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:
Dec. 05, 1989
Filed:
Dec. 01, 1987
Masakatsu Miura, Kariya, JP;
Mashiko Ando, Okazaki, JP;
Aisin-Warner Kabushiki Kaisha, Anjo, JP;
Abstract
An automatic transmission having Ravigneaux Type planetary gear unit comprises a first and a second sun gear, a long pinion meshing the first sun gear, a short pinion meashing the long pinion and the second sun gear, a carrier supporting the long pinion and the short pinion and a ring gear meshing the long pinion; the input shaft connects the second sun gear through a first clutch, and connects the first sun gear through a second clutch; the output member is located in the center of the automatic transmission mechanism so that the output member encloses the input shaft; in case of three speed transmission mechanism, a first clutch is located axially and extreme outside the transmission mechanism; in case of four speed transmission mechanism a third clutch is located axially and outside the first clutch.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile