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:
Jan. 21, 1992
Filed:
Sep. 06, 1990
Applicant:
Inventor:
Hiroyuki Imamura, Shizuoka, JP;
Assignee:
Jatco Corporation, , JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
F16H / ;
U.S. Cl.
CPC ...
192-33 ;
Abstract
A spool of a lock-up control valve is arranged to have equal pressure differential areas exposed to the apply and release pressures applied to the apply and release chambers of the lock-up clutch. The movement of the spool is determined by changes in a single variable level pressure and independent of the apply pressure.