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:
Dec. 22, 1987
Filed:
Sep. 23, 1985
Applicant:
Inventors:
Yoichi Hayakawa, Toyoake, JP;
Masao Kawai, Chiryu, JP;
Seiichi Nishikawa, Toyokawa, JP;
Kagenori Fukumura, Toyota, JP;
Assignee:
Aisin Warner Limited, , JP;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
B60K / ;
U.S. Cl.
CPC ...
74869 ; 74867 ; 7475 / ;
Abstract
A hydraulic control system for an automatic transmission, including a pressure source, a regulator valve for regulating the oil pressure from the source, a first hydraulic servo for setting the transmission in a high speed position upon receipt of output oil pressure of the pressure regulator valve, and a second hydraulic servo for setting the transmission in a low speed position upon receipt of the output oil pressure, wherein the hydraulic control system comprises: