DK455582A - Elektronisk varselsanlaeg - Google Patents

Elektronisk varselsanlaeg Download PDF

Info

Publication number
DK455582A
DK455582A DK455582A DK455582A DK455582A DK 455582 A DK455582 A DK 455582A DK 455582 A DK455582 A DK 455582A DK 455582 A DK455582 A DK 455582A DK 455582 A DK455582 A DK 455582A
Authority
DK
Denmark
Prior art keywords
electronic alarms
alarms
electronic
Prior art date
Application number
DK455582A
Other languages
English (en)
Inventor
Anthony Roland Coppen
Roger Force
Original Assignee
Blue Circle Ind Plc
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 Blue Circle Ind Plc filed Critical Blue Circle Ind Plc
Publication of DK455582A publication Critical patent/DK455582A/da

Links

Classifications

    • G—PHYSICS
    • G08—SIGNALLING
    • G08B—SIGNALLING SYSTEMS, e.g. PERSONAL CALLING SYSTEMS; ORDER TELEGRAPHS; ALARM SYSTEMS
    • G08B3/00—Audible signalling systems, e.g. audible personal calling systems
    • G08B3/10—Audible signalling systems, e.g. audible personal calling systems using electric transmission; using electromagnetic transmission
    • G—PHYSICS
    • G08—SIGNALLING
    • G08B—SIGNALLING SYSTEMS, e.g. PERSONAL CALLING SYSTEMS; ORDER TELEGRAPHS; ALARM SYSTEMS
    • G08B27/00—Alarm systems in which the alarm condition is signalled from a central station to a plurality of substations

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Business, Economics & Management (AREA)
  • Emergency Management (AREA)
  • Electromagnetism (AREA)
  • Emergency Alarm Devices (AREA)
  • Alarm Systems (AREA)
  • Burglar Alarm Systems (AREA)
DK455582A 1981-02-18 1982-10-14 Elektronisk varselsanlaeg DK455582A (da)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
GB8105012 1981-02-18
PCT/GB1982/000042 WO1982002971A1 (en) 1981-02-18 1982-02-18 Electronic warning system

Publications (1)

Publication Number Publication Date
DK455582A true DK455582A (da) 1982-10-14

Family

ID=10519771

Family Applications (1)

Application Number Title Priority Date Filing Date
DK455582A DK455582A (da) 1981-02-18 1982-10-14 Elektronisk varselsanlaeg

Country Status (6)

Country Link
EP (1) EP0072825A1 (da)
JP (1) JPS58500091A (da)
AU (1) AU8140182A (da)
DK (1) DK455582A (da)
GB (1) GB2107908A (da)
WO (1) WO1982002971A1 (da)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6362097A (ja) * 1986-09-03 1988-03-18 株式会社日立製作所 プラントの音声自動通報装置
AUPM282493A0 (en) * 1993-12-06 1994-01-06 Robert Bosch (Australia) Proprietary Ltd. A siren unit
US5887067A (en) * 1996-05-10 1999-03-23 General Signal Corporation Audio communication system for a life safety network

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3579233A (en) * 1969-01-27 1971-05-18 Bullard Co Ambient noise frequency responsive audible vehicle alarm
US3683346A (en) * 1971-03-01 1972-08-08 Charles A Horton Variable-tone electronic alarm system
US3739278A (en) * 1971-06-29 1973-06-12 Gautney & Jones Receiver demuting arrangement employing sequential binary code
FR2413730A1 (fr) * 1977-12-28 1979-07-27 Accumulateurs Fixes Dispositif de commande d'un avertisseur electronique

Also Published As

Publication number Publication date
GB2107908A (en) 1983-05-05
JPS58500091A (ja) 1983-01-13
EP0072825A1 (en) 1983-03-02
AU8140182A (en) 1982-09-14
WO1982002971A1 (en) 1982-09-02

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Legal Events

Date Code Title Description
ATS Application withdrawn