Patents by Inventor Gerard Jean Blain

Gerard Jean Blain 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).

  • Static relay with condition detecting
    Patent number: 6111736
    Abstract: A static relay with semiconductors for insertion into AC electric circuits. The relay includes devices for determining when the state of the relay is in the operating phase and in additional states corresponding to the relay destroyed, the electric circuit deenergized and the relay disconnected from the electric circuit. These devices are wired to the terminals of the relay. The device may be used for determining the opening and closing of electric circuits operating in an AC mode.
    Type: Grant
    Filed: October 20, 1998
    Date of Patent: August 29, 2000
    Assignee: Crouzet Aotomatismes
    Inventor: Gerard Jean Blain