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:
Sep. 15, 2015
Filed:
Nov. 01, 2011
Hideaki Yokota, Hyogo, JP;
Hideaki Yokota, Hyogo, JP;
Kosmek Ltd., Hyogo, JP;
Abstract
An output rod () is inserted in a housing () so as to be movable vertically. A first piston () inserted in an upper part of the housing () is fixed to the output rod (), and a second piston () inserted in a lower part of the housing () is fitted on the output rod () so as to be movable vertically. A lock chamber () is arranged between the first piston () and the second piston (), and a first release chamber () and a second release chamber () are arranged above the first piston () and below the second piston (), respectively. Supply of a pressurized fluid into the lock chamber () in lock driving of the output rod () first causes the first piston () to be driven upward to drive the output rod () upward, and then causes the second piston () to be driven downward to drive the output rod () upward in a force-multiplying manner via a force multiplier ().