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:
Sep. 03, 1991
Filed:
Apr. 10, 1990
Mamoru Watanabe, Kawaguchi, JP;
Yasuhiro Miyama, Hunabashi, JP;
Miyako Jidosha Kogyo Kabushikikaisha, Tokyo, JP;
Abstract
An elastic body apparatus includes a pneumatic pressure sealing member formed of a hollow flexible material and sealing therein a high pressure pneumatic gas, a movable member driven by an external force against the pressure of the pneumatic pressure sealing member, a fixed shell enveloping a fixed portion of the pneumatic pressure sealing member, and an elastic shell having plate spring portions for applying a spring force in the same direction as the pressing direction of the pneumatic pressure sealing member to the movable member, and disposed at a position enveloping a displacing portion of the pneumatic pressure sealing member. The elastic shell serves as a shell and a spring body, and even if the pressure of the pneumatic pressure sealing member is increased, the pneumatic pressure sealing member is prevented from being deformed in excess of a normal level, and the pressure is transmitted to the movable member through the pneumatic pressure sealing member.