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. 16, 1989
Filed:
May. 12, 1987
Yuichi Suzuki, Yokohama, JP;
The Furukawa Electric Co., Ltd., Tokyo, JP;
Abstract
An apparatus for rocking a crank has a crank having opposite ends and being pivotally mounted at one end thereof to a first point on a first substrate, a first spring attached at one end thereof to a second point on a second substrate and at the other end thereof to the other end of the crank and a second spring attached at one end thereof to a third point on a third substrate and at the other end thereof to the other end of the crank, an angle defined between a line extending through the first and second points and a line extending through the first and third points, respectively, on a side opposite an arc through which said other end of the crank moves being in a range of 105.degree. to 160.degree. and the first spring or both first spring and second springs being made of shape memory alloy(s) which returns(s) to a predetermined shape upon application of heat whereby the crank is rocked back and forth by temperature variations.