Means To Form Groove In Plastic Or Uncured Roadway Patents (Class 404/89)
  • Patent number: 3936210
    Abstract: A concrete finishing tool has a detachable accessory secured to float member of the tool, the accessory including an elongated concrete member extending in the direction of movement of the float member, and structure is employed for securing the elongated member at opposed edges of the float member.
    Type: Grant
    Filed: November 13, 1974
    Date of Patent: February 3, 1976
    Inventor: Erwin L. Oehlerking
  • Patent number: 3936209
    Abstract: The method for texturing concrete comprises pouring uncured concrete into a form or upon a supporting surface troweling the concrete to a relatively smooth surface, and moving a texturing pad across the surface. The texturing pad comprises a backing material and a plurality of tufted clusters arranged in a matrix of rows. The clusters each comprise a base attached to the downwardly presented surface of the backing material and a plurality of blades extending downwardly therefrom to engage the concrete while moving there across. Each of the tufts is formed from a plastic material and is of unitary construction.
    Type: Grant
    Filed: March 7, 1974
    Date of Patent: February 3, 1976
    Assignee: Russell B. Dickinson
    Inventor: Colonel F. Krage