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. 12, 2001
Filed:
Sep. 15, 1999
Ralf Bokämper, Lübbecke, DE;
Andreas Roither, Bielefeld, DE;
Dewert Antriebs-und Systemtechnik GmbH & Co. KG, Kirchlengern, DE;
Abstract
An electromotive linear drive mechanism, in particular a drive mechanism for a body of furniture, includes an electric motor having an output journal and a rotating spindle which has mounted thereon a nut, secured against rotation. The nut is operatively connected to the body of furniture, for movement in longitudinal direction of the spindle when the spindle rotates. A worm drive includes a worm which rotates about an axis of rotation and is in engagement with the output journal of the electric motor. Connecting the worm drive to the spindle are at least two worm gears which are in engagement with the worm and arranged in symmetric disposition with respect to the rotation axis of the worm. Each worm gear which is connected to a cylindrical gear is in operative engagement with the respective cylindrical gear meshing with the other worm gear.