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2023
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Invention
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Hybrid hydraulic down-the-hole hammer. The present invention relates to a closed-loop hydraulic d... |
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Invention
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Drill bit assembly for reverse circulation hammer |
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Invention
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Drill bit assembly for reverse circulation hammer. The present invention relates to a drill bit a... |
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2022
|
Invention
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Hydraulic down-the-hole hammer and subsea pile. The present invention relates to a hydraulic down... |
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2021
|
Invention
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Drilling device with fluid column resonator. The present invention relates to a drilling device. ... |
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Invention
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Flapper valve for percussion drill tools. The present invention relates to a flapper valve for a ... |
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Invention
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Flushing and connection arrangements for percussion drill tools. The present invention relates to... |
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2020
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Invention
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Drill bit assembly for fluid-operated percussion drill tools. The present invention relates to a ... |
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Invention
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A drill bit assembly for fluid-operated percussion drill tools. The present invention relates to ... |
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2019
|
Invention
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Drill bit assembly for percussion drill tools. The present invention relates to a drill bit assem... |
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2018
|
Invention
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Drill bit with detachable bit head. A drill bit assembly for fluid-operated percussion drill tool... |
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Invention
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Valve piloting arrangements for hydraulic percussion devices. A hydraulic percussion device compr... |
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Invention
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Drill bit with detachable bit head. The present invention relates to a drill bit assembly for flu... |
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Invention
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Valve piloting arrangements for hydraulic percussion devices. The present invention provides a hy... |
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2017
|
Invention
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Multi-indenter hammer drill bits and method of fabricating. 2 is defined by an equation. |
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Invention
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Drill bits. A multi-indenter drill bit comprising a plurality of indenters arranged on a drilling... |
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G/S
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Machines and machine tools, namely, drilling machines, power-operated percussion hammer drills, p... |
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G/S
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Machines and machine tools, namely well drilling machines, drills namely percussion drills, pneum... |
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G/S
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Machines and machine tools, namely drilling machines, drills including percussion drills, pneumat... |
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Invention
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Release assembly for percussion drill tools.
According to an aspect of the present invention, th... |
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Invention
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Release assembly for percussion drill tools. According to an aspect of the present invention, the... |
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2015
|
Invention
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Pressure control system. The present invention relates to a pressure control system for a hydraul... |
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2014
|
Invention
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Flow monitoring system. A flow monitoring system for a hydraulic apparatus (3) comprising means (... |
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Invention
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Filter drill rod adapted for cleaning. The present invention relates to a filter drill rod for a ... |
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Invention
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Drill rod for percussion drill tool. The present invention relates to a drill rod (2) for a fluid... |
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Invention
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Multi-accumulator arrangement for hydraulic percussion mechanism. a) for hydraulic fluid. The fir... |
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Invention
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Flushing arrangements for liquid-powered down-the-hole hammers. The present invention relates to ... |
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Invention
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Multi-accumulator arrangement for hydraulic percussion mechanism. The present invention relates t... |
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2013
|
Invention
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Symmetrical bit for directional drilling tool.
A percussion drill bit for directional drilling t... |
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Invention
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Symmetrical bit for directional drilling tool. The present invention relates to a percussion dril... |
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2011
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Invention
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A down-the-hole hammer. The present invention relates to a down-the-hole hammer comprising an ext... |
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Invention
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An attachment for percussion drill tools. The present invention provides an attachment (1) for a ... |
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2005
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G/S
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Machines and machine tools, including drilling machines, drills including percussion drills, pneu... |
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1999
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G/S
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mining equipment, namely rock drills, hammers, and spare parts therefore |
