Road structure – process – or apparatus – Process – In situ treatment of earth or roadway
Patent
1990-12-04
1992-03-10
Britts, Ramon S.
Road structure, process, or apparatus
Process
In situ treatment of earth or roadway
404 90, 299 39, E01C 2308, E01C 2312, E21C 4700
Patent
active
050945653
ABSTRACT:
A cutting tool for cutting depressions in the shoulder or along the center line of a roadway comprises a plurality of rotatable cutting heads which are aligned generally in parallel with one another and which are fixedly connected to one another and to drive means for rotating the cutting heads. Each of the cutting heads may be rotatably mounted within a respective drum housing. First and second ones of the drum housings are rigidly connected to one another via a rigid connecting member to form a first cutting head set, and third and fourth ones of the drum housings are rigidly connected to one another to form a second cutting head such that the first and second cutting head sets is self-aligning. A least one of the cutting members is driven to rotate in a direction opposite from that of the other cutting members to prevent the cutting heads from pulling the cutting tools down the roadway.
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patent: 4900094 (1990-02-01), Sergeant
Britts Ramon S.
Connolly Nancy P.
Surface Preparation Technologies, Inc.
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