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:
Nov. 05, 2013
Filed:
Aug. 18, 2008
Thomas Finocchiaro, Aachen, DE;
Thomas Butschen, Viersen, DE;
Marc Lessmann, Arnsberg, DE;
Kay Hameyer, Heverlee, BE;
Thomas Schmitz-rode, Aachen, DE;
Ulrich Steinseifer, Hauset, BE;
Paul Barteld Kwant, AG Vijlen, NL;
Thomas Finocchiaro, Aachen, DE;
Thomas Butschen, Viersen, DE;
Marc Lessmann, Arnsberg, DE;
Kay Hameyer, Heverlee, BE;
Thomas Schmitz-Rode, Aachen, DE;
Ulrich Steinseifer, Hauset, BE;
Paul Barteld Kwant, AG Vijlen, NL;
Rheinisch-Westfaelische Technische Hochschule Aachen, Aachen, DE;
Herz-und Diabeteszentrum NRW, Bad Oeynhausen, DE;
Abstract
The invention relates to an electrical linear drive, in particular for a pump system of an artificial heart, with a movable part and a stationary part, wherein the stationary part is formed by a permanent magnet arrangement and the movable part is formed by a coil arrangement, or vice versa, and wherein the coil arrangement and the permanent magnet arrangement can be moved to and fro relative to each other in an axial direction by means of current passed through the coil arrangement. The invention further relates to an electrical linear drive of this kind in which the permanent magnet arrangement is designed as a stack of frame-shaped, in particular ring-shaped magnets, which are magnetized alternately radially and axially in the axial direction, such that the magnetic field is strengthened on one side of the frame.