Air partitions Air locks

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CPC
E21F1/14

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Parent Industries

EFIXED CONSTRUCTIONS E21Mining E21FSAFETY DEVICES, TRANSPORT, FILLING-UP, RESCUE, VENTILATION, OR DRAINING IN OR OF MINES OR TUNNELS E21F1/00Ventilation of mines or tunnels Distribution of ventilating currents

Current Industry

E21F1/14Air partitions Air locks

Industries

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Patents Grantslast 30 patents

Information Patent Grant
Split air cabin ventilation system for construction of tunnel incli...
- Patent number 11,674,392
- Issue date Jun 13, 2023
- CHINA RAILWAY BEIJING ENGINEERING GROUP CO., LTD
- Shuangqin Chen
- E21 - EARTH DRILLING MINING
Information Patent Grant
Sealing system
- Patent number 11,293,285
- Issue date Apr 5, 2022
- The Secretary of State for Defence
- Duncan Godfrey Mervyn Thompson
- E21 - EARTH DRILLING MINING
Information Patent Grant
Blowing curtain face ventilation system for extended cut mining usi...
- Patent number 10,900,357
- Issue date Jan 26, 2021
- University of Kentucky Research Foundation
- Andrzej M. Wala
- E21 - EARTH DRILLING MINING
Information Patent Grant
Mine stopping and components thereof
- Patent number 10,801,323
- Issue date Oct 13, 2020
- Jack Kennedy Metal Products and Buildings, Inc.
- William R. Kennedy
- E21 - EARTH DRILLING MINING
Information Patent Grant
Barricade wall
- Patent number 10,577,932
- Issue date Mar 3, 2020
- DKR MANUFACTURING INC.
- Roland Lavoie
- E21 - EARTH DRILLING MINING
Information Patent Grant
Adjustable mine ventilation system and method
- Patent number 10,443,381
- Issue date Oct 15, 2019
- GMS Mine Repair and Maintenance, Inc.
- Courtland Joshua Helbig
- F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
Information Patent Grant
Mine stopping panel and method of sealing a mine stopping
- Patent number 10,287,884
- Issue date May 14, 2019
- Jack Kennedy Metal Products and Buildings, Inc.
- William R. Kennedy
- E21 - EARTH DRILLING MINING
Information Patent Grant
Mine stopping panel with end caps and louver connections
- Patent number 10,151,203
- Issue date Dec 11, 2018
- Jack Kennedy Metal Products and Buildings, Inc.
- William R. Kennedy
- E21 - EARTH DRILLING MINING
Information Patent Grant
Pumpable mine ventilation structure
- Patent number 10,001,009
- Issue date Jun 19, 2018
- FCI Holdings Delaware, Inc.
- Joseph P. Bower
- E21 - EARTH DRILLING MINING
Information Patent Grant
Safe haven wall
- Patent number 9,797,250
- Issue date Oct 24, 2017
- Harold Akers
- E21 - EARTH DRILLING MINING
Information Patent Grant
Mine ventilation system and method
- Patent number 9,759,065
- Issue date Sep 12, 2017
- GMS MINE REPAIR AND MAINTENANCE, INC.
- Courtland Joshua Helbig
- E21 - EARTH DRILLING MINING
Information Patent Grant
Mine stopping panel with end caps and louver connections
- Patent number 9,447,684
- Issue date Sep 20, 2016
- Jack Kennedy Metal Products and Buildings, Inc.
- William R. Kennedy
- E21 - EARTH DRILLING MINING
Information Patent Grant
Mine ventilation structure and a deck panel for such a structure
- Patent number 9,447,685
- Issue date Sep 20, 2016
- Jack Kennedy Metal Products and Buildings, Inc.
- William R. Kennedy
- E21 - EARTH DRILLING MINING
Information Patent Grant
Mine ventilation structure and a deck panel for such a structure
- Patent number 9,394,788
- Issue date Jul 19, 2016
- Jack Kennedy Metal Products and Buildings, Inc.
- William R. Kennedy
- E21 - EARTH DRILLING MINING
Information Patent Grant
Pumpable mine ventilation structure
- Patent number 9,022,689
- Issue date May 5, 2015
- Heintzmann Corporation
- Joseph P. Bower
- E21 - EARTH DRILLING MINING
Information Patent Grant
Steel anchored reinforced mine seal
- Patent number 8,966,846
- Issue date Mar 3, 2015
- Frank A. Sisk
- E21 - EARTH DRILLING MINING
Information Patent Grant
Inflatable ventilation life curtain
- Patent number 8,801,510
- Issue date Aug 12, 2014
- Heintzmann Corporation (USA)
- Rodney Howery
- E21 - EARTH DRILLING MINING
Information Patent Grant
Steel anchored reinforced mine seal
- Patent number 8,485,873
- Issue date Jul 16, 2013
- Frank A. Sisk
- E21 - EARTH DRILLING MINING
Information Patent Grant
Mine ventilation
- Patent number 7,232,368
- Issue date Jun 19, 2007
- Jack Kennedy Metal Products and Buildings, Inc.
- William R. Kennedy
- E21 - EARTH DRILLING MINING
Information Patent Grant
Air deflecting mine ventilation structure
- Patent number 7,182,687
- Issue date Feb 27, 2007
- John Matthew Kennedy
- E21 - EARTH DRILLING MINING
Information Patent Grant
Method of supporting mine walls and installing a mine stopping
- Patent number 6,715,961
- Issue date Apr 6, 2004
- Jack Kennedy Metal Products and Buildings, Inc.
- William R. Kennedy
- E21 - EARTH DRILLING MINING
Information Patent Grant
Multiple tier stopping and method of constructing stopping
- Patent number 6,682,263
- Issue date Jan 27, 2004
- Jack Kennedy Metal Products and Buildings, Inc.
- William R. Kennedy
- E21 - EARTH DRILLING MINING
Information Patent Grant
Mine ventilation structure and deck panels therefor
- Patent number 6,669,551
- Issue date Dec 30, 2003
- Jack Kennedy Metal Products and Buildings, Inc.
- William R. Kennedy
- E21 - EARTH DRILLING MINING
Information Patent Grant
Mine stopping
- Patent number 6,457,906
- Issue date Oct 1, 2002
- Jack Kennedy Metal Products and Buildings, Inc.
- William R. Kennedy
- E21 - EARTH DRILLING MINING
Information Patent Grant
Mine door power drive system
- Patent number 6,425,820
- Issue date Jul 30, 2002
- Jack Kennedy Metal Products and Buildings, Inc.
- William R. Kennedy
- E21 - EARTH DRILLING MINING
Information Patent Grant
Foam blocks for construction of mine tunnel stoppings
- Patent number 6,422,790
- Issue date Jul 23, 2002
- Danny Ray Damron
- E21 - EARTH DRILLING MINING
Information Patent Grant
Hinged mine stopping
- Patent number 6,402,611
- Issue date Jun 11, 2002
- David J Rohrbaugh
- E21 - EARTH DRILLING MINING
Information Patent Grant
Mine stopping
- Patent number 6,379,084
- Issue date Apr 30, 2002
- Jack Kennedy Metal Products and Buildings, Inc.
- William R. Kennedy
- E21 - EARTH DRILLING MINING
Information Patent Grant
Prefabricated metal overcast having a crushable lower section
- Patent number 6,334,738
- Issue date Jan 1, 2002
- RAG American Coal Company
- Rudolph J. Juracko
- E21 - EARTH DRILLING MINING
Information Patent Grant
Mine ventilation
- Patent number 6,264,549
- Issue date Jul 24, 2001
- Jack Kennedy Metal Products & Building, Inc.
- William R. Kennedy
- E21 - EARTH DRILLING MINING

