Fluid barriers

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CPC
E21F5/143

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Parent Industries

EFIXED CONSTRUCTIONS E21Mining E21FSAFETY DEVICES, TRANSPORT, FILLING-UP, RESCUE, VENTILATION, OR DRAINING IN OR OF MINES OR TUNNELS E21F5/00Means or methods for preventing, binding, depositing, or removing dust Preventing explosions or fires

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E21F5/143Fluid barriers

Industries

Patents Grantslast 30 patents

Information Patent Grant
Combined automatic anti-explosion method for gas drainage pipeline
- Patent number 10,612,379
- Issue date Apr 7, 2020
- CHINA UNIVERSITY OF MINING AND TECHNOLOGY
- Caiping Lu
- E21 - EARTH DRILLING MINING
Information Patent Grant
Explosion protection system
- Patent number 10,252,092
- Issue date Apr 9, 2019
- LEPL G. TSULUKIDZE MINING INSTITUTE
- Edgar Mataradze
- E21 - EARTH DRILLING MINING
Information Patent Grant
Passive explosion barrier for mines
- Patent number 4,284,144
- Issue date Aug 18, 1981
- The United States of America as represented by the Secretary of the Interior
- Israel Liebman
- E21 - EARTH DRILLING MINING
Information Patent Grant
Passive explosion barrier
- Patent number 3,960,217
- Issue date Jun 1, 1976
- The United States of America as represented by the Secretary of the Interior
- Israel Liebman
- E21 - EARTH DRILLING MINING
Information Patent Grant
Pressure sensitive explosion barrier
- Patent number 3,958,644
- Issue date May 25, 1976
- The United States of America as represented by the Secretary of the Interior
- Israel Liebman
- E21 - EARTH DRILLING MINING

Patents Applicationslast 30 patents

Information Patent Application
EXPLOSION PROTECTION SYSTEM
- Publication number 20180161609
- Publication date Jun 14, 2018
- LEPL G. TSULUKIDZE MINING INSTITUTE
- Edgar MATARADZE
- E21 - EARTH DRILLING MINING