CH468683A - Feuermelder mit einer elektrischen Rückkopplungsanordnung - Google Patents
Feuermelder mit einer elektrischen RückkopplungsanordnungInfo
- Publication number
- CH468683A CH468683A CH1875166A CH1875166A CH468683A CH 468683 A CH468683 A CH 468683A CH 1875166 A CH1875166 A CH 1875166A CH 1875166 A CH1875166 A CH 1875166A CH 468683 A CH468683 A CH 468683A
- Authority
- CH
- Switzerland
- Prior art keywords
- feedback arrangement
- fire alarms
- electrical feedback
- electrical
- alarms
- 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)
Priority Applications (10)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CH1875166A CH468683A (de) | 1966-12-29 | 1966-12-29 | Feuermelder mit einer elektrischen Rückkopplungsanordnung |
AT93567A AT278597B (de) | 1966-12-29 | 1967-02-01 | Feuermelder mit bistabilen Eigenschaften |
DE19671566687 DE1566687C (de) | 1966-12-29 | 1967-12-08 | Feuermelder |
FR131749A FR1547070A (fr) | 1966-12-29 | 1967-12-11 | Avertisseur d'incendie à propriétés bistables |
BE707959D BE707959A (de) | 1966-12-29 | 1967-12-14 | |
CH1820568A CH486081A (de) | 1966-12-29 | 1967-12-15 | Feuermelder mit einer elektrischen Rückkopplungsanordnung |
US693937A US3559196A (en) | 1966-12-29 | 1967-12-27 | Fire alarm with bistable characteristics |
DK656167AA DK122548B (da) | 1966-12-29 | 1967-12-28 | Brandmelder. |
SE17925/67A SE330659B (de) | 1966-12-29 | 1967-12-28 | |
GB59190/67A GB1200120A (en) | 1966-12-29 | 1967-12-29 | Improvements in or relating to fire alarms |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CH1875166A CH468683A (de) | 1966-12-29 | 1966-12-29 | Feuermelder mit einer elektrischen Rückkopplungsanordnung |
Publications (1)
Publication Number | Publication Date |
---|---|
CH468683A true CH468683A (de) | 1969-02-15 |
Family
ID=4435069
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
CH1875166A CH468683A (de) | 1966-12-29 | 1966-12-29 | Feuermelder mit einer elektrischen Rückkopplungsanordnung |
Country Status (7)
Country | Link |
---|---|
US (1) | US3559196A (de) |
AT (1) | AT278597B (de) |
BE (1) | BE707959A (de) |
CH (1) | CH468683A (de) |
DK (1) | DK122548B (de) |
GB (1) | GB1200120A (de) |
SE (1) | SE330659B (de) |
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE2327497A1 (de) * | 1973-05-30 | 1974-12-12 | Benno Perren | Indikator fuer widerstandsaenderungen mit nachgeschalteter alarmeinrichtung |
DE2546970A1 (de) * | 1975-10-20 | 1977-04-21 | Preussag Ag Feuerschutz | Ionisations-rauchmelder |
DE2726186A1 (de) * | 1977-06-10 | 1978-12-14 | Pan Data Ab | Ueberwachungsvorrichtung |
Families Citing this family (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3946374A (en) * | 1970-08-13 | 1976-03-23 | Sci Systems, Inc. | Rate-of-change combustion and contamination detection device |
JPS4940290Y1 (de) * | 1970-11-19 | 1974-11-05 | ||
US3866195A (en) * | 1973-05-07 | 1975-02-11 | Fire Alert Company | Combustion product detector and method of calibrating |
US4109240A (en) * | 1973-11-26 | 1978-08-22 | Cerberus Ag. | Ionization-type fire sensing system |
DE2707409C2 (de) * | 1977-02-21 | 1985-02-21 | Hartwig Dipl.-Ing. 2409 Scharbeutz Beyersdorf | Ionisationsbrandmelder |
WO2008034080A2 (en) * | 2006-09-15 | 2008-03-20 | Nano-Proprietary, Inc. | Smoke detector |
US9564045B2 (en) * | 2014-04-14 | 2017-02-07 | Stephen D. Ainsworth | Alarm system testing device |
-
1966
- 1966-12-29 CH CH1875166A patent/CH468683A/de unknown
-
1967
- 1967-02-01 AT AT93567A patent/AT278597B/de not_active IP Right Cessation
- 1967-12-14 BE BE707959D patent/BE707959A/xx not_active IP Right Cessation
- 1967-12-27 US US693937A patent/US3559196A/en not_active Expired - Lifetime
- 1967-12-28 DK DK656167AA patent/DK122548B/da not_active IP Right Cessation
- 1967-12-28 SE SE17925/67A patent/SE330659B/xx unknown
- 1967-12-29 GB GB59190/67A patent/GB1200120A/en not_active Expired
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE2327497A1 (de) * | 1973-05-30 | 1974-12-12 | Benno Perren | Indikator fuer widerstandsaenderungen mit nachgeschalteter alarmeinrichtung |
DE2546970A1 (de) * | 1975-10-20 | 1977-04-21 | Preussag Ag Feuerschutz | Ionisations-rauchmelder |
DE2726186A1 (de) * | 1977-06-10 | 1978-12-14 | Pan Data Ab | Ueberwachungsvorrichtung |
Also Published As
Publication number | Publication date |
---|---|
BE707959A (de) | 1968-04-16 |
GB1200120A (en) | 1970-07-29 |
AT278597B (de) | 1970-02-10 |
DK122548B (da) | 1972-03-13 |
DE1566687B1 (de) | 1971-04-01 |
SE330659B (de) | 1970-11-23 |
US3559196A (en) | 1971-01-26 |
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