Patents Assigned to Bouwmachinefabriek Lievers B.V.
  • Patent number: 6231331
    Abstract: A vibratory screed device for levelling freshly poured concrete surfaces consists of an elongated vibrated screed beam delimited by a flat underside, a first and a second longitudinal side and a top; of a vibratory assembly for bringing the vibrated screed beam into vibration; and of a handle assembly which can be fixed in a detachable manner to the vibrated screed beam at an upward slope with respect to the flat underside. The first and the second longitudinal side are differently profiled and each has a surface suitable for vibratory levelling. The handle assembly can be fixed to the vibrated screed beam in two positions, in the one position sloping upwards obliquely at the first longitudinal side in order to make the first longitudinal side the active surface and in the second position sloping upwards obliquely at the second longitudinal side in order to make the second longitudinal side the active surface.
    Type: Grant
    Filed: December 14, 1998
    Date of Patent: May 15, 2001
    Assignee: Bouwmachinefabriek Lievers B.V.
    Inventor: Johannes Franciscus Lievers