Ventilation arrangements in connection with air ducts

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E21F1/08

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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

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E21F1/08Ventilation arrangements in connection with air ducts

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Patents Grantslast 30 patents

Information Patent Grant
Flood protection for underground air vents
- Patent number 11,946,376
- Issue date Apr 2, 2024
- FLOODBREAK L.L.C.
- Louis A. Waters
- E21 - EARTH DRILLING MINING
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
Dry filter with enhanced separation output and convenient dimensions
- Patent number 11,103,820
- Issue date Aug 31, 2021
- CFT GmbH Compact Filter Technic
- Christian Haubold
- E21 - EARTH DRILLING MINING
Information Patent Grant
Flood protection for underground air vents
- Patent number 10,435,908
- Issue date Oct 8, 2019
- Floodbreak, L.L.C.
- Louis A. Waters
- E02 - HYDRAULIC ENGINEERING FOUNDATIONS SOIL SHIFTING
Information Patent Grant
Flood protection for underground air vents
- Patent number 10,435,906
- Issue date Oct 8, 2019
- Floodbreak, L.L.C.
- Louis A. Waters
- E02 - HYDRAULIC ENGINEERING FOUNDATIONS SOIL SHIFTING
Information Patent Grant
Flood protection for underground air vents
- Patent number 10,435,907
- Issue date Oct 8, 2019
- Floodbreak, L.L.C.
- Louis A. Waters
- E02 - HYDRAULIC ENGINEERING FOUNDATIONS SOIL SHIFTING
Information Patent Grant
Flood protection for underground air vents
- Patent number 10,435,910
- Issue date Oct 8, 2019
- Floodbreak, L.L.C.
- Louis A. Waters
- E02 - HYDRAULIC ENGINEERING FOUNDATIONS SOIL SHIFTING
Information Patent Grant
Flood protection for underground air vents
- Patent number 10,435,909
- Issue date Oct 8, 2019
- Floodbreak, L.L.C.
- Louis A. Waters
- E02 - HYDRAULIC ENGINEERING FOUNDATIONS SOIL SHIFTING
Information Patent Grant
Flood protection for underground air vents
- Patent number 10,106,945
- Issue date Oct 23, 2018
- Floodbreak, L.L.C.
- Louis A. Waters
- E05 - LOCKS KEYS WINDOW OR DOOR FITTINGS SAFES
Information Patent Grant
Method and system for tunnel ventilation in normal conditions and i...
- Patent number 9,752,436
- Issue date Sep 5, 2017
- Ivor Pavetic
- E21 - EARTH DRILLING MINING
Information Patent Grant
Ventilator and blade therefor
- Patent number 9,664,399
- Issue date May 30, 2017
- CSR Building Products Limited
- Tarek Alfakhrany
- F05 - INDEXING SCHEMES RELATING TO ENGINES OR PUMPS IN VARIOUS SUBCLASSES OF...
Information Patent Grant
Automatic flooding protection for underground ventilation ducts
- Patent number 8,033,753
- Issue date Oct 11, 2011
- Floodbreak, L.L.C.
- Louis A. Waters, Jr.
- E21 - EARTH DRILLING MINING
Information Patent Grant
2565854
- Patent number 2,565,854
- Issue date Aug 28, 1951
- E21 - EARTH DRILLING MINING
Information Patent Grant
2281202
- Patent number 2,281,202
- Issue date Apr 28, 1942
- E21 - EARTH DRILLING MINING
Information Patent Grant
1917439
- Patent number 1,917,439
- Issue date Jul 11, 1933
- E21 - EARTH DRILLING MINING
Information Patent Grant
1274438
- Patent number 1,274,438
- Issue date Aug 6, 1918
- E21 - EARTH DRILLING MINING

