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:
Oct. 28, 1986
Filed:
Dec. 19, 1984
Takashi Kimura, Nagoya, JP;
Nippon Joucomatic Co., Ltd., Tokyo, JP;
Abstract
A pneumatic cylinder device with a locking mechanism has a pneumatic cylinder constituted by a cylinder, a piston slidably received in the cylinder and a piston rod extended from the piston outwardly of the cylinder, and a locking mechanism connected to the pneumatic cylinder and adapted to selectively lock the piston rod against movement. The locking mechanism comprises a housing through which the piston rod is slidably extended; a flexible tubular member disposed in the housing so as to surround the piston rod, the flexible tubular member being contractable and expandable radially; and annular pressure chamber formed around the flexible tubular member and having a variable volume; a volume changing means for causing a change in the volume of the pressure chamber; and a pressure transmission medium accommodated in the pressure chamber and adapted to transmit a pressure change, produced in the pressure chamber as a result of a volume change, to the flexible tubular member.