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:
Oct. 11, 1977
Filed:
May. 15, 1975
Applicant:
Inventors:
Takeo Hiramatsu, Kyoto, JA;
Yasuhiko Fujita, Moriyama, JA;
Assignee:
Primary Examiner:
Int. Cl.
CPC ...
F15B / ; F15B / ;
U.S. Cl.
CPC ...
91446 ; 74869 ; 91448 ; 91451 ; 91459 ; 91461 ; 13759612 ; 13762564 ;
Abstract
An electric and hydraulic servomechanism controlling device comprises a pressure governor valve, a hydraulic servomechanism actuated by the supply of the line pressure regulated by said pressure governor valve, and a change-over valve for shifting an oil passage that connects said pressure governor valve and hydraulic servomechanism. The change-over valve serves also as a pressure reducing valve thereby reducing not only the capacity but also the size of the necessary solenoid.