specially adapted to hydraulic, pneumatic, or hydraulic-pneumatic props

Industry

CPC
E21D15/51

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Parent Industries

EFIXED CONSTRUCTIONS E21Mining E21DSHAFTS TUNNELS GALLERIES LARGE UNDERGROUND CHAMBERS E21D15/00Props Chocks

Current Industry

E21D15/51specially adapted to hydraulic, pneumatic, or hydraulic-pneumatic props

Industries

Patents Grantslast 30 patents

Information Patent Grant
Hydraulic support monitoring support pose in real time based on ine...
- Patent number 10,975,695
- Issue date Apr 13, 2021
- China University of Mining and Technology
- Zhongbin Wang
- E21 - EARTH DRILLING MINING
Information Patent Grant
Hydraulic support unit and hydraulic support for anti-rock burst ro...
- Patent number 10,774,642
- Issue date Sep 15, 2020
- Liaoning University
- Yishan Pan
- E21 - EARTH DRILLING MINING
Information Patent Grant
Sleeve holder for a hydraulic cylinder
- Patent number 10,385,888
- Issue date Aug 20, 2019
- Caterpillar Global Mining Europe GmbH
- Christian Knoblich
- F15 - FLUID-PRESSURE ACTUATORS HYDRAULICS OR PNEUMATICS IN GENERAL
Information Patent Grant
Hydraulically trippable check valve for underground mine support hy...
- Patent number 6,073,654
- Issue date Jun 13, 2000
- DBT Deutsche Bergbau-Technik GmbH
- Michael Dettmers
- 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
Prestressing of mine props
- Patent number 5,669,739
- Issue date Sep 23, 1997
- HL&H Timber Products (Proprietary) Limited
- Graham Heath Clarke
- E21 - EARTH DRILLING MINING
Information Patent Grant
Support prop with integrated pressure limiting valve and nailed pipes
- Patent number 5,611,646
- Issue date Mar 18, 1997
- Richard Voss Grubenausbau GmbH
- Richard Voss
- E21 - EARTH DRILLING MINING
Information Patent Grant
Pressure-compensated pressure limiting valve
- Patent number 5,462,076
- Issue date Oct 31, 1995
- Richard Voss Grubenausbau GmbH
- Richard Voss
- 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
Individual hydraulic prop with filling/drawing valve and pressure f...
- Patent number 5,297,901
- Issue date Mar 29, 1994
- Grubenausbau GmbH
- Richard Voss
- E21 - EARTH DRILLING MINING
Information Patent Grant
Valve units for use in hydraulic control systems of mining equipment
- Patent number 5,159,872
- Issue date Nov 3, 1992
- Gewerkschaft Eisenhutte Westfalia GmbH
- Michael Dettmers
- E21 - EARTH DRILLING MINING
Information Patent Grant
Pressure-limiting valve
- Patent number 4,660,595
- Issue date Apr 28, 1987
- Hermann Hemscheidt Maschinenfabrik GmbH & Co.
- Willi Kuster
- E21 - EARTH DRILLING MINING
Information Patent Grant
Hydraulically-controlled non-return valve
- Patent number 4,597,557
- Issue date Jul 1, 1986
- Hermann Hemscheidt Maschinenfabrik GmbH & Co.
- Karl Krieger
- 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
Mining cylinder hydraulic slide valve
- Patent number 4,516,601
- Issue date May 14, 1985
- Bennes Marrel
- Roger Chanal
- E21 - EARTH DRILLING MINING
Information Patent Grant
Excess pressure valve particularly for a fluid pressure operated te...
- Patent number 4,274,435
- Issue date Jun 23, 1981
- Thyssen Industrie AG
- Siegmar Block
- E21 - EARTH DRILLING MINING
Information Patent Grant
Water-based industrial fluids
- Patent number 4,257,902
- Issue date Mar 24, 1981
- Singer & Hersch Industrial Development (Pty.) Ltd.
- Haimi N. Singer
- E21 - EARTH DRILLING MINING
Information Patent Grant
Hydraulically operated mine prop with safety valve
- Patent number 4,252,476
- Issue date Feb 24, 1981
- Bochumer Eisenhutte Heintzmann GmbH & Co
- Manfred Koppers
- E21 - EARTH DRILLING MINING
Information Patent Grant
Hydraulic mine prop
- Patent number 4,142,449
- Issue date Mar 6, 1979
- Thyssen Industrie AG
- Manfred Koppers
- E21 - EARTH DRILLING MINING
Information Patent Grant
Pressure relief valve for hydraulic mine supporting elements
- Patent number 4,111,227
- Issue date Sep 5, 1978
- Vereinigte Osterreichische Eisen- und Stahlwerke - Alpine Montan Aktiengesell...
- Siegfried Sigott
- E21 - EARTH DRILLING MINING
Information Patent Grant
Pressure relief valve
- Patent number 4,091,838
- Issue date May 30, 1978
- Dowty Mining Equipment Limited
- George Herbert Dowty
- E21 - EARTH DRILLING MINING
Information Patent Grant
3777619
- Patent number 3,777,619
- Issue date Dec 11, 1973
- E21 - EARTH DRILLING MINING
Information Patent Grant
3776098
- Patent number 3,776,098
- Issue date Dec 4, 1973
- E21 - EARTH DRILLING MINING
Information Patent Grant
3544055
- Patent number 3,544,055
- Issue date Dec 1, 1970
- E21 - EARTH DRILLING MINING
Information Patent Grant
3515166
- Patent number 3,515,166
- Issue date Jun 2, 1970
- E21 - EARTH DRILLING MINING
Information Patent Grant
3426995
- Patent number 3,426,995
- Issue date Feb 11, 1969
- E21 - EARTH DRILLING MINING
Information Patent Grant
3422864
- Patent number 3,422,864
- Issue date Jan 21, 1969
- E21 - EARTH DRILLING MINING
Information Patent Grant
3318331
- Patent number 3,318,331
- Issue date May 9, 1967
- E21 - EARTH DRILLING MINING
Information Patent Grant
3295814
- Patent number 3,295,814
- Issue date Jan 3, 1967
- E21 - EARTH DRILLING MINING
Information Patent Grant
3148860
- Patent number 3,148,860
- Issue date Sep 15, 1964
- E21 - EARTH DRILLING MINING

