Patents by Inventor Andre Gromier

Andre Gromier 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 observing an equipment under tension
    Patent number: 3966297
    Abstract: Device for observing electrical equipment under voltage application, characterized in that it comprises an adjustable periscopic glass which include a lens assembly which conforms to and interfits with the observation ports within the equipment and carries within the lens assembly adjacent the periphery a light source for illumination of the equipment enclosure interior.
    Type: Grant
    Filed: May 28, 1974
    Date of Patent: June 29, 1976
    Assignee: Delle-Alsthom
    Inventors: Jacques Vigreux, Andre Gromier