EP0225173A3 - Particle or gaseous detector - Google Patents

Particle or gaseous detector

Info

Publication number
EP0225173A3
EP0225173A3 EP86309240A EP86309240A EP0225173A3 EP 0225173 A3 EP0225173 A3 EP 0225173A3 EP 86309240 A EP86309240 A EP 86309240A EP 86309240 A EP86309240 A EP 86309240A EP 0225173 A3 EP0225173 A3 EP 0225173A3
Authority
EP
European Patent Office
Prior art keywords
particle
gaseous detector
gaseous
detector
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.)
Granted
Application number
EP86309240A
Other versions
EP0225173B1 (en
EP0225173A2 (en
Inventor
Stephen Henry Ellwood
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.)
Novar Systems Ltd
Original Assignee
Gent 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 Gent Ltd filed Critical Gent Ltd
Publication of EP0225173A2 publication Critical patent/EP0225173A2/en
Publication of EP0225173A3 publication Critical patent/EP0225173A3/en
Application granted granted Critical
Publication of EP0225173B1 publication Critical patent/EP0225173B1/en
Anticipated expiration legal-status Critical
Expired - Lifetime 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)
EP19860309240 1985-11-29 1986-11-26 Particle or gaseous detector Expired - Lifetime EP0225173B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
GB8529436 1985-11-29
GB858529436A GB8529436D0 (en) 1985-11-29 1985-11-29 Fire detector

Publications (3)

Publication Number Publication Date
EP0225173A2 EP0225173A2 (en) 1987-06-10
EP0225173A3 true EP0225173A3 (en) 1988-08-03
EP0225173B1 EP0225173B1 (en) 1995-05-10

Family

ID=10588986

Family Applications (1)

Application Number Title Priority Date Filing Date
EP19860309240 Expired - Lifetime EP0225173B1 (en) 1985-11-29 1986-11-26 Particle or gaseous detector

Country Status (3)

Country Link
EP (1) EP0225173B1 (en)
DE (1) DE3650321T2 (en)
GB (1) GB8529436D0 (en)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
USD891277S1 (en) 2019-01-04 2020-07-28 Ademco Inc. Ceiling mount sensor

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3460124A (en) * 1966-06-06 1969-08-05 Interstate Eng Corp Smoke detector
US3594751A (en) * 1968-02-29 1971-07-20 Brk Electronics Detection of products of combustion
US3710110A (en) * 1969-05-19 1973-01-09 Cerberus Ag Ionization fire alarm device with shielding for its electrical circuitry
US4121110A (en) * 1976-11-04 1978-10-17 Solomon Elias E Optically biased smoke detector

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3460124A (en) * 1966-06-06 1969-08-05 Interstate Eng Corp Smoke detector
US3594751A (en) * 1968-02-29 1971-07-20 Brk Electronics Detection of products of combustion
US3710110A (en) * 1969-05-19 1973-01-09 Cerberus Ag Ionization fire alarm device with shielding for its electrical circuitry
US4121110A (en) * 1976-11-04 1978-10-17 Solomon Elias E Optically biased smoke detector

Also Published As

Publication number Publication date
EP0225173B1 (en) 1995-05-10
DE3650321D1 (en) 1995-06-14
EP0225173A2 (en) 1987-06-10
GB8529436D0 (en) 1986-01-08
DE3650321T2 (en) 1995-11-09

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