Patents by Inventor Lambert Hendricks

Lambert Hendricks 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: 4828426
    Abstract: A device for manually, repetitively imprinting a surface pattern in fresh concrete, comprising: a plurality of blades secured together to form an imprinting unit, lower edges thereof to form the desired pattern when pressed into the levelled surface of fresh concrete; bar handle means to be secured transversely to upper portions of the blades and to extend laterally beyond the perimeter of the imprinting unit to facilitate manual operation of the device; and levelling means secured to and cooperating with the handle means for adjustably vertically positioning the blades of the device with respect to the surface to be imprinted. This device is practical for multiple, fast, repetitive impressions of patterns, in aligned, regular fashion, for example to form linearly and laterally aligned patterns in the surfaces of sidewalks or driveways.
    Type: Grant
    Filed: February 5, 1988
    Date of Patent: May 9, 1989
    Inventors: Lambert Hendricks, Angelo Gil, Robert J. LeClair