Patent ID: 7850396
Filing Date: 2010-12-14
Classification: E01C,E04F

Abstract:
1. A wheeled screeding device movable over and through a surface of uncured concrete and operable to level and smooth the uncured concrete surface, said wheeled screeding device comprising: a wheeled support having a frame portion and a pair of spaced apart wheels rotatably mounted to said frame portion, a screed head mounted to said wheeled support, said screed head comprising a vibrating member and a grade setting device adjustably mounted to said vibrating member, said vibrating member being at least partially supportable on the uncured concrete surface as said wheeled screeding device moves over and through the uncured concrete, said wheeled support being partially supportable upon and over post-tensioned cables at the support surface; said grade setting device being adjustable relative to said vibrating member to establish a desired grade of the concrete surface in front of said vibrating member in the direction of travel of said device as said wheeled screeding device as said wheeled scredding device is operated to level and smooth the uncured concrete surface; wherein said screed head is pivotable about a longitudinal pivot axis relative to said wheeled support, said longitudinal pivot axis extending along said wheeled screeding device and in the direction of travel of said wheeled screeding device, said screed head being pivotable about said longitudinal pivot axis to screed the concrete surface and follow a targeted grade elevation while said spaced apart wheels engage uneven terrain; and a pivot limiting element that selectively limits pivotal movement of said screed head about said longitudinal pivot axis, wherein said pivot limiting element limits pivotal movement of said screed head about said longitudinal pivot axis when in a locking position and allows pivotal movement of said screed head about said longitudinal pivot axis when in an unlocking position, said pivot limiting element being movable between said locking and unlocking positions in response to a user input.