Patents Applicationslast 30 patents

Information Patent Application
EXPANDABLE MINE STOPPING PANEL
- Publication number 20220065109
- Publication date Mar 3, 2022
- Richard A. Sparks
- E21 - EARTH DRILLING MINING
Information Patent Application
SPLIT AIR CABIN VENTILATION SYSTEM FOR CONSTRUCTION OF TUNNEL INCLI...
- Publication number 20210207481
- Publication date Jul 8, 2021
- CHINA RAILWAY BEIJING ENGINEERING GROUP CO.,LTD
- Shuangqin CHEN
- E21 - EARTH DRILLING MINING
Information Patent Application
SEALING SYSTEM
- Publication number 20200208520
- Publication date Jul 2, 2020
- The Secretary of State for Defence
- DUNCAN GODFREY MERVYN THOMPSON
- F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
Information Patent Application
MINE STOPPING AND COMPONENTS THEREOF
- Publication number 20190301284
- Publication date Oct 3, 2019
- Jack Kennedy Metal Products & Buildings, Inc.
- William R. Kennedy
- E21 - EARTH DRILLING MINING
Information Patent Application
PUMPABLE MINE VENTILATION STRUCTURE
- Publication number 20180195391
- Publication date Jul 12, 2018
- Heintzmann Corporation
- Joseph P. Bower
- E21 - EARTH DRILLING MINING
Information Patent Application
Overcast System for Mine Ventilation
- Publication number 20170191365
- Publication date Jul 6, 2017
- FCI HOLDINGS DELAWARE, INC.
- John C. Stankus
- E04 - BUILDING
Information Patent Application
ADJUSTABLE MINE VENTILATION SYSTEM AND METHOD
- Publication number 20160348506
- Publication date Dec 1, 2016
- GMS MINE REPAIR AND MAINTENANCE, INC.
- Courtland Joshua Helbig
- E21 - EARTH DRILLING MINING
Information Patent Application
MINE STOPPING PANEL WITH END CAPS AND LOUVER CONNECTIONS
- Publication number 20160281503
- Publication date Sep 29, 2016
- Jack Kennedy Metal Products & Buildings, Inc.
- William R. Kennedy
- E21 - EARTH DRILLING MINING
Information Patent Application
PUMPABLE MINE VENTILATION STRUCTURE
- Publication number 20160245082
- Publication date Aug 25, 2016
- Heintzmann Corporation
- Joseph P. Bower
- E21 - EARTH DRILLING MINING
Information Patent Application
MINE VENTILATION STRUCTURE AND A DECK PANEL FOR SUCH A STRUCTURE
- Publication number 20150315911
- Publication date Nov 5, 2015
- Jack Kennedy Metal Products & Buildings, Inc.
- William R. Kennedy
- E21 - EARTH DRILLING MINING
Information Patent Application
INFLATABLE VENTILATION LIFE CURTAIN
- Publication number 20150011147
- Publication date Jan 8, 2015
- HEINTZMANN CORPORATION (USA)
- Rodney HOWERY
- E21 - EARTH DRILLING MINING
Information Patent Application
Change Over Station and Method
- Publication number 20140349562
- Publication date Nov 27, 2014
- STRATA PRODUCTS WORLDWIDE, LLC
- David Emerson Maust
- E21 - EARTH DRILLING MINING
Information Patent Application
BLOWING CURTAIN FACE VENTILATION SYSTEM FOR EXTENDED CUT MINING USI...
- Publication number 20140329453
- Publication date Nov 6, 2014
- University of Kentucky Research Foundation
- Andrzej M. Wala
- E21 - EARTH DRILLING MINING
Information Patent Application
PUMPABLE MINE VENTILATION STRUCTURE
- Publication number 20140314490
- Publication date Oct 23, 2014
- ABC Industries, Inc.
- Joseph P. Bower
- E21 - EARTH DRILLING MINING
Information Patent Application
C-Channel Panel, Overcast, Stopping and Method
- Publication number 20140308079
