Patents by Inventor Frank Beiser

Frank Beiser 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).

  • Electric machine
    Patent number: 6707217
    Abstract: During the operation of an electrical machine, brush dust is generated as a result of a frictional wear of the brushes (5, 50), The brush dust is deposited in undesired locations of the electric machine and causes sparkovers or increased frictional resistance. In order to solve the above-mentioned problem, the invention provides for a brush dust collecting device (41) comprising a dust collecting bead (6, 13, 21, 42) mounted in direct plurality to the slip ring (1, 11, 23, 53).
    Type: Grant
    Filed: February 11, 2002
    Date of Patent: March 16, 2004
    Assignee: Voith Siemens Hydro Power Generation GmbH & Co. KG
    Inventors: Günter Zwarg, Frank Beiser