Special mine caps or special tops of pit-props for permitting step-by-step movement

Industry

CPC
E21D23/06

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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

E21D23/06Special mine caps or special tops of pit-props for permitting step-by-step movement

Industries

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Patents Grantslast 30 patents

Information Patent Grant
Mining rock deflector apparatus and method
- Patent number 10,995,617
- Issue date May 4, 2021
- Swanson Industries, Inc.
- Edward Protiva
- E21 - EARTH DRILLING MINING
Information Patent Grant
Mine roof support, pre-installation assembly for same, and method o...
- Patent number 10,822,948
- Issue date Nov 3, 2020
- Burrell Mining Products, Inc.
- Don C. Abel
- E21 - EARTH DRILLING MINING
Information Patent Grant
Mining rock deflector apparatus and method
- Patent number 10,808,533
- Issue date Oct 20, 2020
- Swanson Industries, Inc.
- Edward Protiva
- E21 - EARTH DRILLING MINING
Information Patent Grant
Spray nozzle for underground roof support
- Patent number 10,378,354
- Issue date Aug 13, 2019
- Joy Global Underground Mining LLC
- Andrew G. Fairhurst
- E21 - EARTH DRILLING MINING
Information Patent Grant
Longwall optimization control
- Patent number 10,208,592
- Issue date Feb 19, 2019
- Joy Global Underground Mining LLC
- Gareth Rimmington
- E21 - EARTH DRILLING MINING
Information Patent Grant
Roof support monitoring for longwall system
- Patent number 10,184,338
- Issue date Jan 22, 2019
- Joy Global Underground Mining LLC
- Paul M. Siegrist
- E21 - EARTH DRILLING MINING
Information Patent Grant
Spray nozzle for underground roof support
- Patent number 10,024,157
- Issue date Jul 17, 2018
- Joy Global Underground Mining LLC
- Andrew G. Fairhurst
- E21 - EARTH DRILLING MINING
Information Patent Grant
Roof support monitoring for longwall system
- Patent number 9,739,148
- Issue date Aug 22, 2017
- Joy MM Delaware, Inc.
- Paul M. Siegrist
- 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
Shield canopy for a shield-type support
- Patent number 9,109,445
- Issue date Aug 18, 2015
- Caterpillar Global Mining Europe GmbH
- Dennis Dehmel
- E21 - EARTH DRILLING MINING
Information Patent Grant
Coal caving cycle
- Patent number 9,068,452
- Issue date Jun 30, 2015
- Yancoal Technology Development PTY Ltd
- Maohu Matthew Wang
- E21 - EARTH DRILLING MINING
Information Patent Grant
Gob shield for shield support and method for the production thereof
- Patent number 8,764,349
- Issue date Jul 1, 2014
- Caterpillar Global Mining Europe GmbH
- Siamak Onsori
- E21 - EARTH DRILLING MINING
Information Patent Grant
Shield cap for a shield-type mining support
- Patent number 8,215,876
- Issue date Jul 10, 2012
- Caterpillar Global Mining Europe GmbH
- Siamak Onsori
- E21 - EARTH DRILLING MINING
Information Patent Grant
Mining system with drilling, loading, conveyor, and support
- Patent number 6,848,748
- Issue date Feb 1, 2005
- DBT GmbH
- Ulrich Paschedag
- E21 - EARTH DRILLING MINING
Information Patent Grant
Longwall mining with blasting
