DE69024543D1 - Rauchalarmsystem - Google Patents

Rauchalarmsystem

Info

Publication number
DE69024543D1
DE69024543D1 DE69024543T DE69024543T DE69024543D1 DE 69024543 D1 DE69024543 D1 DE 69024543D1 DE 69024543 T DE69024543 T DE 69024543T DE 69024543 T DE69024543 T DE 69024543T DE 69024543 D1 DE69024543 D1 DE 69024543D1
Authority
DE
Germany
Prior art keywords
signals
alarm
smoke
alarm system
smoke alarm
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
DE69024543T
Other languages
English (en)
Other versions
DE69024543T2 (de
Inventor
Colin Charles Oliver
Robert Edward Allan
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.)
Central Research Laboratories Ltd
Original Assignee
Thorn EMI 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 Thorn EMI PLC filed Critical Thorn EMI PLC
Publication of DE69024543D1 publication Critical patent/DE69024543D1/de
Application granted granted Critical
Publication of DE69024543T2 publication Critical patent/DE69024543T2/de
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G08—SIGNALLING
    • G08B—SIGNALLING OR CALLING SYSTEMS; ORDER TELEGRAPHS; ALARM SYSTEMS
    • G08B17/00—Fire alarms; Alarms responsive to explosion
    • G08B17/10—Actuation by presence of smoke or gases, e.g. automatic alarm devices for analysing flowing fluid materials by the use of optical means
    • G—PHYSICS
    • G08—SIGNALLING
    • G08B—SIGNALLING OR CALLING SYSTEMS; ORDER TELEGRAPHS; ALARM SYSTEMS
    • G08B1/00—Systems for signalling characterised solely by the form of transmission of the signal
    • G08B1/08—Systems for signalling characterised solely by the form of transmission of the signal using electric transmission ; transformation of alarm signals to electrical signals from a different medium, e.g. transmission of an electric alarm signal upon detection of an audible alarm signal

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Chemical & Material Sciences (AREA)
  • Analytical Chemistry (AREA)
  • Business, Economics & Management (AREA)
  • Emergency Management (AREA)
  • Fire-Detection Mechanisms (AREA)
  • Fire Alarms (AREA)
  • Alarm Systems (AREA)
DE69024543T 1989-06-13 1990-06-13 Rauchalarmsystem Expired - Fee Related DE69024543T2 (de)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB898913552A GB8913552D0 (en) 1989-06-13 1989-06-13 Smoke alarm systems

Publications (2)

Publication Number Publication Date
DE69024543D1 true DE69024543D1 (de) 1996-02-15
DE69024543T2 DE69024543T2 (de) 1996-08-22

Family

ID=10658349

Family Applications (1)

Application Number Title Priority Date Filing Date
DE69024543T Expired - Fee Related DE69024543T2 (de) 1989-06-13 1990-06-13 Rauchalarmsystem

Country Status (5)

Country Link
EP (1) EP0403245B1 (de)
AT (1) ATE132643T1 (de)
DE (1) DE69024543T2 (de)
ES (1) ES2081348T3 (de)
GB (1) GB8913552D0 (de)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB9414367D0 (en) * 1994-07-14 1994-09-28 Marvelly John D Emergency control apparatus
GB0010375D0 (en) * 2000-04-29 2000-06-14 Mclaughlin Brian F Smoke alarm
DE10203698A1 (de) * 2002-01-31 2003-08-07 Abb Patent Gmbh Alarmmeldesystem
EP2763944B1 (de) * 2011-09-09 2015-12-16 Akzo Nobel Chemicals International B.V. Verfahren zur chlorierung einer hydroxylierten organischen verbindung

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3696382A (en) * 1970-11-06 1972-10-03 Functional Devices Inc Alarm system
US4365238A (en) * 1979-06-08 1982-12-21 Adam Kollin Visual signalling apparatus
EP0102229B1 (de) * 1982-08-27 1987-03-18 Monicell Limited Alarmsystem
US4520503A (en) * 1983-10-14 1985-05-28 University Of New Mexico Tone discrimination circuit

Also Published As

Publication number Publication date
ES2081348T3 (es) 1996-03-01
GB8913552D0 (en) 1989-08-02
EP0403245B1 (de) 1996-01-03
DE69024543T2 (de) 1996-08-22
EP0403245A3 (de) 1991-09-25
EP0403245A2 (de) 1990-12-19
ATE132643T1 (de) 1996-01-15

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Legal Events

Date Code Title Description
8364 No opposition during term of opposition
8327 Change in the person/name/address of the patent owner

Owner name: CENTRAL RESEARCH LABORATORIES LTD., HAYES, MIDDLES

8339 Ceased/non-payment of the annual fee