Hydraulic or pneumatic features

Industry

CPC
E21D23/16

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Parent Industries

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

Current Industry

E21D23/16Hydraulic or pneumatic features

Industries

Patents Grantslast 30 patents

Information Patent Grant
Similar simulation experimental device of hydraulic energy-absorbin...
- Patent number 11,326,452
- Issue date May 10, 2022
- China University of Mining and Technology
- Anye Cao
- E21 - EARTH DRILLING MINING
Information Patent Grant
Hydraulic assembly for a mining system
- Patent number 9,982,799
- Issue date May 29, 2018
- Caterpillar Global Mining Europe GmbH
- James Hassell
- E21 - EARTH DRILLING MINING
Information Patent Grant
Face equipment comprising hose levels placed between the face conve...
- Patent number 9,482,091
- Issue date Nov 1, 2016
- RAG Aktiengesellschaft
- Martin Junker
- E21 - EARTH DRILLING MINING
Information Patent Grant
Self-moving tunnel support canopy
- Patent number 9,291,053
- Issue date Mar 22, 2016
- Xinbin Li
- E21 - EARTH DRILLING MINING
Information Patent Grant
System and method for enabling machine movement
- Patent number 9,234,425
- Issue date Jan 12, 2016
- Caterpillar Global Mining America LLC
- Jeffrey D. Looney
- E21 - EARTH DRILLING MINING
Information Patent Grant
Control device for an extracting unit in the work face of a mine
- Patent number 8,726,937
- Issue date May 20, 2014
- Tiefenbach Control Systems GmbH
- Gerhard Wülfing
- Y10 - TECHNICAL SUBJECTS COVERED BY FORMER USPC
Information Patent Grant
Coal face support in a mine
- Patent number 7,494,190
- Issue date Feb 24, 2009
- Tiefenbach Control Systems GmbH
- Willi Kussel
- E21 - EARTH DRILLING MINING
Information Patent Grant
Control mechanism for the extension units in the longwall face of a...
- Patent number 7,455,368
- Issue date Nov 25, 2008
- Tiefenbach Control Systems GmbH
- Willi Kussel
- E21 - EARTH DRILLING MINING
Information Patent Grant
Valve for hydraulic props of shield-type support frames, and shield...
- Patent number 7,428,861
- Issue date Sep 30, 2008
- DBT GmbH
- Michael Dettmers
- F15 - FLUID-PRESSURE ACTUATORS HYDRAULICS OR PNEUMATICS IN GENERAL
Information Patent Grant
Method and device for pressure amplification in cylinders, in parti...
- Patent number 7,424,803
- Issue date Sep 16, 2008
- Wolfgang Voss
- F15 - FLUID-PRESSURE ACTUATORS HYDRAULICS OR PNEUMATICS IN GENERAL
Information Patent Grant
Timbering and walling control for controlling the movements of timb...
- Patent number 7,416,369
- Issue date Aug 26, 2008
- Tiefenbach Control Systems GmbH
- Ursula Kellermann
- E21 - EARTH DRILLING MINING
Information Patent Grant
Individual controller for shield support frames
- Patent number 7,238,055
- Issue date Jul 3, 2007
- DBH GmbH
- Sebastian M. Mundry
- H05 - ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
Information Patent Grant
Hydraulic shield support
- Patent number 7,237,983
- Issue date Jul 3, 2007
- DBT GmbH
- Franz-Heinrich Suilmann
- E21 - EARTH DRILLING MINING
Information Patent Grant
Electromagnet switching device
- Patent number 6,616,122
