Patents by Inventor Donald James Frasier

Donald James Frasier 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).

  • Single-cast, high-temperature, thin wall structures
    Patent number: 6255000
    Abstract: Disclosed is a single-cast, thin wall structure capable of withstanding impinging gases at temperatures of 4300° F. and higher, and method of making the same.
    Type: Grant
    Filed: June 7, 1995
    Date of Patent: July 3, 2001
    Assignee: Allison Engine Company, Inc.
    Inventors: Kurt Francis O'Connor, James Paul Hoff, Donald James Frasier, Ralph Edward Peeler, Heidi Mueller-Largent, Floyd Freeman Trees, James Rodney Whetstone, John Henry Lane, Ralph Edward Jeffries
  • Single-cast, high-temperature, thin wall structures and methods of making the same
    Patent number: 6071363
    Abstract: A single-cast, thin wall structure capable of withstanding impinging gases at temperatures of 4300.degree. F. and higher, and method of making the same.
    Type: Grant
    Filed: June 3, 1996
    Date of Patent: June 6, 2000
    Assignee: Allison Engine Company, Inc.
    Inventors: Kurt Francis O'Connor, James Paul Hoff, Donald James Frasier, Ralph Edward Peeler, Heidi Mueller-Largent, Floyd Freeman Trees, James Rodney Whetstone, John Henry Lane, Ralph Edward Jeffries
  • Method and apparatus for producing cast structures
    Patent number: 5641014
    Abstract: The present invention relates to a method and apparatus for producing a cast structure. In one embodiment of the present invention an alloy casting mold has molten alloy injected therein to facilitate completely filling a part cavity within the mold. Further, an alloy charge pressure control device is utilized to reduce the charge pressure of the molten alloy during its injection into the mold cavity to minimize distortion and creep of the ceramic shell. In one form of the present invention the charge pressure control device removes excess alloy so as to reduce the head pressure of the molten alloy thereby eliminating the undesirable creep of the ceramic shell.
    Type: Grant
    Filed: June 7, 1995
    Date of Patent: June 24, 1997
    Assignee: Allison Engine Company
    Inventors: Kurt Francis O'Connor, James Paul Hoff, Donald James Frasier, Ralph Edmund Peeler, Heidi Mueller-Largent, Floyd Freeman Trees, James Rodney Whetstone, John Henry Lane, Ralph Edward Jeffries