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Provisional protective covers for working space
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CPC
E21D19/00
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Parent Industries
E
FIXED CONSTRUCTIONS
E21
Mining
E21D
SHAFTS TUNNELS GALLERIES LARGE UNDERGROUND CHAMBERS
Current Industry
E21D19/00
Provisional protective covers for working space
Sub Industries
E21D19/02
for use in longwall working
E21D19/04
for use in drifting galleries
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Patents Grants
last 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
Polymer sheet, method of installing and producing same
Patent number
11,624,280
Issue date
Apr 11, 2023
COREX PLASTICES (AUSTRALIA) PTY LTD
Simon Douglas Whiteley
E21 - EARTH DRILLING MINING
Information
Patent Grant
Method of treating tunnel collapse with roof-contacted shield support
Patent number
11,248,464
Issue date
Feb 15, 2022
Shandong University of Science and Technology
Lin Xin
E21 - EARTH DRILLING MINING
Information
Patent Grant
Polymer sheet, method of installing and producing same
Patent number
11,078,789
Issue date
Aug 3, 2021
COREX PLASTICS (AUSTRALIA) PTY LTD
Simon Douglas Whiteley
B29 - WORKING OF PLASTICS WORKING OF SUBSTANCES IN A PLASTIC STATE, IN GENERAL
Information
Patent Grant
Active temporary roof support apparatus
Patent number
10,815,781
Issue date
Oct 27, 2020
Sandvik Intellectual Property AB
Thomas Galler
E21 - EARTH DRILLING MINING
Information
Patent Grant
Drill and blast method and apparatus for the same
Patent number
10,662,771
Issue date
May 26, 2020
CENTRE FOR EXCELLENCE IN MINING INNOVATION
Douglas Morrison
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
Anti-spalling blocking bar for large cross-section coal gallery exc...
Patent number
10,247,001
Issue date
Apr 2, 2019
China University of Mining and Technology
Shengqi Yang
E21 - EARTH DRILLING MINING
Information
Patent Grant
Drill and blast method and apparatus for the same
Patent number
10,053,984
Issue date
Aug 21, 2018
CENTRE FOR EXCELLENCE IN MINING INNOVATION
Douglas Morrison
E21 - EARTH DRILLING MINING
Information
Patent Grant
Apparatus for forming an underground tunnel
Patent number
9,631,491
Issue date
Apr 25, 2017
Matthew Lumb
E21 - EARTH DRILLING MINING
Information
Patent Grant
Method and related devices for carrying out TBM excavation and expa...
Patent number
9,568,295
Issue date
Feb 14, 2017
Chan Woo Lee
F42 - AMMUNITION BLASTING
Information
Patent Grant
Underground mining apparatus
Patent number
8,920,074
Issue date
Dec 30, 2014
Z-Filter Pty Ltd.
Neil Deryck Bray Graham
E21 - EARTH DRILLING MINING
Information
Patent Grant
Mesh system
Patent number
8,696,251
Issue date
Apr 15, 2014
The University of Western Australia
Yves Potvin
E21 - EARTH DRILLING MINING
Information
Patent Grant
Method and apparatus for lining tunnel walls or tunnel ceilings wit...
Patent number
8,662,796
Issue date
Mar 4, 2014
Geobrugg AG
Shane Brown
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
Method and apparatus for safety protection of temporary roof support
Patent number
6,945,738
Issue date
Sep 20, 2005
DBT America
Roger O'Quinn
E21 - EARTH DRILLING MINING
Information
Patent Grant
Machine used in connection with underground mining having an operat...
Patent number
6,325,460
Issue date
Dec 4, 2001
Joy MM Delaware, Inc.
John R. Frederick
B60 - VEHICLES IN GENERAL
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
Tunnel excavator with crawler drive and roof support bearing frames
Patent number
6,206,478
Issue date
Mar 27, 2001
Ishikawajima-Harima Heavy Industries Co., Ltd.
Toshiaki Uehara
E21 - EARTH DRILLING MINING
Information
Patent Grant
Automated temporary roof support, bolter and method
Patent number
5,938,376
Issue date
Aug 17, 1999
Robert J. Alcaraz
E21 - EARTH DRILLING MINING
Information
Patent Grant
Roof support for underground excavations
Patent number
5,584,611
Issue date
Dec 17, 1996
Long-Airdox
David M. Clonch
E21 - EARTH DRILLING MINING
Information
Patent Grant
High lift temporary roof support for mines
Patent number
5,312,206
Issue date
May 17, 1994
Long-Airdox Company
Paul M. Gaskins
E21 - EARTH DRILLING MINING
Information
Patent Grant
Mine tunnel support system
Patent number
5,306,099
Issue date
Apr 26, 1994
Caledonian Mining Company Limited
Benjamin Mason
E21 - EARTH DRILLING MINING
Information
Patent Grant
Mine tunnel support systems
Patent number
5,176,474
Issue date
Jan 5, 1993
Caledonian Mining Co. Ltd.
Benjamin Mason
E21 - EARTH DRILLING MINING
Information
Patent Grant
Temporary roof support for mines
Patent number
5,156,497
Issue date
Oct 20, 1992
Simmons-Rand Company
Paul M. Gaskins
E21 - EARTH DRILLING MINING
Information
Patent Grant
Movable roof support and bolter system
Patent number
4,710,064
Issue date
Dec 1, 1987
Frank K. Stafford
E21 - EARTH DRILLING MINING
Information
Patent Grant
Movable roof support and bolter system
Patent number
4,676,697
Issue date
Jun 30, 1987
Frank K. Stafford
E21 - EARTH DRILLING MINING
Information
Patent Grant
Device for sealing a drift cross section driven by means of a cutti...
