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. 07, 1987
Filed:
May. 09, 1984
Masao Nishikawa, Tokyo, JP;
Kouji Yamaguchi, Tokorozawa, JP;
Yoshimi Sakurai, Tanashi, JP;
Takashi Aoki, Fujimi, JP;
Honda Giken Kogyo Kabushiki Kaisha, Tokyo, JP;
Abstract
A direct coupling clutch controller interposed between a direct coupling clutch in a torque converter of an automatic transmission and a hydraulic pressure source for temporarily disconnecting the direct coupling clutch whenever the transmission shifts gears. The controller is particularly suitable for transmissions having four or more gear stages, and includes a valve having a first and a second switching position where the pressure source is connected to the clutch. As the valve moves between the positions, the connection is interrupted. The valve is pilot operated by the transmission controller.