Pressure washer gun with chemical injection and foaming capabilities
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United States of America Patent
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Feb 27, 2018
Issued Date -
N/A
app pub date -
Oct 21, 2014
filing date -
Oct 23, 2013
priority date (Note) -
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Abstract
A pressure washer spray gun includes a spray gun body configured to be fluidly coupled to a source of pressurized water, a chemical container coupled to the spray gun body, wherein the chemical container is configured to contain liquid chemical, a venturi including a converging section, a throat, and a diverging section, wherein the venturi is coupled to the body, and wherein the chemical container is fluidly coupled to the throat, an air inlet port formed in the diverging section and configured to fluidly couple the diverging section to a source of air, and multiple nozzles, wherein each nozzle has a different orifice diameter, and wherein only one nozzle at a time can be selected to provide a fluid output from the spray gun.
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