Road structure – process – or apparatus – Apparatus – With in situ means for both comminuting and treating – e.g.,...
Reexamination Certificate
2007-02-20
2007-02-20
Hartmann, Gary S. (Department: 3671)
Road structure, process, or apparatus
Apparatus
With in situ means for both comminuting and treating, e.g.,...
C404S094000, C299S041100, C175S015000
Reexamination Certificate
active
11010706
ABSTRACT:
A method and apparatus for working asphalt pavement, comprising one or both of a mechanical, hydraulic, electric, or pneumatic means for providing high-speed rotation; a rotary tool comprising a first end comprising a working surface and a second end adapted for connection to the means for providing high-speed rotation; and a screed, cooperatively arranged with the rotary tool, and comprising a working surface adjacent the working surface of the rotary tool, wherein the rotary tool is spun at high speed and applied to the asphalt pavement, frictionally heating the asphalt pavement to a temperature sufficient to work the pavement locally adjacent rotary tool and the screed. The screed and rotary tool comprising abrasion resistant materials selected from the group consisting of high-strength steel, hardened alloys, cemented metal carbide, polycrystalline diamond, and cubic boron nitride. The rotary tool and the screed apparatus may comprise a closed loop control system.
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Chase Robert P.
Fox Joe
Hall David R.
Hellewell Matthew
Leany Francis
Hartmann Gary S.
Nelson Daniel P.
Wilde Tyson J.
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