- Patent number 6,672,674
- Issue date Jan 6, 2004
- DBT GmbH
- Ulrich Paschedag
- E21 - EARTH DRILLING MINING
Information Patent Grant
Shaking control unit for a hydraulic cylinder
- Patent number 5,000,622
- Issue date Mar 19, 1991
- Bochumer Eisenhutte Heintzmann GmbH & Co. KG
- Siegmar Block
- E21 - EARTH DRILLING MINING
Information Patent Grant
Shaking control unit for a hydraulic cylinder
- Patent number 4,907,918
- Issue date Mar 13, 1990
- Bochumer Eisenhutte Heintzmann GmbH & Co. KG
- Siegmar Block
- E21 - EARTH DRILLING MINING
Information Patent Grant
Method of separating the upper coal in seams
- Patent number 4,798,417
- Issue date Jan 17, 1989
- Bochumer Eisenhutte Heintzmann GmbH & Co. HG
- Gunter Blumenthal
- E21 - EARTH DRILLING MINING
Information Patent Grant
Mine roof supports
- Patent number 4,784,532
- Issue date Nov 15, 1988
- Gullick Dobson Limited
- Kenneth D. Prescott
- E21 - EARTH DRILLING MINING
Information Patent Grant
Roof cap assembly with supporting cylinders for roof support mechanism
- Patent number 4,773,795
- Issue date Sep 27, 1988
- Klockner-Becorit GmbH
- Willy Watermann
- E21 - EARTH DRILLING MINING
Information Patent Grant
Multi-part roof-contacting structures of mine roof supports
- Patent number 4,755,084
- Issue date Jul 5, 1988
- Gewerkschaft Eisenhutte Westfalia GmbH
- Bernd Peters
- E21 - EARTH DRILLING MINING
Information Patent Grant
Adjustable cap unit
- Patent number 4,755,083
- Issue date Jul 5, 1988
- Bochumer Eisenhutte Heintzmann GmbH & Co. KG
- Ernst-Gunter Nerlich
- E21 - EARTH DRILLING MINING
Information Patent Grant
Roof support suitable for use in mines
- Patent number 4,609,308
- Issue date Sep 2, 1986
- Dowty Mining Equipment Limited
- Nigel Hill
- E21 - EARTH DRILLING MINING
Information Patent Grant
Roof support suitable for use in mines
- Patent number 4,573,828
- Issue date Mar 4, 1986
- Dowty Mining Equipment Limited
- Michael D. Jones
- E21 - EARTH DRILLING MINING
Information Patent Grant
Roof support suitable for use in mines
- Patent number 4,548,527
- Issue date Oct 22, 1985
- Dowty Mining Equipment Limited
- Christopher J. Bishop
- E21 - EARTH DRILLING MINING
Information Patent Grant
Mining equipment, mainly for extraction of heavy beds
- Patent number 4,547,098
- Issue date Oct 15, 1985
- Kozponti Banyaszati Fejlesztesi Intezet
- Matyas Martinko
- E21 - EARTH DRILLING MINING
Information Patent Grant
Mine roof supports
- Patent number 4,534,681
- Issue date Aug 13, 1985
- Gewerkschaft Eisenhutte Westfalia
- Walter Weirich
- E21 - EARTH DRILLING MINING
Information Patent Grant
Roof support for tunnel excavator
- Patent number 4,525,104
- Issue date Jun 25, 1985
- Bergwerksverband GmbH
- Peter Stephan
- E21 - EARTH DRILLING MINING
Information Patent Grant
Roof support suitable for use in mines
- Patent number 4,512,686
- Issue date Apr 23, 1985
- Dowty Mining Equipment Limited
- John H. Waters
- E21 - EARTH DRILLING MINING
Information Patent Grant
Roof support for use in mines
- Patent number 4,492,495
- Issue date Jan 8, 1985
- Dowty Mining Equipment Limited
- Dennis F. Rutherford
- E21 - EARTH DRILLING MINING

