Patents by Inventor Maajke Van Der Laan

Maajke Van Der Laan 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).

  • Control system for continuously variable transmission and continuously variable transmission wherein such is utilized
    Patent number: 6824483
    Abstract: A control system for a continuously variable transmission and continuously variable transmission wherein such is utilised, includes a drive belt located between pulley discs of a first pulley and of a second pulley, the pulleys being rotatable at a rotational speed and being operable by a first and a second piston/cylinder assembly respectively. The control system controls the respective cylinder pressure in the first and second piston/cylinder assemblies, at least based on a torque signal representing the torque to be transmitted by the transmission and two speed signals representing the rotational speeds of the first and second pulley, for clamping the drive belt between the discs thereby enabling torque transmission between the pulleys and the drive belt.
    Type: Grant
    Filed: July 25, 2002
    Date of Patent: November 30, 2004
    Assignees: Van Doorne's Transmissie, Robert Bosch GmbH
    Inventors: Maajke Van Der Laan, Joachim Luh