GB1295498A - - Google Patents

Info

Publication number
GB1295498A
GB1295498A GB1295498DA GB1295498A GB 1295498 A GB1295498 A GB 1295498A GB 1295498D A GB1295498D A GB 1295498DA GB 1295498 A GB1295498 A GB 1295498A
Authority
GB
United Kingdom
Prior art keywords
current flow
fire
ionization gauge
gauge
oct
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
Other languages
English (en)
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 filed Critical
Publication of GB1295498A publication Critical patent/GB1295498A/en
Expired legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N27/00—Investigating or analysing materials by the use of electric, electrochemical, or magnetic means
    • G01N27/62—Investigating or analysing materials by the use of electric, electrochemical, or magnetic means by investigating the ionisation of gases, e.g. aerosols; by investigating electric discharges, e.g. emission of cathode
    • G01N27/68—Investigating or analysing materials by the use of electric, electrochemical, or magnetic means by investigating the ionisation of gases, e.g. aerosols; by investigating electric discharges, e.g. emission of cathode using electric discharge to ionise a gas
    • G01N27/70—Investigating or analysing materials by the use of electric, electrochemical, or magnetic means by investigating the ionisation of gases, e.g. aerosols; by investigating electric discharges, e.g. emission of cathode using electric discharge to ionise a gas and measuring current or voltage
    • 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
GB1295498D 1969-10-29 1970-10-07 Expired GB1295498A (xx)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US87221069A 1969-10-29 1969-10-29

Publications (1)

Publication Number Publication Date
GB1295498A true GB1295498A (xx) 1972-11-08

Family

ID=25359074

Family Applications (1)

Application Number Title Priority Date Filing Date
GB1295498D Expired GB1295498A (xx) 1969-10-29 1970-10-07

Country Status (5)

Country Link
US (1) US3728615A (xx)
JP (1) JPS4812680B1 (xx)
CH (1) CH529400A (xx)
DE (1) DE2048817A1 (xx)
GB (1) GB1295498A (xx)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN106362506A (zh) * 2016-11-29 2017-02-01 中国烟草总公司郑州烟草研究院 一种全烟气暴露实验烟气废气排放装置及排放方法

Families Citing this family (23)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3742475A (en) * 1971-03-16 1973-06-26 Tif Instr Inc Gaseous impurity detector employing corona discharge phenomenon
US3949390A (en) * 1974-06-05 1976-04-06 Rca Corporation High voltage aerosol detector
US4011507A (en) * 1975-11-10 1977-03-08 Burroughs Corporation Full cycle current detector
FR2408837A1 (fr) * 1977-11-15 1979-06-08 Collard Jean Claude Detecteur de gaz de combustion a ionisation par haute tension
US4387369A (en) * 1978-10-11 1983-06-07 Johnson Controls, Inc. Broad spectrum charged electric field polar gas sensing and detection system
US4254414A (en) * 1979-03-22 1981-03-03 The United States Of America As Represented By The Secretary Of The Navy Processor-aided fire detector
US4306230A (en) * 1979-12-10 1981-12-15 Honeywell Inc. Self-checking photoelectric smoke detector
US4404516A (en) * 1980-10-29 1983-09-13 Johnson Jr Victor R System for detecting leaks from liquid-containing reservoirs and conduits
DE3220434A1 (de) * 1982-05-29 1983-12-01 Robert Bosch Gmbh, 7000 Stuttgart Verfahren zur ueberwachung einer messgroesse
FR2528980A1 (fr) * 1982-06-17 1983-12-23 Pgep Detecteur de niveau d'ionisation d'un milieu gazeux controle par arc electrique
FR2561778B1 (fr) * 1984-03-26 1988-06-24 Professional General Elect Detecteur electronique de particules chargees pour la detection d'incendie
JPS6139194A (ja) * 1984-07-31 1986-02-25 ホーチキ株式会社 火災警報装置
US4774472A (en) * 1986-03-24 1988-09-27 The Simco Company, Inc. Apparatus for method to test efficiency of air ionizers and method for determining ability of an air ionizer to sustain a potential difference between an isolated object and a reference potential
US5198774A (en) * 1987-12-17 1993-03-30 Williams Ii William J Gas monitoring apparatus
US4910463A (en) * 1987-12-17 1990-03-20 Sentech Corporation Halogen monitoring apparatus
US5347223A (en) * 1993-01-22 1994-09-13 J And N Associates, Inc. Gas leak detector sensing tip with interior concentric bores and corona current generation
DE4402518C2 (de) * 1994-01-28 1997-10-23 Preussag Ag Minimax Ionisationsrauchmelder
US5475311A (en) * 1994-05-03 1995-12-12 Motorola, Inc. Ionization gas analyzer and method
US5539381A (en) * 1994-11-14 1996-07-23 Sentrol, Inc. Fixed threshold and rate of rise heat detector with dynamic thermal reference
US5574434A (en) * 1995-08-11 1996-11-12 Liu; Hung-Chang Alarm for heat multistaged detecting
EP0820045A3 (de) * 1996-07-18 1999-10-13 Siemens Aktiengesellschaft Isonisationsrauchmelder
AU2003209963A1 (en) * 2002-03-01 2003-09-16 Perbrisu Limited Fire detection and suppression apparatus
US6642838B1 (en) 2002-10-31 2003-11-04 Charles A. Barnas Safety system for automobiles

