Patents by Inventor Didier Rolland

Didier Rolland 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).

  • External biological fluid drainage device
    Patent number: 6336924
    Abstract: An external device for the drainage of biological fluid, particularly cephalorrhachidian fluid, utilizes a catheter (1, 2), one end of which is disposed in the area to be drained and the other end of which is connected to a drainage bag (3). This device includes a pressure measuring device (4) for measuring the pressure in the area to be drained and external flow control valve (5) on the catheter. An electronically controlled power supply (10) is provided for actuating the valve when the pressure exceeds a predetermined threshold.
    Type: Grant
    Filed: December 15, 1998
    Date of Patent: January 8, 2002
    Assignee: NMT Neurosciences Implants S.A.
    Inventors: Alain Lecuyer, Bernard Amann, Didier Rolland
  • Compact device for monitoring the coating of a moving filamentary product
    Patent number: 5841524
    Abstract: An apparatus for monitoring a moving filamentary product having a device for monitoring the centering of the filamentary product relative to the coating, and a device for monitoring the quality of the coating. The centering monitoring device includes two light sources positioned at 90.degree. to each other in a plane perpendicular to the filamentary product. The coating quality monitoring device includes an optical receiver disposed between the two light sources in the same plane, and at 45.degree. to each of them, to receive the light beams reflected by the coating.
    Type: Grant
    Filed: December 26, 1996
    Date of Patent: November 24, 1998
    Assignee: Alcatel Alsthom Compagnie Generale D'Electricite
    Inventors: Bernard Floch, Didier Rolland