Tandem Agitator Units Patents (Class 15/384)
  • Patent number: 4267617
    Abstract: A new and improved brush for a carpet scrubber with a flat, even continuous outer bristle extremity.
    Type: Grant
    Filed: July 16, 1979
    Date of Patent: May 19, 1981
    Assignee: Milliken Research Corporation
    Inventors: Robert S. Brown, Larry S. Satterfield
  • Patent number: 4163330
    Abstract: An apparatus for disintegrating and removing layers of earth, especially under water, comprising a housing in which at least one volute compartment is formed, which is open on the underside and which accommodates a rotor which comprises disintegrators and which is rotatable about an axis that is at least substantially perpendicular to a plane through the lower edge of the compartment. The rotor is coupled to a drive mechanism, the volute compartment being connected near its throat to a discharge system. The housing may be suspended from a moving device.
    Type: Grant
    Filed: June 14, 1977
    Date of Patent: August 7, 1979
    Inventor: Nicolaas G. Konijn