Patents by Inventor Arthur B. Joyal

Arthur B. Joyal 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).

  • Sonar transducer joint seal
    Patent number: 4949319
    Abstract: A seal of flexible waterproof material joins two shells, or a shell and its end plate, which are spaced at their edges to have a separation or gap between them into which the seal material loops. The seal material is attached to each shell, or to the shell and its end plate, to effect a watertight seal at the joint. When one joint edge moves radially with respect to the other edge, a low friction rolling action of the seal material accommodates the motion with low frictional resistance and low energy loss.
    Type: Grant
    Filed: December 20, 1988
    Date of Patent: August 14, 1990
    Assignee: Raytheon Company
    Inventors: Richard W. Boeglin, Arthur B. Joyal
  • Bowed elastomeric window
    Patent number: 4300219
    Abstract: A window for a sonar transducer housing is formed of an elastomeric plate which is bonded to a mounting ring for securing the window to the housing. The plate is bowed with a convex shape during the molding and the curing of the elastomer. During assembly of the housing, the convex surface of the plate faces inwardly and is depressed to a substantially planar configuration by the pressure of oil within the housing. The compression of the elastomer against the mounting ring inhibits separation of the elastomer from the ring.
    Type: Grant
    Filed: April 26, 1979
    Date of Patent: November 10, 1981
    Assignee: Raytheon Company
    Inventor: Arthur B. Joyal