Patents by Inventor Wayne Penfold

Wayne Penfold 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).

  • Symmetrical traction drive
    Patent number: 8608609
    Abstract: Disclosed is a symmetrical traction drive that utilizes multi-diameter rollers having traction surfaces for transferring rotational mechanical energy between the shaft and a transfer gear. Multi-diameter rollers are mounted in carriers disposed between two substantially symmetrical ring gears. Sloped traction surfaces of the ring gears mate with inner traction surfaces on both sides of the multi-diameter rollers. Since force is applied to the inner traction surfaces on both sides of the multi-diameter rollers, forces are substantially equalized on each side of the multi-diameter rollers. An outer traction surface of the multi-diameter roller interfaces with a traction surface on the shaft. Speed reduction ratios of at least 20:1 or greater can be achieved.
    Type: Grant
    Filed: December 23, 2011
    Date of Patent: December 17, 2013
    Assignee: VanDyne SuperTurbo, Inc.
    Inventors: Ryan Sherrill, Sterling Holman, Ed VanDyne, Wayne Penfold
  • SYMMETRICAL TRACTION DRIVE
    Publication number: 20120165151
    Abstract: Disclosed is a symmetrical traction drive that utilizes multi-diameter rollers having traction surfaces for transferring rotational mechanical energy between the shaft and a transfer gear. Multi-diameter rollers are mounted in carriers disposed between two substantially symmetrical ring gears. Sloped traction surfaces of the ring gears mate with inner traction surfaces on both sides of the multi-diameter rollers. Since force is applied to the inner traction surfaces on both sides of the multi-diameter rollers, forces are substantially equalized on each side of the multi-diameter rollers. An outer traction surface of the multi-diameter roller interfaces with a traction surface on the shaft. Speed reduction ratios of at least 20:1 or greater can be achieved.
    Type: Application
    Filed: December 23, 2011
    Publication date: June 28, 2012
    Inventors: Ryan Sherrill, Sterling Holman, Ed VanDyne, Wayne Penfold