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:
Nov. 21, 2006
Filed:
Mar. 26, 2004
Masaki Dohgami, Kani-gun, JP;
Dwight Bruce Stephenson, Delafield, WI (US);
Masaki Dohgami, Kani-gun, JP;
Dwight Bruce Stephenson, Delafield, WI (US);
Husco International, Inc., Waukesha, WI (US);
Kayaba Industry Co., Ltd., Tokyo, JP;
Abstract
A pair of hydraulic cylinderswhich are coupled to a driven member, placed parallel to each other and extend/contract in synchronization with each other, and a control valvewhich controls hydraulic fluid supplied to or discharged from the hydraulic cylinderare provided. An elastic support mechanismwhich supports the control valveto each hydraulic cylinder between the paired hydraulic cylinders; metallic pipingand the metallic pipingwhich connect the control valvewith the respective hydraulic cylindersand leads the hydraulic fluid controlled by the controlling valve; and curved portionswhich are provided at some midpoints of the piping and flexibly deform in accordance with relative deformation of each hydraulic cylinderare provided. A difference in relative displacement of each hydraulic cylinder with respect to the control valveis absorbed by deformation produced in the elastic support mechanismand the curved portions.