comprising a goaf shield articulated to a base member

Industry

CPC
E21D23/0034

This industry / category may be too specific. Please go to a parent level for more data

Parent Industries

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

Current Industry

E21D23/0034comprising a goaf shield articulated to a base member

Industries

Please log in for detailed analytics

Patents Grantslast 30 patents

Information Patent Grant
Mining shield base lift methods
- Patent number 12,138,721
- Issue date Nov 12, 2024
- Christopher Scott Larew
- B23 - MACHINE TOOLS METAL-WORKING NOT OTHERWISE PROVIDED FOR
Information Patent Grant
Mining shield base lift wear pad
- Patent number 12,103,124
- Issue date Oct 1, 2024
- Christopher Scott Larew
- B23 - MACHINE TOOLS METAL-WORKING NOT OTHERWISE PROVIDED FOR
Information Patent Grant
Roof support connector
- Patent number 10,914,170
- Issue date Feb 9, 2021
- Joy Global Underground Mining LLC
- Nicholas Graeme Barbour
- E21 - EARTH DRILLING MINING
Information Patent Grant
Automated support of a gate entry for underground full extraction m...
- Patent number 10,890,068
- Issue date Jan 12, 2021
- Jefferson David McKenzie
- E21 - EARTH DRILLING MINING
Information Patent Grant
Longwall mine construction method N00
- Patent number 10,494,924
- Issue date Dec 3, 2019
- Manchao He
- E21 - EARTH DRILLING MINING
Information Patent Grant
Method for the controlled maintaining of a distance between the top...
- Patent number 8,567,870
- Issue date Oct 29, 2013
- RAG Aktiengesselschaft
- Martin Junker
- E21 - EARTH DRILLING MINING
Information Patent Grant
Method for automatically creating a defined face opening in longwal...
- Patent number 8,567,871
- Issue date Oct 29, 2013
- RAG Aktiegesellschaft
- Martin Junker
- E21 - EARTH DRILLING MINING
Information Patent Grant
Method for automatically producing a defined face opening in plow o...
- Patent number 8,376,467
- Issue date Feb 19, 2013
- RAG Aktiengesellschaft
- Martin Junker
- E21 - EARTH DRILLING MINING
Information Patent Grant
Powered support frame for large seam thicknesses with controlled ga...
- Patent number 6,481,933
- Issue date Nov 19, 2002
- DBT Deutsche Bergbau-Technik GmbH
- Michael Dettmers
- E21 - EARTH DRILLING MINING
Information Patent Grant
Supporting pillar for mines
- Patent number 4,662,796
- Issue date May 5, 1987
- Bennes Marrel
- Paul Fanget
- 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
Self-advancing support and control means therefor
- Patent number 4,491,441
- Issue date Jan 1, 1985
- Dowty Mining Equipment Limited
- Reginald E. Freeman
- E21 - EARTH DRILLING MINING
Information Patent Grant
Hydraulic mine-roof support
- Patent number 4,474,510
- Issue date Oct 2, 1984
- Hermann Hemscheidt Maschinenfabrik GmbH & Co.
- Hans Bull
- E21 - EARTH DRILLING MINING
Information Patent Grant
Control apparatus
- Patent number 4,443,135
- Issue date Apr 17, 1984
- Gewerkschaft Eisenhutte Westfalia
- Klaus Beckmann
- E21 - EARTH DRILLING MINING
Information Patent Grant
Mine roof supports
- Patent number 4,422,807
- Issue date Dec 27, 1983
- Gewerkschaft Eisenhutte Westfalia
- Michael Dettmers
- E21 - EARTH DRILLING MINING
Information Patent Grant
Mining equipment, mainly for extraction of heavy beds
- Patent number 4,386,878
- Issue date Jun 7, 1983
- Kozponti Banyaszati Fejlesztesi Intezet
- Matvas Martinko
- E21 - EARTH DRILLING MINING
Information Patent Grant
Nine lining structure
- Patent number 4,382,722
- Issue date May 10, 1983
- Centrum Konstrukcyino-Technologiczne Maszyn Gorniczych "KOMAG"
- Stanislaw Romanowicz
- E21 - EARTH DRILLING MINING
Information Patent Grant
Self-advancing mineral mining installation including tilting machin...
- Patent number 4,372,618
- Issue date Feb 8, 1983
- Union Special G.m.b.H.
- John T. Pearey
- E21 - EARTH DRILLING MINING
Information Patent Grant
Mine roof support structure
- Patent number 4,293,246
- Issue date Oct 6, 1981
- Klockner-Werke AG
- Werner Boer
- E21 - EARTH DRILLING MINING
Information Patent Grant
Seals for mine roof supports
- Patent number 4,293,247
- Issue date Oct 6, 1981
- Gewerkschaft Eisenhutte Westfalia
- Harry Rosenberg
- E21 - EARTH DRILLING MINING
Information Patent Grant
Mineral mining installation
- Patent number 4,272,129
- Issue date Jun 9, 1981
- Coal Industry (Patents) Limited
- John T. Pearey
- E21 - EARTH DRILLING MINING
Information Patent Grant
Support assemblies for mine workings
- Patent number 4,266,891
- Issue date May 12, 1981
- Gewerkschaft Eisenhutte Westfalia
- Lubomir Plevak
- E21 - EARTH DRILLING MINING
Information Patent Grant
Device for mining of thick strata of useful minerals
- Patent number 4,240,666
- Issue date Dec 23, 1980
- Centralny Osrodek Projektowokonstrukcyjny Maszyn Gorniczych KOMAG
- Wojciech Podgorski
- E21 - EARTH DRILLING MINING
Information Patent Grant
Shield type support for use in underground mining with lemniscate g...
- Patent number 4,231,684
- Issue date Nov 4, 1980
- Thyssen Industrie AG
- Harry Oppenlander
- E21 - EARTH DRILLING MINING
Information Patent Grant
Advance mechanism for a mine roof support assembly
- Patent number 4,195,953
- Issue date Apr 1, 1980
- Gewerkschaft Eisenhutte Westfalia
- Kunibert Becker
- E21 - EARTH DRILLING MINING
Information Patent Grant
Mine roof supports
- Patent number 4,191,497
- Issue date Mar 4, 1980
- Gewerkschaft Eisenhutte Westfalia
- Helmut Poklekowski
- E21 - EARTH DRILLING MINING
Information Patent Grant
Tensioning a longwall mineral mining installation
- Patent number 4,169,689
- Issue date Oct 2, 1979
- Gewerkschaft Eisenhutte Westfalia
- Walter Weirich
- E21 - EARTH DRILLING MINING
Information Patent Grant
Canopy and shield structure for a supporting shield in a seam-like...
- Patent number 4,136,999
- Issue date Jan 30, 1979
- Thyssen Industrie AG
- Manfred Koppers
- E21 - EARTH DRILLING MINING
Information Patent Grant
Mine roof support
- Patent number 4,132,081
- Issue date Jan 2, 1979
- Dowty Mining Equipment Limited
- John H. Walker
- E21 - EARTH DRILLING MINING
Information Patent Grant
Coal mining method at a long-walled pit face of the coal mine
- Patent number 4,127,303
- Issue date Nov 28, 1978
- Taiheiyo Engineering Incorporated
- Shigeo Nakajima
- E21 - EARTH DRILLING MINING

