Frames And Electrode Supports Patents (Class 314/130)
  • Patent number: 7960891
    Abstract: A power tool has an electric motor that includes a commutator, with which at least one commutator brush is acted upon with spring force via at least one commutator spring in the direction of a non-rotatable collector of the commutator. At least one auxiliary tool for adjusting the commutator spring is located on a component of the power tool.
    Type: Grant
    Filed: February 25, 2008
    Date of Patent: June 14, 2011
    Assignee: Robert Bosch GmbH
    Inventor: Florian Esenwein
  • Patent number: 3932785
    Abstract: A support includes a support element having two electrode contact areas for each electrode to be clamped. Each contact area has fixed thereto a conductive carbon plate. A clamping device has a non-conductive clamping surface for clamping each electrode against its respective pair of carbon plates.
    Type: Grant
    Filed: August 26, 1974
    Date of Patent: January 13, 1976
    Inventor: Shigeru Suga