Distributor for continuously feeding abrasive material in a water-jet cutting machine
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United States of America Patent
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Apr 23, 2013
Grant Date -
Apr 7, 2011
app pub date -
Sep 28, 2010
filing date -
Sep 28, 2009
priority date (Note) -
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status (Latency Note)
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Abstract
A machine has a head with a nozzle, a pipe for supplying water under pressure to the nozzle, and a duct for supplying an abrasive agent, and adding it to the jet of water under pressure. The duct has a first duct portion, fixed with respect to the head in the movements of rotation about a main axis, and a second duct portion, which is fixed with respect to the movements of rotation. A rotating distributor connects the first rotating portion with the second fixed portion of the duct for supplying the abrasive agent. The distributor's stator and rotor are rotatably mounted on one another without the interposition of seal rings and define between them an internal chamber that is substantially at atmospheric pressure and from which the abrasive agent drops by gravity to a duct outlet that converges into the pipe for supplying water under pressure.
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