Patents by Inventor Kenneth Haan

Kenneth Haan 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: 20150367909
    Abstract: A dual drive bicycle is provided having a front wheel, hand-cranked drive train including at least two pairs of a drive sprocket and driven sprocket, thereby allowing the diameter of the drive sprocket in the handlebar area to be made much smaller, thereby reducing the exposure of the hands and face of the rider to the sprocket teeth and chains of the front wheel drive train. The multiple pairs of drive sprockets and driven sprockets are mounted on a dual crown front fork that safely allows the use of a wider front hub without introducing unsafe bending stresses into the forks, and greatly facilitates the addition of the front wheel drive train of the invention to any bicycle. The invention also encompasses a steering assembly kit that converts a conventional bicycle to the dual drive bicycle of the invention by adding the front wheel drive train of the invention to a conventional bicycle.
    Type: Application
    Filed: June 19, 2015
    Publication date: December 24, 2015
    Inventor: Kenneth Haan
  • Patent number: 5472392
    Abstract: A centrifugal resistance device for stationary exercise apparatus that is operatively associated with a rotatable shaft; the centrifugal resistance device comprises a slotted ring, braking material and a fixed cover means; the slots of the slotted ring house friction material that is free to move radially and act frictionally against the fixed cover means positioned about the slotted ring, the fixed cover means is fashioned by those skilled in the art as to act also as a heat dissipating means; tension is varied by increasing or decreasing the RPMs of the rotatable axle.
    Type: Grant
    Filed: July 15, 1994
    Date of Patent: December 5, 1995
    Inventors: Kenneth Haan, Cal M. Phillips
  • Patent number: 5397285
    Abstract: A centrifugal resistance device for stationary exercise apparatus that is operatively associated with a rotatable shaft; the centrifugal resistance device comprises a slotted ring, braking material and a fixed cover; the slots of the slotted ring house friction material that is free to move radially and act frictionally against the fixed cover positioned about the slotted ring, the fixed cover is fashioned by those skilled in the art as to act also as a heat dissipating device; tension is varied by increasing or decreasing the RPMs of the rotatable axle.
    Type: Grant
    Filed: September 8, 1993
    Date of Patent: March 14, 1995
    Inventors: Kenneth Haan, Cal M. Phillips