ZA734995B - Improvemente in or relating to fire detectors - Google Patents

Improvemente in or relating to fire detectors

Info

Publication number: ZA734995B
Authority: ZA; South Africa
Prior art keywords: improvemente; relating; fire detectors; detectors; fire
Prior art date: 1973-07-23

Application number

ZA734995A

Other languages

English (en)

Inventor

T Newington

L Swanepoel

Original Assignee

Anglo Amer Corp South Africa

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.)

1973-07-23

Filing date

1973-07-23

Publication date

1974-10-30

1973-07-23 Application filed by Anglo Amer Corp South Africa filed Critical Anglo Amer Corp South Africa

1973-07-23 Priority to ZA734995A priority Critical patent/ZA734995B/xx

1974-07-19 Priority to CH1000974A priority patent/CH585446A5/xx

1974-07-20 Priority to DE2435053A priority patent/DE2435053B2/de

1974-07-22 Priority to GB3242274A priority patent/GB1458098A/en

1974-07-22 Priority to US05/490,781 priority patent/US3980928A/en

1974-07-22 Priority to CA205,251A priority patent/CA1030634A/fr

1974-07-22 Priority to AU71507/74A priority patent/AU486845B2/en

1974-07-23 Priority to FR7425524A priority patent/FR2238506B1/fr

1974-07-23 Priority to JP8452474A priority patent/JPS5718240B2/ja

1974-07-23 Priority to DK396174A priority patent/DK396174A/da

1974-09-28 Priority to IN2188/CAL/74A priority patent/IN139160B/en

1974-10-30 Publication of ZA734995B publication Critical patent/ZA734995B/xx

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

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)
Other Investigation Or Analysis Of Materials By Electrical Means (AREA)

ZA734995A 1973-07-23 1973-07-23 Improvemente in or relating to fire detectors ZA734995B (en)

Priority Applications (11)

Application Number	Priority Date	Filing Date	Title
ZA734995A ZA734995B (en)	1973-07-23	1973-07-23	Improvemente in or relating to fire detectors
CH1000974A CH585446A5 (fr)	1973-07-23	1974-07-19
DE2435053A DE2435053B2 (de)	1973-07-23	1974-07-20	Ionisationsfeuerdetektor
GB3242274A GB1458098A (en)	1973-07-23	1974-07-22	Fire detectors
US05/490,781 US3980928A (en)	1973-07-23	1974-07-22	Fire detectors
CA205,251A CA1030634A (fr)	1973-07-23	1974-07-22	Detecteur d'incendie bi-chambre
AU71507/74A AU486845B2 (en)	1973-07-23	1974-07-22	Improvements in or relating to fire detectors
FR7425524A FR2238506B1 (fr)	1973-07-23	1974-07-23
JP8452474A JPS5718240B2 (fr)	1973-07-23	1974-07-23
DK396174A DK396174A (fr)	1973-07-23	1974-07-23
IN2188/CAL/74A IN139160B (fr)	1973-07-23	1974-09-28

Applications Claiming Priority (1)

Application Number	Priority Date	Filing Date	Title
ZA734995A ZA734995B (en)	1973-07-23	1973-07-23	Improvemente in or relating to fire detectors

Publications (1)

Publication Number	Publication Date
ZA734995B true ZA734995B (en)	1974-10-30

Family

ID=25566610

Family Applications (1)

Application Number	Title	Priority Date	Filing Date
ZA734995A ZA734995B (en)	1973-07-23	1973-07-23	Improvemente in or relating to fire detectors

Country Status (10)

Country	Link
US (1)	US3980928A (fr)
JP (1)	JPS5718240B2 (fr)
CA (1)	CA1030634A (fr)
CH (1)	CH585446A5 (fr)
DE (1)	DE2435053B2 (fr)
DK (1)	DK396174A (fr)
FR (1)	FR2238506B1 (fr)
GB (1)	GB1458098A (fr)
IN (1)	IN139160B (fr)
ZA (1)	ZA734995B (fr)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
JPS5878B2 (ja) *	1976-01-30	1983-01-05	松下電工株式会社	イオン化式煙感知器
US4091430A (en) *	1976-11-11	1978-05-23	Rca Corporation	Guard circuit for high impedance signal circuits
DE2711457C2 (de) *	1977-03-16	1985-06-27	Siemens AG, 1000 Berlin und 8000 München	Ionisationsbrandmelder

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
US3529201A (en) *	1968-11-12	1970-09-15	United States Steel Corp	Glow discharge suppressing insulator
DE2029485B2 (de) *	1969-06-21	1971-11-25	Nittan Co. Ltd., Tokio	Ionisations rauchfuehler
US3824422A (en) *	1972-06-27	1974-07-16	Anglo Amer Corp South Africa	Smoke detectors

1973
- 1973-07-23 ZA ZA734995A patent/ZA734995B/xx unknown
1974
- 1974-07-19 CH CH1000974A patent/CH585446A5/xx not_active IP Right Cessation
- 1974-07-20 DE DE2435053A patent/DE2435053B2/de not_active Withdrawn
- 1974-07-22 US US05/490,781 patent/US3980928A/en not_active Expired - Lifetime
- 1974-07-22 GB GB3242274A patent/GB1458098A/en not_active Expired
- 1974-07-22 CA CA205,251A patent/CA1030634A/fr not_active Expired
- 1974-07-23 FR FR7425524A patent/FR2238506B1/fr not_active Expired
- 1974-07-23 JP JP8452474A patent/JPS5718240B2/ja not_active Expired
- 1974-07-23 DK DK396174A patent/DK396174A/da unknown
- 1974-09-28 IN IN2188/CAL/74A patent/IN139160B/en unknown

Also Published As

Publication number	Publication date
US3980928A (en)	1976-09-14
AU7150774A (en)	1976-01-22
CH585446A5 (fr)	1977-02-28
DE2435053A1 (de)	1975-04-24
DE2435053B2 (de)	1980-02-07
IN139160B (fr)	1976-05-15
CA1030634A (fr)	1978-05-02
DK396174A (fr)	1975-03-03
GB1458098A (en)	1976-12-08
FR2238506A1 (fr)	1975-02-21
JPS5718240B2 (fr)	1982-04-15
FR2238506B1 (fr)	1977-06-24
JPS5072598A (fr)	1975-06-16

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