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:
Jun. 22, 1993
Filed:
Mar. 06, 1992
Masayuki Okawa, Ibaraki, JP;
Mitsubishi Materials Corporation, Tokyo, JP;
Abstract
A ball end mill is disclosed which has an end mill body, an indexable cutting insert, a clamp screw and an engaging portion. The end mill body includes an axis of rotation therethrough and an insert receiving recess formed in a forward end portion thereof. The insert receiving recess has a concavely curved bearing wall. The insert is generally of an elliptical shape having a pair of convexly curved side faces, and is received in the recess with one of the side faces being held in engagement with the bearing wall. The clamp screw releasably secures the cutting insert to the insert receiving recess. The engaging portion is provided on the end mill body so as to be adjacent to the insert receiving recess, and is adapted to be held in engagement with the other side face of the insert.