for slewing parts of the machines

Industry

CPC
E21C31/10

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Parent Industries

EFIXED CONSTRUCTIONS E21Mining E21CMINING OR QUARRYING E21C31/00Driving means incorporated in machines for slitting or completely freeing the mineral from the seam

Current Industry

E21C31/10for slewing parts of the machines

Industries

Patents Grantslast 30 patents

Information Patent Grant
Cutting assembly for longwall mining system
- Patent number 11,761,333
- Issue date Sep 19, 2023
- Joy Global Underground Mining LLC
- Edward Niederriter
- E21 - EARTH DRILLING MINING
Information Patent Grant
Mining machine with articulating boom and independent material hand...
- Patent number 11,391,149
- Issue date Jul 19, 2022
- Joy Global Underground Mining LLC
- Nagy Daher
- E21 - EARTH DRILLING MINING
Information Patent Grant
Vertical lifting type drum coal-mining machine without rocker arm
- Patent number 10,746,020
- Issue date Aug 18, 2020
- Yimin Zhang
- E21 - EARTH DRILLING MINING
Information Patent Grant
Underground mining machine
- Patent number 7,350,875
- Issue date Apr 1, 2008
- DBT GmbH
- Siamak Onsori
- E21 - EARTH DRILLING MINING
Information Patent Grant
Mining machine with detachable articulated cutting assembly
- Patent number 6,224,164
- Issue date May 1, 2001
- Joy MM Delaware, Inc.
- Kevin R. Hall
- E21 - EARTH DRILLING MINING
Information Patent Grant
Transmission gearcase for multiple cutting heads
- Patent number 5,964,507
- Issue date Oct 12, 1999
- Mining Technologies, Inc.
- Jon C. Blackstock
- E21 - EARTH DRILLING MINING
Information Patent Grant
Continuous mining machine with a boom assembly providing different...
- Patent number 5,102,199
- Issue date Apr 7, 1992
- Tamrock World Corporation, N.V.
- Maurice K. LeBegue
- E21 - EARTH DRILLING MINING
Information Patent Grant
Drum cutter-loader for underground mining machine
- Patent number 4,889,393
- Issue date Dec 26, 1989
- Gebr. Eickhoff Maschinenfabrik u. EisengieBerei mbH
- Herbert Schupphaus
- E21 - EARTH DRILLING MINING
Information Patent Grant
Ranging drum shearers
- Patent number 4,887,867
- Issue date Dec 19, 1989
- Anderson Strathclyde PLC
- Alexander Porteous
- E21 - EARTH DRILLING MINING
Information Patent Grant
Longwall mining machine for the mining of thick mineral seams
- Patent number 4,883,323
- Issue date Nov 28, 1989
- Gebr. Eickhoff Maschinenfabrik und. Eisengieberei mbH
- Friedhelm Henrich
- E21 - EARTH DRILLING MINING
Information Patent Grant
Cutting machine
- Patent number 4,589,701
- Issue date May 20, 1986
- Gewerkschaft Eisenhutte Westfalia
- Klaus Beckmann
- E21 - EARTH DRILLING MINING
Information Patent Grant
Mining equipment
- Patent number 4,531,782
- Issue date Jul 30, 1985
- Coal Industry (Patents) Ltd.
- John A. Ford
- E21 - EARTH DRILLING MINING
Information Patent Grant
Gimbal mounted on frame with heavy metal plate sides
- Patent number 4,516,338
- Issue date May 14, 1985
- Terradyne Limited
- Jonas L. Roe
- E21 - EARTH DRILLING MINING
Information Patent Grant
Continuous excavating apparatus
- Patent number 4,438,575
- Issue date Mar 27, 1984
- Terradyne Limited
- Jonas L. Roe
- E21 - EARTH DRILLING MINING
Information Patent Grant
Swivelling arrangements
- Patent number 4,361,219
- Issue date Nov 30, 1982
- Coal Industry (Patents) Limited
- William R. Aldridge
- E21 - EARTH DRILLING MINING
Information Patent Grant
Cowl assembly for longwall mining machine
- Patent number 4,346,939
- Issue date Aug 31, 1982
- Gerb. Eickhoff Machinenfabrik und Eisengiesserei m.b.H.
- Rolf Krause
- E21 - EARTH DRILLING MINING
Information Patent Grant
Longwall cutting machines with drum moved by plural power means
- Patent number 4,223,950
- Issue date Sep 23, 1980
- Dowty Meco Limited
- Thomas G. Barr
- E21 - EARTH DRILLING MINING
Information Patent Grant
Swivel mechanism for kerf-cutting machines
- Patent number 4,147,391
- Issue date Apr 3, 1979
- Vereinigte Osterreichische Eisen- und Stahlwerke - Alpine Montan Aktiengesell...
- Gottfried Siebenhofer
- E21 - EARTH DRILLING MINING
Information Patent Grant
Manipulable tool mount
- Patent number 4,141,594
- Issue date Feb 27, 1979
- Gullick Dobson Limited
- Reginald A. Phillips
- E21 - EARTH DRILLING MINING
Information Patent Grant
Low profile mining machine
- Patent number 4,133,582
- Issue date Jan 9, 1979
- Wilhelm J. Kogelmann
- E21 - EARTH DRILLING MINING
Information Patent Grant
Method for cutting minerals and cutting machine
- Patent number 4,111,488
- Issue date Sep 5, 1978
- Vereinigte Osterreichische Eisen- und Stahlwerke - Alpine Montan Aktiengesell...
- Siegfried Sigott
- E21 - EARTH DRILLING MINING
Information Patent Grant
Drum cutter
- Patent number 4,085,974
- Issue date Apr 25, 1978
- Gebr. Eickhoff, Maschinenfabrik und Eisengiesserei m.b.H.
- Willy Lanfermann
- E21 - EARTH DRILLING MINING
Information Patent Grant
Dividing cutting machine
- Patent number 4,070,063
- Issue date Jan 24, 1978
- Vereinigte Osterreichische Eisen- und Stahlwerke-Alpine Montan Aktiengesellsc...
- Peter Kogler
- E21 - EARTH DRILLING MINING
Information Patent Grant
Mining machines
- Patent number 4,062,593
- Issue date Dec 13, 1977
- Coal Industry (Patents) Limited
- Terence John Gapper
- E21 - EARTH DRILLING MINING
Information Patent Grant
Mounting arrangements for mineral displacing tools
- Patent number 4,040,584
- Issue date Aug 9, 1977
- Dobson Park Industries Limited
- Arthur David Thompson
- E21 - EARTH DRILLING MINING
Information Patent Grant
Mining boom linkage for separate sump and swing cutting
- Patent number 3,966,258
- Issue date Jun 29, 1976
- Joy Manufacturing Company
- Matthew J. Dolecki
- E21 - EARTH DRILLING MINING
Information Patent Grant
3907368
- Patent number 3,907,368
- Issue date Sep 23, 1975
- E21 - EARTH DRILLING MINING
Information Patent Grant
3848930
- Patent number 3,848,930
- Issue date Nov 19, 1974
- E21 - EARTH DRILLING MINING
Information Patent Grant
3809432
- Patent number 3,809,432
- Issue date May 7, 1974
- E21 - EARTH DRILLING MINING
Information Patent Grant
3801157
- Patent number 3,801,157
- Issue date Apr 2, 1974
- E21 - EARTH DRILLING MINING

