Abrasive water-jet cutting nozzle having a vented water-jet pathway
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United States of America Patent
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Issued Date -
Jan 27, 2005
app pub date -
Jul 22, 2003
filing date -
Jul 22, 2003
priority date (Note) -
Abandoned
status (Latency Note)
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Abstract
A vented abrasive water-jet nozzle including a nozzle body having an abrasive-material mixing cavity, a receiving portion having receiving surface that receives a vented water-jet forming assembly, and an airflow restriction orifice between the receiving portion and the abrasive-material mixing cavity defining a water-jet pathway. The nozzle also includes an air-vent inlet port, and an air-vent pathway coupled between the air-inlet port and the waterjet pathway. A vented water-jet forming assembly includes a body having two spaced-apart surfaces, the first surface including a portion that receives a high-pressure water source, and the second surface including a portion that engages a receiving surface of an abrasive water-jet nozzle, and a jewel having a water-jet forming orifice carried on the receiving portion of the first surface. The assembly also includes a bore, and an air-vent pathway, the bore coupling the orifice and the air-vent pathway.
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