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. 26, 1981
Filed:
Aug. 29, 1979
Applicant:
Inventor:
Toshio Kamimura, Gifu, JP;
Assignee:
Teijin Seiki Company Limited, Osaka, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
F15B / ; F15B / ;
U.S. Cl.
CPC ...
91419 ; 91447 ; 91400 ;
Abstract
The hydraulic apparatus includes a valve which is closable to prevent fluid from flowing out of a cylinder chamber when the pressure of the fluid drops below a predetermined level, and a transmitter which opens the valve so as to keep the chamber pressure constant when a piston slidably received in the chamber moves due to heat-caused expansion of the fluid in the chamber. The apparatus is disclosed in the context of an aircraft spoiler control system.