Apparatus and method for filling boreholes in blasting operations
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United States of America Patent
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Jun 23, 2020
Grant Date -
Jul 11, 2019
app pub date -
Jun 12, 2017
filing date -
Jul 26, 2016
priority date (Note) -
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Abstract
An apparatus and method for filling boreholes with dry mass such sand, gravel, concrete and dry mortars or other similar materials from a deposit or a truck in blasting operations. The apparatus includes a container for storage of mass, conveying device with a conveyor screw for conveying the mass from the container into a hose and a compressed air supply for directing flow of the mass in the hose towards a dispenser. The compressor air supply is adapted to forcibly urge the mass into boreholes. The dispenser is adapted for positioning over the boreholes for filling with mass before blasting operations.
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