Abrasive blasting system with remote flow control and method

Abrading – Precision device or process - or with condition responsive... – Condition responsive control for sandblasting

Reexamination Certificate

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Details

C451S005000, C451S039000, C451S091000

Reexamination Certificate

active

08057279

ABSTRACT:
A particulate blasting apparatus includes a blast vessel having an interior for storing abrasive particulate. The blast vessel has an inlet for introducing a pressurized gas into the interior of the blast vessel and an outlet for allowing the passage of the pressurized gas and particulate. A flexible blast hose is coupled at one end to the outlet for directing particulate flow from the outlet and a blast nozzle is coupled to an opposite end of the blast hose. A metering valve regulates different amounts of particulate flow from the blast vessel through the outlet. A flow actuator is coupled to the metering valve for actuating the metering valve. A controller associated with the blast nozzle in communication with the actuator controls the actuator from the blast nozzle during blasting operations. The blasting apparatus may be used as part of a blasting system that includes a compressor unit for providing the pressurized gas. A method of blasting an area is achieved by controlling the amount of particulate provided to the blast nozzle from the blast nozzle through the controller associated with the blast nozzle while pressurized gas is flowing through the blast nozzle and directing a particulate flow from the blast nozzle to the area.

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Thompson Valve II Product Information Sheet, Wheelabrator Group, pp. 1-2, earliest known date—Apr. 18, 2008.

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