Cold gas spray gun
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United States of America Patent
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Dec 29, 2009
Grant Date -
Sep 27, 2007
app pub date -
Jun 29, 2006
filing date -
Mar 24, 2006
priority date (Note) -
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status (Latency Note)
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Abstract
A cold gas spray gun is disclosed. The spray gun includes a high-pressure gas heater which has a pressure vessel through which gas flows and a heating element situated in the pressure vessel, as well as a mixing chamber in which particles can be admixed with the gas through a particle feed. A Laval nozzle is arranged downstream in the direction of flow of the gas and consists of a convergent section, a nozzle throat and a divergent section. The high-pressure gas heater and/or the mixing chamber is/are at least partially insulated on the inside in the areas of contact with the gas.
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