Measuring the advance of support units with respect to internal points of reference

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CPC
E21D23/144

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EFIXED CONSTRUCTIONS E21Mining E21DSHAFTS TUNNELS GALLERIES LARGE UNDERGROUND CHAMBERS E21D23/00Mine roof supports for step- by- step movement

Current Industry

E21D23/144Measuring the advance of support units with respect to internal points of reference

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Patents Grantslast 30 patents

Information Patent Grant
Method and device for monitoring operation of a mining machine unit
- Patent number 11,746,655
- Issue date Sep 5, 2023
- Caterpillar Inc.
- Euan Kirkhope
- E21 - EARTH DRILLING MINING
Information Patent Grant
Method for implementing a centralized control platform of hydraulic...
- Patent number 10,655,467
- Issue date May 19, 2020
- Taiyuan University of Technology
- Muqin Tian
- Y02 - TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMA...
Information Patent Grant
Method of working coal seams to a defined preset depth of cutting d...
- Patent number 5,275,469
- Issue date Jan 4, 1994
- Hermann Hemscheidt Maschinenfabrik GmbH
- Guy Geuns
- E21 - EARTH DRILLING MINING
Information Patent Grant
Measurement of the alignment of an articulated mine conveyor
- Patent number 5,145,235
- Issue date Sep 8, 1992
- Gullick Dobson Limited
- Brian G. D. Smart
- E21 - EARTH DRILLING MINING
Information Patent Grant
Process for the automated winning of mineral, such as coal, in a lo...
- Patent number 5,137,336
- Issue date Aug 11, 1992
- Gerwerkschaft Eisenhutte Westfalia GmbH
- Gerhard Merten
- E21 - EARTH DRILLING MINING
Information Patent Grant
Method of electro-hydraulic control of longwall mine units
- Patent number 4,964,675
- Issue date Oct 23, 1990
- Herman Hemscheidt Maschinenfrabrik GmbH & Co.
- Josef Welzel
- E21 - EARTH DRILLING MINING
Information Patent Grant
Method of controlling the movement of a longwall excavation front,...
- Patent number 4,887,935
- Issue date Dec 19, 1989
- Bochumer Eisenhutte Heintzmann GmbH & Co. KG
- Manfred Koppers
- E21 - EARTH DRILLING MINING
Information Patent Grant
Power supply arrangement for electro-hydraulic control systems in m...
- Patent number 4,882,501
- Issue date Nov 21, 1989
- Gewerschaft Eisenhutte Westfalia GmbH
- Johannes Konig
- E21 - EARTH DRILLING MINING
Information Patent Grant
Control system for longwall mining roof supports
- Patent number 4,518,285
- Issue date May 21, 1985
- Gebr. Eickhoff Maschinenfabrik und Eisengiesserei m.b.H.
- Karl-Heinz Weber
- E21 - EARTH DRILLING MINING
Information Patent Grant
Mine roof support control
- Patent number 4,134,270
- Issue date Jan 16, 1979
- Gullick Dobson Limited
- Fred Small
- E21 - EARTH DRILLING MINING
Information Patent Grant
Mine equipment
- Patent number 4,096,753
- Issue date Jun 27, 1978
- Coal Industry (Patents) Limited
- Rex Mullins
- E21 - EARTH DRILLING MINING
Information Patent Grant
3531159
- Patent number 3,531,159
- Issue date Sep 29, 1970
- E21 - EARTH DRILLING MINING
Information Patent Grant
3531162
- Patent number 3,531,162
- Issue date Sep 29, 1970
- E21 - EARTH DRILLING MINING
Information Patent Grant
3412391
- Patent number 3,412,391
- Issue date Nov 19, 1968
- E21 - EARTH DRILLING MINING
Information Patent Grant
3397543
- Patent number 3,397,543
- Issue date Aug 20, 1968
- E21 - EARTH DRILLING MINING
Information Patent Grant
3392531
- Patent number 3,392,531
- Issue date Jul 16, 1968
- E21 - EARTH DRILLING MINING
Information Patent Grant
3341843
- Patent number 3,341,843
- Issue date Sep 12, 1967
- E21 - EARTH DRILLING MINING

Patents Applicationslast 30 patents

Information Patent Application
DETECTION DEVICE AND METHOD FOR WORKING SURFACE, TERMINAL, AND STOR...
- Publication number 20240117740
- Publication date Apr 11, 2024
- TAIYUAN UNIVERSITY OF TECHNOLOGY
- Ziming KOU
- E21 - EARTH DRILLING MINING
Information Patent Application
METHOD AND DEVICE FOR MONITORING OPERATION OF A MINING MACHINE UNIT
- Publication number 20220136390
- Publication date May 5, 2022
- Caterpillar SARL
- Euan KIRKHOPE
- E21 - EARTH DRILLING MINING
Information Patent Application
Method for the Automated Production of a Defined Face Opening by Me...
- Publication number 20120098325
- Publication date Apr 26, 2012
- Martin Junker
- E21 - EARTH DRILLING MINING

Measuring the advance of support units with respect to internal points of reference

Industry

Parent Industries

Current Industry

Patents Grantslast 30 patents

Method and device for monitoring operation of a mining machine unit

Method for implementing a centralized control platform of hydraulic...

Method of working coal seams to a defined preset depth of cutting d...

Measurement of the alignment of an articulated mine conveyor

Process for the automated winning of mineral, such as coal, in a lo...

Method of electro-hydraulic control of longwall mine units

Method of controlling the movement of a longwall excavation front,...

Power supply arrangement for electro-hydraulic control systems in m...

Control system for longwall mining roof supports

Mine roof support control

Mine equipment

3531159

3531162

3412391

3397543

3392531

3341843

Patents Applicationslast 30 patents

DETECTION DEVICE AND METHOD FOR WORKING SURFACE, TERMINAL, AND STOR...

METHOD AND DEVICE FOR MONITORING OPERATION OF A MINING MACHINE UNIT

Method for the Automated Production of a Defined Face Opening by Me...