Abrasive blasting apparatus for remotely activating and modulating flow of abrasive blasting material
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United States of America Patent
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Feb 24, 2015
Grant Date -
Jun 20, 2013
app pub date -
Sep 6, 2012
filing date -
Sep 6, 2011
priority date (Note) -
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Abstract
An abrasive blasting apparatus comprises a blast pot, a blast media valve fluidly connected to said blast media outlet of the blast pot, a source of pressurized gas, a proportional air valve in fluid communication with the blast media valve and the source of pressurized air, a hose having a blast nozzle at a distal end thereof, and a main control unit fluidly connected to the blast media valve and the air valve. The blast media valve comprises a housing having a blasting media intake, a plunger disposed within the housing, a sleeve disposed between the housing and the plunger, a blast media port in the sleeve, a casing fixedly connected to the housing, a piston disposed within the casing and connected to the plunger, and a base member fixedly connected to the housing. The plunger is movable by the piston with respect to the blast media port.
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