Patents by Inventor James C. Vaughn

James C. Vaughn 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).

  • Discoloration resistant polypropylene blend
    Patent number: 6911492
    Abstract: The present invention provides a thermoformable polymer blend that resists surface discoloration when exposed to acidic environments, such as exist within a clothes treating apparatus having an interior region into which is introduced a conditioning composition comprising from about 0.001% to about 10% of a diethylene glycol, from about 0.01% to about 10% of a beta cyclodextrin, from about 0.001% to about 5% of a surfactant, from about 0% to about 2% of a preservative, and the balance water. The discoloration resistant thermoformable polymer blend according to the invention includes: (A) a polymer package including a blend of: (Ai) one or more homopolymers and/or copolymers of polypropylene; (Aii) one or more polymers of vinyl aromatic monomers; (Aiii) one or more block polymers; and (Aiv) one or more styrene-maleic anhydride copolymers; (B) a surface treated mineral filler; (C) an antioxidant package; (D) a zinc-based lubricant; and (E) optionally, a titanium dioxide based colorant system.
    Type: Grant
    Filed: January 16, 2003
    Date of Patent: June 28, 2005
    Assignee: Ferro Corporation
    Inventors: Brian D. Keener, Deenadayalu Chundury, Thomas L. McElyea, J. R. Seymour, Curtis A. Hofmann, James C. Vaughn, L. Steven Edge
  • Discoloration resistant polypropylene blend
    Publication number: 20040143047
    Abstract: The present invention provides a thermoformable polymer blend that resists surface discoloration when exposed to acidic environments, such as exist within a clothes treating apparatus having an interior region into which is introduced a conditioning composition comprising from about 0.001% to about 10% of a diethylene glycol, from about 0.01% to about 10% of a beta cyclodextrin, from about 0.001 % to about 5% of a surfactant, from about 0% to about 2% of a preservative, and the balance water.
    Type: Application
    Filed: January 16, 2003
    Publication date: July 22, 2004
    Applicant: Ferro Corporation
    Inventors: Brian D. Keener, Deenadayalu Chundury, Thomas L. McElyea, J. R. Seymour, Curtis A. Hofmann, James C. Vaughn, L. Steven Edge
  • Muzzle loading firearm
    Patent number: 4283874
    Abstract: A muzzle loading firearm in which firing is effected by a shot shell primer positioned within an ignition chamber and fired through a loosely locked but protective cup.
    Type: Grant
    Filed: December 3, 1979
    Date of Patent: August 18, 1981
    Inventor: James C. Vaughn
  • Muzzle loading firearm
    Patent number: 4114303
    Abstract: A muzzle loading firearm in which firing is effected by a shot shell primer positioned within an ignition chamber.
    Type: Grant
    Filed: August 12, 1977
    Date of Patent: September 19, 1978
    Inventor: James C. Vaughn