Road structure – process – or apparatus – Apparatus – With means for profile shaping – e.g. – crown
Reexamination Certificate
2008-12-29
2010-12-14
Hartmann, Gary S (Department: 3671)
Road structure, process, or apparatus
Apparatus
With means for profile shaping, e.g., crown
C404S114000, C404S118000
Reexamination Certificate
active
07850396
ABSTRACT:
A method and apparatus for screeding post tensioned concrete slabs includes providing a screeding device having a wheeled support having a frame portion and spaced apart wheels rotatably mounted to the frame portion. The screeding device has a screed head mounted to the wheeled support. The screed head includes a vibrating member and a grade setting device adjustably mounted to the vibrating member. The vibrating member is at least partially supportable on the uncured concrete surface, and the grade setting device is adjustable relative to the vibrating member to strike off excess uncured concrete in front of the vibrating member to establish the desired grade or level of the uncured concrete. The screed head may be pivotable relative to the wheeled support about a longitudinal pivot axis extending along the screeding device and in the direction of travel of the screeding device.
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Halonen Philip D.
Pietila Mark A.
Torvinen Jeffrey W.
Wiitanen Jason M.
Hartmann Gary S
Somero Enterprises, Inc.
Van Dyke Gardner, Linn & Burkhart, LLP
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