Patent number
4,662,685
Issue date
May 5, 1987
Voest-Alpine Aktiengesellschaft
Franz Barnthaler
E21 - EARTH DRILLING MINING
Information
Patent Grant
Prestressed tunnel lining
Patent number
4,615,644
Issue date
Oct 7, 1986
Mole Constuction Company
Renon M. Hoge
E21 - EARTH DRILLING MINING
Patents Applications
last 30 patents
Information
Patent Application
RESTRAINING DEVICE
Publication number
20240092247
Publication date
Mar 21, 2024
Julien Macameau
B60 - VEHICLES IN GENERAL
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
METHOD OF TREATING TUNNEL COLLAPSE WITH ROOF-CONTACTED SHIELD SUPPORT
Publication number
20210355828
Publication date
Nov 18, 2021
SHANDONG UNIVERSITY OF SCIENCE AND TECHNOLOGY
Lin XIN
E21 - EARTH DRILLING MINING
Information
Patent Application
POLYMER SHEET, METHOD OF INSTALLING AND PRODUCING SAME
Publication number
20210310355
Publication date
Oct 7, 2021
COREX PLASTICS (AUSTRALIA) PTY LTD
Simon Douglas WHITELEY
B29 - WORKING OF PLASTICS WORKING OF SUBSTANCES IN A PLASTIC STATE, IN GENERAL
Information
Patent Application
APPARATUS FOR CONTROLLABLY UNFOLDING FLEXIBLE MESH FOR CONTINUOUS M...
Publication number
20210222553
Publication date
Jul 22, 2021
CHINA UNIVERSITY OF MINING AND TECHNOLOGY
Nong ZHANG
E21 - EARTH DRILLING MINING
Information
Patent Application
RAPID DEVELOPMENT MOBILE CANOPY FOR UNDERGROUND MINING
Publication number
20200040725
Publication date
Feb 6, 2020
NORDIC MINESTEEL TECHNOLOGIES INC.
RONALD P. ELLIOTT
E21 - EARTH DRILLING MINING
Information
Patent Application
POLYMER SHEET, METHOD OF INSTALLING AND PRODUCING SAME
Publication number
20190203598
Publication date
Jul 4, 2019
COREX PLASTICS (AUSTRALIA) PTY LTD
Simon Douglas WHITELEY
E21 - EARTH DRILLING MINING
Information
Patent Application
ACTIVE TEMPORARY ROOF SUPPORT APPARATUS
Publication number
20190153863
Publication date
May 23, 2019
Sandvik Intellectual Property AB
Thomas GALLER
E21 - EARTH DRILLING MINING
Information
Patent Application
DRILL AND BLAST METHOD AND APPARATUS FOR THE SAME
Publication number
20190017379
Publication date
Jan 17, 2019
CENTRE FOR EXCELLENCE IN MINING INNOVATION
Douglas Morrison
E21 - EARTH DRILLING MINING
Information
Patent Application
MOUNTING ASSEMBLY FOR A CROSS-BAR OF AUTOMATED TEMPORARY ROOF SUPPORT
Publication number
20170114638
Publication date
Apr 27, 2017
Caterpillar Global Mining America LLC
David M. Denson
E21 - EARTH DRILLING MINING
Information
Patent Application
DRILL AND BLAST METHOD AND APPARATUS FOR THE SAME
Publication number
20150211367
Publication date
Jul 30, 2015
CENTRE FOR EXCELLENCE IN MINING INNOVATION
Douglas Morrison
E21 - EARTH DRILLING MINING
Information
Patent Application
TUNNELING OR EXTRACTION MACHINE WITH AN ANCHOR-SETTING DEVICE AND S...
Publication number
20150050088
Publication date
Feb 19, 2015
Sandvik Mining and Construction G.m.b.H.
Franz Wels
E21 - EARTH DRILLING MINING
Information
Patent Application
METHOD AND RELATED DEVICES FOR CARRYING OUT TBM EXCAVATION AND EXPA...
Publication number
20130263752
Publication date
Oct 10, 2013
Chan Woo Lee
F42 - AMMUNITION BLASTING
Information
Patent Application
APPARATUS FOR FORMING AN UNDERGROUND TUNNEL
Publication number
20130193744
Publication date
Aug 1, 2013
Matthew Lumb
E21 - EARTH DRILLING MINING
Information
Patent Application
Method and Apparatus for Lining Tunnel Walls or Tunnel Ceilings wit...
Publication number
20110150575
Publication date
Jun 23, 2011
GEOBRUGG AG
Shane Brown
E21 - EARTH DRILLING MINING
Information
Patent Application
MESH SYSTEM
Publication number
20110044770
Publication date
Feb 24, 2011
THE UNIVERSITY OF WESTERN AUSTRALIA
Yves Potvin
E21 - EARTH DRILLING MINING
Information
Patent Application
UNDERGROUND MINING APPARATUS
Publication number
20100284748
Publication date
Nov 11, 2010
Neil Deryck Bray Graham
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
Information
Patent Application
Method and apparatus for safety protection of temporary roof support
Publication number
20050073189
Publication date
Apr 7, 2005
Roger O'Quinn
E21 - EARTH DRILLING MINING