Nozzle assembly and surface treatment method with nozzle assembly
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United States of America Patent
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Jun 18, 2019
Grant Date -
Mar 1, 2018
app pub date -
Feb 8, 2016
filing date -
Feb 25, 2015
priority date (Note) -
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Abstract
The present invention is a nozzle assembly having a nozzle main body including an ejection material suction port and an ejection port which ejects the ejection material with the compressed air, and an air nozzle which jets the compressed air into the nozzle main body. The nozzle main body includes a mixing chamber which mixes the ejection material with the compressed air, a first pathway directed from the ejection material suction port toward the mixing chamber, and a second pathway directed from the mixing chamber toward the ejection port. The air nozzle includes a compressed air jet portion and a third pathway directed to the compressed air jet portion, and the third pathway is inserted into the nozzle main body. The compressed air jet portion of the air nozzle is provided with a flow contracting portion having an opening.
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