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by means on the machine exerting a thrust against fixed supports
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Industry
CPC
E21C29/02
This industry / category may be too specific. Please go to a parent level for more data
Parent Industries
E
FIXED CONSTRUCTIONS
E21
Mining
E21C
MINING OR QUARRYING
E21C29/00
Propulsion of machines for slitting or completely freeing the mineral from the seam
Current Industry
E21C29/02
by means on the machine exerting a thrust against fixed supports
Industries
Overview
Organizations
People
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Impact
Patents Grants
last 30 patents
Information
Patent Grant
Distributed coal cutting device for longwall face of coal mine
Patent number
12,049,824
Issue date
Jul 30, 2024
Ruifu Yuan
E21 - EARTH DRILLING MINING
Information
Patent Grant
Cable handling system for longwall mining machines
Patent number
11,149,546
Issue date
Oct 19, 2021
Caterpillar Global Mining Europe GmbH
Euan Russell Kirkhope
F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
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
Guide shoe for mining machine
Patent number
10,731,461
Issue date
Aug 4, 2020
Joy Global Underground Mining LLC
Ryan E. Perry
E21 - EARTH DRILLING MINING
Information
Patent Grant
Climb structure for a robot
Patent number
10,526,030
Issue date
Jan 7, 2020
THE HI-TECH ROBOTIC SYSTEMZ LTD
Anuj Kapuria
B62 - LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
Information
Patent Grant
Trapping shoe lubrication system
Patent number
10,215,023
Issue date
Feb 26, 2019
Joy Global Underground Mining LLC
Ryan E. Perry
E21 - EARTH DRILLING MINING
Information
Patent Grant
Support structure for rotary sensor
Patent number
10,180,336
Issue date
Jan 15, 2019
Joy Global Underground Mining LLC
Stephen Bremerkamp
E21 - EARTH DRILLING MINING
Information
Patent Grant
Control method for longwall shearer
Patent number
9,810,066
Issue date
Nov 7, 2017
Caterpillar Global Mining Europe GmbH
Andreas Johannes Westphalen
E21 - EARTH DRILLING MINING
Information
Patent Grant
Drive mechanism for a longwall mining machine
Patent number
9,309,763
Issue date
Apr 12, 2016
Joy MM Delaware, Inc.
Edward F. Niederriter
Y10 - TECHNICAL SUBJECTS COVERED BY FORMER USPC
Information
Patent Grant
Feed system for an underground winning machine, rack bar and drive...
Patent number
9,273,552
Issue date
Mar 1, 2016
Caterpillar Global Mining Europe GmbH
Christoph Pietrala
Y10 - TECHNICAL SUBJECTS COVERED BY FORMER USPC
Information
Patent Grant
Device and method for driving tunnels, galleries or the like
Patent number
9,212,552
Issue date
Dec 15, 2015
Atlas Copco Rock Drills AB
Sverker Hartwig
E21 - EARTH DRILLING MINING
Information
Patent Grant
Lump breaker for mining machine
Patent number
9,140,120
Issue date
Sep 22, 2015
Joy MM Delaware, Inc.
Edward F. Niederriter
E21 - EARTH DRILLING MINING
Information
Patent Grant
Cooling a ranging arm gear case on a longwall shearer
Patent number
9,028,007
Issue date
May 12, 2015
Joy MM Delaware, Inc.
Edward F. Niederriter
F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
Information
Patent Grant
Rack and pinion arrangement for a mining extraction machine and rac...
Patent number
8,944,519
Issue date
Feb 3, 2015
Caterpillar Global Mining Europe GmbH
Christoph Pietrala
E21 - EARTH DRILLING MINING
Information
Patent Grant
Drive mechanism for a longwall mining machine
Patent number
8,789,892
Issue date
Jul 29, 2014
Joy MM Delaware, Inc.
Edward F. Niederriter
E21 - EARTH DRILLING MINING
Information
Patent Grant
Drive transmission method in a longwall shearer loader
Patent number
8,708,136
Issue date
Apr 29, 2014
Famur Spolka Akcyjna
Ryszard Bednarz
E21 - EARTH DRILLING MINING
Information
Patent Grant
Cooling a ranging arm gear case on a longwall shearer
Patent number
8,439,451
Issue date
May 14, 2013
Joy MM Delaware, Inc.
Edward F. Niederriter
F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
Information
Patent Grant
Rack bar haulage system with an improved rackbar
Patent number
8,393,687
Issue date
Mar 12, 2013
Joy MM Delaware, Inc.
