Patents by Inventor Jean Y. Regeffe

Jean Y. Regeffe 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).

  • Rotary sealing device
    Patent number: 4512790
    Abstract: A rotary sealing device for connecting a fixed gas supply pipe to a tube rotating about its axis. It comprises a first rotary member for receiving the fixed pipe, a second rotary member for receiving and sealing the rotary pipe and fixed to the first member, and a filter placed in a chamber made in the aforementioned members and forming an obstacle to the gas flow and consequently to an overpressure of said gas, opposing the entry into the said chamber of gas coming from outside the device.
    Type: Grant
    Filed: April 16, 1982
    Date of Patent: April 23, 1985
    Assignee: Lignes Telegraphiques & Telephoniques
    Inventors: Michel Faure, Jean Y. Regeffe, Yves Lumineau, Andre Jouanin