Explosive material charging device for charging a borehole method of positioning an explosive material charging device explosive material charging vehicle and data medium
Number of patents in Portfolio can not be more than 2000
United States of America
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Dec 24, 2024
Grant Date -
Dec 7, 2023
app pub date -
Oct 20, 2021
filing date -
Oct 20, 2021
priority date (Note) -
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Abstract
The present invention concerns an explosive material charging device (1) and a method of positioning the explosive material charging device (1) in a borehole (3). The explosive material charging device (1) comprises a top anchor unit (5) and a bottom anchor unit (7) each configured to engage the borehole wall (8), an expandable tube member (11) arranged between the top anchor unit (5) and the bottom anchor unit (7) and configured to be charged with explosive material (40), the bottom anchor unit (7) comprises a backflow prevention valve device (13) configured to prevent the explosive material (40) to flow out from the expandable tube member (11), wherein the backflow prevention valve device (13) is openable for permitting a charging hose (15) to enter the expandable tube member (11) for reaching the interior of the top anchor unit (5).
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