Patents by Inventor Roy K. Frazier

Roy K. Frazier 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).

  • Portable vibratory wet screed
    Patent number: 5857803
    Abstract: A portable vibratory concrete screed is disclosed. The concrete screed includes a screed blade including a flat bottom wall extending between a front edge of the screed blade and a rear edge of the screed blade. The screed also includes a vibratory assembly, with an eccentric weight, coupled to the screed blade, wherein the eccentric weight rotates in a plane which is oblique to the bottom wall of the screed blade. Finally, the screed includes a handle assembly extending from the vibratory assembly and coupling a motor to the vibratory assembly to drive the eccentric weight and vibrate the screed blade.
    Type: Grant
    Filed: February 26, 1997
    Date of Patent: January 12, 1999
    Inventors: Larry L. Davis, Roy K. Frazier