- Publication date Oct 16, 2014
- Strata Products Worldwide, LLC
- Jeffrey L. Hamrick
- E02 - HYDRAULIC ENGINEERING FOUNDATIONS SOIL SHIFTING
Information Patent Application
MINE AIRLOCK SYSTEM AND METHOD
- Publication number 20140273791
- Publication date Sep 18, 2014
- Jeffrey L. Justice
- E21 - EARTH DRILLING MINING
Information Patent Application
BOX CHECK FOR CONVEYOR BELT AND METHOD OF INSTALLATION
- Publication number 20140246292
- Publication date Sep 4, 2014
- KENNEDY METAL PRODUCTS & BUILDINGS, INC.
- William R. Kennedy
- E21 - EARTH DRILLING MINING
Information Patent Application
MINE STOPPING PANEL WITH END CAPS AND LOUVER CONNECTIONS
- Publication number 20140057544
- Publication date Feb 27, 2014
- KENNEDY METAL PRODUCTS & BUILDINGS, INC.
- William R. Kennedy
- E21 - EARTH DRILLING MINING
Information Patent Application
PORTABLE VENTILATION CURTAIN FRAME
- Publication number 20120018107
- Publication date Jan 26, 2012
- HEINTZMANN CORPORATION
- Rodney HOWERY
- E21 - EARTH DRILLING MINING
Information Patent Application
UNDERGROUND MINE VENTILATION CURTAIN OR BARRIER
- Publication number 20100144264
- Publication date Jun 10, 2010
- Nils Mittet Skarbovig
- E21 - EARTH DRILLING MINING
Information Patent Application
Tunnel cover for a tunnel for controlled ventilation of gas
- Publication number 20090042504
- Publication date Feb 12, 2009
- Maria Kumm
- E21 - EARTH DRILLING MINING
Information Patent Application
Steel Anchored Reinforced Mine Seal
- Publication number 20070297861
- Publication date Dec 27, 2007
- Frank A. Sisk
- E21 - EARTH DRILLING MINING
Information Patent Application
INFLATABLE VENTILATION LIFE CURTAIN
- Publication number 20070218825
- Publication date Sep 20, 2007
- HEINTZMANN CORPORATION (USA)
- Rodney HOWERY
- E21 - EARTH DRILLING MINING
Information Patent Application
Underground Mine and Method of Mining
- Publication number 20070170771
- Publication date Jul 26, 2007
- PEABODY ENERGY CORPORATION
- Mark Cavinder
- E21 - EARTH DRILLING MINING
Information Patent Application
Air Deflecting mine ventilation structure
- Publication number 20060172683
- Publication date Aug 3, 2006
- John Matthew Kennedy
- E21 - EARTH DRILLING MINING
Information Patent Application
Anchored mine ventilation structure
- Publication number 20060105695
- Publication date May 18, 2006
- William R. Kennedy
- E21 - EARTH DRILLING MINING
Information Patent Application
Mine ventilation
- Publication number 20040067730
- Publication date Apr 8, 2004
- Jack Kennedy Metal Products & Buildings, Inc.
- William R. Kennedy
- E21 - EARTH DRILLING MINING
Information Patent Application
Multiple tier stopping and method of constructing stopping
- Publication number 20030143942
- Publication date Jul 31, 2003
- Jack Kennedy Metal Products & Buildings, Inc.
- William R. Kennedy
- E21 - EARTH DRILLING MINING
Information Patent Application
Mine ventilation structure and deck panels therefor
- Publication number 20030129937
- Publication date Jul 10, 2003
- Jack Kennedy Metal Products & Buildings, Inc.
- William R. Kennedy
- E21 - EARTH DRILLING MINING
Information Patent Application
Mine stopping
- Publication number 20030082010
- Publication date May 1, 2003
- Jack Kennedy Metal Products & Buildings, Inc.
- William R. Kennedy
- E21 - EARTH DRILLING MINING

