Patents by Inventor Jaan Paul Riotte

Jaan Paul Riotte 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).

  • Patent number: 4763220
    Abstract: Each phase circuit comprises a static switch of the IGT or GTO type, between the anode and the cathode of which there is arranged in parallel a series mounting of a CTP resistance and of a normally open switch which is closed when a current detector detects a short abnormal intensity lower than six times the rated current; said static switch is locked either immediately when the rate is higher than six, or with a short delay on the contrary. Said device is particularly convenient to be used in industrial installations where it is desired to replace the associations of contactors, thermal relay and circuit breaker by static apparatuses.
    Type: Grant
    Filed: February 3, 1987
    Date of Patent: August 9, 1988
    Assignee: La Telemecanique Electrique
    Inventors: Elie Belbel, Louis Fechant, Jaan Paul Riotte