GB2355098B - Intrinsically safe roof hazard alert module - Google Patents

Intrinsically safe roof hazard alert module

Info

Publication number
GB2355098B
GB2355098B GB0027883A GB0027883A GB2355098B GB 2355098 B GB2355098 B GB 2355098B GB 0027883 A GB0027883 A GB 0027883A GB 0027883 A GB0027883 A GB 0027883A GB 2355098 B GB2355098 B GB 2355098B
Authority
GB
United Kingdom
Prior art keywords
intrinsically safe
alert module
hazard alert
safe roof
roof hazard
Prior art date
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 - Fee Related
Application number
GB0027883A
Other versions
GB0027883D0 (en
GB2355098A (en
Inventor
William D Mayercheck
Albert L Brautigam
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.)
US Department of Health and Human Services
Original Assignee
US Department of Health and Human Services
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.)
Filing date
Publication date
Application filed by US Department of Health and Human Services filed Critical US Department of Health and Human Services
Publication of GB0027883D0 publication Critical patent/GB0027883D0/en
Publication of GB2355098A publication Critical patent/GB2355098A/en
Application granted granted Critical
Publication of GB2355098B publication Critical patent/GB2355098B/en
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
    • G09F—DISPLAYING; ADVERTISING; SIGNS; LABELS OR NAME-PLATES; SEALS
    • G09F9/00—Indicating arrangements for variable information in which the information is built-up on a support by selection or combination of individual elements
    • G09F9/30—Indicating arrangements for variable information in which the information is built-up on a support by selection or combination of individual elements in which the desired character or characters are formed by combining individual elements
    • G09F9/33—Indicating arrangements for variable information in which the information is built-up on a support by selection or combination of individual elements in which the desired character or characters are formed by combining individual elements being semiconductor devices, e.g. diodes
    • E—FIXED CONSTRUCTIONS
    • E21—EARTH OR ROCK DRILLING; MINING
    • E21F—SAFETY DEVICES, TRANSPORT, FILLING-UP, RESCUE, VENTILATION, OR DRAINING IN OR OF MINES OR TUNNELS
    • E21F17/00—Methods or devices for use in mines or tunnels, not covered elsewhere
    • E21F17/18—Special adaptations of signalling or alarm devices
    • G—PHYSICS
    • G08—SIGNALLING
    • G08B—SIGNALLING OR CALLING SYSTEMS; ORDER TELEGRAPHS; ALARM SYSTEMS
    • G08B5/00—Visible signalling systems, e.g. personal calling systems, remote indication of seats occupied
    • G08B5/22—Visible signalling systems, e.g. personal calling systems, remote indication of seats occupied using electric transmission; using electromagnetic transmission
    • G08B5/36—Visible signalling systems, e.g. personal calling systems, remote indication of seats occupied using electric transmission; using electromagnetic transmission using visible light sources
    • G08B5/38—Visible signalling systems, e.g. personal calling systems, remote indication of seats occupied using electric transmission; using electromagnetic transmission using visible light sources using flashing light
    • G—PHYSICS
    • G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
    • G09F—DISPLAYING; ADVERTISING; SIGNS; LABELS OR NAME-PLATES; SEALS
    • G09F7/00—Signs, name or number plates, letters, numerals, or symbols; Panels or boards
    • G09F7/18—Means for attaching signs, plates, panels, or boards to a supporting structure
    • G09F2007/1856—Means for attaching signs, plates, panels, or boards to a supporting structure characterised by the supporting structure
    • G09F2007/186—Means for attaching signs, plates, panels, or boards to a supporting structure characterised by the supporting structure suspended, e.g. secured to the ceiling
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02H—EMERGENCY PROTECTIVE CIRCUIT ARRANGEMENTS
    • H02H3/00—Emergency protective circuit arrangements for automatic disconnection directly responsive to an undesired change from normal electric working condition with or without subsequent reconnection ; integrated protection
    • H02H3/02—Details
    • H02H3/04—Details with warning or supervision in addition to disconnection, e.g. for indicating that protective apparatus has functioned
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02H—EMERGENCY PROTECTIVE CIRCUIT ARRANGEMENTS
    • H02H9/00—Emergency protective circuit arrangements for limiting excess current or voltage without disconnection
    • H02H9/008—Intrinsically safe circuits

Landscapes

  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Mining & Mineral Resources (AREA)
  • General Physics & Mathematics (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • General Life Sciences & Earth Sciences (AREA)
  • Geochemistry & Mineralogy (AREA)
  • Geology (AREA)
  • Theoretical Computer Science (AREA)
  • Electromagnetism (AREA)
  • Emergency Alarm Devices (AREA)
GB0027883A 1998-04-30 1999-04-20 Intrinsically safe roof hazard alert module Expired - Fee Related GB2355098B (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US8367798P 1998-04-30 1998-04-30
PCT/US1999/008613 WO1999056258A1 (en) 1998-04-30 1999-04-20 Intrinsically-safe roof hazard alert module

