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:
Jun. 23, 2015
Filed:
Jan. 17, 2008
Teruo Aramizu, Fujisawa, JP;
Go Tanaka, Ashikaga, JP;
Teruo Aramizu, Fujisawa, JP;
Go Tanaka, Ashikaga, JP;
OILES CORPORATION, Tokyo, JP;
Abstract
A hydraulic pressure springincludes a hollow cylindrical cylinderhaving a threaded portionat one endthereof; a closure meanswhich is threadedly engaged with the threaded portionat the one endof the cylinderand closes the one endof the cylinder; a closure meanswhich is provided at the other endof the cylinderand closes the other endof the cylinder; a compressible liquidwhich is sealed in an interiorof the cylinderand is pressurized to a predetermined pressure; a rodwhich is passed through the closure meansmovably in an axial direction A and causes the liquidin the interiorof the cylinderto undergo a pressure rise as the rodenters the interiorof the cylinder; and a pistondisposed in the interiorof the cylinderand attached to one end of the rod