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GB2013393B - Smoke detectors - Google Patents

Smoke detectors

Info

Publication number
GB2013393B
GB2013393B GB7843520A GB7843520A GB2013393B GB 2013393 B GB2013393 B GB 2013393B GB 7843520 A GB7843520 A GB 7843520A GB 7843520 A GB7843520 A GB 7843520A GB 2013393 B GB2013393 B GB 2013393B
Authority
GB
United Kingdom
Prior art keywords
smoke detectors
detectors
smoke
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
Application number
GB7843520A
Other versions
GB2013393A (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.)
GE Healthcare Ltd
Original Assignee
Radiochemical Centre Ltd
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 Radiochemical Centre Ltd filed Critical Radiochemical Centre Ltd
Priority to GB7843520A priority Critical patent/GB2013393B/en
Publication of GB2013393A publication Critical patent/GB2013393A/en
Application granted granted Critical
Publication of GB2013393B publication Critical patent/GB2013393B/en
Expired 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
    • G08B17/11—Actuation by presence of smoke or gases, e.g. automatic alarm devices for analysing flowing fluid materials by the use of optical means using an ionisation chamber for detecting smoke or gas
    • G08B17/113—Constructional details

Landscapes

  • Chemical & Material Sciences (AREA)
  • Analytical Chemistry (AREA)
  • Business, Economics & Management (AREA)
  • Emergency Management (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Fire-Detection Mechanisms (AREA)
GB7843520A 1977-11-18 1978-11-07 Smoke detectors Expired GB2013393B (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB7843520A GB2013393B (en) 1977-11-18 1978-11-07 Smoke detectors

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
GB4815477 1977-11-18
GB7843520A GB2013393B (en) 1977-11-18 1978-11-07 Smoke detectors

Publications (2)

Publication Number Publication Date
GB2013393A GB2013393A (en) 1979-08-08
GB2013393B true GB2013393B (en) 1982-03-03

Family

ID=26266219

Family Applications (1)

Application Number Title Priority Date Filing Date
GB7843520A Expired GB2013393B (en) 1977-11-18 1978-11-07 Smoke detectors

Country Status (1)

Country Link
GB (1) GB2013393B (en)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS58186463U (en) * 1982-06-07 1983-12-10 能美防災株式会社 ionization smoke detector

Also Published As

Publication number Publication date
GB2013393A (en) 1979-08-08

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Legal Events

Date Code Title Description
PE20 Patent expired after termination of 20 years

Effective date: 19981106