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:
Jul. 30, 1991
Filed:
Oct. 16, 1989
Toshio Fukuda, Hara, JP;
Masanori Kanashige, Yokohama, JP;
Nippon Oil Co., Ltd., Tokyo, JP;
Abstract
Disclosed is an actuator comprising a plate-shaped output member including a shape memory alloy, which is disposed between two bodies capable of relative movement. The output member comprises a shape memory alloy having such shape memory characteristics that a wave plate shape having at least one wave which extends in the direction orthogonal to the line connecting the attachment ends of the output member to be attached to the two bodies is formed in a specific temperature region. By utilizing the force of the output member for restorign the memorized shape in this specific temperature region, relative movement is caused between the two bodies constructing an articulated arm. The two bodies are turnably supported on a shaft and the above-mentioned actuator is arranged in the state set off from one side relatively to a plane including this shaft so that two bodies are relatively turned around this shaft.