Patents Applicationslast 30 patents

Information Patent Application
FLOOD PROTECTION FOR UNDERGROUND AIR VENTS
- Publication number 20220268158
- Publication date Aug 25, 2022
- Floodbreak, L.L.C.
- Louis A. Waters
- E21 - EARTH DRILLING MINING
Information Patent Application
SYSTEM AND METHOD FOR DUCTED VENTILATION
- Publication number 20210156252
- Publication date May 27, 2021
- MINETEK INVESTMENTS PTY LTD
- Remy Marcel Sydney Bourcier
- F05 - INDEXING SCHEMES RELATING TO ENGINES OR PUMPS IN VARIOUS SUBCLASSES OF...
Information Patent Application
BLOWER AND VENTILATION SYSTEM
- Publication number 20210071405
- Publication date Mar 11, 2021
- TOKYO METROPOLITAN SEWERAGE SERVICE CORPORATION
- Yukitoshi IWASA
- E21 - EARTH DRILLING MINING
Information Patent Application
METHOD OF MINING SINGLE STEEPLY-INCLINED THICK COAL SEAM
- Publication number 20200024944
- Publication date Jan 23, 2020
- Shandong University of Science and Technology
- Zhongping GUO
- E21 - EARTH DRILLING MINING
Information Patent Application
Dry Filter with Enhanced Separation Output and Convenient Dimensions
- Publication number 20190201827
- Publication date Jul 4, 2019
- CFT GMBH Compact Filter Technic
- Christian Haubold
- B01 - PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
Information Patent Application
FLOOD PROTECTION FOR UNDERGROUND AIR VENTS
- Publication number 20180112370
- Publication date Apr 26, 2018
- Louis A. Waters
- E05 - LOCKS KEYS WINDOW OR DOOR FITTINGS SAFES
Information Patent Application
BLOWER AND VENTILATING SYSTEM
- Publication number 20180087261
- Publication date Mar 29, 2018
- TOKYO METROPOLITAN SEWERAGE SERVICE CORPORATION
- Yukitoshi IWASA
- E03 - WATER SUPPLY SEWERAGE
Information Patent Application
FLOOD PROTECTION FOR UNDERGROUND AIR VENTS
- Publication number 20170343238
- Publication date Nov 30, 2017
- Louis A. Waters
- E05 - LOCKS KEYS WINDOW OR DOOR FITTINGS SAFES
Information Patent Application
FLOOD PROTECTION FOR UNDERGROUND AIR VENTS
- Publication number 20170343237
- Publication date Nov 30, 2017
- Louis A. Waters
- E05 - LOCKS KEYS WINDOW OR DOOR FITTINGS SAFES
Information Patent Application
FLOOD PROTECTION FOR UNDERGROUND AIR VENTS
- Publication number 20170314808
- Publication date Nov 2, 2017
- Louis A. Waters
- E02 - HYDRAULIC ENGINEERING FOUNDATIONS SOIL SHIFTING
Information Patent Application
FLOOD PROTECTION FOR UNDERGROUND AIR VENTS
- Publication number 20170314809
- Publication date Nov 2, 2017
- Louis A. Waters
- E02 - HYDRAULIC ENGINEERING FOUNDATIONS SOIL SHIFTING
Information Patent Application
FLOOD PROTECTION FOR UNDERGROUND AIR VENTS
- Publication number 20170314810
- Publication date Nov 2, 2017
- Louis A. Waters
- E02 - HYDRAULIC ENGINEERING FOUNDATIONS SOIL SHIFTING
Information Patent Application
VENTILATION DUCTING SYSTEMS & METHODS
- Publication number 20160333692
- Publication date Nov 17, 2016
- Darren Gilbertson
- F24 - HEATING RANGES VENTILATING
Information Patent Application
SYSTEM AND METHOD FOR EXTRACTION OF SMOKE FROM ROAD TUNNELS
- Publication number 20160305244
- Publication date Oct 20, 2016
- Tunnel Air Systems AS
- Rune Storrosaeter
- E21 - EARTH DRILLING MINING
Information Patent Application
ENERGY-EFFICIENT TUNNEL VENTILATION DEVICE
- Publication number 20160025105
- Publication date Jan 28, 2016
- Fathi TARADA
- F04 - POSITIVE DISPLACEMENT MACHINES FOR LIQUIDS PUMPS FOR LIQUIDS OR ELASTIC...
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
DUAL UNDERGROUND TUNNEL SYSTEM FOR HYDROCARBON EXPLOITATION
- Publication number 20140262219
- Publication date Sep 18, 2014
- Richard Beddoes
- E21 - EARTH DRILLING MINING
Information Patent Application
SYSTEM AND APPARATUS FOR CONNECTING A GAS SOURCE TO A THERMAL OXIDISER
- Publication number 20130340872
- Publication date Dec 26, 2013
- CORKY'S MANAGEMENT SERVICES PTY LTD
- David John Cork
- B01 - PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
Information Patent Application
Method And System For Tunnel Ventilation In Normal Conditions And I...
- Publication number 20130137356
- Publication date May 30, 2013
- Ivor Pavetic
- E21 - EARTH DRILLING MINING
Information Patent Application
Automatic flooding protection for underground ventilation ducts
- Publication number 20090185864
- Publication date Jul 23, 2009
- Floodbreak,L.L.C.
- Louis A. Waters, JR.
- 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
Airflow Regulator
- Publication number 20080254733
- Publication date Oct 16, 2008
- Verne Mutton
- F24 - HEATING RANGES VENTILATING

Ventilation arrangements in connection with air ducts

Industry

Parent Industries

Current Industry

Patents Grantslast 30 patents

Flood protection for underground air vents

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

Dry filter with enhanced separation output and convenient dimensions

Flood protection for underground air vents

Flood protection for underground air vents

Flood protection for underground air vents

Flood protection for underground air vents

Flood protection for underground air vents

Flood protection for underground air vents

Method and system for tunnel ventilation in normal conditions and i...

Ventilator and blade therefor

Automatic flooding protection for underground ventilation ducts

2565854

2281202

1917439

1274438

Patents Applicationslast 30 patents

FLOOD PROTECTION FOR UNDERGROUND AIR VENTS

SYSTEM AND METHOD FOR DUCTED VENTILATION

BLOWER AND VENTILATION SYSTEM

METHOD OF MINING SINGLE STEEPLY-INCLINED THICK COAL SEAM

Dry Filter with Enhanced Separation Output and Convenient Dimensions

FLOOD PROTECTION FOR UNDERGROUND AIR VENTS

BLOWER AND VENTILATING SYSTEM

FLOOD PROTECTION FOR UNDERGROUND AIR VENTS

FLOOD PROTECTION FOR UNDERGROUND AIR VENTS

FLOOD PROTECTION FOR UNDERGROUND AIR VENTS

FLOOD PROTECTION FOR UNDERGROUND AIR VENTS

FLOOD PROTECTION FOR UNDERGROUND AIR VENTS

VENTILATION DUCTING SYSTEMS & METHODS

SYSTEM AND METHOD FOR EXTRACTION OF SMOKE FROM ROAD TUNNELS

ENERGY-EFFICIENT TUNNEL VENTILATION DEVICE

Change Over Station and Method

DUAL UNDERGROUND TUNNEL SYSTEM FOR HYDROCARBON EXPLOITATION

SYSTEM AND APPARATUS FOR CONNECTING A GAS SOURCE TO A THERMAL OXIDISER

Method And System For Tunnel Ventilation In Normal Conditions And I...

Automatic flooding protection for underground ventilation ducts

Tunnel cover for a tunnel for controlled ventilation of gas

Airflow Regulator