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. 04, 2013
Filed:
Aug. 01, 2007
Johannes Andrianus Maria Duits, Bodegraven, NL;
Patric Eberle, Hersberg, CH;
Johannes Andrianus Maria Duits, Bodegraven, NL;
Patric Eberle, Hersberg, CH;
Aktiebolaget SKF, Göteborg, SE;
Abstract
Linear actuator device, comprising a housing (), an externally threaded screw () mounted to a piston (), an internally threaded extended nut () and a motor () comprising a stator () and a rotor element () positioned around the extended nut (), wherein a plurality of first magnets () of the rotor element () are positioned in relation to the stator () such that the stator () lies between the extended nut () and the first magnets () of the rotor element (). The advantage of the invention is that linear actuators with a high energy density can be manufactured in an easy and cost-effective manner.