DK144255C - DEVICE FOR FIREFIGHT DETECTION - Google Patents

DEVICE FOR FIREFIGHT DETECTION

Info

Publication number: DK144255C
Authority: DK; Denmark
Prior art keywords: firefight; detection; firefight detection
Prior art date: 1972-08-11

Application number

DK439773A

Other languages

Danish (da)

Other versions

DK144255B (en

Inventor

W T Peberdy

E Macdonald

Original Assignee

Chubb Fire Security Ltd

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.)

1972-08-11

Filing date

1973-08-10

Publication date

1982-08-16

1973-08-10 Application filed by Chubb Fire Security Ltd filed Critical Chubb Fire Security Ltd

1982-01-25 Publication of DK144255B publication Critical patent/DK144255B/en

1982-08-16 Application granted granted Critical

1982-08-16 Publication of DK144255C publication Critical patent/DK144255C/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
- G08B17/103—Actuation by presence of smoke or gases, e.g. automatic alarm devices for analysing flowing fluid materials by the use of optical means using a light emitting and receiving device

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)
Photometry And Measurement Of Optical Pulse Characteristics (AREA)

DK439773A 1972-08-11 1973-08-10 DEVICE FOR FIREFIGHT DETECTION DK144255C (en)

Applications Claiming Priority (4)

Application Number	Priority Date	Filing Date	Title
GB3763372		1972-08-11
GB3763372A GB1405615A (en)	1972-08-11	1972-08-11	Fire alarms
GB5258772		1972-11-14
GB5258772		1972-11-14

Publications (2)

Publication Number	Publication Date
DK144255B DK144255B (en)	1982-01-25
DK144255C true DK144255C (en)	1982-08-16

Family

ID=26263518

Family Applications (1)

Application Number	Title	Priority Date	Filing Date
DK439773A DK144255C (en)	1972-08-11	1973-08-10	DEVICE FOR FIREFIGHT DETECTION

Country Status (17)

Country	Link
JP (1)	JPS49132998A (en)
AT (1)	AT347300B (en)
AU (1)	AU476368B2 (en)
CH (1)	CH560434A5 (en)
DD (1)	DD107157A5 (en)
DE (1)	DE2340041C2 (en)
DK (1)	DK144255C (en)
ES (1)	ES417739A1 (en)
FR (1)	FR2195813B3 (en)
GB (1)	GB1405615A (en)
HK (1)	HK55376A (en)
IL (1)	IL42930A (en)
IT (1)	IT990203B (en)
MY (1)	MY7600243A (en)
NL (1)	NL7311010A (en)
NO (1)	NO132564C (en)
SE (1)	SE383793B (en)

Families Citing this family (9)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
SE7604502L (en) *	1976-04-15	1977-10-16	Ericsson Telefon Ab L M	OPTICAL FIRE DETECTOR
SE395554B (en) *	1976-09-01	1977-08-15	Ericsson Telefon Ab L M	OPTICAL FIRE DETECTOR
EP0022438B1 (en) *	1979-07-13	1983-07-20	Securiton AG	Method for detecting aerosols in air of a control zone and apparatus for its performing
JPS5631625A (en) *	1979-08-24	1981-03-31	Hochiki Corp	Smoke detector of photoelectronic type
JPS57140925A (en) *	1981-02-24	1982-08-31	Fuji Heavy Ind Ltd	Detection of clutch overheat
AU556490B2 (en) *	1982-07-29	1986-11-06	Kerr-Mcgee Corp.	Production monitoring system
EP0145189B1 (en) *	1983-10-21	1990-08-08	COLE, Martin Terence	Improvements relating to smoke detection apparatus
DE102004004098B3 (en) *	2004-01-27	2005-09-01	Wagner Alarm- Und Sicherungssysteme Gmbh	Method for evaluating a scattered light signal and scattered light detector for carrying out the method
CN108510701B (en) *	2018-03-20	2019-11-22	深圳市泰和安科技有限公司	A kind of intelligent smog alarm method, apparatus and system

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
DE455987C (en) *	1924-04-11	1928-02-11	John Joseph Dowling	Device for displaying light fluctuations through a light-sensitive cell and a highly sensitive relay
DE1024851B (en) *	1953-05-04	1958-02-20	Electronics Corp America	Display device for flames
JPS4429154Y1 (en) *	1967-04-20	1969-12-03
GB1278205A (en) *	1970-02-11	1972-06-21	Shorrock Develpoments Ltd	Smoke detecting device
DE2023463B1 (en) *	1970-05-13	1971-12-30	Preussag Ag Feuerschutz	Optical smoke detector

1972
- 1972-08-11 GB GB3763372A patent/GB1405615A/en not_active Expired
1973
- 1973-08-06 NO NO3132/73A patent/NO132564C/no unknown
- 1973-08-08 DE DE2340041A patent/DE2340041C2/en not_active Expired
- 1973-08-08 IL IL42930A patent/IL42930A/en unknown
- 1973-08-08 AU AU59013/73A patent/AU476368B2/en not_active Expired
- 1973-08-09 IT IT51932/73A patent/IT990203B/en active
- 1973-08-09 NL NL7311010A patent/NL7311010A/xx not_active Application Discontinuation
- 1973-08-10 DK DK439773A patent/DK144255C/en not_active IP Right Cessation
- 1973-08-10 SE SE7310965A patent/SE383793B/en unknown
- 1973-08-10 CH CH1157773A patent/CH560434A5/xx not_active IP Right Cessation
- 1973-08-10 DD DD172840A patent/DD107157A5/xx unknown
- 1973-08-10 ES ES417739A patent/ES417739A1/en not_active Expired
- 1973-08-10 FR FR7329293A patent/FR2195813B3/fr not_active Expired
- 1973-08-11 JP JP48089688A patent/JPS49132998A/ja active Pending
- 1973-08-13 AT AT708673A patent/AT347300B/en not_active IP Right Cessation
1976
- 1976-09-08 HK HK553/76*UA patent/HK55376A/en unknown
- 1976-12-31 MY MY1976243A patent/MY7600243A/en unknown

Also Published As

Publication number	Publication date
FR2195813B3 (en)	1975-10-31
IL42930A (en)	1976-10-31
GB1405615A (en)	1975-09-10
NL7311010A (en)	1974-02-13
JPS49132998A (en)	1974-12-20
AU5901373A (en)	1975-02-13
DK144255B (en)	1982-01-25
IT990203B (en)	1975-06-20
AT347300B (en)	1978-12-27
ATA708673A (en)	1978-04-15
NO132564C (en)	1975-11-26
NO132564B (en)	1975-08-18
FR2195813A1 (en)	1974-03-08
SE383793B (en)	1976-03-29
IL42930A0 (en)	1973-11-28
AU476368B2 (en)	1976-09-16
ES417739A1 (en)	1976-02-16
HK55376A (en)	1976-09-17
CH560434A5 (en)	1975-03-27
DD107157A5 (en)	1974-07-12
MY7600243A (en)	1976-12-31
DE2340041A1 (en)	1974-04-04
DE2340041C2 (en)	1984-11-29

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Legal Events

Date	Code	Title	Description
1988-05-02	PBP	Patent lapsed