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:
Sep. 09, 2003
Filed:
Mar. 22, 2002
Applicant:
Inventor:
Suguru Futamura, Toyokawa, JP;
Assignee:
Aisin Seiki Kabushiki Kaisha, Kariya, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
F16H 3/100 ;
U.S. Cl.
CPC ...
F16H 3/100 ;
Abstract
A hydraulic control apparatus includes a linear solenoid valve for outputting modulated pressure in response to electric current applied to the linear solenoid valve, a plurality of control valves outputting control pressure in response to the modulated pressure introduced from the linear solenoid valve, a shift valve for switching between the control valves to which is to be introduced the modulated pressure in response to hydraulic pressure supplied to the shift valve, and an ON-OFF solenoid valve for switching the supply of the hydraulic pressure to the shift valve in response to electric current applied to the ON-OFF solenoid valve.