CH475614A - Ionization fire alarms - Google Patents

Ionization fire alarms

Info

Publication number: CH475614A
Authority: CH; Switzerland
Prior art keywords: fire alarms; ionization fire; ionization; alarms; fire
Prior art date: 1968-06-18

Application number

CH903568A

Other languages

German (de)

Inventor

Mueller Peter

Andreas Dr Scheidweiler

Original Assignee

Cerberus Ag Werke Fuer Elektro

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.)

1968-06-18

Filing date

1968-06-18

Publication date

1969-07-15

1968-06-18 Application filed by Cerberus Ag Werke Fuer Elektro filed Critical Cerberus Ag Werke Fuer Elektro

1968-06-18 Priority to CH903568A priority Critical patent/CH475614A/en

1969-06-02 Priority to IL32330A priority patent/IL32330A/en

1969-06-04 Priority to BE734060D priority patent/BE734060A/xx

1969-06-06 Priority to DE1928874A priority patent/DE1928874B2/en

1969-06-09 Priority to FR6918993A priority patent/FR2011126A1/fr

1969-06-17 Priority to DK326169AA priority patent/DK125938B/en

1969-06-17 Priority to NL6909253.A priority patent/NL164407C/en

1969-06-17 Priority to SE08590/69A priority patent/SE340971B/xx

1969-06-18 Priority to GB30892/69A priority patent/GB1217792A/en

1969-07-15 Publication of CH475614A publication Critical patent/CH475614A/en

1971-04-05 Priority to US00131106A priority patent/US3731093A/en

1978-04-13 Priority to HK203/78A priority patent/HK20378A/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

Physics & Mathematics (AREA)
General Physics & Mathematics (AREA)
Chemical & Material Sciences (AREA)
Business, Economics & Management (AREA)
Emergency Management (AREA)
Health & Medical Sciences (AREA)
Analytical Chemistry (AREA)
Electrochemistry (AREA)
Chemical Kinetics & Catalysis (AREA)
Life Sciences & Earth Sciences (AREA)
Toxicology (AREA)
Biochemistry (AREA)
General Health & Medical Sciences (AREA)
Immunology (AREA)
Pathology (AREA)
Fire-Detection Mechanisms (AREA)
Other Investigation Or Analysis Of Materials By Electrical Means (AREA)

CH903568A 1968-06-18 1968-06-18 Ionization fire alarms CH475614A (en)

Priority Applications (11)

Application Number	Priority Date	Filing Date	Title
CH903568A CH475614A (en)	1968-06-18	1968-06-18	Ionization fire alarms
IL32330A IL32330A (en)	1968-06-18	1969-06-02	Ionisation fire alarm
BE734060D BE734060A (en)	1968-06-18	1969-06-04
DE1928874A DE1928874B2 (en)	1968-06-18	1969-06-06	Ionization fire alarms
FR6918993A FR2011126A1 (en)	1968-06-18	1969-06-09
DK326169AA DK125938B (en)	1968-06-18	1969-06-17	Ionization fire detector.
NL6909253.A NL164407C (en)	1968-06-18	1969-06-17	IONIZATION FIRE ALARM.
SE08590/69A SE340971B (en)	1968-06-18	1969-06-17
GB30892/69A GB1217792A (en)	1968-06-18	1969-06-18	Ionisation fire alarm
US00131106A US3731093A (en)	1968-06-18	1971-04-05	Ionization fire alarm with wind screen
HK203/78A HK20378A (en)	1968-06-18	1978-04-13	Ionisation fire alarm

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
CH475614A true CH475614A (en)	1969-07-15

Family

ID=4347596

Family Applications (1)

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

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

1968
- 1968-06-18 CH CH903568A patent/CH475614A/en not_active IP Right Cessation
1969
- 1969-06-02 IL IL32330A patent/IL32330A/en unknown
- 1969-06-04 BE BE734060D patent/BE734060A/xx unknown
- 1969-06-06 DE DE1928874A patent/DE1928874B2/en not_active Withdrawn
- 1969-06-09 FR FR6918993A patent/FR2011126A1/fr not_active Withdrawn
- 1969-06-17 SE SE08590/69A patent/SE340971B/xx unknown
- 1969-06-17 DK DK326169AA patent/DK125938B/en not_active IP Right Cessation
- 1969-06-17 NL NL6909253.A patent/NL164407C/en not_active IP Right Cessation
- 1969-06-18 GB GB30892/69A patent/GB1217792A/en not_active Expired
1971
- 1971-04-05 US US00131106A patent/US3731093A/en not_active Expired - Lifetime
1978
- 1978-04-13 HK HK203/78A patent/HK20378A/en unknown

Also Published As

Publication number	Publication date
US3731093A (en)	1973-05-01
DE1928874B2 (en)	1978-03-09
DE1928874A1 (en)	1970-01-02
SE340971B (en)	1971-12-06
IL32330A0 (en)	1969-08-27
DK125938B (en)	1973-05-21
IL32330A (en)	1972-04-27
HK20378A (en)	1978-04-20
NL6909253A (en)	1969-12-22
FR2011126A1 (en)	1970-02-27
GB1217792A (en)	1970-12-31
NL164407B (en)	1980-07-15
NL164407C (en)	1980-12-15
BE734060A (en)	1969-11-17

Legal Events

Date	Code	Title	Description
1983-02-28	PL	Patent ceased

Publication	Publication Date	Title
CH508251A (en)	1971-05-31	Ionization fire alarms
CH521649A (en)	1972-04-15	Fire alarm device
AT275365B (en)	1969-10-27	Fire alarm system
CH540539A (en)	1973-08-15	Fire alarm system
CH497755A (en)	1970-10-15	Ionization fire alarms
CH486082A (en)	1970-02-15	Ionization fire alarms
DK131251B (en)	1975-06-16	Fire alarm.
DK126607C (en)	1977-06-20	IONIZATION FIRE ALARM
CH475614A (en)	1969-07-15	Ionization fire alarms
DK122548B (en)	1972-03-13	Fire alarm.
CH539310A (en)	1973-07-15	Ionization fire alarm
NL145378B (en)	1975-03-17	IONIZATION FIRE ALARM.
AT304026B (en)	1972-12-27	False ceiling
CH489070A (en)	1970-04-15	Ionization fire alarms
CH499329A (en)	1970-11-30	Fire alarm
AT307240B (en)	1973-05-10	Fire protection arrangement
AT301398B (en)	1972-09-11	Ionization smoke detector
AT292510B (en)	1971-08-25	Ionization fire alarms
DE1933938B2 (en)	1971-07-22	IONIZATION SMOKE DETECTOR
AT332762B (en)	1976-10-11	IONIZATION FIRE ALARM
CH499988A (en)	1970-12-15	Fire rescue device
AT298986B (en)	1972-05-25	Fire extinguishing agents
AT320477B (en)	1975-02-10	Ionization fire alarms
CH508252A (en)	1971-05-31	Fire alarm system
CH510310A (en)	1971-07-15	Fire alarm