Patents by Inventor Olaf Kaisers

Olaf Kaisers 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).

  • Trailer control valve for a compressed air brake system for motor vehicles
    Patent number: 6206481
    Abstract: A trailer control valve having control pistons for actuating a double seat valve, which can control the communication between a compressed air reservoir, a compressed air consumer, and a pressure relief location. In order to structurally simplify the trailer control valve, a control piston is provided that is jointly associated with an electrical control circuit and a pneumatic control circuit of a service brake system. Furthermore, a valve is provided that is connected to the pneumatic control circuit of the service brake system, which closes the pneumatic control circuit of the service brake off from to the trailer control valve when the electrical control circuit is functional, and in the event of a failure of the electrical control circuit, unblocks the pneumatic control circuit of the service brake system.
    Type: Grant
    Filed: September 9, 1998
    Date of Patent: March 27, 2001
    Assignee: Knorr-Bremse
    Inventors: Olaf Kaisers, Eberhard Schaffert
  • Method and apparatus for detecting a trailer towing mode for a motor vehicle
    Patent number: 5986544
    Abstract: A method and an apparatus for detecting a trailer towing mode for a motor vehicle, in which, depending on the pressure modulated to the trailer, a variable characterizing the pressure buildup is ascertained, and on the basis thereof a determination is made as to whether or not a trailer or semitrailer is attached.
    Type: Grant
    Filed: October 5, 1998
    Date of Patent: November 16, 1999
    Assignee: Robert Bosch GmbH
    Inventors: Olaf Kaisers, Matthias Horn