IT7947747A0 - Perfezionamento nei dispositivi di segnalazione in particolare di incendi - Google Patents
Perfezionamento nei dispositivi di segnalazione in particolare di incendiInfo
- Publication number
- IT7947747A0 IT7947747A0 IT7947747A IT4774779A IT7947747A0 IT 7947747 A0 IT7947747 A0 IT 7947747A0 IT 7947747 A IT7947747 A IT 7947747A IT 4774779 A IT4774779 A IT 4774779A IT 7947747 A0 IT7947747 A0 IT 7947747A0
- Authority
- IT
- Italy
- Prior art keywords
- fire
- improvement
- signaling devices
- signaling
- devices
- Prior art date
Links
- 230000011664 signaling Effects 0.000 title 1
Classifications
-
- G—PHYSICS
- G08—SIGNALLING
- G08B—SIGNALLING OR CALLING SYSTEMS; ORDER TELEGRAPHS; ALARM SYSTEMS
- G08B29/00—Checking or monitoring of signalling or alarm systems; Prevention or correction of operating errors, e.g. preventing unauthorised operation
- G08B29/18—Prevention or correction of operating errors
- G08B29/20—Calibration, including self-calibrating arrangements
- G08B29/24—Self-calibration, e.g. compensating for environmental drift or ageing of components
-
- G—PHYSICS
- G08—SIGNALLING
- G08B—SIGNALLING OR CALLING SYSTEMS; ORDER TELEGRAPHS; ALARM SYSTEMS
- G08B17/00—Fire alarms; Alarms responsive to explosion
-
- 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
-
- 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
-
- G—PHYSICS
- G08—SIGNALLING
- G08B—SIGNALLING OR CALLING SYSTEMS; ORDER TELEGRAPHS; ALARM SYSTEMS
- G08B29/00—Checking or monitoring of signalling or alarm systems; Prevention or correction of operating errors, e.g. preventing unauthorised operation
- G08B29/02—Monitoring continuously signalling or alarm systems
- G08B29/04—Monitoring of the detection circuits
- G08B29/043—Monitoring of the detection circuits of fire detection circuits
Landscapes
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Business, Economics & Management (AREA)
- Emergency Management (AREA)
- Chemical & Material Sciences (AREA)
- Computer Security & Cryptography (AREA)
- Engineering & Computer Science (AREA)
- Analytical Chemistry (AREA)
- Alarm Systems (AREA)
- Fire Alarms (AREA)
- Fire-Detection Mechanisms (AREA)
- Emergency Alarm Devices (AREA)
- Burglar Alarm Systems (AREA)
- Measurement Of Current Or Voltage (AREA)
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US05/872,444 US4302753A (en) | 1978-01-26 | 1978-01-26 | Multi-function combustion detecting device |
Publications (2)
Publication Number | Publication Date |
---|---|
IT7947747A0 true IT7947747A0 (it) | 1979-01-23 |
IT1114062B IT1114062B (it) | 1986-01-27 |
Family
ID=25359588
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
IT47747/79A IT1114062B (it) | 1978-01-26 | 1979-01-23 | Perfezionamento nei dispositivi di segnalazione in particolare di incendi |
Country Status (7)
Country | Link |
---|---|
US (1) | US4302753A (it) |
JP (1) | JPS54161298A (it) |
AU (1) | AU509350B2 (it) |
CA (1) | CA1115372A (it) |
DE (1) | DE2903041C2 (it) |
GB (1) | GB2013383B (it) |
IT (1) | IT1114062B (it) |
Families Citing this family (27)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE3004753C2 (de) * | 1980-02-08 | 1983-12-22 | Hartwig Dipl.-Ing. 2409 Scharbeutz Beyersdorf | Brandmeldeeinrichtung |
US4471346A (en) * | 1981-06-02 | 1984-09-11 | Eberhard Faber, Inc. | Smoke detector |
JPS59923U (ja) * | 1982-06-24 | 1984-01-06 | 原 大雄 | 火災警報器付温度計 |
JPS5916431U (ja) * | 1982-07-26 | 1984-01-31 | 株式会社ほくさん | 天袋ユニツト |
US4595914A (en) * | 1983-04-11 | 1986-06-17 | Pittway Corporation | Self-testing combustion products detector |
GB2200232A (en) * | 1986-05-13 | 1988-07-27 | Bryan Allsop | Battery powered temperature alarm |
CH669859A5 (it) * | 1986-06-03 | 1989-04-14 | Cerberus Ag | |
FR2601483B1 (fr) * | 1986-07-11 | 1988-09-16 | Ferco Int Usine Ferrures | Installation de surveillance comportant des detecteurs alimentes par une boucle |
US4761631A (en) * | 1987-05-14 | 1988-08-02 | Hwang Shih Ming | Main battery disconnection alarm and headlight warning circuit |
US4904988A (en) * | 1989-03-06 | 1990-02-27 | Nesbit Charles E | Toy with a smoke detector |
EP0423489A1 (de) * | 1989-09-15 | 1991-04-24 | Cerberus Ag | Brandmeldeanlage mit Ueberwachung |
