Patents by Inventor Normen Sach

Normen Sach 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).

  • Method for producing a commutator ring for an electric machine
    Patent number: 8635760
    Abstract: In a method for producing a commutator ring for a commutator of an electric machine, the lamellae of a commutator ring are formed of an electrically conductive, deformable band material, and they have at least one recess running in the longitudinal direction of the band material, before a desired number of the formed lamellae are closed to form the commutator ring. After the closing of the lamellae to form the commutator ring, a reinforcing ring made of an electrically nonconductive, deformation-resistant material is introduced into the recess and is fixed in the recess by plastic deformation of the lamellae of the commutator ring.
    Type: Grant
    Filed: October 28, 2008
    Date of Patent: January 28, 2014
    Assignee: Robert Bosch GmbH
    Inventors: Olaf Pflugmacher, Christian Anders, Wolfgang Hecht, Normen Sach
  • METHOD FOR PRODUCING A COMMUTATOR RING FOR A ROLL COMMUTATOR OF AN ELECTRIC MACHINE, AND ELECTRIC MACHINE
    Publication number: 20110043072
    Abstract: In a method for producing a commutator ring for a commutator of an electric machine, the lamellae of a commutator ring are formed of an electrically conductive, deformable band material, and they have at least one recess running in the longitudinal direction of the band material, before a desired number of the formed lamellae are closed to form the commutator ring. After the closing of the lamellae to form the commutator ring, a reinforcing ring made of an electrically nonconductive, deformation-resistant material is introduced into the recess and is fixed in the recess by plastic deformation of the lamellae of the commutator ring.
    Type: Application
    Filed: October 28, 2008
    Publication date: February 24, 2011
    Inventors: Olaf Pflugmacher, Christian Anders, Wolfgang Hecht, Normen Sach