Patents Applicationslast 30 patents

Information Patent Application
HYDRAULIC SUPPORT MONITORING SUPPORT POSE IN REAL TIME BASED ON INE...
- Publication number 20210010373
- Publication date Jan 14, 2021
- China University of Mining and Technology
- Zhongbin WANG
- E21 - EARTH DRILLING MINING
Information Patent Application
SLEEVE HOLDER FOR A HYDRAULIC CYLINDER
- Publication number 20170108016
- Publication date Apr 20, 2017
- CATERPILLAR GLOBAL MINING EUROPE GMBH
- Christian KNOBLICH
- F15 - FLUID-PRESSURE ACTUATORS HYDRAULICS OR PNEUMATICS IN GENERAL
Information Patent Application
TEMPORARY ROOF SUPPORT SYSTEM WITH ANTI-ROTATION FEATURE
- Publication number 20160102552
- Publication date Apr 14, 2016
- Caterpillar Global Mining America LLC
- David M. Denson
- E21 - EARTH DRILLING MINING
Information Patent Application
TELESCOPIC MINE ROOF SUPPORT
- Publication number 20150184512
- Publication date Jul 2, 2015
- BURRELL MINING PRODUCTS, INC.
- Michael T. Shook
- E21 - EARTH DRILLING MINING
Information Patent Application
SUPPORT PROP
- Publication number 20140072374
- Publication date Mar 13, 2014
- ELBROC MINING PRODUCTS (PTY) LTD
- Grant ROACH
- E21 - EARTH DRILLING MINING
Information Patent Application
PROP
- Publication number 20140050538
- Publication date Feb 20, 2014
- MINE SUPPORT PRODUCTS (PTY) LTD
- Christian NISSEN
- E21 - EARTH DRILLING MINING
Information Patent Application
SUPPORT FOR UNDERGROUND MINING AND TUNNEL CONSTRUCTION
- Publication number 20090202310
- Publication date Aug 13, 2009
- Bochumer Eisenhutte Heintzmann GmbH & Co. KG
- MANFRED KOPPERS
- E21 - EARTH DRILLING MINING

specially adapted to hydraulic, pneumatic, or hydraulic-pneumatic props

Industry

Parent Industries

Current Industry

Patents Grantslast 30 patents

Hydraulic support monitoring support pose in real time based on ine...

Hydraulic support unit and hydraulic support for anti-rock burst ro...

Sleeve holder for a hydraulic cylinder

Hydraulically trippable check valve for underground mine support hy...

Valves

Prestressing of mine props

Support prop with integrated pressure limiting valve and nailed pipes

Pressure-compensated pressure limiting valve

Yield valve

Individual hydraulic prop with filling/drawing valve and pressure f...

Valve units for use in hydraulic control systems of mining equipment

Pressure-limiting valve

Hydraulically-controlled non-return valve

Valve devices

Mining cylinder hydraulic slide valve

Excess pressure valve particularly for a fluid pressure operated te...

Water-based industrial fluids

Hydraulically operated mine prop with safety valve

Hydraulic mine prop

Pressure relief valve for hydraulic mine supporting elements

Pressure relief valve

3777619

3776098

3544055

3515166

3426995

3422864

3318331

3295814

3148860

Patents Applicationslast 30 patents

HYDRAULIC SUPPORT MONITORING SUPPORT POSE IN REAL TIME BASED ON INE...

SLEEVE HOLDER FOR A HYDRAULIC CYLINDER

TEMPORARY ROOF SUPPORT SYSTEM WITH ANTI-ROTATION FEATURE

TELESCOPIC MINE ROOF SUPPORT

SUPPORT PROP

PROP

SUPPORT FOR UNDERGROUND MINING AND TUNNEL CONSTRUCTION