US5543777A (en) * | 1993-07-12 | 1996-08-06 | Detection Systems, Inc. | Smoke detector with individual sensitivity calibration and monitoring |
US5552765A (en) * | 1993-07-12 | 1996-09-03 | Detection Systems, Inc. | Smoke detector with individually stored range of acceptable sensitivity |
US5546074A (en) * | 1993-08-19 | 1996-08-13 | Sentrol, Inc. | Smoke detector system with self-diagnostic capabilities and replaceable smoke intake canopy |
US6501810B1 (en) | 1998-10-13 | 2002-12-31 | Agere Systems Inc. | Fast frame synchronization |
US5969600A (en) * | 1997-02-19 | 1999-10-19 | Ranco Inc. Of Delware | Dangerous condition warning device incorporating a time-limited hush mode of operation to defeat an audible low battery warning signal |
US5886638A (en) * | 1997-02-19 | 1999-03-23 | Ranco Inc. Of Delaware | Method and apparatus for testing a carbon monoxide sensor |
US5966078A (en) * | 1997-02-19 | 1999-10-12 | Ranco Inc. | Battery saving circuit for a dangerous condition warning device |
US5912626A (en) * | 1997-02-19 | 1999-06-15 | Soderlund; Ernest E. | Dangerous condition warning device incorporating provision for permanently retaining printed protocol instructions |
US5966079A (en) * | 1997-02-19 | 1999-10-12 | Ranco Inc. Of Delaware | Visual indicator for identifying which of a plurality of dangerous condition warning devices has issued an audible low battery warning signal |
US6753786B1 (en) | 2000-08-11 | 2004-06-22 | Walter Kidde Portable Equipment, Inc. | Microprocessor-based combination smoke and carbon monoxide detector having intelligent hush feature |
EP1803102B1 (en) | 2004-10-18 | 2011-04-06 | Walter Kidde Portable Equipment, Inc. | Frequency communications scheme in life safety devices |
CA2584498C (en) | 2004-10-18 | 2013-12-10 | Walter Kidde Portable Equipment, Inc. | Low battery warning silencing in life safety devices |
ATE461507T1 (de) * | 2004-10-18 | 2010-04-15 | Kidde Portable Equipment Inc | Gateway-einrichtung zur verbindung eines systems mit live-safety-einrichtungen |
US20110057806A1 (en) * | 2009-09-09 | 2011-03-10 | Universal Security Instruments, Inc | Hazardous Condition Detector with Hardware Hush |
LT5724B (lt) | 2010-07-02 | 2011-04-26 | Valstybinis mokslinių tyrimų institutas Fizinių ir technologijos mokslų centras | Signalizacijos įrenginys nuo mechaninio poveikio |
CN110797594B (zh) * | 2019-11-07 | 2021-03-26 | 应急管理部天津消防研究所 | 一种电动车动力电池火灾量化预警及显示方法 |
Family Cites Families (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3879718A (en) * | 1970-09-16 | 1975-04-22 | Gordon A Roberts | Smoke detection unit with dual purpose alarm circuit |
US3774186A (en) * | 1972-03-15 | 1973-11-20 | El Sig Lab Inc | Smoke detector failure alarm |
GB1397589A (en) * | 1972-11-30 | 1975-06-11 | Statitrol Corp | Low battery output detection circuits |
DE2327497C3 (de) * | 1973-05-30 | 1981-12-24 | Benno 5430 Wettingen Aargau Perren | Melder für Widerstandsänderungen mit nachgeschalteter Alarmeinrichtung |
US3899732A (en) * | 1973-08-16 | 1975-08-12 | Statitrol Corp | Method and apparatus for monitoring battery energy level |
CA1019077A (en) * | 1974-01-07 | 1977-10-11 | Wilbur L. Ogden | Fire detector |
US4081795A (en) * | 1976-09-09 | 1978-03-28 | Statitrol Corporation | Apparatus and method for detecting the occurrence of an alarm condition |
-
1978
- 1978-01-26 US US05/872,444 patent/US4302753A/en not_active Expired - Lifetime
-
1979
- 1979-01-05 CA CA319,188A patent/CA1115372A/en not_active Expired
- 1979-01-23 IT IT47747/79A patent/IT1114062B/it active
- 1979-01-25 GB GB7902701A patent/GB2013383B/en not_active Expired
- 1979-01-25 JP JP765879A patent/JPS54161298A/ja active Granted
- 1979-01-25 AU AU43652/79A patent/AU509350B2/en not_active Ceased
- 1979-01-26 DE DE2903041A patent/DE2903041C2/de not_active Expired
Also Published As
Publication number | Publication date |
---|---|
JPS5622038B2 (it) | 1981-05-22 |
DE2903041C2 (de) | 1983-12-01 |
GB2013383B (en) | 1982-08-04 |
AU509350B2 (en) | 1980-05-08 |
US4302753A (en) | 1981-11-24 |
IT1114062B (it) | 1986-01-27 |
CA1115372A (en) | 1981-12-29 |
AU4365279A (en) | 1979-08-02 |
JPS54161298A (en) | 1979-12-20 |
DE2903041A1 (de) | 1979-08-02 |
GB2013383A (en) | 1979-08-08 |
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