Patents by Inventor Gerald M. Boisrayon

Gerald M. Boisrayon 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).

  • Swivel air lock for airtight connection between submergibles
    Patent number: 3987742
    Abstract: An air lock in accordance with the invention is composed of two portions -- stationary hemispherical bell 6 fastened on a submarine rescue device 5 and a swivel skirt 7 in the form of a portion of a swivel joint, nested in the bell with a slight amount of play, bearing a peripheral sealing joint 28 which is applied against the hull 2 of a submarine around an opening 3. Two sealing joints 19 and 15 are placed between the bell and the skirt and the intermediate space 20 is filled with oil maintained at a constant pressure which is slightly different from the hydrostatic pressure.
    Type: Grant
    Filed: February 4, 1975
    Date of Patent: October 26, 1976
    Assignee: Etat Francais represente par le Deleque Ministeriel pour l'Armement
    Inventors: Gerald M. Boisrayon, Gilbert M. Martin, Jean C. Mollard