Patents by Inventor Graham Briffett

Graham Briffett 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).

  • PUNCH TOOL
    Publication number: 20120204695
    Abstract: The invention provides a punch tool in which heat production by running of the tool is reduced.
    Type: Application
    Filed: February 11, 2011
    Publication date: August 16, 2012
    Applicant: Cilag GmbH International
    Inventors: Ian Johns, Graham Briffett, John Scott
  • Fluid supply arrangement for a rolling-traction continuously variable ratio transmission unit
    Patent number: 7491149
    Abstract: A fluid display arrangement is disclosed for a rolling-traction continuously-variable ratio transmission unit in which drive is transmitted from one race to another by at least one rotating roller whose outer circumference engages the races, the fluid supply arrangement comprising a shroud mounted in proximity to the roller and a fluid supply conduit, and being characterised in that the shroud has an inner surface providing a circumferential portion adjacent the roller's outer circumference and two radially extending portions adjacent respective flanks of the roller, a fluid receiving chamber being thereby defined between the roller and the shroud, and the fluid supply conduit being arranged to deliver fluid into the fluid receiving chamber.
    Type: Grant
    Filed: January 24, 2003
    Date of Patent: February 17, 2009
    Assignee: Torotrak (Development) Limited
    Inventors: Christopher John Greenwood, Robert John Bonner Flaxman, Graham Briffett, Ian MacPherson
  • Fluid supply arrangement for a rolling-traction continuously variable ratio transmission unit
    Publication number: 20050143216
    Abstract: A fluid display arrangement is disclosed for a rolling-traction continuously-variable ratio transmission unit in which drive is transmitted from one race to another by at least one rotating roller whose outer circumference engages the races, the fluid supply arrangement comprising a shroud mounted in proximity to the roller and a fluid supply conduit, and being characterised in that the shroud has an inner surface providing a circumferential portion adjacent the roller's outer circumference and two radially extending portions adjacent respective flanks of the roller, a fluid receiving chamber being thereby defined between the roller and the shroud, and the fluid supply conduit being arranged to deliver fluid into the fluid receiving chamber.
    Type: Application
    Filed: January 24, 2003
    Publication date: June 30, 2005
    Inventors: Christopher Greenwood, Robert John Flaxman, Graham Briffett, Ian MacPherson