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:
Apr. 09, 2002
Filed:
Feb. 09, 2000
Alexander Jan Carel De Vries, Tiel, NL;
Armin Herbert Emil August Olschewski, Nieuwegein, NL;
Hendrikus Jan Kapaan, Nieuwegein, NL;
Johannes Albertus Van Winden, Oudewater, NL;
Clair Druet, Drumettaz Clarafond, FR;
Thomas Müller, Essleben, DE;
SKF Engineering and Research Centre B.V., Nieuwegein, NL;
Abstract
An electric actuator ( ) comprises a housing ( ) which contains a screw mechanism ( ) and an electric motor ( ) which is driveably connected to the screw mechanism ( ), said screw mechanism ( ) providing a linear movement in a rotational movement of the electric motor ( ) and comprising a screw ( ) and a nut ( ), one of which is supported with respect to the housing ( ), a sensor ( ) being provided for measuring a quantity related to the rotational movement and/or the linear movement of the screw mechanism ( ). A control unit ( ) for monitoring and/or influencing the rotational and/or the linear movement of the screw mechanism ( ) on the basis of signals from the sensor ( ) has been provided.