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. 05, 1991
Filed:
Mar. 15, 1989
Applicant:
Inventors:
Kazuyoshi Fujioka, Atsugi, JP;
Kaoru Shori, Fuji, JP;
Assignee:
Nissan Motor Co., Ltd., Kanagawa, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
F16D / ;
U.S. Cl.
CPC ...
192 702 ; 72348 ; 1921 / ;
Abstract
A clutch drum includes a cylindrical drum body having a spline portion consisting of plural extruded angles and extruded channels formed by pressing, and plural pressed-out portions formed at the spline portion, one side wall of the pressed-out portions having a continuous shape without any rupture, the other side wall of the pressed-out portions being formed by half blanking of the clutch drum body so as to stop a snap ring threat.