Patents by Inventor Edwin F. C. Cain

Edwin F. C. Cain 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).

  • Compliant interface for ceramic turbine blades
    Patent number: 4417854
    Abstract: The present invention provides a ceramic turbine blade having a ceramic root flange and a metallic compliant layer which is electroformed to the ceramic root flange and then machine-formed to the geometry required for attachment to the turbine disk. Because of its intimate bond to the surface of the ceramic root flange and because of its compliant nature, the metallic compliant layer serves to uniformly distribute stresses induced by the attachment of the blade to the turbine disk. The present invention also envisions the attachment and use of a fir tree root section to an otherwise complete ceramic blade without risk of stress fracture or modification of the turbine disk.
    Type: Grant
    Filed: April 19, 1982
    Date of Patent: November 29, 1983
    Assignee: Rockwell International Corporation
    Inventors: Edwin F. C. Cain, William T. McFarlen
  • Method of sintering ceramics
    Patent number: 4209478
    Abstract: A compact is surrounded by a compatible, nonsinterable powder within a container with a layer of sinterable powder disposed on top of the nonsinterable powder and placed in a sintering oven. During sintering, the sinterable powder forms a cover that retards decomposition of the compact and serves to enhance densification of the compact.
    Type: Grant
    Filed: August 16, 1978
    Date of Patent: June 24, 1980
    Assignee: Rockwell International Corporation
    Inventors: John R. Wooten, Harry W. Carpenter, Edwin F. C. Cain