DK141948B - Brandalarmapparat med radioaktiv kilde til frembringelse af ioner. - Google Patents

Brandalarmapparat med radioaktiv kilde til frembringelse af ioner. Download PDF

Info

Publication number: DK141948B
Authority: DK; Denmark
Prior art keywords: air; fire alarm; ionization; electrodes; ionization chamber
Prior art date: 1973-04-03

Application number

DK182774AA

Other languages

Danish (da)

English (en)

Other versions

DK141948C (de

Inventor

Hansjoachim Paschedag

Thomas Lampart

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.)

1973-04-03

Filing date

1974-04-02

Publication date

1980-07-21

1974-04-02 Application filed by Cerberus Ag filed Critical Cerberus Ag

1980-07-21 Publication of DK141948B publication Critical patent/DK141948B/da

1980-12-01 Application granted granted Critical

1980-12-01 Publication of DK141948C publication Critical patent/DK141948C/da

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)
Fire Alarms (AREA)
Fire-Extinguishing By Fire Departments, And Fire-Extinguishing Equipment And Control Thereof (AREA)

DK182774AA 1973-04-03 1974-04-02 Brandalarmapparat med radioaktiv kilde til frembringelse af ioner. DK141948B (da)

Applications Claiming Priority (2)

Application Number	Priority Date	Filing Date	Title
CH474173		1973-04-03
CH474173A CH554033A (de)	1973-04-03	1973-04-03	Iomisations-feuermelde-einrichtung.

Publications (2)

Publication Number	Publication Date
DK141948B true DK141948B (da)	1980-07-21
DK141948C DK141948C (de)	1980-12-01

Family

ID=4281699

Family Applications (1)

Application Number	Title	Priority Date	Filing Date
DK182774AA DK141948B (da)	1973-04-03	1974-04-02	Brandalarmapparat med radioaktiv kilde til frembringelse af ioner.

Country Status (10)

Country	Link
JP (1)	JPS503300A (de)
CH (1)	CH554033A (de)
DE (1)	DE2412557C3 (de)
DK (1)	DK141948B (de)
FI (1)	FI57496C (de)
FR (1)	FR2224819B1 (de)
GB (1)	GB1432531A (de)
NO (1)	NO137666C (de)
SE (1)	SE389570B (de)
ZA (1)	ZA741787B (de)

Families Citing this family (8)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
BE874157A (fr) *	1979-02-14	1979-05-29	Inst Nat Radio Elements	Detecteur ionique
US4488044A (en) *	1981-11-20	1984-12-11	Pittway Corporation	Ionization chamber for smoke detector and the like
AT378431B (de) *	1983-06-30	1985-08-12	Siemens Ag Oesterreich	Probenkammer herkoemmlicher groesse zum einbau eines ionisations-rauchmelder-einsatzes
JPS60135757A (ja) *	1983-12-23	1985-07-19	Hochiki Corp	ガスセンサ
NO158391C (no) *	1985-02-08	1988-08-31	Flaekt Ab	Brannvarslingssystem for oppholdsrom.
EP0405473A3 (en) *	1989-06-28	1991-05-02	Pittway Corporation	Low profile detector with multi-sided source
JP2520357B2 (ja) *	1993-01-29	1996-07-31	三洋電機株式会社	自動洗髪機
JP3714926B2 (ja)	2002-08-22	2005-11-09	ホーチキ株式会社	サンプリング管式煙検知器

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
DE1101370B (de) *	1956-01-27	1961-03-09	Messen Jaschin G A	Einrichtung zur elektrischen Beladung von in einem Luftstrom suspendierten Partikeln mittels radioaktiver Praeparate
FR1185495A (fr) *	1957-10-24	1959-07-31		Dispositif de détection et de contrôle de variations de composition d'un gaz, utilisable notamment comme prédétecteur d'incendie
CH486082A (de) *	1969-05-19	1970-02-15	Cerberus Ag	Ionisationsfeuermelder

1973
- 1973-04-03 CH CH474173A patent/CH554033A/de not_active IP Right Cessation
1974
- 1974-03-15 DE DE2412557A patent/DE2412557C3/de not_active Expired
- 1974-03-18 FR FR7409097A patent/FR2224819B1/fr not_active Expired
- 1974-03-19 ZA ZA00741787A patent/ZA741787B/xx unknown
- 1974-04-02 DK DK182774AA patent/DK141948B/da not_active IP Right Cessation
- 1974-04-02 SE SE7404420A patent/SE389570B/xx unknown
- 1974-04-02 JP JP49036692A patent/JPS503300A/ja active Pending
- 1974-04-02 NO NO741189A patent/NO137666C/no unknown
- 1974-04-02 FI FI1013/74A patent/FI57496C/fi active
- 1974-04-03 GB GB1484074A patent/GB1432531A/en not_active Expired

Also Published As

Publication number	Publication date
NO137666B (no)	1977-12-19
FI57496B (fi)	1980-04-30
NO137666C (no)	1978-04-12
DE2412557A1 (de)	1974-10-24
CH554033A (de)	1974-09-13
DE2412557C3 (de)	1982-02-18
FR2224819A1 (de)	1974-10-31
ZA741787B (en)	1975-03-26
FR2224819B1 (de)	1980-01-04
JPS503300A (de)	1975-01-14
GB1432531A (en)	1976-04-22
DE2412557B2 (de)	1981-06-19
NO741189L (no)	1974-10-04
FI57496C (fi)	1980-08-11
DK141948C (de)	1980-12-01
AU6701374A (en)	1975-09-25
SE389570B (sv)	1976-11-08

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Legal Events

Date	Code	Title	Description
1985-12-16	PBP	Patent lapsed