Patents by Inventor Oliver Raynauld

Oliver Raynauld 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).

  • Magnetorheological (MR) piston assembly with primary and secondary channels to improve MR damper force
    Patent number: 8327984
    Abstract: A magnetorheolgical (MR) damper includes a piston assembly having a primary channel disposed along a longitudinal axis and contained in a cylinder. MR fluid is also contained in the cylinder. The piston assembly having a primary channel, or primary channel MR piston assembly, includes a piston body having a first end axially spaced from a second end and defining a hole therethrough. The primary channel is defined in an outer body surface of the piston body from the hole at the second end to a coil groove in the outer body surface about the axis. A secondary channel is defined in the outer body surface from the coil groove towards the first end to improve MR damper force performance at low primary channel MR piston assembly velocities.
    Type: Grant
    Filed: October 30, 2009
    Date of Patent: December 11, 2012
    Assignee: BWI Company Limited S.A.
    Inventors: Robert T. Foister, Thomas W. Nehl, William C. Kruckemeyer, Oliver Raynauld
  • MAGNETORHEOLOGICAL (MR) PISTON ASSEMBLY WITH PRIMARY AND SECONDARY CHANNELS TO IMPROVE MR DAMPER FORCE
    Publication number: 20110100775
    Abstract: A magnetorheolgical (MR) damper includes a piston assembly having a primary channel disposed along a longitudinal axis and contained in a cylinder. MR fluid is also contained in the cylinder. The piston assembly having a primary channel, or primary channel MR piston assembly, includes a piston body having a first end axially spaced from a second end and defining a hole therethrough. The primary channel is defined in an outer body surface of the piston body from the hole at the second end to a coil groove in the outer body surface about the axis. A secondary channel is defined in the outer body surface from the coil groove towards the first end to improve MR damper force performance at low primary channel MR piston assembly velocities.
    Type: Application
    Filed: October 30, 2009
    Publication date: May 5, 2011
    Applicant: DELPHI TECHNOLOGIES, INC.
    Inventors: Robert T. Foister, Thomas W. Nehl, William C. Kruckemeyer, Oliver Raynauld