Patents Applicationslast 30 patents

Information Patent Application
METHOD FOR ARRANGING ROLLING-FRICTION STRETCHING AND RETRACTION BAS...
- Publication number 20150315909
- Publication date Nov 5, 2015
- Suhua Liu
- E02 - HYDRAULIC ENGINEERING FOUNDATIONS SOIL SHIFTING
Information Patent Application
Underground Mining Machine
- Publication number 20060232122
- Publication date Oct 19, 2006
- Siamak Onsori
- E21 - EARTH DRILLING MINING

for slewing parts of the machines

Industry

Parent Industries

Current Industry

Patents Grantslast 30 patents

Cutting assembly for longwall mining system

Mining machine with articulating boom and independent material hand...

Vertical lifting type drum coal-mining machine without rocker arm

Underground mining machine

Mining machine with detachable articulated cutting assembly

Transmission gearcase for multiple cutting heads

Continuous mining machine with a boom assembly providing different...

Drum cutter-loader for underground mining machine

Ranging drum shearers

Longwall mining machine for the mining of thick mineral seams

Cutting machine

Mining equipment

Gimbal mounted on frame with heavy metal plate sides

Continuous excavating apparatus

Swivelling arrangements

Cowl assembly for longwall mining machine

Longwall cutting machines with drum moved by plural power means

Swivel mechanism for kerf-cutting machines

Manipulable tool mount

Low profile mining machine

Method for cutting minerals and cutting machine

Drum cutter

Dividing cutting machine

Mining machines

Mounting arrangements for mineral displacing tools

Mining boom linkage for separate sump and swing cutting

3907368

3848930

3809432

3801157

Patents Applicationslast 30 patents

METHOD FOR ARRANGING ROLLING-FRICTION STRETCHING AND RETRACTION BAS...

Underground Mining Machine