EP0405473A3 - Low profile detector with multi-sided source - Google Patents

Low profile detector with multi-sided source Download PDF

Info

Publication number
EP0405473A3
EP0405473A3 EP19900112170 EP90112170A EP0405473A3 EP 0405473 A3 EP0405473 A3 EP 0405473A3 EP 19900112170 EP19900112170 EP 19900112170 EP 90112170 A EP90112170 A EP 90112170A EP 0405473 A3 EP0405473 A3 EP 0405473A3
Authority
EP
European Patent Office
Prior art keywords
low profile
profile detector
sided source
sided
source
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.)
Withdrawn
Application number
EP19900112170
Other versions
EP0405473A2 (en
Inventor
Edward J. Thorp
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.)
Pittway Corp
Original Assignee
Pittway Corp
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 Pittway Corp filed Critical Pittway Corp
Publication of EP0405473A2 publication Critical patent/EP0405473A2/en
Publication of EP0405473A3 publication Critical patent/EP0405473A3/en
Withdrawn legal-status Critical Current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
    • 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

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)
  • Other Investigation Or Analysis Of Materials By Electrical Means (AREA)
EP19900112170 1989-06-28 1990-06-26 Low profile detector with multi-sided source Withdrawn EP0405473A3 (en)

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
US37315689A 1989-06-28 1989-06-28
US53507190A 1990-06-12 1990-06-12
US535071 1990-06-12
US373156 1995-01-17

Publications (2)

Publication Number Publication Date
EP0405473A2 EP0405473A2 (en) 1991-01-02
EP0405473A3 true EP0405473A3 (en) 1991-05-02

Family

ID=27006071

Family Applications (1)

Application Number Title Priority Date Filing Date
EP19900112170 Withdrawn EP0405473A3 (en) 1989-06-28 1990-06-26 Low profile detector with multi-sided source

Country Status (1)

Country Link
EP (1) EP0405473A3 (en)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN111402540B (en) * 2020-02-25 2021-08-24 王勇强 Air-breathing smoke-sensing fire detection device, method and equipment

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2224819A1 (en) * 1973-04-03 1974-10-31 Cerberus Ag
US4327289A (en) * 1978-12-26 1982-04-27 Solomon Elias E Ionization detector calibration
EP0121048A1 (en) * 1983-03-04 1984-10-10 Cerberus Ag Circuit arrangement for the interference level control of detectors, arranged in a danger detection device

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2224819A1 (en) * 1973-04-03 1974-10-31 Cerberus Ag
US4327289A (en) * 1978-12-26 1982-04-27 Solomon Elias E Ionization detector calibration
EP0121048A1 (en) * 1983-03-04 1984-10-10 Cerberus Ag Circuit arrangement for the interference level control of detectors, arranged in a danger detection device

Also Published As

Publication number Publication date
EP0405473A2 (en) 1991-01-02

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