- Issue date Sep 9, 2003
- DBT GmbH
- Wolfgang Kobow
- F15 - FLUID-PRESSURE ACTUATORS HYDRAULICS OR PNEUMATICS IN GENERAL
Information Patent Grant
Control device for electrohydraulic mining controllers
- Patent number 6,597,579
- Issue date Jul 22, 2003
- DBT Automation GmbH
- Martin Reszat
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Grant
Valve arrangement
- Patent number 6,398,181
- Issue date Jun 4, 2002
- DBT Deutsche Bergbau-Technik GmbH
- Michael Dettmers
- E21 - EARTH DRILLING MINING
Information Patent Grant
Method and device for monitoring the load on hydraulic powered shie...
- Patent number 6,056,481
- Issue date May 2, 2000
- DBT Automation GmbH
- Willy Watermann
- E21 - EARTH DRILLING MINING
Information Patent Grant
Valves
- Patent number 5,950,673
- Issue date Sep 14, 1999
- Joy MM Delaware, Inc.
- Peter Elliott-Moore
- E21 - EARTH DRILLING MINING
Information Patent Grant
Yield valve
- Patent number 5,454,669
- Issue date Oct 3, 1995
- Longwall Roof Supports Limited
- Christopher J. Oziem
- E21 - EARTH DRILLING MINING
Information Patent Grant
Mine roof support
- Patent number 5,073,067
- Issue date Dec 17, 1991
- Meco Mining Equipment Limited
- Peter Elliott-Moore
- E21 - EARTH DRILLING MINING
Information Patent Grant
Arrangement for emergency operation of hydraulic appliance in an el...
- Patent number 5,060,556
- Issue date Oct 29, 1991
- Gewerkschaft Eisenhutte Westfalia GmbH
- Walter Weirich
- E21 - EARTH DRILLING MINING
Information Patent Grant
Electro-hydraulic control systems
- Patent number 4,906,143
- Issue date Mar 6, 1990
- Gewerkschaft Eisenhutte Westfalia GmbH
- Willy Kussel
- E21 - EARTH DRILLING MINING
Information Patent Grant
Valve for use in controlling the functions of mine roof supports
- Patent number 4,799,510
- Issue date Jan 24, 1989
- Gullick Dobson Limited
- Richard Ward
- E21 - EARTH DRILLING MINING
Information Patent Grant
Pressure-control valve
- Patent number 4,782,736
- Issue date Nov 8, 1988
- Hermann Hemscheidt Maschinenfabrik GmbH & Co.
- Karl Krieger
- E21 - EARTH DRILLING MINING
Information Patent Grant
Change-over valve for hydraulic walking mine-roof supports
- Patent number 4,757,835
- Issue date Jul 19, 1988
- Hermann Hemscheidt Maschinenfabrik GmbH & Co.
- Werner Reinelt
- E21 - EARTH DRILLING MINING
Information Patent Grant
Distributor
- Patent number 4,737,052
- Issue date Apr 12, 1988
- Gewerkschaft Eisenhutte Westfalia GmbH
- Walter Weirich
- E21 - EARTH DRILLING MINING
Information Patent Grant
Valve assemblies
- Patent number 4,617,954
- Issue date Oct 21, 1986
- Dobson Park Industries PLC.
- Nigel J. Petts
- E21 - EARTH DRILLING MINING
Information Patent Grant
Valve devices
- Patent number 4,580,594
- Issue date Apr 8, 1986
- Dobson Park Industries PLC.
- Nigel J. Petts
- E21 - EARTH DRILLING MINING
Information Patent Grant
Control apparatus
- Patent number 4,572,709
- Issue date Feb 25, 1986
- Gewerkschaft Eisenhutte Westfalia
- Walter Weirich
- E21 - EARTH DRILLING MINING
Information Patent Grant
Control valve
- Patent number 4,564,047
- Issue date Jan 14, 1986
- Fletcher Sutcliffe Wild Limited
- Lewis R. B. Bower
- E21 - EARTH DRILLING MINING