Gordon Powell
B61 - RAILWAYS
Information
Patent Grant
Guide shoe for a roller-type loader and wear inserts for guide shoes
Patent number
8,276,991
Issue date
Oct 2, 2012
Caterpillar Global Mining Europe GmbH
John Thomson
E21 - EARTH DRILLING MINING
Information
Patent Grant
Rack bar haulage system with an improved rackbar to line pan connec...
Patent number
8,262,169
Issue date
Sep 11, 2012
Joy MM Delaware, Inc.
Nigel Hill
E21 - EARTH DRILLING MINING
Information
Patent Grant
Shearer-loader drive subassembly and guide shoe for it
Patent number
7,731,298
Issue date
Jun 8, 2010
DBT GmbH
Gerhard Merten
E21 - EARTH DRILLING MINING
Information
Patent Grant
Coal face support in a mine
Patent number
7,494,190
Issue date
Feb 24, 2009
Tiefenbach Control Systems GmbH
Willi Kussel
E21 - EARTH DRILLING MINING
Information
Patent Grant
Shield system for coal mining
Patent number
7,207,632
Issue date
Apr 24, 2007
Sterling Wayne Lowery
B65 - CONVEYING PACKING STORING HANDLING THIN OR FILAMENTARY MATERIAL
Information
Patent Grant
Guide arrangement for a drum-type mineral cutting machine
Patent number
6,267,449
Issue date
Jul 31, 2001
DBT Deutche Bergbau-Technik GmbH
Hans Meya
E21 - EARTH DRILLING MINING
Information
Patent Grant
Drive mechanism for a combined cutter loader
Patent number
5,931,541
Issue date
Aug 3, 1999
Fabryka Maszyn Gorniczych Famur Spolka Acyjna
Kazimierz Pietrzyk
E21 - EARTH DRILLING MINING
Information
Patent Grant
Guide shoe for a cutting machine especially for a drum or disk shearer
Patent number
5,704,267
Issue date
Jan 6, 1998
Deutsche Bergbau-Technik GmbH
Gerhard Merten
E21 - EARTH DRILLING MINING
Information
Patent Grant
Movable rack system for longwall conveyor means
Patent number
5,547,261
Issue date
Aug 20, 1996
Hans J. Kolbl
E21 - EARTH DRILLING MINING
Information
Patent Grant
Scraper chain conveyor
Patent number
5,272,289
Issue date
Dec 21, 1993
American Longwall Mining Corporation
Richard Cocksedge
E21 - EARTH DRILLING MINING
Information
Patent Grant
Element to form a rack for a mining machine haulage system
Patent number
4,993,779
Issue date
Feb 19, 1991
Pitcraft Summit Limited
Richard Cocksedge
E21 - EARTH DRILLING MINING
Information
Patent Grant
Force transmitting housing for longwall mining machine
Patent number
4,943,120
Issue date
Jul 24, 1990
Gebr. Eickhoff Maschinenfabrik u. EisengieBerei
Hans Groger
E21 - EARTH DRILLING MINING
Patents Applications
last 30 patents
Information
Patent Application
RACKBAR ROTATION LIMIT
Publication number
20240301793
Publication date
Sep 12, 2024
Joy Global Underground Mining LLC
Ryan E. Perry
E21 - EARTH DRILLING MINING
Information
Patent Application
GUIDE SHOE FOR MINING MACHINE
Publication number
20240240559
Publication date
Jul 18, 2024
Joy Global Underground Mining LLC
Ryan E. Perry
E21 - EARTH DRILLING MINING
Information
Patent Application
GUIDE SHOE FOR MINING MACHINE
Publication number
20240183272
Publication date
Jun 6, 2024
Joy Global Underground Mining LLC
Ryan E. Perry
E21 - EARTH DRILLING MINING
Information
Patent Application
DISTRIBUTED COAL CUTTING DEVICE FOR LONGWALL FACE OF COAL MINE
Publication number
20230340877
Publication date
Oct 26, 2023
Henan Polytechnic University
Ruifu YUAN
E21 - EARTH DRILLING MINING
Information
Patent Application
GUIDE SHOE FOR MINING MACHINE
Publication number
20170167259
Publication date
Jun 15, 2017
Joy MM Delaware, Inc.
Ryan E. Perry
E21 - EARTH DRILLING MINING
Information
Patent Application
TRAPPING SHOE LUBRICATION SYSTEM
Publication number
20170074097
Publication date
Mar 16, 2017
Joy MM Delaware, Inc.
