Apparatus for feeding tube elements, rock drilling rig and method of supporting drill hole openings
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United States of America Patent
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Feb 14, 2023
Grant Date -
Jun 4, 2020
app pub date -
Dec 3, 2019
filing date -
Dec 4, 2018
priority date (Note) -
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Abstract
An apparatus for feeding a tubular object inside a drill hole, a rock drilling rig and a method of supporting mouth openings of drill holes is provided. The apparatus includes a support device for supporting an elongated tube element blank having the potential for several successive tube inserts. A front end of the tube element blank is moved longitudinally inside a drill hole by means of a feeding device. Thereby, the drill hole is provided with a protective section extending a limited longitudinal dimension towards a bottom of the drill hole. The apparatus further includes a separation device for detaching the mentioned tube inserts one by one from the tube element blank.
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