Patents by Inventor Frank Wittstadt

Frank Wittstadt 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).

  • Electromotive drive, in particular blower drive having a vibration dampening system on a bearing side
    Patent number: 9979257
    Abstract: An electromotive drive being a commutator motor has a motor shaft being rotatably mounted on axially opposite sides in shaft bearings which are each covered by an end plate. A damping system for damping sound is arranged on that bearing side, which is averted from the end plate, of at least one of the shaft bearings. The damping system has an annular sealing disk and an annular sliding disk with an integrated spring element.
    Type: Grant
    Filed: November 26, 2014
    Date of Patent: May 22, 2018
    Assignee: Brose Fahrzeugteile GmbH & Co. Kommanditgesellschaft, Wuerzburg
    Inventors: Frank Wittstadt, Marco Stoehling
  • ELECTROMOTIVE DRIVE, IN PARTICULAR BLOWER DRIVE
    Publication number: 20150076938
    Abstract: An electromotive drive being a commutator motor has a motor shaft being rotatably mounted on axially opposite sides in shaft bearings which are each covered by an end plate. A damping system for damping sound is arranged on that bearing side, which is averted from the end plate, of at least one of the shaft bearings. The damping system has an annular sealing disk and an annular sliding disk with an integrated spring element.
    Type: Application
    Filed: November 26, 2014
    Publication date: March 19, 2015
    Inventors: FRANK WITTSTADT, MARCO STOEHLING
  • Electric motor drive, in particular fan drive
    Patent number: 8884477
    Abstract: An electro-motor drive, in particular for a fan drive of a motor vehicle, includes a commutator motor, a motor shaft of which is rotatably mounted on axially opposite sides in shaft bearings facing away from the bearing shield in order to substantially dampen the sound of at least bearing play-related contact noise and vibration or humming noise.
    Type: Grant
    Filed: December 27, 2012
    Date of Patent: November 11, 2014
    Assignee: Brose Fahrzeugteile GmbH & Co. Wuerzburg
    Inventors: Marco Stoehling, Karl-Heinz Bauer, Michael Rueb, Frank Wittstadt, Hannelore Diller, Peter Tiemeyer
  • Electric motor drive, in particular fan drive
    Patent number: 8421283
    Abstract: An electro-motor drive, in particular for a fan drive of a motor vehicle, includes a commutator motor, a motor shaft of which is rotatably mounted on axially opposite sides in shaft bearings facing away from the bearing shield in order to substantially dampen the sound of at least bearing play-related contact noise and vibration or humming noise.
    Type: Grant
    Filed: June 17, 2011
    Date of Patent: April 16, 2013
    Assignee: Brose Fahrzeugteile GmbH & Co. KG Wuerzburg
    Inventors: Marco Stoehling, Karl-Heinz Bauer, Michael Rueb, Frank Wittstadt, Hannelore Diller, Peter Tiemeyer
  • ELECTRIC MOTOR DRIVE, IN PARTICULAR FAN DRIVE
    Publication number: 20110309696
    Abstract: An electro-motor drive, in particular for a fan drive of a motor vehicle, includes a commutator motor, a motor shaft of which is rotatably mounted on axially opposite sides in shaft bearings facing away from the bearing shield in order to substantially dampen the sound of at least bearing play-related contact noise and vibration or humming noise.
    Type: Application
    Filed: June 17, 2011
    Publication date: December 22, 2011
    Inventors: Marco STOEHLING, Karl-Heinz Bauer, Michael Rueb, Frank Wittstadt, Hannelore Diller, Peter Tiemeyer