CH625356A5 - - Google Patents

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Publication number
CH625356A5
CH625356A5 CH369078A CH369078A CH625356A5 CH 625356 A5 CH625356 A5 CH 625356A5 CH 369078 A CH369078 A CH 369078A CH 369078 A CH369078 A CH 369078A CH 625356 A5 CH625356 A5 CH 625356A5
Authority
CH
Switzerland
Prior art keywords
circuit
chambers
analysis
electrodes
electrical
Prior art date
Application number
CH369078A
Other languages
English (en)
French (fr)
Inventor
Emile Louis Hugon
Original Assignee
Gamma Electronic
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 Gamma Electronic filed Critical Gamma Electronic
Publication of CH625356A5 publication Critical patent/CH625356A5/fr

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
    • 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)
  • Other Investigation Or Analysis Of Materials By Electrical Means (AREA)
  • Fire-Detection Mechanisms (AREA)
CH369078A 1977-04-08 1978-04-06 CH625356A5 (ko)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR7710719A FR2386874A1 (fr) 1977-04-08 1977-04-08 Detecteur de fumees a ionisation associe a un circuit electronique de mesure velocimetrique

Publications (1)

Publication Number Publication Date
CH625356A5 true CH625356A5 (ko) 1981-09-15

Family

ID=9189231

Family Applications (1)

Application Number Title Priority Date Filing Date
CH369078A CH625356A5 (ko) 1977-04-08 1978-04-06

Country Status (7)

Country Link
US (1) US4238677A (ko)
JP (1) JPS541092A (ko)
BE (1) BE884312Q (ko)
CH (1) CH625356A5 (ko)
ES (1) ES468622A1 (ko)
FR (1) FR2386874A1 (ko)
GB (1) GB1598973A (ko)

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4488044A (en) * 1981-11-20 1984-12-11 Pittway Corporation Ionization chamber for smoke detector and the like
FR2523309A1 (fr) * 1982-03-09 1983-09-16 Hugon Emile Nouveau detecteur de fumees capacitif a modules interchangeables
US4617560A (en) * 1984-12-31 1986-10-14 Gutmann Robin P E Smoke or fire detector
US5327119A (en) * 1989-12-22 1994-07-05 Hochiki Kabushiki Kaisha Ionizing smoke sensor
DE10326047A1 (de) * 2003-06-10 2004-12-30 Degussa Ag Verfahren zur Herstellung alpha-substituierter Carbonsäuren aus der Reihe der alpha-Hydroxycarbonsäuren und N-substituierten-alpha-Aminocarbonsäuren

Family Cites Families (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2029485B2 (de) * 1969-06-21 1971-11-25 Nittan Co. Ltd., Tokio Ionisations rauchfuehler
US3665441A (en) * 1970-09-14 1972-05-23 Gen Signal Corp Method and apparatus for detecting aerosols
CH570016A5 (ko) * 1973-03-30 1975-11-28 Cerberus Ag
US3906474A (en) * 1973-05-07 1975-09-16 Fire Alert Company Combustion products alarm
US3909815A (en) * 1973-06-01 1975-09-30 Gamma Electronic Detector for fumes and combustion gases
US3812362A (en) * 1973-07-02 1974-05-21 Honeywell Inc Smoke detector circuit
US4020415A (en) * 1974-12-30 1977-04-26 Unitec, Inc. Combustion product indicator
JPS51100085U (ko) * 1975-02-10 1976-08-11
US4097851A (en) * 1976-07-19 1978-06-27 Pittway Corporation Sensitivity compensated fire detector

Also Published As

Publication number Publication date
FR2386874B1 (ko) 1980-01-18
ES468622A1 (es) 1979-04-01
BE884312Q (fr) 1980-11-03
JPS541092A (en) 1979-01-06
GB1598973A (en) 1981-09-30
FR2386874A1 (fr) 1978-11-03
US4238677A (en) 1980-12-09

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Legal Events

Date Code Title Description
PL Patent ceased