Offset screed system and quick connect mounting therefore

Details Offset screed system and quick connect mounting therefore Offset screed system and quick connect mounting therefore

1995-07-07

1996-10-22

Graysay, Tamara L.

Road structure, process, or apparatus

Apparatus

Automatic control

404102, 404118, E01C 1900

Patent

active

055670750

ABSTRACT:
A laser controlled automatic grade control system for finishing plastic concrete mounts the finishing tool behind the support towers to resist furrowing. The system functions with a variety of elongated, multi-section concrete finishing tools such as triangular truss screeds or the like, all of which can be quick connected or disconnected from the tower system. Skis that support the device facilitate sliding, winch-driven movement over and through plastic concrete. Spaced apart, vertically upwardly extending towers support the device along the length of the finishing tool. The towers are cylinder-adjustable in length. Cylinder extension and retraction are governed by a sensor-controlled system that is laser operated. The sensors respond to a preestablished laser beacon to control finishing tool elevation as the device traverses the pour in response to its winches.

REFERENCES:
patent: 5129803 (1992-07-01), Nomura et al.
patent: 5288166 (1994-02-01), Allen et al.
patent: 5328295 (1994-07-01), Allen
patent: 5352063 (1994-10-01), Allen et al.

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