Publications (3)

Publication Number Publication Date
GB0027883D0 GB0027883D0 (en) 2000-12-27
GB2355098A GB2355098A (en) 2001-04-11
GB2355098B true GB2355098B (en) 2003-07-02

Family

ID=22179974

Family Applications (1)

Application Number Title Priority Date Filing Date
GB0027883A Expired - Fee Related GB2355098B (en) 1998-04-30 1999-04-20 Intrinsically safe roof hazard alert module

Country Status (4)

Country Link
AU (1) AU747632B2 (en)
CA (1) CA2329313A1 (en)
GB (1) GB2355098B (en)
WO (1) WO1999056258A1 (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN107656269A (en) * 2017-09-14 2018-02-02 铜陵市力凡自动化设备有限责任公司 A kind of adjoining rock stability situation detection method

Families Citing this family (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102080571B (en) * 2011-01-25 2012-11-21 淮南市新光源特种照明器材有限公司 Flameproof and intrinsically safe voice acousto-optic signal box for coal mine
CN103244184B (en) * 2013-05-07 2016-01-13 西南石油大学 A kind of down-hole combined mining working ore deposit pressure real-time monitoring system
WO2015168351A1 (en) 2014-05-02 2015-11-05 Swagelok Company Fluid sample system and method
GB201502321D0 (en) * 2015-02-12 2015-04-01 Exis Energy Ltd Apparatus
CN106640194B (en) * 2016-09-27 2019-02-22 西安科技大学 A kind of compound coal rock gas dynamic disaster method for early warning
CN109545077A (en) * 2019-01-04 2019-03-29 国网山西省电力公司检修分公司 A kind of substation's maintenance warning cover plate
CN110617109A (en) * 2019-08-20 2019-12-27 徐州天能矿山机械有限责任公司 Mine alarm

Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1429211A (en) * 1922-04-17 1922-09-12 Robert W Lightburn Danger signal for mines
FR1522038A (en) * 1967-05-08 1968-04-19 Portable warning device for mining, intended in particular for warning shots
US4103298A (en) * 1976-07-20 1978-07-25 Browne-Davies Electronic Corporation Alarm device
BE876198A (en) * 1978-05-12 1979-11-12 Siemens Ag SYSTEM PROHIBITING ENTRY INTO HAZARDOUS ZONES OF UNDERGROUND OPERATING FACILITIES
US4426642A (en) * 1981-10-07 1984-01-17 John Wade Bell Mine alert device
US4604706A (en) * 1983-06-27 1986-08-05 Integrated Sciences, Inc. Apparatus for failure prediction of earth structures
ES2087821A2 (en) * 1994-02-23 1996-07-16 Para La Investigacion Y Desarr Intrinsic safety visual indicator lamp for explosive atmospheres, based on light-emitting diodes [LEDs].
US5585783A (en) * 1994-06-28 1996-12-17 Hall; Roger E. Marker light utilizing light emitting diodes disposed on a flexible circuit board

Patent Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1429211A (en) * 1922-04-17 1922-09-12 Robert W Lightburn Danger signal for mines
FR1522038A (en) * 1967-05-08 1968-04-19 Portable warning device for mining, intended in particular for warning shots
US4103298A (en) * 1976-07-20 1978-07-25 Browne-Davies Electronic Corporation Alarm device
BE876198A (en) * 1978-05-12 1979-11-12 Siemens Ag SYSTEM PROHIBITING ENTRY INTO HAZARDOUS ZONES OF UNDERGROUND OPERATING FACILITIES
US4426642A (en) * 1981-10-07 1984-01-17 John Wade Bell Mine alert device
US4604706A (en) * 1983-06-27 1986-08-05 Integrated Sciences, Inc. Apparatus for failure prediction of earth structures
ES2087821A2 (en) * 1994-02-23 1996-07-16 Para La Investigacion Y Desarr Intrinsic safety visual indicator lamp for explosive atmospheres, based on light-emitting diodes [LEDs].
US5585783A (en) * 1994-06-28 1996-12-17 Hall; Roger E. Marker light utilizing light emitting diodes disposed on a flexible circuit board

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN107656269A (en) * 2017-09-14 2018-02-02 铜陵市力凡自动化设备有限责任公司 A kind of adjoining rock stability situation detection method

Also Published As

Publication number Publication date
WO1999056258A1 (en) 1999-11-04
GB0027883D0 (en) 2000-12-27
AU747632B2 (en) 2002-05-16
AU3654699A (en) 1999-11-16
CA2329313A1 (en) 1999-11-04
GB2355098A (en) 2001-04-11

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Legal Events

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

Effective date: 20070420