for use in longwall working

Industry

CPC
E21D19/02

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Parent Industries

EFIXED CONSTRUCTIONS E21Mining E21DSHAFTS TUNNELS GALLERIES LARGE UNDERGROUND CHAMBERS E21D19/00Provisional protective covers for working space

Current Industry

E21D19/02for use in longwall working

Industries

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Patents Grantslast 30 patents

Information Patent Grant
Method of no-pillar mining with gob-entry retaining adapted for ful...
- Patent number 12,037,905
- Issue date Jul 16, 2024
- CHINA UNIVERSITY OF MINING & TECHNOLOGY, BEIJING
- Jiong Wang
- E21 - EARTH DRILLING MINING
Information Patent Grant
Swing arm plow apparatuses and methods
- Patent number 12,000,284
- Issue date Jun 4, 2024
- Jason Sleeth
- 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
Apparatus, system, and method for supporting a gate entry for under...
- Patent number 7,331,735
- Issue date Feb 19, 2008
- Jefferson D. McKenzie
- E21 - EARTH DRILLING MINING
Information Patent Grant
Toggle type temporary roof support for mining machinery
- Patent number 4,460,294
- Issue date Jul 17, 1984
- Schroeder Brothers Corporation
- William R. Cobb
- E21 - EARTH DRILLING MINING
Information Patent Grant
Method of and apparatus for applying mat to the roof of a mine working
- Patent number 4,379,660
- Issue date Apr 12, 1983
- Karl M. Groetschel
- E21 - EARTH DRILLING MINING
Information Patent Grant
Apparatus for supporting the roof of an underground mine working
- Patent number 4,358,159
- Issue date Nov 9, 1982
- Karl M. Groetschel
- E21 - EARTH DRILLING MINING
Information Patent Grant
Equipment for laying a layer of elongate material adjacent to an ex...
- Patent number 4,339,216
- Issue date Jul 13, 1982
- Coal Industry (Patents) Limited
- Roy L. Bell
- E21 - EARTH DRILLING MINING
Information Patent Grant
Pivotal roof bolter and extendable rotatable protective canopy for...
- Patent number 4,297,057
- Issue date Oct 27, 1981
- Dresser Industries, Inc.
- John C. O'Neil
- E21 - EARTH DRILLING MINING
Information Patent Grant
Vehicle mounted temporary roof support
- Patent number 4,252,475
- Issue date Feb 24, 1981
- Schroeder Brothers Corporation
- William R. Cobb
- E21 - EARTH DRILLING MINING
Information Patent Grant
Fastening means for roof mats for mine workings
- Patent number 4,251,168
- Issue date Feb 17, 1981
- Karl M. Groetschel
- E21 - EARTH DRILLING MINING
Information Patent Grant
Equipment for laying a layer of elongate material
- Patent number 4,230,371
- Issue date Oct 28, 1980
- Coal Industry Limited
- Roy L. Bell
- E21 - EARTH DRILLING MINING
Information Patent Grant
Cowl arrangements for mining machines
- Patent number 4,229,043
- Issue date Oct 21, 1980
- Coal Industry (Patents) Limited
- Roy L. Bell
- E21 - EARTH DRILLING MINING
Information Patent Grant
Equipment for laying elongate material
- Patent number 4,196,935
- Issue date Apr 8, 1980
- Coal Industry (Patents) Limited
- Eric Dring
- E21 - EARTH DRILLING MINING
Information Patent Grant
Protective canopy and temporary roof support for mining machinery
- Patent number 4,190,385
- Issue date Feb 26, 1980
- Ray Childress
- E21 - EARTH DRILLING MINING
Information Patent Grant
Sheltering apparatus for use in long wall mining
- Patent number 4,189,257
- Issue date Feb 19, 1980
- Taiheiyo Engineering Inc.
- Shigeo Nakajima
- E21 - EARTH DRILLING MINING
Information Patent Grant
Combination cab and canopy for mine roof bolting machine
- Patent number 4,173,371
- Issue date Nov 6, 1979
- Kogen Industries, Inc.
- Peter P. Kopas
- E21 - EARTH DRILLING MINING
Information Patent Grant
Methods of and apparatus for applying roof mats to mine workings
- Patent number 4,122,682
- Issue date Oct 31, 1978
- Karl M. Groetschel
- E21 - EARTH DRILLING MINING
Information Patent Grant
Method and apparatus for supporting the roof of an underground mine...
- Patent number 4,099,785
- Issue date Jul 11, 1978
- Karl Maria Groetschel
- E21 - EARTH DRILLING MINING
Information Patent Grant
Loading gate for mine roof bolter apparatus
- Patent number 4,094,158
- Issue date Jun 13, 1978
- The United States of America as represented by the Secretary of the Interior
- Richard W. LeVere
- E21 - EARTH DRILLING MINING
Information Patent Grant
Mine roof support for a mobile drilling machine
- Patent number 4,079,792
- Issue date Mar 21, 1978
- Mining Equipment Division, a division of FMC Corporation
- Edwin B. Paul
- E21 - EARTH DRILLING MINING
Information Patent Grant
Safety shield and temporary roof support
- Patent number 4,050,259
- Issue date Sep 27, 1977
- Ray Childress
- E21 - EARTH DRILLING MINING
Information Patent Grant
Movable roof support mechanism
- Patent number 4,026,118
- Issue date May 31, 1977
- The United States of America as represented by the Secretary of the Interior
- Frank Vernon McCay
- E21 - EARTH DRILLING MINING
Information Patent Grant
Mine roof support
- Patent number 3,996,753
- Issue date Dec 14, 1976
- Becorit Grubenausbau GmbH
- Walter Lubojatsky
- E21 - EARTH DRILLING MINING
Information Patent Grant
Method and apparatus for mining and supporting the mine roof
- Patent number 3,964,265
- Issue date Jun 22, 1976
- Consolidation Coal Company
- Will B. Jamison
- E21 - EARTH DRILLING MINING
Information Patent Grant
3854293
- Patent number 3,854,293
- Issue date Dec 17, 1974
- E21 - EARTH DRILLING MINING
Information Patent Grant
3830456
- Patent number 3,830,456
- Issue date Aug 20, 1974
- E21 - EARTH DRILLING MINING
Information Patent Grant
3466875
- Patent number 3,466,875
- Issue date Sep 16, 1969
- E21 - EARTH DRILLING MINING
Information Patent Grant
3399927
- Patent number 3,399,927
- Issue date Sep 3, 1968
- E21 - EARTH DRILLING MINING
Information Patent Grant
2711634
- Patent number 2,711,634
- Issue date Jun 28, 1955
- E21 - EARTH DRILLING MINING

