Patents by Inventor Albert Morelli

Albert Morelli 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 protection against short circuits for AC networks and current limiting circuit breaker appropriate for such a device
    Patent number: 4814932
    Abstract: A device for protecting an AC distribution network against short circuit currents and an appropriate current limiting circuit breaker. A downstream circuit breaker (D1) generates a signal (S) for neutralizing the opening of the contacts of an upstream current limiting circuit breaker (D2) when the downstream current exceeds a neutralization threshold less than the tripping threshold and/or than the limitation threshold of (D2). The upstream current limiting circuit breaker (D2) has in parallel a pair of head to tail thyristors (TH1, TH2) and a circuit (16) for controlling the gates of the thyristors, this circuit enabling one of the thyristors in response to the signal (S) for inhibiting (D2) for at most one half wave.
    Type: Grant
    Filed: March 3, 1988
    Date of Patent: March 21, 1989
    Assignee: La Telemecanique Electrique
    Inventor: Albert Morelli