E - Fixed Constructions – 01 – C
Patent
E - Fixed Constructions
01
C
94/44
E01C 19/40 (2006.01)
Patent
CA 1203707
A VIBRATORY SCREED INCLUDING A SPREADING DEVICE FOR LEVELING AND DISTRIBUTING PLASTIC CONCRETE IN FRONT OF THE SCREED ABSTRACT A vibratory concrete screed includes a frame having first and second ends and a length equal to or greater than the width of plastic concrete to be finished. A screed blade is coupled to the screed frame and engages the full width of the plastic con- crete. Vibration generating structure is coupled to the screed for vibrating the screed blade. A concrete spreading device is coupled to the screed frame to level the surface of the plastic concrete and to evenly distribute excess plastic concrete in front of the screed blade. The concrete spreading device includes a grading device having either an auger or a grading blade or both an auger and a grading blade. A carriage maintains the grading device at a desired relative elevation to the screed blade and translates the grading device back and forth along the length of the screed frame. The side to side translation of the grading device along the screed frame laterally distributes the excess concrete and displaces the concrete forward and away from the screed blade. Forward translation of the screed along the concrete forms together with the side to side translations of the carriage along the length of the screed frame levels and finishes the surface of the plastic concrete.
445264
Allen Engineering Corporation
Ridout & Maybee Llp
LandOfFree
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