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. 26, 2013
Filed:
Oct. 05, 2010
Yosuke Haruna, Kobe, JP;
Yosuke Haruna, Kobe, JP;
Kosmek Ltd., Hyogo, JP;
Abstract
A clamping apparatus has a piston inserted into a housing, a lock chamber located above the piston and a release chamber located below the piston. The clamping apparatus also has a diametrically expandable and contractible tapered sleeve attached to an annular plug portion projected upward from the housing and to be received in a tapered hole provided in a work pallet. An output rod is also inserted into a cylindrical hole of the plug portion and connected to the piston. Lock springs having compression coil springs are inserted into a plurality of spring-attachment holes formed in a recessed manner in an upper wall of the lock chamber, where the spring-attachment holes are communicatively connected to an outer surface of the housing by through holes, and pushing members are hermetically inserted into the through holes. The lock springs urge the sleeve through the pushing members with a predetermined force.