GB2017313B - System for monitoring methane concentration - Google Patents

System for monitoring methane concentration

Info

Publication number: GB2017313B
Authority: GB; United Kingdom
Prior art keywords: methane concentration; monitoring methane; monitoring; concentration; methane
Prior art date: 1978-03-21
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.): Expired

Application number

GB7909949A

Other versions

GB2017313A (en

Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)

OS BAD ROZWOJOWY SYST MECH

Original Assignee

OS BAD ROZWOJOWY SYST MECH

Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)

1978-03-21

Filing date

1979-03-21

Publication date

1982-10-06

1979-03-21 Application filed by OS BAD ROZWOJOWY SYST MECH filed Critical OS BAD ROZWOJOWY SYST MECH

1979-10-03 Publication of GB2017313A publication Critical patent/GB2017313A/en

1982-10-06 Application granted granted Critical

1982-10-06 Publication of GB2017313B publication Critical patent/GB2017313B/en

Status Expired legal-status Critical Current

Classifications

- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N33/00—Investigating or analysing materials by specific methods not covered by groups G01N1/00 - G01N31/00
- G01N33/0004—Gaseous mixtures, e.g. polluted air
- G01N33/0009—General constructional details of gas analysers, e.g. portable test equipment
- G01N33/0062—General constructional details of gas analysers, e.g. portable test equipment concerning the measuring method or the display, e.g. intermittent measurement or digital display
- G01N33/0063—General constructional details of gas analysers, e.g. portable test equipment concerning the measuring method or the display, e.g. intermittent measurement or digital display using a threshold to release an alarm or displaying means

Landscapes

Chemical & Material Sciences (AREA)
Life Sciences & Earth Sciences (AREA)
Engineering & Computer Science (AREA)
Health & Medical Sciences (AREA)
Analytical Chemistry (AREA)
General Physics & Mathematics (AREA)
Medicinal Chemistry (AREA)
Physics & Mathematics (AREA)
Combustion & Propulsion (AREA)
Biochemistry (AREA)
General Health & Medical Sciences (AREA)
Food Science & Technology (AREA)
Immunology (AREA)
Pathology (AREA)
Recording Measured Values (AREA)
Emergency Alarm Devices (AREA)
Arrangements For Transmission Of Measured Signals (AREA)
Investigating Or Analyzing Materials By The Use Of Electric Means (AREA)
Control Of Non-Electrical Variables (AREA)

GB7909949A 1978-03-21 1979-03-21 System for monitoring methane concentration Expired GB2017313B (en)

Applications Claiming Priority (1)

Application Number	Priority Date	Filing Date	Title
PL20550178A PL122880B1 (en)	1978-03-21	1978-03-21	Modular dispatcher's system, especially for methane concentration check

Publications (2)

Publication Number	Publication Date
GB2017313A GB2017313A (en)	1979-10-03
GB2017313B true GB2017313B (en)	1982-10-06

Family

ID=19988215

Family Applications (1)

Application Number	Title	Priority Date	Filing Date
GB7909949A Expired GB2017313B (en)	1978-03-21	1979-03-21	System for monitoring methane concentration

Country Status (6)

Country	Link
DE (1)	DE2911153A1 (en)
FR (1)	FR2420646A1 (en)
GB (1)	GB2017313B (en)
PL (1)	PL122880B1 (en)
SU (1)	SU912054A3 (en)
YU (1)	YU59279A (en)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
DE102006041570B4 (en) *	2006-09-05	2015-11-26	Marco Systemanalyse Und Entwicklung Gmbh	Method for controlling a mining device, longwall construction for carrying out the method and control for such a longwall construction
CN101922309B (en) *	2009-06-09	2012-11-14	公安部天津消防研究所	Method for preventing mine gas from exploding and implementation device thereof
CN103591041B (en) *	2013-11-30	2016-06-08	南阳防爆集团股份有限公司	Intelligent coal mine local ventilation system

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
FR2350461A1 (en) *	1976-05-03	1977-12-02	Midi Houilleres Provence Centr	Fire-damp remote measuring equipment - has detectors connected to circuit comparing representative frequencies successively with threshold value

1978
- 1978-03-21 PL PL20550178A patent/PL122880B1/en unknown
1979
- 1979-03-12 YU YU59279A patent/YU59279A/en unknown
- 1979-03-20 FR FR7906945A patent/FR2420646A1/en not_active Withdrawn
- 1979-03-20 SU SU792741291A patent/SU912054A3/en active
- 1979-03-21 GB GB7909949A patent/GB2017313B/en not_active Expired
- 1979-03-21 DE DE19792911153 patent/DE2911153A1/en not_active Ceased

Also Published As

Publication number	Publication date
FR2420646A1 (en)	1979-10-19
GB2017313A (en)	1979-10-03
PL122880B1 (en)	1982-08-31
DE2911153A1 (en)	1979-10-11
SU912054A3 (en)	1982-03-07
YU59279A (en)	1982-10-31

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Legal Events

Date	Code	Title	Description
1983-11-09	PCNP	Patent ceased through non-payment of renewal fee