Patents by Inventor Gareth D. Crapper

Gareth D. Crapper 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).

  • Powder coating composition having a mixture of first and second component powder coating compositions.
    Patent number: 6921559
    Abstract: A powder coating composition comprises a mixture of first and second component powder coating compositions which are separate, preferably widely separated, in a triboelectric reference series indicative of the extent to which powder coating compositions may be distinguishable from one another when electrically charged. The mixed powder coating composition is especially suitable for coating articles having recessed portions. A quantitative basis is given for determining the separation of the individual component compositions in the triboelectric reference series, and preferred minimum separation criteria are given.
    Type: Grant
    Filed: February 8, 2001
    Date of Patent: July 26, 2005
    Assignee: International Coatings Limited
    Inventors: Martyn P. Care, Gareth D. Crapper, Kevin J. Kittle
  • Powder coating compositions
    Publication number: 20030190435
    Abstract: A powder coating composition comprises a mixture of first and second component powder coating compositions which are separated, preferably widely separated, in a triboelectric reference series indicative of the extent to which powder coating compositions may be distinguishable from one another when electrically charged. The mixed powder coating composition is especially suitable for coating articles having recessed portions. A quantitative basis is given for determining the separation of the individual component compositions in the triboelectric reference series, and preferred minimum separation criteria are given.
    Type: Application
    Filed: November 25, 2002
    Publication date: October 9, 2003
    Inventors: Martyn P. Care, Gareth D. Crapper, Kevin J Kittle