CH483682A - Automatic fire alarm with at least one measuring chamber - Google Patents

Automatic fire alarm with at least one measuring chamber

Info

Publication number
CH483682A
CH483682A CH474769A CH474769A CH483682A CH 483682 A CH483682 A CH 483682A CH 474769 A CH474769 A CH 474769A CH 474769 A CH474769 A CH 474769A CH 483682 A CH483682 A CH 483682A
Authority
CH
Switzerland
Prior art keywords
fire alarm
measuring chamber
automatic fire
automatic
measuring
Prior art date
Application number
CH474769A
Other languages
German (de)
Inventor
A Dr Purt Gustav
Bosshard Walter
Original Assignee
Cerberus Ag
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 Cerberus Ag filed Critical Cerberus Ag
Priority to CH474769A priority Critical patent/CH483682A/en
Publication of CH483682A publication Critical patent/CH483682A/en
Priority to DE2011340A priority patent/DE2011340C3/en
Priority to US00019244A priority patent/US3725011A/en
Priority to BE747708D priority patent/BE747708A/en
Priority to FR7010400A priority patent/FR2039878A5/fr
Priority to GB04929/70A priority patent/GB1243769A/en

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
    • 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
    • G08B17/117—Actuation by presence of smoke or gases, e.g. automatic alarm devices for analysing flowing fluid materials by the use of optical means by using a detection device for specific gases, e.g. combustion products, produced by the fire
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10S—TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10S422/00—Chemical apparatus and process disinfecting, deodorizing, preserving, or sterilizing
    • Y10S422/903—Radioactive material apparatus

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)
  • Investigating Or Analysing Materials By Optical Means (AREA)
  • Other Investigation Or Analysis Of Materials By Electrical Means (AREA)
  • Investigating Or Analyzing Non-Biological Materials By The Use Of Chemical Means (AREA)
CH474769A 1969-03-28 1969-03-28 Automatic fire alarm with at least one measuring chamber CH483682A (en)

Priority Applications (6)

Application Number Priority Date Filing Date Title
CH474769A CH483682A (en) 1969-03-28 1969-03-28 Automatic fire alarm with at least one measuring chamber
DE2011340A DE2011340C3 (en) 1969-03-28 1970-03-10 Fire alarms with at least one measuring chamber
US00019244A US3725011A (en) 1969-03-28 1970-03-13 Automatic fire alarm with at least one measuring chamber
BE747708D BE747708A (en) 1969-03-28 1970-03-20 AUTOMATIC FIRE ALARM CONTAINING AT LEAST ONE MEASURING CHAMBER
FR7010400A FR2039878A5 (en) 1969-03-28 1970-03-23
GB04929/70A GB1243769A (en) 1969-03-28 1970-03-26 Automatic fire alarm with at least one measuring chamber

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CH474769A CH483682A (en) 1969-03-28 1969-03-28 Automatic fire alarm with at least one measuring chamber

Publications (1)

Publication Number Publication Date
CH483682A true CH483682A (en) 1969-12-31

Family

ID=4281814

Family Applications (1)

Application Number Title Priority Date Filing Date
CH474769A CH483682A (en) 1969-03-28 1969-03-28 Automatic fire alarm with at least one measuring chamber

Country Status (6)

Country Link
US (1) US3725011A (en)
BE (1) BE747708A (en)
CH (1) CH483682A (en)
DE (1) DE2011340C3 (en)
FR (1) FR2039878A5 (en)
GB (1) GB1243769A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2434178A1 (en) * 1974-07-16 1976-01-22 Matsushita Electric Works Ltd Smoke detector with light beam control - has photoemitter and photo-receiver elements in housing top and bottom

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3849685A (en) * 1973-06-22 1974-11-19 Honeywell Inc Ionization chamber with recessed radioactive body
US3832552A (en) * 1973-06-22 1974-08-27 Honeywell Inc Dual chamber ionization smoke detector
JPS5178390A (en) * 1974-12-28 1976-07-07 Nittan Co Ltd KEMURI KANCHIKI
JPS5552558Y2 (en) * 1975-02-10 1980-12-05

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2434178A1 (en) * 1974-07-16 1976-01-22 Matsushita Electric Works Ltd Smoke detector with light beam control - has photoemitter and photo-receiver elements in housing top and bottom

Also Published As

Publication number Publication date
BE747708A (en) 1970-08-31
DE2011340B2 (en) 1974-07-11
FR2039878A5 (en) 1971-01-15
GB1243769A (en) 1971-08-25
DE2011340C3 (en) 1978-04-20
DE2011340A1 (en) 1970-10-08
US3725011A (en) 1973-04-03

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Legal Events

Date Code Title Description
PL Patent ceased