, and the outer peripheral cutting edge ( ) is shaped like a straight line, an arc, or a substantially arc so as to be back-tapered with respect to a center axis of the tool.