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. 02, 1993
Filed:
Jun. 19, 1991
Applicant:
Inventors:
Hans Lindberg, Sandviken, SE;
Lars-Gunnar Wallstrom, Sandviken, SE;
Assignee:
Sandvik AB, Sandviken, SE;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
B23C / ;
U.S. Cl.
CPC ...
407 42 ; 407 54 ; 407113 ;
Abstract
A ball nose end mill comprises a body having a semi-spherical front surface and a plurality of indexable cutting inserts. A central one of the inserts is of generally triangular shape, and the additional inserts are of generally rectangular shape. The central insert has a generally convexly curved top surface, and the cutting edges thereof include main cutting edges which are convexly curved when the central insert is viewed from the side.