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:
Mar. 22, 2016
Filed:
May. 28, 2010
Mats Bexell, Uppsala, SE;
Per Oskar Lithell, Uppsala, SE;
Mats Bexell, Uppsala, SE;
Per Oskar Lithell, Uppsala, SE;
PIEZOMOTOR UPPSALA AB, Uppsala, SE;
Abstract
An electromechanical rotating actuator arrangement () includes a stator (), a rotor (), a guide arrangement () and an object () to be moved. The stator () has electromechanically active actuators (), exhibiting shape changes upon excitation, rigidly attached to a common stator block (). The rotor () has a planar drive surface (). The electromechanically active actuators () have a respective driving surface (), situated in a common plane () parallel to the drive surface (), for mechanical interaction with the drive surface () of the rotor (). The object () to be moved is attached to the rotor (), giving a rigid mechanical connection between the object () and the drive surface (). The guide arrangement () is arranged for restricting translational motions of the rotor () perpendicular to the rotation axis (). A method for driving an electromechanical rotating actuator arrangement () is also disclosed.