Patents by Inventor John R. Legge

John R. Legge 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).

  • Isostatic self-contained bond or mold tool
    Patent number: 4855011
    Abstract: An arrangement for manufacturing complex structures by transferring heat and pressure from ceramic molds to the article to be molded. The arrangement comprises a combination of ceramic molds, a flexible pressure bag means for applying pressure to at least one of the ceramic molds and a flexible pressure heating blanket means to apply pressure and heat against at least one of the ceramic molds.
    Type: Grant
    Filed: December 12, 1986
    Date of Patent: August 8, 1989
    Assignee: United Technologies Corporation
    Inventors: John R. Legge, Frank C. Rutherford
  • Isostatic die and method for assembly of skeletal structures
    Patent number: 4595444
    Abstract: A pair of strongbacks having a plurality of particularly sized plates positioned thereon are aligned on either side of a wing structure. The plates on the strongback bridge openings formed by the ribs of the skeletal framework for the wing preventing deformation of the unsupported curvilinear aerodynamic surface of the wing. A bonding chamber includes a flexible bladder and allows the strongbacks to act as an isostatic, and selective die.
    Type: Grant
    Filed: November 14, 1983
    Date of Patent: June 17, 1986
    Assignee: United Technologies Corporation
    Inventors: John R. Legge, Charles E. Nunley
  • Die construction for fan blades
    Patent number: 4383426
    Abstract: A die construction for forming or reforming a fan blade to press dies in which opposed dies have cooperating cavities to form a recess to receive the blade, at least a part of one of the cavities having a diaphragm welded thereto to form a chamber beneath the diaphragm so that by pressing the chamber the adjacent part of the blade will be shaped against the surface of the opposing recess.
    Type: Grant
    Filed: March 16, 1981
    Date of Patent: May 17, 1983
    Assignee: United Technologies Corporation
    Inventor: John R. Legge