Patents by Inventor Patrick Chi-Tak Cheung

Patrick Chi-Tak Cheung 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).

  • Automatic deflashing RRIM
    Patent number: 7704023
    Abstract: A cutting tool assembly is provided for removing flash portions and gates from a molded article. The cutting tool assembly includes a holder device including an upper plate, a cylindrical collar, and a bearing disposed between the upper plate and the cylindrical collar to allow movement of the cylindrical collar relative to the upper plate. The cutting tool assembly further includes a cutting member fixedly secured to the cylindrical collar wherein movement of the cylindrical collar relative to the upper plate provides the cutting member with degrees of rotational freedom to float relative to the molded article during trimming of the flash portions and gates.
    Type: Grant
    Filed: July 11, 2007
    Date of Patent: April 27, 2010
    Assignee: Magna International Inc.
    Inventors: Patrick Chi-Tak Cheung, Paul Arthur Trudeau
  • Automatic Deflashing RRIM
    Publication number: 20080011142
    Abstract: A cutting tool assembly is provided for removing flash portions and gates from a molded article. The cutting tool assembly includes a holder device including an upper plate, a cylindrical collar, and a bearing disposed between the upper plate and the cylindrical collar to allow movement of the cylindrical collar relative to the upper plate. The cutting tool assembly further includes a cutting member fixedly secured to the cylindrical collar wherein movement of the cylindrical collar relative to the upper plate provides the cutting member with degrees of rotational freedom to float relative to the molded article during trimming of the flash portions and gates.
    Type: Application
    Filed: July 11, 2007
    Publication date: January 17, 2008
    Inventors: Patrick Chi-Tak Cheung, Paul Arthur Trudeau