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:
May. 13, 2008
Filed:
Mar. 09, 2005
Akio Nakata, Tokyo, JP;
Masakazu Tetsuka, Tokyo, JP;
Akio Nakata, Tokyo, JP;
Masakazu Tetsuka, Tokyo, JP;
Koganei Corporation, Tokyo, JP;
Abstract
A fluid pressure cylinder can apply a fastening force to an axially movable reciprocating rod. A reciprocating rodis mounted in a case main bodyso as to be reciprocable in a forward direction and a backward direction, and two lock unitsandare incorporated in the case main body, and the lock unitsandinclude: lock sleevesandmounted axially movably and having taper surfacesand; and retainersandholding steel ballsandthat are fitted in the reciprocating rodaxially movably and engaged with the taper surfaces. A fastening cylinderthat contains a fastening rod so as to be reciprocable in a fastening direction and a fastening release direction is attached to the case main body, a fastening surfacecontacting with the lock sleevesandbeing formed in the fastening rod, and the reciprocating rodis fastened by the two lock unitsand