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:
Jun. 19, 1990
Filed:
Dec. 01, 1987
Masakatsu Miura, Kariya, JP;
Masahiko Ando, Okazaki, JP;
Aisin-Warner Kabushiki Kaisha, Anjo, JP;
Abstract
An automatic transmission comprising a single planetary gear unit and a dual planetary gear unit has an output member located in its center so that the output member encloses an input shaft. In the case of a three speed automatic transmission mechanism, a first clutch located around a ring gear of the single planetary gear unit connects the input shaft to this ring gear. In the case of a four speed automatic transmission mechanism, a third clutch which actuates overdrive is additionally located axially outside the first clutch for connecting the input member to a ring gear of the dual planetary gear unit. A sun gear common to both planetary units is connected to the input shaft by a second clutch. This clutch has a drum portion upon which a band may act to brake the sun gear.