GB1527011A - Ionization smoke sensors - Google Patents

Ionization smoke sensors

Info

Publication number
GB1527011A
GB1527011A GB5196/76A GB519676A GB1527011A GB 1527011 A GB1527011 A GB 1527011A GB 5196/76 A GB5196/76 A GB 5196/76A GB 519676 A GB519676 A GB 519676A GB 1527011 A GB1527011 A GB 1527011A
Authority
GB
United Kingdom
Prior art keywords
circuit
surrounded
case
chamber
ionization
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
GB5196/76A
Other languages
English (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.)
Hochiki Corp
Original Assignee
Hochiki 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 Hochiki Corp filed Critical Hochiki Corp
Publication of GB1527011A publication Critical patent/GB1527011A/en
Expired legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G08—SIGNALLING
    • G08B—SIGNALLING SYSTEMS, e.g. PERSONAL 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)
  • Other Investigation Or Analysis Of Materials By Electrical Means (AREA)
GB5196/76A 1975-02-10 1976-02-10 Ionization smoke sensors Expired GB1527011A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP1975017773U JPS5552558Y2 (https=) 1975-02-10 1975-02-10

Publications (1)

Publication Number Publication Date
GB1527011A true GB1527011A (en) 1978-10-04

Family

ID=11953021

Family Applications (1)

Application Number Title Priority Date Filing Date
GB5196/76A Expired GB1527011A (en) 1975-02-10 1976-02-10 Ionization smoke sensors

Country Status (6)

Country Link
US (1) US4044262A (https=)
JP (1) JPS5552558Y2 (https=)
CH (1) CH597658A5 (https=)
DE (1) DE2604872C3 (https=)
FR (1) FR2299878A1 (https=)
GB (1) GB1527011A (https=)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2117560A (en) * 1982-03-09 1983-10-12 Emile Hugon Capacitive smoke detector

Families Citing this family (15)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4171486A (en) * 1977-08-31 1979-10-16 Emhart Industries, Inc. Ionization smoke detector with controlled sensitivity
US4185197A (en) * 1978-01-13 1980-01-22 General Electric Company Arrangement for inhibiting the effect of extraneous electric fields on an improved ionization smoke detector
FR2438841A1 (fr) * 1978-10-13 1980-05-09 Commissariat Energie Atomique Capteur ionique pour detecteur d'incendie
US4286159A (en) * 1979-04-10 1981-08-25 Hochiki Corporation Detector coupling mechanism
US4396840A (en) * 1980-10-01 1983-08-02 Matsushita Electric Works, Ltd. Ionization type smoke sensing device
US4488044A (en) * 1981-11-20 1984-12-11 Pittway Corporation Ionization chamber for smoke detector and the like
EP0092859A3 (fr) * 1982-04-27 1985-11-21 Institut National des Radioélements Nationaal Instituut voor Radio-Elementen en abrégé :"I.R.E." Détecteur ionique
DE3341781A1 (de) * 1983-11-18 1985-05-30 Siemens AG, 1000 Berlin und 8000 München Automatischer brandmelder und verfahren zur fertigung automatischer brandmelder
US4761557A (en) * 1985-08-24 1988-08-02 Kohmi Bosai Kogyo Co., Ltd. Ionization-type smoke detector
DE4028167A1 (de) * 1990-09-05 1992-03-12 Esser Sicherheitstechnik Ionisationsbrandmelder
US5485144A (en) * 1993-05-07 1996-01-16 Pittway Corporation Compensated ionization sensor
DE4324439C2 (de) * 1993-07-21 1997-03-20 Preussag Ag Minimax Rauchmelder
DE102008032145B4 (de) * 2008-07-08 2012-12-06 Techem Energy Services Gmbh Warnmelder mit einer zur Umgebung offenen Detektionskammer
DE102014019773B4 (de) 2014-12-17 2023-12-07 Elmos Semiconductor Se Vorrichtung und Verfahren zur Unterscheidung von festen Objekten, Kochdunst und Rauch mittels des Displays eines Mobiltelefons
DE102014019172B4 (de) 2014-12-17 2023-12-07 Elmos Semiconductor Se Vorrichtung und Verfahren zur Unterscheidung von festen Objekten, Kochdunst und Rauch mit einem kompensierenden optischen Messsystem

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CH483682A (de) * 1969-03-28 1969-12-31 Cerberus Ag Automatischer Feuermelder mit mindestens einer Messkammer
CH486082A (de) * 1969-05-19 1970-02-15 Cerberus Ag Ionisationsfeuermelder
US3824422A (en) * 1972-06-27 1974-07-16 Anglo Amer Corp South Africa Smoke detectors

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2117560A (en) * 1982-03-09 1983-10-12 Emile Hugon Capacitive smoke detector

Also Published As

Publication number Publication date
FR2299878B1 (https=) 1980-06-06
FR2299878A1 (fr) 1976-09-03
CH597658A5 (https=) 1978-04-14
US4044262A (en) 1977-08-23
DE2604872A1 (de) 1976-08-19
DE2604872B2 (de) 1981-04-30
JPS51100581U (https=) 1976-08-12
JPS5552558Y2 (https=) 1980-12-05
DE2604872C3 (de) 1982-01-07

Similar Documents

Publication Publication Date Title
GB1527011A (en) Ionization smoke sensors
GB1430891A (en) Ionization fire sensors
GB1257155A (https=)
GB1445519A (en) Transmission ionization chamber
GB1483781A (en) Ionization smoke detector and alarm system
US2994768A (en) Method and system for the electric determination of aerosols in a gas
US2874305A (en) Radiation integrator
GB1528654A (en) Aerosol detection devices
GB1250296A (https=)
US3560737A (en) Combustion products detector using a radioactive source and detector
GB1488555A (en) Device capable of monitoring the centring intensity and uniformity of an ionizing radiation beam
US4044263A (en) Ionization dual-zone static detector having single radioactive source
US3935492A (en) Ionization smoke detector
IE45520L (en) Smoke detector
US3078450A (en) Pressure compensated ionization chamber fire detector system
US4082952A (en) Ion detector
JPS5694497A (en) Ionization type smoke sensor
US3582646A (en) Ionization fire detection device
US4153840A (en) Double chamber ionization smoke detector
GB1260984A (en) Ionization smoke detector
US2978581A (en) Radiant energy detection device
GB1458098A (en) Fire detectors
ES468622A1 (es) Dispositivo de deteccion de humos de incendio
US4185197A (en) Arrangement for inhibiting the effect of extraneous electric fields on an improved ionization smoke detector
GB917044A (en) Area radiation monitor

Legal Events

Date Code Title Description
PS Patent sealed [section 19, patents act 1949]
PCNP Patent ceased through non-payment of renewal fee