Patents by Inventor Dirk Bottcher

Dirk Bottcher has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Patent number: 8205727
    Abstract: An electromagnetic brake (20), in particular for an electric drive is provided, having a brake body (3), which is provided with a sleeve-shaped permanent magnet (4), an electromagnet (5) with an exciting coil (6), an external ring in the form of an external pole and an internal ring (8) in the form of an internal pole, wherein an armature disc (12) rotatably connected to a shaft is attractable against the brake body (3) or the external or internal ring surfaces by the permanent magnet (4) force acting against a return spring force. When the exciting coil is powered, the permanent magnet (4) magnetic field is compensated in such a way that the armature disc (12) is lifted up from the brake body (3) by the spring force, thereby allowing the brake to be released.
    Type: Grant
    Filed: August 27, 2005
    Date of Patent: June 26, 2012
    Assignee: Kendrion Binder Magnete GmbH
    Inventors: Jurgen Berndt, Erwin Messner, Dirk Bottcher
  • Publication number: 20080136279
    Abstract: An electromagnetic brake (20), in particular for an electric drive is provided, having a brake body (3), which is provided with a sleeve-shaped permanent magnet (4), an electromagnet (5) with an exciting coil (6), an external ring in the form of an external pole and an internal ring (8) in the form of an internal pole, wherein an armature disc (12) rotatably connected to a shaft is attractable against the brake body (3) or the external or internal ring surfaces by the permanent magnet (4) force acting against a return spring force. When the exciting coil is powered, the permanent magnet (4) magnetic field is compensated in such a way that the armature disc (12) is lifted up from the brake body (3) by the spring force, thereby allowing the brake to be released.
    Type: Application
    Filed: August 27, 2005
    Publication date: June 12, 2008
    Applicant: KENDRION BINDER MAGNETE GMBH
    Inventors: Jurgen Berndt, Erwin Messner, Dirk Bottcher