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. 16, 1991
Filed:
Nov. 21, 1988
Applicant:
Inventors:
Takao Yoshida, Kanagawa, JP;
Toshio Ikeda, Kanagawa, JP;
Takhiro Douke, Kanagawa, JP;
Toshio Eki, Kanagawa, JP;
Assignee:
Toto, Ltd., Fukuoka, JP;
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
H01H / ;
U.S. Cl.
CPC ...
361187 ; 361160 ;
Abstract
A solenoid valve control circuit for operatively connecting a battery to a solenoid to energize the solenoid to actuate a valve includes a coulomb controlling circuit for controllably supplying electric charge to the solenoid in accordance with predetermined criteria.