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:
Jun. 27, 2006
Filed:
Feb. 17, 2004
Stefan Johansson, Uppsala, SE;
Mats Bexell, Uppsala, SE;
Anders Jansson, Uppsala, SE;
Piezomotor Uppsala AB, Uppsala, SE;
Abstract
An electromechanical actuatoris disclosed, having drive elements () movable in two dimensions and connected to an actuator backing (). The actuator backing () is made of a material being ferromechanically inactive. Furthermore, the joint between the drive element () and the actuator backing () is stiff and highly stable. This is achieved by use of an irreversible joint made e.g. by thermoset plastic glues, diffusion bonding or co-sintering. Co-sintering is to prefer. The actuator backing () material is selected to be stiff, preferably having a stiffness above 70 GPa and more preferably above 100 GPa, and having a high heat conductivity, preferably above 5 W/mK and more preferably above 10 W/mK, Electrodes () are preferably integrated in the actuator backing to increase stiffness as well as improving the heat conductivity. The drive elements () are preferably covered (), at least at the driving surface, by heat-conducting material.