Patent
   D309317
Priority
Oct 15 1987
Filed
Apr 13 1988
Issued
Jul 17 1990
Expiry
Jul 17 2004
Assg.orig
Entity
unknown
10
8
n/a
The ornamental design for a ball end mill, as shown.

FIG. 1 is a front elevational view of a ball end mill showing our new design;

FIG. 2 is a right side elevational view;

FIG. 3 is a left side elevational view;

FIG. 4 is a rear elevational view;

FIG. 5 is a top plan view;

FIG. 6 is a bottom plan view; and,

FIG. 7 is a front and left side perspective view thereof.

Arai, Tatsuo, Okawa, Masayuki, Tsujimura, Osamu

Patent Priority Assignee Title
5039259, Jun 04 1990 Diamond edge milling tool
5772364, Dec 21 1993 NEW ISCAR LTD ; Iscar Ltd Chip cutting tool
5951213, Jun 19 1996 Walter AG Milling cutter, particularly for copying, and cutting insert therefor
9700947, Jun 27 2014 Kennametal Inc. Ballnose cutting tool and ballnose cutting insert
D553169, Aug 10 2005 SUMITOMO ELECTRIC HARDMETAL CORP. End mill
D555683, Aug 10 2005 SUMITOMO ELECTRIC HARDMETAL CORP. End mill
D556225, Aug 10 2005 SUMITOMO ELECTRIC HARDMETAL CORP. End mill
D747376, May 12 2014 SUMITOMO ELECTRIC HARDMETAL CORP. Cutting work body
D923675, Mar 11 2020 CONPROFE TECHNOLOGY GROUP CO ,LTD Head for end mill
ER7418,
Patent Priority Assignee Title
4252480, May 03 1979 Sumitomo Electric Industries, Ltd. Throw away insert and end mills
4265574, Nov 07 1978 Komet Prazisionswerkzeuge Robert Breuning GmbH Combined boring and milling tool
4527930, Mar 23 1983 Ball nose end cutting tool
4564321, May 13 1983 Fuji Seiko Limited End-milling cutter with drilling capability
4566827, Feb 22 1983 Ingersoll Cutting Tool Company Ballnose end mill and insert therefor
4585375, Feb 10 1984 CARBOLOY INC , A DE CORP Milling inserts
4588331, Sep 16 1982 DIJET INDUSTRIAL CO LTD Throwaway-type ball end mill and throwaway tip used in same
4618296, Sep 14 1983 GTE Valeron Corporation Cutting tool and insert therefor
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Executed onAssignorAssigneeConveyanceFrameReelDoc
Apr 05 1988TSUJIMURA, OSAMUMitsubishi Kinzoku Kabushiki KaishaASSIGNMENT OF ASSIGNORS INTEREST 0048790750 pdf
Apr 05 1988ARAI, TATSUOMitsubishi Kinzoku Kabushiki KaishaASSIGNMENT OF ASSIGNORS INTEREST 0048790750 pdf
Apr 05 1988OKAWA, MASAYUKIMitsubishi Kinzoku Kabushiki KaishaASSIGNMENT OF ASSIGNORS INTEREST 0048790750 pdf
Apr 13 1988Mitsubishi Kinzoku Kabushiki Kaisha(assignment on the face of the patent)
Dec 01 1990MITSUBISHI KINZOKU KABUSHIKI KAISHA 5-2, OTEMACHI 1-CHOME, CHIYODA-KU TOKYOMitsubishi Materials CorporationDOCUMENT IS BEING RECORDED AS A CHANGE OF NAME AND A CHANGE OF ADDRESS CHANGE OF NAME EFFECTIVE 12-01-90 AND CHANGE OF ADDRESS EFFECTIVE 11-28-88 0058100070 pdf
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