Ryan E. Perry
E21 - EARTH DRILLING MINING
Information
Patent Application
Device And Method For Driving Tunnels, Galleries Or The Like
Publication number
20150152728
Publication date
Jun 4, 2015
Sverker Hartwig
E21 - EARTH DRILLING MINING
Information
Patent Application
DRIVE MECHANISM FOR A LONGWALL MINING MACHINE
Publication number
20150008720
Publication date
Jan 8, 2015
Joy MM Delaware, Inc.
Edward F. Niederriter
E21 - EARTH DRILLING MINING
Information
Patent Application
LUMP BREAKER FOR MINING MACHINE
Publication number
20140084666
Publication date
Mar 27, 2014
Edward F. Niederriter
E21 - EARTH DRILLING MINING
Information
Patent Application
Drive Transmission Method in a Longwall Shearer Loader
Publication number
20120279831
Publication date
Nov 8, 2012
FAMUR INSTITUTE SP. Z O.O.
Ryszard Bednarz
E21 - EARTH DRILLING MINING
Information
Patent Application
FEED SYSTEM FOR AN UNDERGROUND WINNING MACHINE, RACK BAR AND DRIVE...
Publication number
20120198950
Publication date
Aug 9, 2012
BUCYRUS EUROPE GMBH
Christoph Pietrala
E21 - EARTH DRILLING MINING
Information
Patent Application
RACK AND PINION ARRANGEMENT FOR A MINING EXTRACTION MACHINE AND RAC...
Publication number
20120111133
Publication date
May 10, 2012
BUCYRUS EUROPE GMBH
Christoph Pietrala
E21 - EARTH DRILLING MINING
Information
Patent Application
DRIVE MECHANISM FOR A LONGWALL MINING MACHINE
Publication number
20120104832
Publication date
May 3, 2012
Edward F. Niederriter
E21 - EARTH DRILLING MINING
Information
Patent Application
RACK ARRANGEMENT FOR UNDERGROUND WINNING INSTALLATIONS AND BEARING...
Publication number
20120031210
Publication date
Feb 9, 2012
BUCYRUS EUROPE GMBH
Siegfried Schmidt
E21 - EARTH DRILLING MINING
Information
Patent Application
COOLING A RANGING ARM GEAR CASE ON A LONGWALL SHEARER
Publication number
20110309669
Publication date
Dec 22, 2011
Edward F. Niederriter
E21 - EARTH DRILLING MINING
Information
Patent Application
RACK BAR HAULAGE SYSTEM WITH AN IMPROVED RACKBAR
Publication number
20110239896
Publication date
Oct 6, 2011
Joy MM Delaware, Inc.
Gordon Powell
B61 - RAILWAYS
Information
Patent Application
RACK BAR HAULAGE SYSTEM WITH AN IMPROVED RACKBAR TO LINE PAN CONNEC...
Publication number
20110181095
Publication date
Jul 28, 2011
Joy MM Delaware, Inc.
Nigel Hill
E21 - EARTH DRILLING MINING
Information
Patent Application
RACK BAR HAULAGE SYSTEM WITH AN IMPROVED RACKBAR TO LINE PAN CONNEC...
Publication number
20110181096
Publication date
Jul 28, 2011
Joy MM Delaware, Inc.
Nigel Hill
E21 - EARTH DRILLING MINING
Information
Patent Application
COOLING A RANGING ARM GEAR CASE ON A LONGWALL SHEARER
Publication number
20100301660
Publication date
Dec 2, 2010
JOY MM DELAWARE
Edward F. Niederriter
E21 - EARTH DRILLING MINING
Information
Patent Application
GUIDE SHOE FOR A ROLLER-TYPE LOADER AND WEAR INSERTS FOR GUIDE SHOES
Publication number
20100019563
Publication date
Jan 28, 2010
John Thomson
E21 - EARTH DRILLING MINING
Information
Patent Application
SHEARER-LOADER DRIVE SUBASSEMBLY AND GUIDE SHOE FOR IT
Publication number
20080011585
Publication date
Jan 17, 2008
Gerhard Merten
E21 - EARTH DRILLING MINING
Information
Patent Application
Coal face support in a mine
Publication number
20060267395
Publication date
Nov 30, 2006
Willi Kussel
E21 - EARTH DRILLING MINING
Information
Patent Application
Advancer for coal mining system
Publication number
20040245844
Publication date
Dec 9, 2004
Sterling Wayne Lowery
E21 - EARTH DRILLING MINING
Information
Patent Application
Platform and driver for coal mining system
Publication number
20040245843
Publication date
Dec 9, 2004
Sterling Wayne Lowery
E21 - EARTH DRILLING MINING
Information
Patent Application
Shield system for coal mining
Publication number
20040245845
Publication date
Dec 9, 2004
Sterling Wayne Lowery
E21 - EARTH DRILLING MINING