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. 25, 2005
Filed:
Oct. 28, 2002
Makoto Fujiwara, Hirakata, JP;
Satoshi Nakayama, Hirakata, JP;
Wataru Sanematsu, Hirakata, JP;
Matsushita Electric Works, Ltd., Osaka, JP;
Abstract
A reciprocating linear actuator capable of reciprocatingly driving a plurality of movable elements (and) by a single stator (). The movable elements (and) are connected to each other through a connection body () having a spring characteristic to be capable of displacement in the reciprocating direction of the movable element. The connection body () has such a shape that can be drawn with a single stroke on a two dimensional plane, and at least both ends thereof are connected to the movable elements (and), respectively. Since the connection body () is made of a flat spring, it requires less space for installation as compared to a connection body formed of a coiled spring. Further, since the entire connection body has an effective spring characteristic, a relatively smaller size is required for the connection body to provide a required spring characteristic. The less installation space for the connection body () is advantageous to a reduction in size of the linear actuator.