Patents by Inventor Mervyn John George Patterson

Mervyn John George Patterson 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).

  • Variator control system
    Patent number: 6030310
    Abstract: A variator assembly comprises a variator of the toroidal-race rolling-traction type using double-acting pistons to control the rollers and differential end load pressure to load the variator, and control means operative to vary the differential end load pressure in sympathy with changes in the net pressure exerted by the roller-control pistons so as to maintain the traction coefficient at the roller disc interface consistently below the limit at which traction would be lost.
    Type: Grant
    Filed: October 16, 1998
    Date of Patent: February 29, 2000
    Assignee: Torotrak (Development) Limited
    Inventors: Christopher John Greenwood, Masaki Inui, Mervyn John George Patterson, Yudai Tatara
  • Roller assembly
    Patent number: 5971885
    Abstract: A roller assembly (10) for use in a toroidal-race rolling-traction variator or like device includes a roller mounted in a carriage (19) which is provided with passageways (33) so that cooling oil from the variator lubrication circuit can be sprayed on to the roller rim via apertures in the carriage and/or in two specially-located spray-bars 38,39 extending from the carriage.
    Type: Grant
    Filed: September 30, 1998
    Date of Patent: October 26, 1999
    Assignee: Torotrak (Development) Limited
    Inventors: Christopher John Greenwood, Leslie Kendrick Robinson, Mervyn John George Patterson