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:
Feb. 03, 1981
Filed:
Apr. 05, 1977
Toshinori Matsumoto, Yokohama, JP;
Tamio Kawamoto, Sagamihara, JP;
Abstract
A vehicle transmission with an automatic clutch is disclosed in which for gear shifting the clutch is disengaged with the assistance of a vacuum of a source of vacuum, via a control valve having a solenoid actuated clutch release valve and a clutch servo. Disengagement of the clutch is carried out when a gear shift lever is manipulated with an engine accelerator released. Reengagement of the clutch when the vehicle is in motion commences as soon as the gear shift lever is released and/or the accelerator is depressed. A safeguard is provided so that reengagement of the clutch when the vehicle is at a standstill will not commence as long as the gear shift lever is touched.