Patents Applicationslast 30 patents

Information Patent Application
AUTOMATED SUPPORT OF A GATE ENTRY FOR UNDERGROUND FULL EXTRACTION M...
- Publication number 20200190982
- Publication date Jun 18, 2020
- Jefferson David McKenzie
- E21 - EARTH DRILLING MINING
Information Patent Application
ROOF SUPPORT CONNECTOR
- Publication number 20200131906
- Publication date Apr 30, 2020
- Joy Global Underground Mining LLC
- Nicholas Graeme Barbour
- E21 - EARTH DRILLING MINING
Information Patent Application
LONGWALL MINE CONSTRUCTION METHOD N00
- Publication number 20180187547
- Publication date Jul 5, 2018
- Manchao He
- 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
Information Patent Application
Longwall Equipment Having Vertically Adjustable Disc Shearer Loader...
- Publication number 20110163590
- Publication date Jul 7, 2011
- RAG Aktiengesellschaft
- Armin Mozar
- E21 - EARTH DRILLING MINING
Information Patent Application
Method for Automatically Producing a Defined Face Opening in Plow O...
- Publication number 20110006584
- Publication date Jan 13, 2011
- RAG Aktiengesellshaft
- Martin Junker
- E21 - EARTH DRILLING MINING
Information Patent Application
Method for Automatically Creating a Defined Face Opening in Longwal...
- Publication number 20100327650
- Publication date Dec 30, 2010
- RAG AKTIENGESELLSCHAFT
- Martin Junker
- E21 - EARTH DRILLING MINING
Information Patent Application
Method for the Controlled Maintaining of a Distance Between the Top...
- Publication number 20100320827
- Publication date Dec 23, 2010
- RAG AKTIENGESELLSCHAFT
- Martin Junker
- E21 - EARTH DRILLING MINING

comprising a goaf shield articulated to a base member

Industry

Parent Industries

Current Industry

Patents Grantslast 30 patents

Mining shield base lift methods

Mining shield base lift wear pad

Roof support connector

Automated support of a gate entry for underground full extraction m...

Longwall mine construction method N00

Method for the controlled maintaining of a distance between the top...

Method for automatically creating a defined face opening in longwal...

Method for automatically producing a defined face opening in plow o...

Powered support frame for large seam thicknesses with controlled ga...

Supporting pillar for mines

Mining equipment, mainly for extraction of heavy beds

Self-advancing support and control means therefor

Hydraulic mine-roof support

Control apparatus

Mine roof supports

Mining equipment, mainly for extraction of heavy beds

Nine lining structure

Self-advancing mineral mining installation including tilting machin...

Mine roof support structure

Seals for mine roof supports

Mineral mining installation

Support assemblies for mine workings

Device for mining of thick strata of useful minerals

Shield type support for use in underground mining with lemniscate g...

Advance mechanism for a mine roof support assembly

Mine roof supports

Tensioning a longwall mineral mining installation

Canopy and shield structure for a supporting shield in a seam-like...

Mine roof support

Coal mining method at a long-walled pit face of the coal mine

Patents Applicationslast 30 patents

AUTOMATED SUPPORT OF A GATE ENTRY FOR UNDERGROUND FULL EXTRACTION M...

ROOF SUPPORT CONNECTOR

LONGWALL MINE CONSTRUCTION METHOD N00

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

Longwall Equipment Having Vertically Adjustable Disc Shearer Loader...

Method for Automatically Producing a Defined Face Opening in Plow O...

Method for Automatically Creating a Defined Face Opening in Longwal...

Method for the Controlled Maintaining of a Distance Between the Top...