Air partitions Air locks

Industry

Parent Industries

Current Industry

Patents Grantslast 30 patents

Split air cabin ventilation system for construction of tunnel incli...

Sealing system

Blowing curtain face ventilation system for extended cut mining usi...

Mine stopping and components thereof

Barricade wall

Adjustable mine ventilation system and method

Mine stopping panel and method of sealing a mine stopping

Mine stopping panel with end caps and louver connections

Pumpable mine ventilation structure

Safe haven wall

Mine ventilation system and method

Mine stopping panel with end caps and louver connections

Mine ventilation structure and a deck panel for such a structure

Mine ventilation structure and a deck panel for such a structure

Pumpable mine ventilation structure

Steel anchored reinforced mine seal

Inflatable ventilation life curtain

Steel anchored reinforced mine seal

Mine ventilation

Air deflecting mine ventilation structure

Method of supporting mine walls and installing a mine stopping

Multiple tier stopping and method of constructing stopping

Mine ventilation structure and deck panels therefor

Mine stopping

Mine door power drive system

Foam blocks for construction of mine tunnel stoppings

Hinged mine stopping

Mine stopping

Prefabricated metal overcast having a crushable lower section

Mine ventilation

Patents Applicationslast 30 patents

EXPANDABLE MINE STOPPING PANEL

SPLIT AIR CABIN VENTILATION SYSTEM FOR CONSTRUCTION OF TUNNEL INCLI...

SEALING SYSTEM

MINE STOPPING AND COMPONENTS THEREOF

PUMPABLE MINE VENTILATION STRUCTURE

Overcast System for Mine Ventilation

ADJUSTABLE MINE VENTILATION SYSTEM AND METHOD

MINE STOPPING PANEL WITH END CAPS AND LOUVER CONNECTIONS

PUMPABLE MINE VENTILATION STRUCTURE

MINE VENTILATION STRUCTURE AND A DECK PANEL FOR SUCH A STRUCTURE

INFLATABLE VENTILATION LIFE CURTAIN

Change Over Station and Method

BLOWING CURTAIN FACE VENTILATION SYSTEM FOR EXTENDED CUT MINING USI...

PUMPABLE MINE VENTILATION STRUCTURE

C-Channel Panel, Overcast, Stopping and Method

MINE AIRLOCK SYSTEM AND METHOD

BOX CHECK FOR CONVEYOR BELT AND METHOD OF INSTALLATION

MINE STOPPING PANEL WITH END CAPS AND LOUVER CONNECTIONS

PORTABLE VENTILATION CURTAIN FRAME

UNDERGROUND MINE VENTILATION CURTAIN OR BARRIER

Tunnel cover for a tunnel for controlled ventilation of gas

Steel Anchored Reinforced Mine Seal

INFLATABLE VENTILATION LIFE CURTAIN

Underground Mine and Method of Mining

Air Deflecting mine ventilation structure

Anchored mine ventilation structure

Mine ventilation

Multiple tier stopping and method of constructing stopping

Mine ventilation structure and deck panels therefor

Mine stopping