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:
Nov. 22, 2011
Filed:
Mar. 07, 2011
Peter Janker, Riemerling, DE;
Alois Wagner, Dietramszell, DE;
Peter Janker, Riemerling, DE;
Alois Wagner, Dietramszell, DE;
Eurocopter Deutschland GmbH, Donauworth, DE;
Abstract
An apparatus for producing a holding or transmission frame () for an electrostrictive actuator, in particular, a stacked piezoactuator () includes the following steps: a) a winding spindle (), corresponding to the shape of the inner periphery of the frame (), is wound with several layers of a unidirectional prepreg for forming a laminate body; b) the laminate body is hardened; c) the hardened laminate body in the frame is cut by sections parallel to the direction of winding. An electrostrictive drive () includes an electrostrictive actuator () in which the length varies during actuation, and a transmission frame () that surrounds the actuator, is connected to the actuator for initiating the variation in length of the actuator and for amplifying the actuator, the transmission frame () being made of a prepreg that is wound in the laminate body and hardened.