Patents by Inventor Colin C. Hammond

Colin C. Hammond 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).

  • Method of screening plastics member from electromagnetic interference
    Patent number: 4738875
    Abstract: A plastics member, such as a container, is provided with an electromagnetic screen by coating the inner surfaces with a film of zinc. The inner surfaces are prepared by shot blasting prior to arc spraying the zinc film and the shot blasting is carried out using G17 chilled iron grit at a pressure of 15 to 20 pounds per square inch.
    Type: Grant
    Filed: April 30, 1986
    Date of Patent: April 19, 1988
    Assignee: Deccospray Limited
    Inventors: Colin C. Hammond, Roy E. Meekings