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:
Aug. 20, 2019
Filed:
Jun. 13, 2016
Kosmek Ltd., Hyogo, JP;
Ryota Kojima, Hyogo, JP;
KOSMEK LTD., Hyogo, JP;
Abstract
A piston body () of an advancing-retracting first piston () and a force-multiplying second piston () are arranged in series in a vertical direction in a housing (). Force acting on the second piston () due to pressurized oil in a lock chamber () is multiplied and converted into multiplied upward force via engaging balls () of a force multiplier (). Then, the multiplied upward force is transmitted to an output rod () of the first piston (). At an intermediate part of a first air detection passage () for use in detection formed in the housing (), a first detection valve () is provided. When the engaging balls () move inward in a radial direction, the first detection valve () is closed.