Road structure – process – or apparatus – Process – In situ treatment of earth or roadway
Patent
1986-12-31
1989-08-08
Massie, IV, Jerome W.
Road structure, process, or apparatus
Process
In situ treatment of earth or roadway
299 17, 299 36, 404 90, E01C 2312
Patent
active
048547700
ABSTRACT:
Material, such as old unsound concrete material, is removed from a work surface by discharging water against such work surface at a pressure of from about 10,000 to about 25,000 psi from a rotating nozzle. During operation, the nozzle traverses the work surface along a series of linear paths and is incrementally moved in a longitudinal direction so as to pass over the work surface in a sequence of preferably overlapping transverse bands. An apparatus for carrying out the method of the invention comprises a support structure usefully in the form of a vehicle having an extendible arm driven by an extension means for incremental movement of that arm in a longitudinal direction. A rotatable nozzle is mounted on a nozzle support in turn secured to the extendible arm for bidirectional movement of the nozzle along a transverse linear path. Casters are also provided for maintaining the nozzle at a predetermined spacing from the work surface during operation of the apparatus.
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Miko Stephen J.
Puchala Ryszard J.
Indescor Hydrodynamics Inc.
Massie IV Jerome W.
Smith Matthew
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