Preventing exhaust air from the drill motor from blowing-off towards the working face

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CPC
E21B21/18

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Parent Industries

EFIXED CONSTRUCTIONS E21Mining E21BEARTH DRILLING E21B21/00Methods or apparatus for flushing boreholes

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E21B21/18Preventing exhaust air from the drill motor from blowing-off towards the working face

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Patents Grantslast 30 patents

Information Patent Grant
Down the hole drilling assembly exhaust assembly
- Patent number 11,946,328
- Issue date Apr 2, 2024
- Sandvik Mining and Construction Oy
- Olivier Bruandet
- E21 - EARTH DRILLING MINING
Information Patent Grant
Down the hole drilling assembly and apparatus
- Patent number 11,834,929
- Issue date Dec 5, 2023
- Sandvik Mining and Construction Oy
- Olivier Bruandet
- E21 - EARTH DRILLING MINING
Information Patent Grant
Down-the-hole drill reverse exhaust system
- Patent number 8,302,707
- Issue date Nov 6, 2012
- Center Rock Inc.
- Leland Lyon
- E21 - EARTH DRILLING MINING

Patents Applicationslast 30 patents

Information Patent Application
DOWN THE HOLE DRILLING ASSEMBLY AND APPARATUS
- Publication number 20220298864
- Publication date Sep 22, 2022
- SANDVIK MINING AND CONSTRUCTION OY
- Olivier BRUANDET
- E21 - EARTH DRILLING MINING
Information Patent Application
DOWN THE HOLE DRILLING ASSEMBLY EXHAUST ASSEMBLY
- Publication number 20220098943
- Publication date Mar 31, 2022
- SANDVIK MINING AND CONSTRUCTION OY
- Olivier BRUANDET
- E21 - EARTH DRILLING MINING
Information Patent Application
Down-the-hole Drill Reverse Exhaust System
- Publication number 20100187017
- Publication date Jul 29, 2010
- Center Rock, Inc.
- Leland H. LYON
- E21 - EARTH DRILLING MINING