Road structure – process – or apparatus – Apparatus – Automatic control
Reexamination Certificate
2000-08-24
2001-09-11
Will, Thomas B. (Department: 3673)
Road structure, process, or apparatus
Apparatus
Automatic control
C404S084050, C404S104000
Reexamination Certificate
active
06287048
ABSTRACT:
FIELD OF THE INVENTION
This invention relates to compaction of asphalt concrete. More particularly, this invention relates to means for obtaining uniform compaction of asphalt concrete to reduce or prevent cracking of the asphalt concrete surface. In another aspect, this invention provides apparatus for use in obtaining uniform compaction of asphalt concrete.
BACKGROUND OF THE INVENTION
Our earlier patents, U.S. Pat. Nos. 5,336,019 and 5,507,593, describe method and apparatus for obtaining uniform compaction of asphalt concrete, which patents are incorporated herein by reference.
SUMMARY OF THE INVENTION
In accordance with the present invention, there are provided improved techniques and apparatus for controlling the functions of (1) positioning of the edge confinement roller, and (2) carrier vehicle steering.
Other features and advantages of the method and apparatus of this invention will be apparent from the following detailed description and the accompanying drawings.
REFERENCES:
patent: 3638540 (1972-02-01), Williams
patent: 3807887 (1974-04-01), Tate
patent: 3914064 (1975-10-01), Gurries
patent: 3966345 (1976-06-01), Kofel
patent: 5248216 (1993-09-01), Vural
patent: 5336019 (1994-08-01), Hollon et al.
patent: 5507593 (1996-04-01), Hollon et al.
patent: 5546123 (1996-08-01), Ikeda et al.
patent: 5838277 (1998-11-01), Loomis et al.
patent: 5851086 (1998-12-01), Kurasako
patent: 2061966 (1970-12-01), None
patent: 2119332 (1972-12-01), None
Hollon Blake D.
Hollon Edmund D.
Addie Raymond
Edmundson Dean
Will Thomas B.
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