Patents Applicationslast 30 patents

Information Patent Application
CONSTRUCTION METHOD FOR CONTINUOUS MINING MACHINE HAVING DEVICE CON...
- Publication number 20210270134
- Publication date Sep 2, 2021
- CHINA UNIVERSITY OF MINING AND TECHNOLOGY
- Nong ZHANG
- E21 - EARTH DRILLING MINING
Information Patent Application
MINING ROCK DEFLECTOR APPARATUS AND METHOD
- Publication number 20200400020
- Publication date Dec 24, 2020
- SWANSON INDUSTRIES, INC.
- Edward Protiva
- E21 - EARTH DRILLING MINING
Information Patent Application
MINING ROCK DEFLECTOR APPARATUS AND METHOD
- Publication number 20190353035
- Publication date Nov 21, 2019
- SWANSON INDUSTRIES, INC.
- Edward Protiva
- E21 - EARTH DRILLING MINING
Information Patent Application
MINE ROOF SUPPORT, PRE-INSTALLATION ASSEMBLY FOR SAME, AND METHOD O...
- Publication number 20190203597
- Publication date Jul 4, 2019
- BURRELL MINING PRODUCTS, INC.
- Don C. Abel
- E21 - EARTH DRILLING MINING
Information Patent Application
SPRAY NOZZLE FOR UNDERGROUND ROOF SUPPORT
- Publication number 20180291739
- Publication date Oct 11, 2018
- Joy Global Underground Mining LLC
- Andrew G. Fairhurst
- E21 - EARTH DRILLING MINING
Information Patent Application
ROOF SUPPORT MONITORING FOR LONGWALL SYSTEM
- Publication number 20170335688
- Publication date Nov 23, 2017
- Joy MM Delaware, Inc.
- Paul M. Siegrist
- E21 - EARTH DRILLING MINING
Information Patent Application
COAL CAVING CYCLE
- Publication number 20130187436
- Publication date Jul 25, 2013
- Maohu Matthew Wang
- E21 - EARTH DRILLING MINING
Information Patent Application
SHIELD CANOPY FOR A SHIELD-TYPE SUPPORT
- Publication number 20120230775
- Publication date Sep 13, 2012
- BUCYRUS EUROPE GMBH
- Dennis Dehmel
- E21 - EARTH DRILLING MINING
Information Patent Application
GOB SHIELD FOR SHIELD SUPPORT AND METHOD FOR THE PRODUCTION THEREOF
- Publication number 20120163926
- Publication date Jun 28, 2012
- BUCYRUS EUROPE GMBH
- Siamak Onsori
- E21 - EARTH DRILLING MINING
Information Patent Application
SHIELD CAP FOR A SHIELD-TYPE MINING SUPPORT
- Publication number 20110142551
- Publication date Jun 16, 2011
- BUCYRUS EUROPE GMBH
- Siamak Onsori
- E21 - EARTH DRILLING MINING
Information Patent Application
Extraction machine for underground ore extraction operations and a...
- Publication number 20030146655
- Publication date Aug 7, 2003
- Ulrich Paschedag
- E21 - EARTH DRILLING MINING
Information Patent Application
Extraction machine for underground ore extraction operations and a...
- Publication number 20020074849
- Publication date Jun 20, 2002
- Ulrich Paschedag
- E21 - EARTH DRILLING MINING

Special mine caps or special tops of pit-props for permitting step-by-step movement

Industry

Parent Industries

Current Industry

Patents Grantslast 30 patents

Mining rock deflector apparatus and method

Mine roof support, pre-installation assembly for same, and method o...

Mining rock deflector apparatus and method

Spray nozzle for underground roof support

Longwall optimization control

Roof support monitoring for longwall system

Spray nozzle for underground roof support

Roof support monitoring for longwall system

Self-moving tunnel support canopy

Shield canopy for a shield-type support

Coal caving cycle

Gob shield for shield support and method for the production thereof

Shield cap for a shield-type mining support

Mining system with drilling, loading, conveyor, and support

Longwall mining with blasting

Shaking control unit for a hydraulic cylinder

Shaking control unit for a hydraulic cylinder

Method of separating the upper coal in seams

Mine roof supports

Roof cap assembly with supporting cylinders for roof support mechanism

Multi-part roof-contacting structures of mine roof supports

Adjustable cap unit

Roof support suitable for use in mines

Roof support suitable for use in mines

Roof support suitable for use in mines

Mining equipment, mainly for extraction of heavy beds

Mine roof supports

Roof support for tunnel excavator

Roof support suitable for use in mines

Roof support for use in mines

Patents Applicationslast 30 patents

CONSTRUCTION METHOD FOR CONTINUOUS MINING MACHINE HAVING DEVICE CON...

MINING ROCK DEFLECTOR APPARATUS AND METHOD

MINING ROCK DEFLECTOR APPARATUS AND METHOD

MINE ROOF SUPPORT, PRE-INSTALLATION ASSEMBLY FOR SAME, AND METHOD O...

SPRAY NOZZLE FOR UNDERGROUND ROOF SUPPORT

ROOF SUPPORT MONITORING FOR LONGWALL SYSTEM

COAL CAVING CYCLE

SHIELD CANOPY FOR A SHIELD-TYPE SUPPORT

GOB SHIELD FOR SHIELD SUPPORT AND METHOD FOR THE PRODUCTION THEREOF

SHIELD CAP FOR A SHIELD-TYPE MINING SUPPORT

Extraction machine for underground ore extraction operations and a...

Extraction machine for underground ore extraction operations and a...