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:
Jul. 12, 1977
Filed:
Jul. 30, 1975
Applicant:
Inventors:
Assignee:
Toyota Jidosha Kogyo Kabushiki Kaisha, Toyota, JA;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
B60K / ;
U.S. Cl.
CPC ...
74869 ;
Abstract
An oil pressure control system for an automatic transmission system which includes a fluid torque converter, a transmission gear and friction engaging means adapted to be selectively supplied with line pressure for establishing a selected transmission engagement in said transmission gear, said friction engaging means being provided with a buffering accumulator which buffers its operating pressure, said accumulator comprising a fluid displacing element which is selectively supplied with different levels of oil pressure, preferably a torque converter pressure or a line pressure as a back pressure according to the operational condition of the oil pressure control system.