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:
May. 29, 1990
Filed:
Jul. 19, 1988
Tsuyoshi Ando, Sano, JP;
Nakayasu Hirono, Yokohama, JP;
Hirotoshi Nakao, Sano, JP;
Akio Mito, Sano, JP;
Kazuyuki Kihara, Sano, JP;
Kosuke Hatakenaka, Sano, JP;
Hiroshi Ogawa, Sano, JP;
Tokyo Keiki Company, Ltd., Tokyo, JP;
Abstract
A proportional electromagnetic valve includes a valve main body having a valve member, a solenoid to drive the valve member, and an amplifier unit to control the solenoid. The solenoid is attached to one or both side portions of the valve main body. The amplifier unit has a size which is almost equal to a size on the unit attaching surface side of the valve main body and solenoids. The casing of the amplifier unit has an enclosing space large enough such that single printed board having all of drive amplifiers attached there to placed in the casing of the amplifier unit.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile