Patents by Inventor Roy C. Feagin

Roy C. Feagin 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).

  • Ceramic shell molds and cores for casting of reactive metals
    Patent number: 5944088
    Abstract: Mold coatings that are relatively unreactive with titanium and titanium alloys during casting are prepared from yttria slurries, which may contain other refractory materials, an acid and an inert organic solvent.
    Type: Grant
    Filed: November 4, 1997
    Date of Patent: August 31, 1999
    Assignee: Remet Corporation
    Inventor: Roy C. Feagin
  • Method for making ceramic shell molds and cores
    Patent number: 5738819
    Abstract: A process for making a casting mold or core utilizes a refractory composition including a slurry of yttria, an acid and an organic solvent. The composition is applied to a mold or pattern, dried, and fired to produce a mold or a layer of a mold or core. The articles produced are relatively unreactive with titanium and titanium alloys during casting.
    Type: Grant
    Filed: June 1, 1995
    Date of Patent: April 14, 1998
    Assignee: Remet Corporation
    Inventor: Roy C. Feagin
  • Ceramic cores for casting of reactive metals
    Patent number: 5712435
    Abstract: Cores that are relatively unreactive with titanium and titanium alloys during casting are prepared from yttria slurries, which may contain other refractory materials, an acid and an inert organic solvent.
    Type: Grant
    Filed: June 1, 1995
    Date of Patent: January 27, 1998
    Assignee: Remet Corporation
    Inventor: Roy C. Feagin
  • Ceramic shell molds and cores for casting of reactive metals
    Patent number: 5630465
    Abstract: Mold coatings that are relatively unreactive with titanium and titanium alloys during casting are prepared from yttria slurries, which may contain other refractory materials, an acid and an inert organic solvent.
    Type: Grant
    Filed: June 1, 1995
    Date of Patent: May 20, 1997
    Assignee: Remet Corporation
    Inventor: Roy C. Feagin
  • Ceramic shell compositions for casting of reactive metals
    Patent number: 5535811
    Abstract: Mold coatings that are relatively unreactive with titanium and titanium alloys during casting are prepared from yttria slurries, which may contain other refractory materials, an acid and an inert organic solvent.
    Type: Grant
    Filed: January 28, 1987
    Date of Patent: July 16, 1996
    Assignee: Remet Corporation
    Inventor: Roy C. Feagin
  • Refractory material
    Patent number: 5004039
    Abstract: Refractory compositions comprising an acid stabilized aqueous zirconia sol and an active refractory material in an amount effective to gel said sol. A relatively non-active refractory material may also be present. The refractory mix can be made into molded articles or used to form casting molds. Methods of making fired refractory molds and methods of metal casting are disclosed.
    Type: Grant
    Filed: March 9, 1989
    Date of Patent: April 2, 1991
    Assignee: Remet Corporation
    Inventor: Roy C. Feagin
  • Casting of reactive metals into ceramic molds
    Patent number: 4787439
    Abstract: The invention concerns a composition for making a coating consisting essentially of a refractory material selected from the group consisting of yttrium oxide, zirconium oxide, fused yttrium oxide, fused zirconium oxide, fused stabilized zirconium oxide, and fused mixtures of zirconium oxide and yttrium oxide; and a sufficient amount of an yttria sol binder. The composition can be used to prepare refractory materials, casting and core molds.
    Type: Grant
    Filed: November 24, 1986
    Date of Patent: November 29, 1988
    Assignee: Remet Corporation
    Inventor: Roy C. Feagin
  • Casting of reactive metals into ceramic molds
    Patent number: 4740246
    Abstract: Mold coatings that are relatively unreactive with titanium and titanium alloys during casting are prepared from zirconia or yttria sols, or mixtures thereof as a binder for a refractory such as zirconium oxide, yttrium oxide and mixtures thereof.
    Type: Grant
    Filed: November 24, 1986
    Date of Patent: April 26, 1988
    Assignee: Remet Corporation
    Inventor: Roy C. Feagin
  • Refractory material
    Patent number: 4504591
    Abstract: A refractory mix comprising an acid stabilized aqueous zirconia sol and an active refractory material in an amount effective to gel said sol and articles prepared therefrom.
    Type: Grant
    Filed: April 21, 1983
    Date of Patent: March 12, 1985
    Assignee: Remet Corporation
    Inventor: Roy C. Feagin
  • Refractory material
    Patent number: 4415673
    Abstract: There is provided a refractory mix comprising an acid stabilized aqueous zirconia sol and an active refractory material in an amount effective to gel said sol.
    Type: Grant
    Filed: March 23, 1981
    Date of Patent: November 15, 1983
    Assignee: Remet Corporation
    Inventor: Roy C. Feagin
  • Method of making a ceramic shell mold
    Patent number: 4216815
    Abstract: Method for making a novel shell mold for use in directional solidification and for casting alloys containing reacting components, wherein a binder comprising a non-fibrous aqueous acidic dispersion of alumina monohydrate and being essentially free of silica, is employed. The resultant shell mold is particularly suitable for the casting of nickel and cobalt based alloys containing relatively reactive constituents such as zirconium, aluminum and titanium.
    Type: Grant
    Filed: July 3, 1978
    Date of Patent: August 12, 1980
    Inventor: Roy C. Feagin
  • Ceramic shell mold
    Patent number: 4196769
    Abstract: Method for making a novel shell mold for use in directional solidification and for casting alloys containing reactive components, wherein a binder comprising a fibrous colloidal alumina in aqueous dispersion and being essentially free of silica, is employed. The resultant shell mold is particularly suitable for the casting of nickel and cobalt based alloys containing relatively reactive constituents such as zirconium, alumina and titanium.
    Type: Grant
    Filed: March 20, 1978
    Date of Patent: April 8, 1980
    Assignee: Remet Corporation
    Inventor: Roy C. Feagin