Patents by Inventor Richard Grundwurmer

Richard Grundwurmer 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).

  • Brake actuator
    Patent number: 6840354
    Abstract: The invention relates to a brake actuator, especially for a rail vehicle brake, comprising a service brake unit with a brake force generator for applying and/or releasing the brake, an accumulator brake unit with an energy accumulator device for accumulating and delivering energy for applying the brake as an operative emergency brake and/or as a parking brake, and a force conversion device for converting the energy that is provided by the brake force generator and/or the energy accumulator device into a brake application movement. The invention provides that the brake actuator has an additional energy accumulator device for accumulating and delivering energy for applying and/or releasing the brake. The additional energy accumulator device and the brake force generator can be designed in such a way that the force required of the brake force generator during a braking operation in order to generate a defined brake application force level that is greater than zero but less than the maximum brake force is zero.
    Type: Grant
    Filed: October 30, 2001
    Date of Patent: January 11, 2005
    Assignee: Knorr-Bremse Systeme für Schienenfahrzeuge GmbH
    Inventors: Richard Grundwürmer, Josef Staltmeir, Manfred Vohla
  • Brake actuator
    Publication number: 20040079598
    Abstract: The invention relates to a brake actuator, especially for a rail vehicle brake, comprising a service brake unit with a brake force generator (24) for applying and/or releasing the brake, an accumulator brake unit with an energy accumulator device (10) for accumulating and delivering energy for applying the brake as an operative emergency brake and/or as a parking brake, and a force conversion device (100) for converting the energy that is provided by the brake force generator and/or the energy accumulator device (10) into a brake application movement. The invention provides that the brake actuator has an additional energy accumulator device (12) for accumulating and delivering energy for applying and/or releasing the brake.
    Type: Application
    Filed: September 23, 2003
    Publication date: April 29, 2004
    Inventors: Richard Grundwurmer, Josef Stalmeir, Manfred Vohla