Patents by Inventor Mark H. Hamilton

Mark H. Hamilton 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).

  • Patent number: 7775314
    Abstract: A two-wheel drive motorcycle, or all wheel drive bicycle, has a spring loaded shock absorbing suspension and traction system for the front wheel. A swing arm, rather than the front steering fork, is mounted to the front wheel axle. A modified steering fork is mounted to the swing arm and a shock absorber extends between the front steering fork weldment and the swing arm. The shock absorber allows the front wheel axle to move upward relative to the front steering fork and motorcycle (or bicycle) in general to absorb upward shocks on the front wheel, and also pushes the wheel downward, thereby improving traction. The front chain drive includes two chains in series which are isolated from excessive shock forces.
    Type: Grant
    Filed: February 14, 2008
    Date of Patent: August 17, 2010
    Inventors: Thomas E. Blais, Mark H. Hamilton
  • Publication number: 20090205895
    Abstract: A two-wheel drive motorcycle, or all wheel drive bicycle, has a spring loaded shock absorbing suspension and traction system for the front wheel. A swing arm, rather than the front steering fork, is mounted to the front wheel axle. A modified steering fork is mounted to the swing arm and a shock absorber extends between the front steering fork weldment and the swing arm. The shock absorber allows the front wheel axle to move upward relative to the front steering fork and motorcycle (or bicycle) in general to absorb upward shocks on the front wheel, and also pushes the wheel downward, thereby improving traction. The front chain drive includes two chains in series which are isolated from excessive shock forces.
    Type: Application
    Filed: February 14, 2008
    Publication date: August 20, 2009
    Inventors: Thomas E. Blais, Mark H. Hamilton
  • Publication number: 20080035403
    Abstract: A dual wheel drive motorcycle includes a transmission that receives power and torque produced by the engine and, through multiple gears, provides power and torque to a rear wheel drive line and a front wheel drive line. The motorcycle is provided with an expendable and replaceable, torque overload component for both the rear wheel drive mechanism and the front wheel drive mechanism. The torque overload component is preferably a shear pin that is externally exposed and easily replaceable in the field. The transmission and front and rear drive lines are designed using keys, pins and adhesive to have sufficient torque capacity so that connections between these components can withstand greater torque loads than the torque overload components, thus protecting the internal components from failure due to shock loads during off-road or sporting uses. A safety factor of at least 1.5 is desirable in order to isolate failures within the externally accessible torque overload components.
    Type: Application
    Filed: August 14, 2006
    Publication date: February 14, 2008
    Inventor: Mark H. Hamilton
  • Patent number: 5301402
    Abstract: A machine for automatically joining front and back parts of buttons employs a turntable with nests that are rotated through a series of stations at which the parts are placed in the nests in a desired orientation, joined, and checked for defects. Orientation of the parts is achieved by video imaging of a first part as it is randomly placed in a nest, and computer-controlled placement of the second part based on the ascertained position of the first part.
    Type: Grant
    Filed: January 31, 1991
    Date of Patent: April 12, 1994
    Assignee: Waterbury Companies, Inc.
    Inventors: Charles E. Noel, Mark H. Hamilton, Timothy P. White
  • Patent number: 5267511
    Abstract: A device is disclosed for pressing objects by lifting the objects into a waiting pressing shaft. The shaft includes a forming element at its lower end for forming the object, and the shaft is engaged by its upper end through a pivot member to an air cylinder in a manner which provides a force advantage to the air cylinder. Also, a system for pressing objects is disclosed, in which the press device is employed in conjunction with a turntable for sequential and continuous pressing operations.
    Type: Grant
    Filed: May 2, 1991
    Date of Patent: December 7, 1993
    Assignee: Waterbury Companies, Inc.
    Inventors: Charles E. Noel, Mark H. Hamilton