Patents by Inventor Andre N. Baratin

Andre N. Baratin 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).

  • Subscriber's line equipment for a telephone exchange
    Patent number: 4133986
    Abstract: A subscriber's telephone line equipment for connection to a telephone exchange for replacing a telephone transformer or other kind of transformer. The equipment comprises a circuit connected to the telephone line which comprises two voltage sources, a chopper circuit, a voltage-doubling rectifier, a current-limiting circuit and a closed-loop detecting circuit, and receiving and transmitting circuits connected to said telephone exchange.
    Type: Grant
    Filed: November 16, 1977
    Date of Patent: January 9, 1979
    Assignee: Jeumont-Schneider
    Inventors: Jean A. Picandet, Andre N. Baratin
  • Subscriber's line equipment for a telephone exchange
    Patent number: 4119806
    Abstract: A subscriber's line equipment for a telephone exchange for replacing equipment comprising a telephone transformer or chopper, comprises a telphone line supply circuit comprised of two constant d.c. voltage sources, a transistor functioning as a constant current generator, a transformer connected to rectifying means, two transmitters connected to the primary winding of the transformer, a closed loop detecting circuit and receiving and transmitting circuits connected to receive and transmit signals to the telephone exchange.
    Type: Grant
    Filed: December 6, 1977
    Date of Patent: October 10, 1978
    Assignee: Jeumont-Schneider
    Inventor: Andre N. Baratin