Mining or in situ disintegration of hard material – Processes – Breaking down by direct contact with fluid
Reexamination Certificate
2006-07-25
2006-07-25
Kreck, John (Department: 3673)
Mining or in situ disintegration of hard material
Processes
Breaking down by direct contact with fluid
C299S030000
Reexamination Certificate
active
07080888
ABSTRACT:
A dual nozzle hydro-demolition system is mounted on a robot vehicle having a tower, with the robot vehicle and tower permitting the device to be positioned in any desired location on a vertical wall surface. The robot vehicle includes a plurality of tires and a motive power system allowing it to be moved to a desired location. Bearing pads are mounted on jacks allowing the tires of the robot vehicle to be elevated slightly off the ground to preclude undesired movements. A carriage is slidably mounted on a beam and carries dual nozzles, each of which is connected to a supply of high pressure water via a heavy duty hose. The nozzles are rotated using a hydraulic motor. A coupling is provided within the flow circuit from the source of water to the nozzle allowing a conduit adjacent the nozzle to rotate with respect to a conduit receiving water from the source thereof, so that each nozzle can be rotated without any water leakage.
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Snow, Dennis “Plant Engineer's Reference Book” 2002. pp. 20/15,20/16, 20/19.
Anonymous, “Fluid Power”, 1970, US Government Printing Office, pp. 84 and 85.
Ash Equipment Company, Inc.
Kreck John
Spiegel H. Jay
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