SE7909517L - Detektor samt sett att styra denna - Google Patents
Detektor samt sett att styra dennaInfo
- Publication number
- SE7909517L SE7909517L SE7909517A SE7909517A SE7909517L SE 7909517 L SE7909517 L SE 7909517L SE 7909517 A SE7909517 A SE 7909517A SE 7909517 A SE7909517 A SE 7909517A SE 7909517 L SE7909517 L SE 7909517L
- Authority
- SE
- Sweden
- Prior art keywords
- ionization current
- ionization
- operational amplifier
- analogue signal
- alarm conditions
- Prior art date
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
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)
- Glass Compositions (AREA)
- Mechanical Treatment Of Semiconductor (AREA)
- Spectrometry And Color Measurement (AREA)
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
ZA786519A ZA786519B (en) | 1978-11-20 | 1978-11-20 | Detector |
Publications (2)
Publication Number | Publication Date |
---|---|
SE7909517L true SE7909517L (sv) | 1980-05-21 |
SE444240B SE444240B (sv) | 1986-03-24 |
Family
ID=25573664
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
SE7909517A SE444240B (sv) | 1978-11-20 | 1979-11-19 | Detektor av joniseringstyp samt sett att manovrera en branddetektor av joniseringstyp |
Country Status (20)
Country | Link |
---|---|
US (1) | US4423411A (sv) |
JP (1) | JPS5572294A (sv) |
AU (1) | AU534265B2 (sv) |
BE (1) | BE880166A (sv) |
BR (1) | BR7907533A (sv) |
CA (1) | CA1148278A (sv) |
CH (1) | CH647879A5 (sv) |
DE (1) | DE2946507C2 (sv) |
DK (1) | DK156785C (sv) |
FR (1) | FR2441892A1 (sv) |
GB (1) | GB2041534B (sv) |
IE (1) | IE48643B1 (sv) |
IT (1) | IT1124984B (sv) |
LU (1) | LU81912A1 (sv) |
NL (1) | NL182989C (sv) |
NO (1) | NO151062C (sv) |
PH (1) | PH21359A (sv) |
SE (1) | SE444240B (sv) |
ZA (1) | ZA786519B (sv) |
ZM (1) | ZM8979A1 (sv) |
Families Citing this family (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE3904979A1 (de) * | 1989-02-18 | 1990-08-23 | Beyersdorf Hartwig | Verfahren zum betrieb eines ionisationsrauchmelders und ionisationsrauchmelder |
US5189399A (en) * | 1989-02-18 | 1993-02-23 | Hartwig Beyersdorf | Method of operating an ionization smoke alarm and ionization smoke alarm |
US4904988A (en) * | 1989-03-06 | 1990-02-27 | Nesbit Charles E | Toy with a smoke detector |
US5563578A (en) * | 1993-07-26 | 1996-10-08 | Isenstein; Robert J. | Detection of hazardous gas leakage |
PL2265867T3 (pl) * | 2008-03-07 | 2019-04-30 | Bertelli & Partners Srl | Ulepszony sposób i urządzenie do wykrywania płomienia w palniku działającym na paliwie stałym, płynnym lub gazowym |
DE102014019172B4 (de) | 2014-12-17 | 2023-12-07 | Elmos Semiconductor Se | Vorrichtung und Verfahren zur Unterscheidung von festen Objekten, Kochdunst und Rauch mit einem kompensierenden optischen Messsystem |
DE102014019773B4 (de) | 2014-12-17 | 2023-12-07 | Elmos Semiconductor Se | Vorrichtung und Verfahren zur Unterscheidung von festen Objekten, Kochdunst und Rauch mittels des Displays eines Mobiltelefons |
Family Cites Families (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2954474A (en) * | 1955-04-01 | 1960-09-27 | Nat Res Corp | Measuring |
