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. 09, 1976
Filed:
Oct. 15, 1974
Applicant:
Inventors:
Nobutaka Maeda, Hiroshima, JA;
Hidehiko Tsukamoto, Saiki, JA;
Assignee:
Mitsubishi Jukogyo Kabushiki Kaisha, Tokyo, JA;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
B21H / ;
U.S. Cl.
CPC ...
72 71 ;
Abstract
Cutter dies for cross rolling machines, each of which dies consisting of a shaping surface and a finishing surface, the width of the shaping surface being increasingly smaller and its height larger towards the end portions of the shaping surface, characterized in that the width of the shaping surface is further increased in the end portions of the cutter dies from a preferred position in an angle substantially less than 15.degree. from the end portions of the cutter dies.