Patents by Inventor Godfrey Chambers

Godfrey Chambers 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).

  • Water reducible artists'
    Patent number: 5421875
    Abstract: This invention provides a water-reducible oil paint, capable of maintaining a stable suspension of coloring pigment during storage, and having the mechanical, coloring and drying properties of a traditional oil paint and methods for making same. The oil paint comprises a pigment, a base gel composition and an emulsifier-amine soap composition; the base gel composition comprises a traditional drying or semi-drying oil or oil acid, a nonionic or mixed nonionic-anionic emulsifier, having an HLB value in the range of from about 8 to about 18, and a thixotropic gel stabilizer; the emulsifier-amine soap compositon comprises at least one amine soap of an acid, selected from mono- and di-unsaturated drying oil acids, and a nonionic or mixed nonionic-anionic emulsifier. In another embodiment of the invention, the oil paint comprises at least one pigment, a complementary stabilizer, an emulsifier, a polymeric dispersant, a traditional stabilizer, optionally a wetting agent, and a drying oil.
    Type: Grant
    Filed: May 17, 1994
    Date of Patent: June 6, 1995
    Assignee: M. Grumbacher, Inc.
    Inventors: Godfrey Chambers, Wayne M. Hoyte, George J. Stegmeir
  • Water reducible artists' oil paints compositions
    Patent number: 5312482
    Abstract: This invention provides a water-reducible oil paint, capable of maintaining a stable suspension of coloring pigment during storage, and having the mechanical, coloring and drying properties of a traditional oil paint. The oil paint comprises a pigment, a base gel composition and an emulsifier- amine soap composition; the base gel composition comprises a traditional drying or semi-drying oil or oil acid, a nonionic or mixed nonionic-anionic emulsifier, having an HLB value in the range of from about 8 to about 18, and a thixotropic gel stabilizer; the emulsifier-amine soap composition comprises at least one amine soap of an acid, selected from mono- and di-unsaturated drying oil acids, and a nonionic or mixed nonionic-anionic emulsifier. The preferred embodiment of this invention is a high-solids artists' oil paint.
    Type: Grant
    Filed: August 21, 1992
    Date of Patent: May 17, 1994
    Assignee: M. Grumbacher, Inc.
    Inventors: Godfrey Chambers, Wayne M. Hoyte, George J. Stegmeir