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:
Jul. 10, 2018
Filed:
Dec. 25, 2013
Kosmek Ltd, Hyogo, JP;
Hideaki Yokota, Hyogo, JP;
Keitaro Yonezawa, Hyogo, JP;
KOSMEK LTD., Hyogo, JP;
Abstract
Apparatus configuration in which: a piston () is inserted into a housing () ascendably and descendably; and pressurized oil supplied to and discharged from a driving chamber () arranged above the piston (). An output rod () inserted into an upper wall () of the housing () protrudes upward from the piston (). A descent-detecting first detection valve () and an ascent-detecting second detection valve () arranged outside the periphery of the output rod () and in the upper wall (), circumferentially spaced apart at a predetermined interval. Each first detection valve () and second detection valve () has an operated portion () () which faces the piston () from above. The apparatus is configured so that pressurized air for detection is supplied through a first supply passage (B) and a second supply passage (B) inlets () () of the first detection valve () and the second detection valve (), respectively.