CH489070A (de) * | 1969-03-27 | 1970-04-15 | Cerberus Ag Werk Fuer Elektron | Ionisationsfeuermelder |
JPS529998B1 (sv) * | 1969-04-25 | 1977-03-19 | ||
NO129270B (sv) * | 1970-05-16 | 1974-03-18 | Preussag Ag Feuerschutz | |
US3964036A (en) * | 1972-11-15 | 1976-06-15 | Hochiki Corporation | Ionization smoke detector co-used to issue fire alarm and detect ambient atmosphere |
JPS5299099A (en) * | 1976-02-16 | 1977-08-19 | Nohmi Bosai Kogyo Co Ltd | Fire detector |
DE2711457C2 (de) * | 1977-03-16 | 1985-06-27 | Siemens AG, 1000 Berlin und 8000 München | Ionisationsbrandmelder |
-
1978
- 1978-11-20 ZA ZA786519A patent/ZA786519B/xx unknown
-
1979
- 1979-11-14 IE IE2181/79A patent/IE48643B1/en not_active IP Right Cessation
- 1979-11-15 NO NO79793696A patent/NO151062C/no unknown
- 1979-11-15 ZM ZM89/79A patent/ZM8979A1/xx unknown
- 1979-11-16 IT IT27341/79A patent/IT1124984B/it active
- 1979-11-17 DE DE2946507A patent/DE2946507C2/de not_active Expired
- 1979-11-19 NL NLAANVRAGE7908429,A patent/NL182989C/xx not_active IP Right Cessation
- 1979-11-19 JP JP14990779A patent/JPS5572294A/ja active Pending
- 1979-11-19 CH CH10287/79A patent/CH647879A5/de not_active IP Right Cessation
- 1979-11-19 GB GB7939915A patent/GB2041534B/en not_active Expired
- 1979-11-19 LU LU81912A patent/LU81912A1/fr unknown
- 1979-11-19 DK DK490879A patent/DK156785C/da active
- 1979-11-19 CA CA000340127A patent/CA1148278A/en not_active Expired
- 1979-11-19 SE SE7909517A patent/SE444240B/sv not_active IP Right Cessation
- 1979-11-19 AU AU52947/79A patent/AU534265B2/en not_active Ceased
- 1979-11-20 FR FR7928549A patent/FR2441892A1/fr active Granted
- 1979-11-20 BR BR7907533A patent/BR7907533A/pt not_active IP Right Cessation
- 1979-11-20 PH PH23306A patent/PH21359A/en unknown
- 1979-11-20 BE BE0/198211A patent/BE880166A/fr not_active IP Right Cessation
-
1981
- 1981-09-02 US US06/298,804 patent/US4423411A/en not_active Expired - Fee Related
Also Published As
Publication number | Publication date |
---|---|
FR2441892A1 (fr) | 1980-06-13 |
FR2441892B1 (sv) | 1983-02-11 |
AU534265B2 (en) | 1984-01-12 |
ZA786519B (en) | 1980-02-27 |
BE880166A (fr) | 1980-03-17 |
NL7908429A (nl) | 1980-05-22 |
CA1148278A (en) | 1983-06-14 |
NO151062C (no) | 1985-01-30 |
AU5294779A (en) | 1980-06-12 |
JPS5572294A (en) | 1980-05-30 |
IT1124984B (it) | 1986-05-14 |
NO793696L (no) | 1980-05-21 |
DE2946507C2 (de) | 1986-04-10 |
DE2946507A1 (de) | 1980-05-29 |
GB2041534B (en) | 1983-06-15 |
IE48643B1 (en) | 1985-04-03 |
IE792181L (en) | 1980-05-20 |
DK156785C (da) | 1990-03-05 |
NL182989C (nl) | 1988-06-16 |
NO151062B (no) | 1984-10-22 |
ZM8979A1 (en) | 1981-08-21 |
US4423411A (en) | 1983-12-27 |
BR7907533A (pt) | 1980-08-05 |
DK156785B (da) | 1989-10-02 |
CH647879A5 (de) | 1985-02-15 |
LU81912A1 (fr) | 1980-04-22 |
NL182989B (nl) | 1988-01-18 |
IT7927341A0 (it) | 1979-11-16 |
DK490879A (da) | 1980-05-21 |
GB2041534A (en) | 1980-09-10 |
SE444240B (sv) | 1986-03-24 |
PH21359A (en) | 1987-10-15 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
NUG | Patent has lapsed |
Ref document number: 7909517-0 Effective date: 19940610 Format of ref document f/p: F |