Patents Applicationslast 30 patents

Information Patent Application
Hydraulic Support with Quick Response Function for Coal Wall Spalling
- Publication number 20240026788
- Publication date Jan 25, 2024
- Shandong University of Science and Technology
- Lirong Wan
- E21 - EARTH DRILLING MINING
Information Patent Application
COAL-BASED SOLID WASTE TRANSPORT AND FILLING INTEGRATED MACHINE MIN...
- Publication number 20230383653
- Publication date Nov 30, 2023
- Western Digital Technologies, Inc.
- Feisheng Feng
- E21 - EARTH DRILLING MINING
Information Patent Application
DISTRIBUTED COAL CUTTING DEVICE FOR LONGWALL FACE OF COAL MINE
- Publication number 20230340877
- Publication date Oct 26, 2023
- Henan Polytechnic University
- Ruifu YUAN
- E21 - EARTH DRILLING MINING
Information Patent Application
FACE EQUIPMENT COMPRISING HOSE LEVELS PLACED BETWEEN THE FACE CONVE...
- Publication number 20150061352
- Publication date Mar 5, 2015
- RAG Aktiengesellschaft
- Martin Junker
- G01 - MEASURING TESTING
Information Patent Application
SYSTEM AND METHOD FOR ENABLING MACHINE MOVEMENT
- Publication number 20140369769
- Publication date Dec 18, 2014
- Jeffrey D. Looney
- E21 - EARTH DRILLING MINING
Information Patent Application
CONTROL DEVICE FOR AN EXTRACTING UNIT IN THE WORK FACE OF A MINE
- Publication number 20130048093
- Publication date Feb 28, 2013
- Gerhard Wülfing
- E21 - EARTH DRILLING MINING
Information Patent Application
Supply line
- Publication number 20070131105
- Publication date Jun 14, 2007
- Friedrich Wilhelm Dannehl
- E21 - EARTH DRILLING MINING
Information Patent Application
Coal face support in a mine
- Publication number 20060267395
- Publication date Nov 30, 2006
- Willi Kussel
- E21 - EARTH DRILLING MINING
Information Patent Application
Valve for hydraulic props of shield-type support frames, and shield...
- Publication number 20060213363
- Publication date Sep 28, 2006
- Michael Dettmers
- E21 - EARTH DRILLING MINING
Information Patent Application
Method and device for pressure amplification in cylinders, in parti...
- Publication number 20060207251
- Publication date Sep 21, 2006
- Wolfgang Voss
- E02 - HYDRAULIC ENGINEERING FOUNDATIONS SOIL SHIFTING
Information Patent Application
Timbering and walling control for controlling the movements of timb...
- Publication number 20060193702
- Publication date Aug 31, 2006
- Ursula Kellermann
- E21 - EARTH DRILLING MINING
Information Patent Application
Control mechanism for the extension units in the longwall face of a...
- Publication number 20060158016
- Publication date Jul 20, 2006
- Willi Kessel
- E21 - EARTH DRILLING MINING
Information Patent Application
Individual controller for shield support frames
- Publication number 20060014439
- Publication date Jan 19, 2006
- Sebastian M. Mundry
- E21 - EARTH DRILLING MINING
Information Patent Application
Hydraulic shield support
- Publication number 20040258487
- Publication date Dec 23, 2004
- DBT GmbH
- Franz-Heinrich Suilmann
- E21 - EARTH DRILLING MINING
Information Patent Application
Electromagnet switching device
- Publication number 20020130745
- Publication date Sep 19, 2002
- Wolfgang Kobow
- H01 - BASIC ELECTRIC ELEMENTS

Hydraulic or pneumatic features

Industry

Parent Industries

Current Industry

Patents Grantslast 30 patents

Similar simulation experimental device of hydraulic energy-absorbin...

Hydraulic assembly for a mining system

Face equipment comprising hose levels placed between the face conve...

Self-moving tunnel support canopy

System and method for enabling machine movement

Control device for an extracting unit in the work face of a mine

Coal face support in a mine

Control mechanism for the extension units in the longwall face of a...

Valve for hydraulic props of shield-type support frames, and shield...

Method and device for pressure amplification in cylinders, in parti...

Timbering and walling control for controlling the movements of timb...

Individual controller for shield support frames

Hydraulic shield support

Electromagnet switching device

Control device for electrohydraulic mining controllers

Valve arrangement

Method and device for monitoring the load on hydraulic powered shie...

Valves

Yield valve

Mine roof support

Arrangement for emergency operation of hydraulic appliance in an el...

Electro-hydraulic control systems

Valve for use in controlling the functions of mine roof supports

Pressure-control valve

Change-over valve for hydraulic walking mine-roof supports

Distributor

Valve assemblies

Valve devices

Control apparatus

Control valve

Patents Applicationslast 30 patents

Hydraulic Support with Quick Response Function for Coal Wall Spalling

COAL-BASED SOLID WASTE TRANSPORT AND FILLING INTEGRATED MACHINE MIN...

DISTRIBUTED COAL CUTTING DEVICE FOR LONGWALL FACE OF COAL MINE

FACE EQUIPMENT COMPRISING HOSE LEVELS PLACED BETWEEN THE FACE CONVE...

SYSTEM AND METHOD FOR ENABLING MACHINE MOVEMENT

CONTROL DEVICE FOR AN EXTRACTING UNIT IN THE WORK FACE OF A MINE

Supply line

Coal face support in a mine

Valve for hydraulic props of shield-type support frames, and shield...

Method and device for pressure amplification in cylinders, in parti...

Timbering and walling control for controlling the movements of timb...

Control mechanism for the extension units in the longwall face of a...

Individual controller for shield support frames

Hydraulic shield support

Electromagnet switching device