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:
Dec. 17, 2002
Filed:
Nov. 08, 2000
Jürgen Schnatterer, Wolfschlugen, DE;
Martin Maichl, Salach, DE;
Bernd Kärcher, Neckartenzlingen, DE;
Jürgen Gerhartz, Esslingen, DE;
Festo AG & Co., Esslingen, DE;
Abstract
An electromagnetic drive device is proposed comprising an electromagnet ( ) having a magnetizable core ( ) with a plurality of limbs ( and ) and an energizable winding arrangement ( ) surrounding at least one limb ( and ) of the core ( ). Furthermore there is a magnetizable magnet armature ( ) able to be moved in relation to the core (( ) by varying the winding arrangement current. The ( ) core has at least one U arrangement and is formed essentially by a plurality of sheet metal elements ( ) resting against each other and extending athwart the direction of the parallel limbs ( and ), the parallel limbs being respectively surrounded by one winding ( and ) of the winding arrangement ( ).