Patents by Inventor Donald Rexford

Donald Rexford 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).

  • Patent number: 5997802
    Abstract: A sintered metal ceramic crucible suitable for high temperature induction melting of reactive metals without appreciable carbon or silicon contamination of the melt. The crucible comprises a cast matrix of a thermally conductive ceramic material; a perforated metal sleeve, which serves as a susceptor for induction heating of the crucible, embedded within the ceramic cast matrix; and a thermal-shock-absorber barrier interposed between the metal sleeve and the ceramic cast matrix to allow for differential thermal expansions between the matrix and the metal sleeve and to act as a thermal-shock-absorber which moderates the effects of rapid changes of sleeve temperature on the matrix.
    Type: Grant
    Filed: November 25, 1998
    Date of Patent: December 7, 1999
    Assignee: The United States of America as represented by the United States Department of Energy
    Inventors: Cressie E. Holcombe, Jr., James O. Kiggans, Jr., S. Marvin Morrow, Donald Rexford
  • Patent number: D903426
    Type: Grant
    Filed: February 22, 2019
    Date of Patent: December 1, 2020
    Inventor: Donald Rexford Loomis