Patents by Inventor Etienne Ombredane

Etienne Ombredane 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).

  • Device for sealing an enclosure containing an expandable fluid, especially within an electrical connection assembly
    Patent number: 4903972
    Abstract: A sealing device for an enclosure containing an expandable fluid, particularly for high-voltage connectors, ensures fluid-tightness over a broad temperature range and provides a safety function by accommodating variations in volume of the fluid by the use of an O-ring seal displaceably clamped within an annular recess. A sectional length L1 of the recess in which the seal can take up n positions is constituted by an initial-clamping space and by a clearance space into which the seal can penetrate under the pressure of fluid.
    Type: Grant
    Filed: December 21, 1987
    Date of Patent: February 27, 1990
    Assignee: Thomson-CGR
    Inventor: Etienne Ombredane