Road structure – process – or apparatus – Apparatus – Automatic control
Reexamination Certificate
2007-12-27
2009-02-17
Hartmann, Gary S (Department: 3671)
Road structure, process, or apparatus
Apparatus
Automatic control
C404S114000, C404S118000
Reexamination Certificate
active
07491011
ABSTRACT:
A wheeled screeding apparatus includes a vibrating member adjustably mounted at an end of a frame portion of a wheeled support, with the vibrating member at least partially supporting the end of the frame portion. The vibrating member is generally vertically adjustable relative to the frame portion to adjust a level of the vibrating member relative to the wheeled support. A level control is operable to automatically adjust the vibrating member relative to the frame portion in response to an output of a level sensor, with the level control automatically adjusting the vibrating member relative to the frame portion to substantially maintain the frame portion at a desired orientation relative to horizontal as the screeding device is moved over and through the uncured concrete in a screeding direction.
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Halonen Philip D
Hohmann, Jr. Howard E.
Kieranen Carl B.
Pietila Mark A.
Quenzi Philip J.
Hartmann Gary S
Somero Enterprises, Inc.
Van Dyke Gardner, Linn & Burkhart, LLP
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