DK125938B - Ionization fire detector. - Google Patents

Ionization fire detector.

Info

Publication number
DK125938B
DK125938B DK326169AA DK326169A DK125938B DK 125938 B DK125938 B DK 125938B DK 326169A A DK326169A A DK 326169AA DK 326169 A DK326169 A DK 326169A DK 125938 B DK125938 B DK 125938B
Authority
DK
Denmark
Prior art keywords
fire detector
ionization fire
ionization
detector
fire
Prior art date
Application number
DK326169AA
Other languages
Danish (da)
Inventor
A Scheidweiler
P Mueller
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
Publication of DK125938B publication Critical patent/DK125938B/en

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
    • 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
    • G01N27/64—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 wave or particle radiation to ionise a gas, e.g. in an ionisation chamber
    • G01N27/66—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 wave or particle radiation to ionise a gas, e.g. in an ionisation chamber and measuring current or voltage
    • G—PHYSICS
    • G08—SIGNALLING
    • G08B—SIGNALLING OR CALLING SYSTEMS; ORDER TELEGRAPHS; ALARM SYSTEMS
    • G08B25/00—Alarm systems in which the location of the alarm condition is signalled to a central station, e.g. fire or police telegraphic systems

Landscapes

  • Chemical & Material Sciences (AREA)
  • General Physics & Mathematics (AREA)
  • Physics & Mathematics (AREA)
  • Analytical Chemistry (AREA)
  • Emergency Management (AREA)
  • Business, Economics & Management (AREA)
  • Health & Medical Sciences (AREA)
  • Biochemistry (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • General Health & Medical Sciences (AREA)
  • Electrochemistry (AREA)
  • Immunology (AREA)
  • Pathology (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Toxicology (AREA)
  • Fire-Detection Mechanisms (AREA)
  • Other Investigation Or Analysis Of Materials By Electrical Means (AREA)
DK326169AA 1968-06-18 1969-06-17 Ionization fire detector. DK125938B (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CH903568A CH475614A (en) 1968-06-18 1968-06-18 Ionization fire alarms

Publications (1)

Publication Number Publication Date
DK125938B true DK125938B (en) 1973-05-21

Family

ID=4347596

Family Applications (1)

Application Number Title Priority Date Filing Date
DK326169AA DK125938B (en) 1968-06-18 1969-06-17 Ionization fire detector.

Country Status (11)

Country Link
US (1) US3731093A (en)
BE (1) BE734060A (en)
CH (1) CH475614A (en)
DE (1) DE1928874B2 (en)
DK (1) DK125938B (en)
FR (1) FR2011126A1 (en)
GB (1) GB1217792A (en)
HK (1) HK20378A (en)
IL (1) IL32330A (en)
NL (1) NL164407C (en)
SE (1) SE340971B (en)

Families Citing this family (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CH551057A (en) * 1973-04-17 1974-06-28 Cerberus Ag IONIZATION ALARM.
US3903419A (en) * 1973-04-20 1975-09-02 Fire Alert Company Combustion products detector assembly and method of operation
FR2268263B1 (en) * 1974-04-18 1979-03-30 Hochiki Co
US3959788A (en) * 1974-05-10 1976-05-25 General Signal Corporation Ionization-type fire detector
US4044263A (en) * 1975-01-28 1977-08-23 Walter Kidde & Company, Inc. Ionization dual-zone static detector having single radioactive source
US4439683A (en) * 1981-02-11 1984-03-27 General Signal Corporation Ionization smoke detector
US4469953A (en) * 1982-02-02 1984-09-04 Nittan Company, Limited Combination ionization and photoelectric smoke detector
US4529976A (en) * 1982-10-29 1985-07-16 Frederick M. Jameson Smoke detector with masking shield
FR2594953B1 (en) * 1986-02-25 1989-05-05 Lewiner Jacques SMOKE DETECTOR WITH IONIZATION CHAMBER
JPH01102991U (en) * 1987-12-26 1989-07-12
US5485144A (en) * 1993-05-07 1996-01-16 Pittway Corporation Compensated ionization sensor

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CH416388A (en) * 1962-11-19 1966-06-30 Cerberus Ag Ionization fire alarm
US3514603A (en) * 1966-12-22 1970-05-26 Johnson Service Co Ionization chamber detection apparatus having a low voltage source means
US3560737A (en) * 1967-08-02 1971-02-02 Honeywell Inc Combustion products detector using a radioactive source and detector

Also Published As

Publication number Publication date
IL32330A0 (en) 1969-08-27
HK20378A (en) 1978-04-20
SE340971B (en) 1971-12-06
DE1928874A1 (en) 1970-01-02
IL32330A (en) 1972-04-27
DE1928874B2 (en) 1978-03-09
BE734060A (en) 1969-11-17
CH475614A (en) 1969-07-15
NL164407B (en) 1980-07-15
NL6909253A (en) 1969-12-22
GB1217792A (en) 1970-12-31
FR2011126A1 (en) 1970-02-27
US3731093A (en) 1973-05-01
NL164407C (en) 1980-12-15

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Legal Events

Date Code Title Description
PBP Patent lapsed