Patents by Inventor Calvin John Llewelyn Williams

Calvin John Llewelyn Williams 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).

  • Publication number: 20170297648
    Abstract: A human-propellable vehicle is described and comprises a chassis and a roller assembly mounted at or towards the rear of the chassis. The roller assembly is positioned to engage with a wheel of a second vehicle to permit the second vehicle to push the human-propellable vehicle.
    Type: Application
    Filed: September 18, 2015
    Publication date: October 19, 2017
    Inventors: Calvin John Llewelyn Williams, Paul Howard Davies
  • Publication number: 20170291657
    Abstract: The present invention relates to a human-propellable vehicle comprising a chassis and a footplate for receiving a rider's feet. The footplate is movably mounted to the chassis so that at least part of the footplate can be deflected up towards the rider in the event of a collision between the underside of the footplate and an object or terrain passing under the chassis.
    Type: Application
    Filed: September 18, 2015
    Publication date: October 12, 2017
    Inventors: Calvin John Llewelyn Williams, Paul Howard Davies
  • Publication number: 20170088231
    Abstract: A human-propellable vehicle (1) is described which comprises a chassis (2), and a rear wheel assembly (5) mounted to a rear portion of the chassis. The rear wheel assembly comprises a double wishbone suspension assembly, each wishbone (14, 22) of the double wishbone suspension assembly being coupled to the chassis at first and second coupling points, the second coupling point for each wishbone being closer to the rear of the chassis, and closer to the longitudinal axis of the vehicle, than the first coupling point for that wishbone. By using a double wishbone set up at the rear of the bike it is possible to control weight transfer more efficiently. By providing a second coupling point for each wishbone which is closer to the rear of the chassis, and closer to the longitudinal axis of the vehicle, than the first coupling point for that wishbone, it is possible to utilise a setup without having to adopt a higher seating position and without having to increase the rear wheel track beyond an acceptable width.
    Type: Application
    Filed: April 29, 2015
    Publication date: March 30, 2017
    Inventors: Calvin John Llewelyn Williams, Paul Howard Davies
  • Patent number: D775282
    Type: Grant
    Filed: December 18, 2014
    Date of Patent: December 27, 2016
    Inventors: Calvin John Llewelyn Williams, Paul Howard Davies
  • Patent number: D783726
    Type: Grant
    Filed: December 31, 2015
    Date of Patent: April 11, 2017
    Inventors: Calvin John Llewelyn Williams, Paul Howard Davies