Family Cites Families (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2369499A (en) * 1945-02-13 Apparatus fob measuring rate of
US2493543A (en) * 1947-09-08 1950-01-03 Brush Dev Co Monitoring system of comparator type
US2755999A (en) * 1952-05-17 1956-07-24 Gen Motors Corp Temperature measuring and control apparatus
US2954474A (en) * 1955-04-01 1960-09-27 Nat Res Corp Measuring
US3497805A (en) * 1960-02-18 1970-02-24 Bausch & Lomb Circuit including a constant amplitude pulse generator for adjusting the amplitude of pulses produced by a transducer
US3350703A (en) * 1964-07-17 1967-10-31 Johnson Williams Inc Gas concentration detection apparatus
US3460125A (en) * 1964-12-10 1969-08-05 Thermal Ind Of Florida Inc Method and apparatus for detecting gaseous impurities
US3445757A (en) * 1965-10-14 1969-05-20 Mc Donnell Douglas Corp Capillary ionization gas detector and analyzer using timed interval current fluctuations
US3439261A (en) * 1966-09-30 1969-04-15 Gen Electric Combustible gas detector using a corona discharge

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN106362506A (zh) * 2016-11-29 2017-02-01 中国烟草总公司郑州烟草研究院 一种全烟气暴露实验烟气废气排放装置及排放方法

Also Published As

Publication number Publication date
DE2048817A1 (de) 1971-05-06
JPS4812680B1 (xx) 1973-04-21
CH529400A (de) 1972-10-15
US3728615A (en) 1973-04-17

Similar Documents

Publication Publication Date Title
GB1295498A (xx)
GB1250297A (xx)
ES415905A1 (es) Perfeccionamientos en los avisadores de incendios por ioni-zacion.
GB1020771A (en) Electric alarm apparatus incorporating ionisation chambers
ES444964A1 (es) Un detector de ionizacion.
ES412625A1 (es) Instalacion para detectar halogeno radioactivo en una co- rriente de gas de muestra en equipos de energia nuclear.
GB1528654A (en) Aerosol detection devices
IE45520L (en) Smoke detector
GB1087609A (en) Fire and smoke detector
GB936623A (en) Improvements in or relating to apparatus for detecting small particles in a space
GB1329475A (en) Ionization fire alarm
GB1280298A (en) Improvements in and relating to combustion detectors
GB1024552A (en) Improvements in and relating to the electrical detection of aerosols in air
FR2087004A5 (en) Gas detector using semi-conductor with gasre
IT1040697B (it) Rivelatore di fumo e sistema circuitale di allarme
IE792181L (en) Ionisation type fire detector
GB1260984A (en) Ionization smoke detector
ES468622A1 (es) Dispositivo de deteccion de humos de incendio
ES465281A1 (es) Perfeccionamientos en dispositivos de seguridad contra fugasde gas en instalaciones de alimentacion de gas combustible.
GB810062A (en) A device to detect smoke
ES361790A1 (es) Procedimiento y dispositivo para la vigilancia de una lla- ma.
GB1299326A (en) Ionization smoke detectors
GB1300909A (en) Ionization smoke detector
AU410336B2 (en) Ionization fire alarm and improved method of detecting smoke and combustion aerosols
GB1365018A (en) Ionization type smoke detector

Legal Events

Date Code Title Description
PS Patent sealed [section 19, patents act 1949]
PLNP Patent lapsed through nonpayment of renewal fees