Patents Applicationslast 30 patents

Information Patent Application
METHOD OF NO-PILLAR MINING WITH GOB-ENTRY RETAINING ADAPTED FOR FUL...
- Publication number 20220275726
- Publication date Sep 1, 2022
- CHINA UNIVERSITY OF MINING & TECHNOLOGY, BEIJING
- Jiong WANG
- 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
Apparatus, system, and method for supporting a gate entry for under...
- Publication number 20060158017
- Publication date Jul 20, 2006
- Jefferson D. McKenzie
- E21 - EARTH DRILLING MINING

for use in longwall working

Industry

Parent Industries

Current Industry

Patents Grantslast 30 patents

Method of no-pillar mining with gob-entry retaining adapted for ful...

Swing arm plow apparatuses and methods

Longwall mine construction method N00

Apparatus, system, and method for supporting a gate entry for under...

Toggle type temporary roof support for mining machinery

Method of and apparatus for applying mat to the roof of a mine working

Apparatus for supporting the roof of an underground mine working

Equipment for laying a layer of elongate material adjacent to an ex...

Pivotal roof bolter and extendable rotatable protective canopy for...

Vehicle mounted temporary roof support

Fastening means for roof mats for mine workings

Equipment for laying a layer of elongate material

Cowl arrangements for mining machines

Equipment for laying elongate material

Protective canopy and temporary roof support for mining machinery

Sheltering apparatus for use in long wall mining

Combination cab and canopy for mine roof bolting machine

Methods of and apparatus for applying roof mats to mine workings

Method and apparatus for supporting the roof of an underground mine...

Loading gate for mine roof bolter apparatus

Mine roof support for a mobile drilling machine

Safety shield and temporary roof support

Movable roof support mechanism

Mine roof support

Method and apparatus for mining and supporting the mine roof

3854293

3830456

3466875

3399927

2711634

Patents Applicationslast 30 patents

METHOD OF NO-PILLAR MINING WITH GOB-ENTRY RETAINING ADAPTED FOR FUL...

METHOD AND DEVICE FOR MONITORING OPERATION OF A MINING MACHINE UNIT

Apparatus, system, and method for supporting a gate entry for under...