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:
Apr. 03, 1984
Filed:
Oct. 28, 1981
Wataru Ishimaru, Zushi, JP;
Kazuyoshi Fujioka, Tokyo, JP;
Nissan Motor Co., Ltd., Yokohama, JP;
Abstract
A clutch drum for an automatic transmission features a large diameter portion in which a plurality of first slots define castle-like projections about one end thereon and a second set of slots which originate in the projections near the tops thereof and which extend to and terminate in an essentially frusto-conical portion which interconnects the large diameter portion and a small diameter portion containing a piston therein. The first slots serve to mount clutch discs within the drum while the second slots mount discs about the drum. The relatively wide castle-like projections allow the production of the drum from relatively light gauge sheet metal, which has adequate structural rigidity and a reduced maximum diameter.