Patents Assigned to Evcon International, Ltd.
  • Patent number: 5043064
    Abstract: The present invention discloses an apparatus for removing waste material, such as oil and/or debris, from the surface of water. A pair of hulls are interconnected by a deck structure. A perforated drum has a covering which is typically comprised of an oleophilic material. The covering in an alternative embodiment has bristles or brushes extending therefrom. The drum is mounted on the forward end of the hulls and may be rotated such that the lower end of the drum advances in the same direction as the direction of forward motion of the hulls. A sump is attached to the deck structure and is located between the hulls. A doctor blade contacts the covering of the drum to remove oil or debris from the drum for deposit into the sump. The sump in one embodiment has a liner which may be lifted from the sump when filled. An alternative embodiment utilizes a pump which pumps the collected oil or other waste material in the sump into floating collection containers.
    Type: Grant
    Filed: December 21, 1989
    Date of Patent: August 27, 1991
    Assignee: Evcon International, Ltd.
    Inventors: Homer P. Abell, Warren K. Braun