Patents Assigned to Zestful Holdings Limited
  • Patent number: 4879820
    Abstract: An apparatus for removing water from the ground comprises at least one ground-engaging drum including a hollow cylinder mounted for rotation about a substantially horizontal axis, and a plurality of recesses substantially parallel to the rotational axis of the cylinder formed in the outer surface of the cylinder around the periphery thereof. A non-porous sheet of resilient material covers the outer surface of the cylinder, and a plurality of slits are cut in the covering sheet over the recesses in the cylinder. The slits are normally closed but are capable of opening under the pressure of water built up in front of the drum, as the latter is moved across the ground, to permit such water to enter the recesses in the region of ground contact.
    Type: Grant
    Filed: August 3, 1988
    Date of Patent: November 14, 1989
    Assignee: Zestful Holdings Limited
    Inventor: Hugh R. McLaughlin