Patents by Inventor Walter R. Cribb

Walter R. Cribb 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).

  • Rapid quench of large selection precipitation hardenable alloys
    Patent number: 6387195
    Abstract: Large sections of solution annealed, precipitation hardenable alloys which are resistant to internal cracking yet fully hardenable can be produced if, during rapid quenching, the temperature of the section is allowed to stabilize immediately above the alloy's solvus temperature before the section is rapidly quenched. Preferably, the temperature of the section is allowed to stabilize a second time, this time at an elevated temperature not so high that significant phase changes occur, before the section is cooled to ambient.
    Type: Grant
    Filed: November 3, 2000
    Date of Patent: May 14, 2002
    Assignee: Brush Wellman, Inc.
    Inventors: William J. Bishop, Noel M. Brady, Walter R. Cribb, Anatoly A. Offengenden