Roller screed
OwnerJoe M. Owensinventor
Life of this patent
Estimating the term…
Abstract
A portable screed for smoothing and leveling an area of freshly poured concrete. The screed includes a cylindrical, horizontal smoothing roller secured to the screed plate for the screed, the roller being substantially coextensive with the screed plate. The roller is mounted immediately adjacent the screed so that the roller first encounters and smooths concrete before the screed plate passes over the concrete. The roller is adjustable to control its working of the concrete, and rotates about its axis in a direction opposite to the direction of travel of the screed for proper smoothing of the concrete.
Claims11
A portable screed for smoothing and leveling an area of freshly poured concrete, the screed having an elongated screed plate with a flat bottom bearing surface and having means extending at one side of the screed plate along the length of the screed plate for accumulating and transporting quantities of plastic concrete, the improvement comprising
- a. a cylindrical horizontal smoothing roller secured to the screed plate, said roller having a length substantially coextensive with the length of the screed plate,
- b. means rigidly mounting said roller in relation to said screed plate immediately adjacent and in front of said means for accumulating and transporting, such that when the screed is used to smooth and level concrete, said roller encounters portions of plastic concrete before said means for accumulating and transporting encounters such portions,
- c. means for adjusting the elevation of said roller relative to the bottom bearing surface of said screed plate, and
- d. means for rotating said roller about its axis in a direction opposite to the direction of travel of the screed.
Dependencies are inferred from the claim text.