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.

Date of Patent:
Apr. 27, 2010

Filed:

May. 02, 2006
Applicants:

Akira Kosaka, Yao, JP;

Junichi Tanii, Izumi, JP;

Yoshie Shimizu, Ibaraki, JP;

Shigeru Wada, Kishiwada, JP;

Inventors:

Akira Kosaka, Yao, JP;

Junichi Tanii, Izumi, JP;

Yoshie Shimizu, Ibaraki, JP;

Shigeru Wada, Kishiwada, JP;

Assignee:
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
F01B 29/10 (2006.01);
U.S. Cl.
CPC ...
Abstract

An arrangement of the invention includes a base block, a cylindrical cam, as a rotary member, which is rotatably supported on the base block, and includes a contact portion on an outer periphery thereof for outputting a rotating force, a drive gear, as an oscillatory ring, which includes a contact portion on an inner periphery thereof, and is oscillated on a plane perpendicular to a rotation axis of the cylindrical camin contact with the contact portion of the cylindrical cam, parallel springsthrough, as a position retainer, for retaining the position of the drive gear, and three or more shape metal alloy actuators (SMA) wiresthrough, as expandable and contractible actuators, with both ends of the each SMA wire being fixed to the base blockfor contact with the drive gear


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