Patents by Inventor Patrick Quinn

Patrick Quinn 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: 6416427
    Abstract: A handicap-calibrated visual sighting device enabling a golfer at the driving range to rate each shot they make in regard to the shots accuracy on a substantially lateral plane for bringing competition to the driving range and providing an entertaining environment that enhances a golfers' concentration and aids in the improvement of the golfers' accuracy.
    Type: Grant
    Filed: July 5, 2000
    Date of Patent: July 9, 2002
    Inventor: John Patrick Quinn
  • Patent number: 6382340
    Abstract: A drive controller for a hydraulic drive system, a three wheeled vehicle having a pair of transversely arranged in line of drive shaft assemblies and a single wheel drive shaft assembly each assembly including a drive unit having two separate drives and has for series operation secondary hydraulic feed lines between one of the drives of the single drive units and one of the drives of each transverse drive unit. A pressure release valve is provided in each secondary line which valve is fed through a non-return valve.
    Type: Grant
    Filed: November 27, 1998
    Date of Patent: May 7, 2002
    Assignee: Moffett Research and Development Limited
    Inventors: Cathal McKenna, Eric O'Keeffe, Andrew William Wylie, Paul Patrick Quinn, Gerard McHugh, Seamus Murchan, Martin Damien McVicar, Gerard Harte
  • Patent number: 6357230
    Abstract: A hydraulic ride control system is disclosed and adapted to control the ride of a machine having a load. The ride control includes an accumulator arrangement that is selectively connected with the actuator that is carrying the load to provide a cushion ride during traveling and to enable the pressure in the accumulator arrangement to be maintained substantially the same as the pressure in the actuator when raising the load and to permit the pressure in the accumulator arrangement to be lowered to that of the pressure in the actuator in the event the load is lessened. The ride control system also provides an arrangement that permits the accumulator arrangement to be bled down whenever the machine becomes disabled or when the machine is shut off.
    Type: Grant
    Filed: December 16, 1999
    Date of Patent: March 19, 2002
    Assignee: Caterpillar Inc.
    Inventors: Michael A. A'Hearn, David J. Carlson, Thomas J. Hajek, Jr., Andy Hatcher, Michael D. Hudson, Patrick Quinn, Srikrishnan T. Tolappa
  • Patent number: 6167701
    Abstract: A variable rate ride control is disclosed and adapted to control the ride of a machine having varying load conditions. The variable rate ride control system includes an accumulator arrangement selectively connectable to an actuator arrangement of the machine. The accumulator arrangement has a variable pressure rate so that the accumulator arrangement can adapt to varying load conditions.
    Type: Grant
    Filed: July 6, 1998
    Date of Patent: January 2, 2001
    Assignee: Caterpillar Inc.
    Inventors: Andrew Hatcher, Patrick Quinn