Patents Assigned to Fern Engineering
  • Turbine seal
    Patent number: 4379560
    Abstract: Seal for two concentric tubular elements of a gas turbine, consisting of rings associated with each element and having facing grooves, and of a connector extending between the grooves and consisting of two annuli which are in concentric spaced relationship and are joined by a web.
    Type: Grant
    Filed: August 13, 1981
    Date of Patent: April 12, 1983
    Assignee: Fern Engineering
    Inventor: Gordon J. Bakken
  • Appearance system
    Patent number: 4226068
    Abstract: System consisting of a series of decorative panels arranged in coplanar relationship over the vertical surface of a structure, each panel being attached to the structure at its central point by a single separable connection.
    Type: Grant
    Filed: December 4, 1978
    Date of Patent: October 7, 1980
    Assignee: Fern Engineering
    Inventor: Walter J. Wadsworth