Patents by Inventor Darryl J. Costin

Darryl J. Costin 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).

  • Refractories and methods of making same
    Patent number: 4107450
    Abstract: It has been discovered that refractories at their elevated use temperatures have electrical properties unique to semi-conductors. The electrical conductivity of refractories is changed by altering the defects in the metallic or nonmetallic ions of the refractory lattice, and the purity is controlled to prevent fluxing from occurring at the grain boundaries. The discovery makes possible either the increase or decrease in electrical conductivity of any semi-conducting refractory, since the theory is applicable to both materials wherein the defects occur in the metal ions of the refractory lattice and also to materials wherein the defects occur in the nonmetallic ions of the refractory lattice.
    Type: Grant
    Filed: March 17, 1977
    Date of Patent: August 15, 1978
    Assignee: Owens-Corning Fiberglas Corporation
    Inventor: Darryl J. Costin
  • Refractories and methods of making same
    Patent number: 4052339
    Abstract: It has been discovered that refractories at their elevated use temperatures have electrical properties unique to semi-conductors. The electrical conductivity of refractories is changed by altering the defects in the metallic or nonmetallic ions of the refractory lattice, and the purity is controlled to prevent fluxing from occurring at the grain boundaries. The discovery makes possible either the increase or decrease in electrical conductivity of any semi-conducting refractory, since the theory is applicable to both materials wherein the defects occur in the metal ions of the refractory lattice and also to materials wherein the defects occur in the nonmetallic ions of the refractory lattice.
    Type: Grant
    Filed: June 10, 1974
    Date of Patent: October 4, 1977
    Assignee: Owens-Corning Fiberglas Corporation
    Inventor: Darryl J. Costin
  • Platinum-rhodium alloys having low creep rates
    Patent number: 4014692
    Abstract: Platinum-rhodium alloys containing small amounts of boron and zirconium have low creep rates and high resistance to glass corrosion making the alloys particularly suitable for glass-fiberizing bushings.
    Type: Grant
    Filed: January 9, 1976
    Date of Patent: March 29, 1977
    Assignee: Owens-Corning Fiberglas Corporation
    Inventor: Darryl J. Costin
  • High strength corrosion resistant cobalt-base superalloy
    Patent number: 3984240
    Abstract: A cobalt-base alloy, particularly suitable for high temperature molten glass environments, and articles manufactured from the alloy, preferably by casting, are disclosed.
    Type: Grant
    Filed: July 28, 1975
    Date of Patent: October 5, 1976
    Assignee: Owens-Corning Fiberglas Corporation
    Inventor: Darryl J. Costin
  • Ultra high strength, carbide-strengthened, cobalt-base superalloy
    Patent number: 3980473
    Abstract: A cobalt-base alloy, particularly suitable for high temperature molten glass environments, and articles manufactured from the alloy, preferably by casting, are disclosed.
    Type: Grant
    Filed: July 28, 1975
    Date of Patent: September 14, 1976
    Assignee: Owens-Corning Fiberglas Corporation
    Inventor: Darryl J. Costin
  • Cobalt-base alloy
    Patent number: 3933484
    Abstract: A cobalt-base alloy, particularly suitable for high temperature molten glass environments, and articles manufactured from the alloy, preferably by casting, are disclosed.
    Type: Grant
    Filed: May 31, 1974
    Date of Patent: January 20, 1976
    Assignee: Owens-Corning Fiberglas Corporation
    Inventor: Darryl J. Costin