Patents by Inventor Edmond Bielicki

Edmond Bielicki 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).

  • Safety device for a differential protection apparatus
    Patent number: 4736265
    Abstract: The invention provides a safety device for an electric installation protection apparatus, comprising a residual differential current detector through which pass a phase conductor and a neutral conductor, and a processing circuit supplied by a rectifier bridge and connected to the phase and neutral conductors. It further comprises biasing and safety circuits formed by a static bidirectional switch connected between a ground connection and the AC terminals of the rectifier bridge.
    Type: Grant
    Filed: August 14, 1987
    Date of Patent: April 5, 1988
    Assignee: La Telemecanique Electrique
    Inventors: Andras Gyongyosi, Bernard Dumortier, Edmond Bielicki