Patents by Inventor David Michael Harwood

David Michael Harwood 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: 6708776
    Abstract: A turf manicuring apparatus for enabling dragging of a drag tool such as a net behind a tractor operating across a turf. The apparatus comprises (a) a frame including a rod longitudinally centered about an axis, at least one lift member extending transversely from the rod, and a device for suspending a drag tool from the rod; (b) at least one support member connectable to the tractor and extending away from the tractor to form a receptacle adapted to receive the rod and allow rotation of the rod about the axis, with the support member being adapted to support the frame in an elevated position rearward of the tractor so that the rod is disposed transverse to the direction of movement in a plane substantially parallel with the turf beneath the tractor; (c) a device for rotating the frame about the axis, thus raising and lowering the lift member; and (d) an actuator controllably connected to the device for rotating.
    Type: Grant
    Filed: July 19, 2001
    Date of Patent: March 23, 2004
    Inventor: David Michael Harwood
  • Publication number: 20030015329
    Abstract: Disclosed herein is a turf manicuring apparatus for enabling more efficient dragging of a drag tool such as a net behind a tractor operating across a turf.
    Type: Application
    Filed: July 19, 2001
    Publication date: January 23, 2003
    Inventor: David Michael Harwood