Patents by Inventor Hans J. Beilfuss

Hans J. Beilfuss 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).

  • Slip-controlled brake system, especially for use with automotive vehicles
    Patent number: 5312174
    Abstract: A slip-controlled brake system, especially for use with automotive vehicles has a brake pressure generator (1) accommodating a master cylinder (2) connected to the brake pressure generator through master brake conduits (62,63) are the wheel brakes (31 to 34), comprising hydraulic auxiliary pressure pumps (21,26) and wheel sensors (S1 to S4) and electronic circuits capable to control, for slip control purposed, electromagnetically actuable pressure fluid inlet valves (24,25,29,30) and pressure fluid outlet valves (22,23,35,36) provided in the pressure fluid conduits, with pressure pulsation attenuators (27) of a defined volume expansion and flow length being provided for noise reduction purposed during the control operation, between the master cylinder (2) and the wheel brakes (31 through 34).
    Type: Grant
    Filed: February 12, 1993
    Date of Patent: May 17, 1994
    Assignee: Alfred Teves GmbH
    Inventors: Hans J. Beilfuss, Frank Goehring, Michael Vogt
  • Slip-controlled brake system, especially for use with automotive vehicles
    Patent number: 5209554
    Abstract: A slip-controlled brake system, especially for use with automotive vehicles has a brake pressure generator (1) accommodating a master cylinder (2) connected to the brake pressure generator through master brake conduits (62,63) are the wheel brakes (31 to 34), comprising hydraulic auxiliary pressure pumps (21,26) and wheel sensors (S1 to S4) and electronic circuits capable to control, for slip control purposed, electromagnetically actuable pressure fluid inlet valves (24,25,29,30) and pressure fluid outlet valves (22,23,35,36) provided in the pressure fluid conduits, with pressure pulsation attenuators (27) of a defined volume expansion and flow length being provided for noise reduction purposed during the control operation, between the master cylinder (2) and the wheel brakes (31 through 34).
    Type: Grant
    Filed: December 21, 1990
    Date of Patent: May 11, 1993
    Inventors: Hans J. Beilfuss, Frank Goehring, Michael Vogt