Road structure – process – or apparatus – Apparatus – With means for profile shaping – e.g. – crown
Patent
1986-05-01
1987-10-27
Pate, III, William F.
Road structure, process, or apparatus
Apparatus
With means for profile shaping, e.g., crown
404118, 152358, E01C 1944
Patent
active
047026413
ABSTRACT:
A multi-purpose concrete working tool can be used to strike off, consolidate, finish, and check a concrete surface to produce a very flat or super flat surface. The tool consists of a rectangular, hollow extruded magnesium blade between 8 and 12 feet long with sharp edges at each side of the bottom working surface. An elongated handle is attached to the blade by means of a pitch adjusting mechanism and lateral braces. Rotation of the handle continuously varies the pitch of the working surface of the blade between 0 and 30 degrees in either direction with respect to the concrete surface without changing the elevation of the handle. The tool weighs in excess of 20 pounds, exerts more than 0.075 psi on the concrete, and has sufficient blade rigidity to be used to strike off and consolidate a concrete surface.
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"Techniques for Building Superflat Floors Demonstrated at World of Concrete", in Concrete Construction, Vol. 31, No. 5, May 1986, pp. 498-499.
Aldridge Steven L.
Naser Charles F.
Atlanta Concrete Accessories Inc.
Pate III William F.
Smith Creighton
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