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:
Aug. 20, 2013
Filed:
Feb. 22, 2012
Kazuaki Aota, Sagamihara, JP;
Yukiyoshi Inuta, Isehara, JP;
Akihiro Yamamoto, Hiratsuka, JP;
Takayuki Okuda, Atsugi, JP;
Kazuo Oguri, Hiroshima, JP;
Katsunori Yamashita, Shizuoka, JP;
Kazuaki Aota, Sagamihara, JP;
Yukiyoshi Inuta, Isehara, JP;
Akihiro Yamamoto, Hiratsuka, JP;
Takayuki Okuda, Atsugi, JP;
Kazuo Oguri, Hiroshima, JP;
Katsunori Yamashita, Shizuoka, JP;
Jatco Ltd, Fuji-shi, JP;
Abstract
An automatic transmission includes: a first planetary gearset including a first sun gear, a first ring gear, and a first pinion carrier; a second planetary gearset including a second sun gear, a second ring gear, and a second pinion carrier; an input shaft constantly coupled to the first sun gear; an output shaft constantly coupled to the second pinion carrier; a first rotary member constantly connecting the first ring gear and the second sun gear; a first friction element selectively connecting the first sun gear and the second ring gear; a second friction element selectively connecting the first pinion carrier and the second ring gear; a third friction element selectively interrupting a rotation of the first pinion carrier; and a fourth friction element selectively interrupting a rotation of the first rotary member, the automatic transmission attaining first to fourth forward speeds and one reverse speed.