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. 01, 1986
Filed:
Sep. 27, 1983
Aisin Seiki Kabushiki Kaisha, Aichi, JP;
Abstract
An inching control apparatus comprising a hydraulic pressure source, a plurality of clutches and, in a hydraulic circuit connecting the clutches to the hydraulic pressure source, a pressure regulating valve, an inching valve which receives output pressure from the pressure regulating valve for delivering inching control pressure, and a selector valve which receives control pressure from the inching valve for selecting engaging and disengaging the frictional engaging means. The inching valve delivers the output pressure from the pressure regulating valve directly when an inching pedal is not depressed by the driver's foot, and delivers a control pressure, which diminishes as the amount of pedal depression increases, when said amount of depression exceeds a predetermined amount. The inching valve controls the output pressure from the pressure regulating valve by operating an inching spool which is pushed through a first spring by an inching rod operatively associated with the pedal and biased by a second spring against the first spring, and which is equipped with first and second pressure-receiving portions operating against one another.