GB8913552D0 - Smoke alarm systems - Google Patents

Smoke alarm systems

Info

Publication number
GB8913552D0
GB8913552D0 GB898913552A GB8913552A GB8913552D0 GB 8913552 D0 GB8913552 D0 GB 8913552D0 GB 898913552 A GB898913552 A GB 898913552A GB 8913552 A GB8913552 A GB 8913552A GB 8913552 D0 GB8913552 D0 GB 8913552D0
Authority
GB
United Kingdom
Prior art keywords
signals
alarm
smoke
smoke alarm
alarm systems
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.)
Pending
Application number
GB898913552A
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.)
EMI Group 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
Priority to GB898913552A priority Critical patent/GB8913552D0/en
Publication of GB8913552D0 publication Critical patent/GB8913552D0/en
Priority to EP90306433A priority patent/EP0403245B1/en
Priority to DE69024543T priority patent/DE69024543T2/en
Priority to ES90306433T priority patent/ES2081348T3/en
Priority to AT90306433T priority patent/ATE132643T1/en
Pending 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)

Abstract

A smoke alarm system utilises a conventional smoke detector (1) for producing audible alarm signals when the presence of smoke is detected. These signals are received by a mainsborne communication means (5) which may then produce further alarm signals or transmit electrical signals over a mainsborne communication system to activate remote alarm units.
GB898913552A 1989-06-13 1989-06-13 Smoke alarm systems Pending GB8913552D0 (en)

Priority Applications (5)

Application Number Priority Date Filing Date Title
GB898913552A GB8913552D0 (en) 1989-06-13 1989-06-13 Smoke alarm systems
EP90306433A EP0403245B1 (en) 1989-06-13 1990-06-13 Smoke alarm systems
DE69024543T DE69024543T2 (en) 1989-06-13 1990-06-13 Smoke alarm system
ES90306433T ES2081348T3 (en) 1989-06-13 1990-06-13 ALARM SYSTEM FOR SMOKE DETECTION.
AT90306433T ATE132643T1 (en) 1989-06-13 1990-06-13 SMOKE ALARM SYSTEM

Applications Claiming Priority (1)

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

Publications (1)

Publication Number Publication Date
GB8913552D0 true GB8913552D0 (en) 1989-08-02

Family

ID=10658349

Family Applications (1)

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

Country Status (5)

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

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 (en) * 2002-01-31 2003-08-07 Abb Patent Gmbh Alarm warning system, converts received audible warning from e.g. smoke detector into EIB-conformant input signal to feed building control system
EP2763944B1 (en) * 2011-09-09 2015-12-16 Akzo Nobel Chemicals International B.V. Process for the chlorination of a hydroxylated organic compound

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
DE3370387D1 (en) * 1982-08-27 1987-04-23 Monicell Ltd Alarm system
US4520503A (en) * 1983-10-14 1985-05-28 University Of New Mexico Tone discrimination circuit

Also Published As

Publication number Publication date
DE69024543T2 (en) 1996-08-22
DE69024543D1 (en) 1996-02-15
ATE132643T1 (en) 1996-01-15
EP0403245A2 (en) 1990-12-19
EP0403245B1 (en) 1996-01-03
ES2081348T3 (en) 1996-03-01
EP0403245A3 (en) 1991-09-25

Similar Documents

Publication Publication Date Title
GB2051444B (en) Installation for transmitting alarm signals
AU4897090A (en) Improved automatic/remote rf instrument monitoring system
FR2661023B1 (en) SYSTEM FOR REMOTE MONITORING OF INOCCUTED PREMISES.
EP0715469A3 (en) Video signal transmitting system
GB8823230D0 (en) Smoke & fire detection system communication
CA2013734A1 (en) Multi-mode electronic article surveillance system
AU1613388A (en) Security alarm system
AU7206387A (en) Single-wire loop alarm system
AU1013483A (en) A locality supervision system
GB8913552D0 (en) Smoke alarm systems
GB2077188B (en) Systems producing alarm or indication signals teaching operators
AU1693988A (en) Individual identification
GB2223869B (en) Apparatus for the transmission of alarm signals
AU6594080A (en) Intruder alarm systems
JPS57206995A (en) Detection signal transmitter for total indoor security system
GB8903105D0 (en) Intruder alarm system disarmed by radio signal
IT1221840B (en) REMOTE CONTROLLED PARTIALIZABLE BURGLAR ALARM SYSTEM
DE3789223D1 (en) SIGNAL TRANSMITTER ARRANGEMENT OF AN ACCIDENT PREVENTION SYSTEM.
AU1057988A (en) System for transmitting and receiving remote-control signals
FR2676556B1 (en) PREDICTIVE PROCESS MONITORING SYSTEM.
ES8303774A1 (en) System and installation of general security detection by radio. (Machine-translation by Google Translate, not legally binding)
AU6336294A (en) Video signal transmitting system
FR2377675A1 (en) Frequency multiplexed alarm signal system - allows large number of alarm signals to be transmitted over common cable (NL 19.7.78)
IT9003575A0 (en) EQUIPMENT FOR THE REMOTE CONTROL OF PERIPHERAL SYSTEMS SUCH AS LAMP GROUPS OR BURGLAR ALARMS.
FR2345771A1 (en) Remote detector alarm signalling system - has central control supplying energy to storage circuits in detectors for re-transmission when alarm is detected