Patents by Inventor Stephane Schmit

Stephane Schmit 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).

  • Patent number: 6446435
    Abstract: The invention relates to a vehicle hydraulic brake system with electrohydraulic brake boosting by a piston pump. In order to reduce pressure pulsations on an intake side of the multi-piston pump, the brake system embodies a multi-piston pump, for example, as a six-piston pump with stepped pistons that are driven with an alternating phase shift of 30° and 90° in relation to one another. The phase shift of the drive of the stepped pistons is selected so that the intake volume flows have a uniform phase shift, by which the total intake volume flow of the multi-piston pump has a reduced amplitude of the pressure pulsation, which reduces the repercussions on a master cylinder.
    Type: Grant
    Filed: April 10, 2000
    Date of Patent: September 10, 2002
    Assignee: Robert Bosch GmbH
    Inventors: Karl-Heinz Willmann, Dietmar Baumann, Hardy Haas, Stephane Schmit, Herbert Vollert, Andreas Reppich