Patents by Inventor John Barry Donoghue

John Barry Donoghue 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: 6484421
    Abstract: A snow plow assembly broadly comprises a snow plow blade, a frame for mounting the snow plow blade to a vehicle, and a boom connected to the frame and the snow plow blade. The assembly also includes a lift system for raising and lowering the boom, which lift system includes a lift cable attached to the frame and the boom. The assembly also includes a system for maintaining the lift cable taut so that the snow plow blade remains substantially level during use.
    Type: Grant
    Filed: September 27, 2000
    Date of Patent: November 26, 2002
    Inventor: John Barry Donoghue
  • Patent number: 5974702
    Abstract: The present invention relates to an assembly for mounting a plow, such as a snow plow, to a vehicle. The assembly has a linear support member extending from and attached to the front of the vehicle. The linear support member is pivotable with respect to the central longitudinal axis of the vehicle and has the plow attached to it at its remote end. The assembly further includes devices connected to the linear support member for offsetting the plow from the central longitudinal axis of the vehicle so that the plow is positioned in front of the tire path of and ahead of the direction of travel of the vehicle. The offsetting devices preferably comprise two pairs of piston-cylinder units. A first pair is mounted at one end to the front of the vehicle and at a second end to the linear support member. The second pair is connected at one end to the plow and at a second end to the linear support member.
    Type: Grant
    Filed: June 1, 1998
    Date of Patent: November 2, 1999
    Inventor: John Barry Donoghue