Abrading – Machine – Sandblast
Patent
1997-03-10
1999-09-07
Rose, Robert A.
Abrading
Machine
Sandblast
451101, B24C 700
Patent
active
059478004
ABSTRACT:
An apparatus for cleaning or treating by blasting of a surface which includes an enhanced media delivery regulating system which includes supplying high pressure air to a suction gun and using this to draw blasting media and ambient or low pressure conveying air thereinto for high pressure expulsion therefrom. The high pressure air forms a vacuum over the media vacuum line which draws particulate blasting media from a hopper and conveying air separately. The conveying air is provided from a closed environment within the hopper above the particulate blasting media to control the pressure at which the conveying air is provided at a value equal to or less than the pressure at which the particulate blasting media is provided to the regulator. The regulator preferably includes a metering conduit defining a metering opening therethrough spaced from the interior walls of the regulator and spaced from the point of input of the conveying air and the pointed output through the media vacuum line for movement toward the blasting gun in order to enhance the flow characteristics of the media. This regulator provides unique dimensional restrictions and orientations which significantly enhance the flow of particulate blasting media through the regulator to the gun for surface blasting.
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Empire Abrasive Equipment Company
Rose Robert A.
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