BR7305317D0 - FIRE ALARM APPLIANCE OF THE TYPE THAT REACTS THE ENVIRONMENT IONIZATION - Google Patents
FIRE ALARM APPLIANCE OF THE TYPE THAT REACTS THE ENVIRONMENT IONIZATIONInfo
- Publication number
- BR7305317D0 BR7305317D0 BR5317/73A BR531773A BR7305317D0 BR 7305317 D0 BR7305317 D0 BR 7305317D0 BR 5317/73 A BR5317/73 A BR 5317/73A BR 531773 A BR531773 A BR 531773A BR 7305317 D0 BR7305317 D0 BR 7305317D0
- Authority
- BR
- Brazil
- Prior art keywords
- reacts
- type
- fire alarm
- alarm appliance
- environment ionization
- 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
-
- G—PHYSICS
- G08—SIGNALLING
- G08B—SIGNALLING OR CALLING SYSTEMS; ORDER TELEGRAPHS; ALARM SYSTEMS
- G08B25/00—Alarm systems in which the location of the alarm condition is signalled to a central station, e.g. fire or police telegraphic systems
- G08B25/01—Alarm systems in which the location of the alarm condition is signalled to a central station, e.g. fire or police telegraphic systems characterised by the transmission medium
- G08B25/04—Alarm systems in which the location of the alarm condition is signalled to a central station, e.g. fire or police telegraphic systems characterised by the transmission medium using a single signalling line, e.g. in a closed loop
Landscapes
- Business, Economics & Management (AREA)
- Emergency Management (AREA)
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Chemical & Material Sciences (AREA)
- Analytical Chemistry (AREA)
- Fire-Detection Mechanisms (AREA)
- Fire Alarms (AREA)
- Printing Plates And Materials Therefor (AREA)
- Other Investigation Or Analysis Of Materials By Electrical Means (AREA)
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CH1065572 | 1972-07-17 |
Publications (1)
Publication Number | Publication Date |
---|---|
BR7305317D0 true BR7305317D0 (en) | 1974-08-22 |
Family
ID=4365446
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
BR5317/73A BR7305317D0 (en) | 1972-07-17 | 1973-07-16 | FIRE ALARM APPLIANCE OF THE TYPE THAT REACTS THE ENVIRONMENT IONIZATION |
Country Status (19)
Country | Link |
---|---|
US (1) | US3909813A (en) |
JP (1) | JPS4970691A (en) |
AT (1) | AT339777B (en) |
AU (1) | AU474603B2 (en) |
BE (1) | BE801719A (en) |
BR (1) | BR7305317D0 (en) |
CA (1) | CA1018680A (en) |
CH (1) | CH547532A (en) |
DE (1) | DE2328872C3 (en) |
DK (1) | DK138714B (en) |
ES (1) | ES415905A1 (en) |
FI (1) | FI59498C (en) |
FR (1) | FR2193224B1 (en) |
GB (1) | GB1412164A (en) |
HK (1) | HK57380A (en) |
IT (1) | IT988800B (en) |
NO (1) | NO136269C (en) |
SE (1) | SE392357B (en) |
ZA (1) | ZA734853B (en) |
Families Citing this family (20)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5617815Y2 (en) * | 1974-07-10 | 1981-04-24 | ||
JPS5150786A (en) * | 1974-10-29 | 1976-05-04 | Mitsubishi Electric Corp | IONKASHIKIKE MURITANCHIKI |
JPS52142999A (en) * | 1976-05-24 | 1977-11-29 | Nohmi Bosai Kogyo Co Ltd | Fire alarm facility |
DE2707409C2 (en) * | 1977-02-21 | 1985-02-21 | Hartwig Dipl.-Ing. 2409 Scharbeutz Beyersdorf | Ionization fire detector |
US4207558A (en) * | 1978-04-03 | 1980-06-10 | Pittway Corporation | Interconnection circuit for a plurality of alarm units |
USRE30620E (en) * | 1978-07-03 | 1981-05-19 | P. R. Mallory & Co. Inc. | High output smoke and heat detector alarm system utilizing a piezoelectric transducer and a voltage doubling means |
CH629905A5 (en) * | 1978-07-17 | 1982-05-14 | Cerberus Ag | GAS AND / OR FIRE DETECTING SYSTEM. |
JPS5555752U (en) * | 1978-10-12 | 1980-04-15 | ||
US4223303A (en) * | 1978-12-11 | 1980-09-16 | General Electric Company | Alarm devices for interconnected multi-device systems |
US4401978A (en) * | 1979-02-21 | 1983-08-30 | The Gamewell Corporation | Combination detector |
EP0039761A3 (en) * | 1980-05-09 | 1981-11-25 | Cerberus Ag | Fire annunciating arrangement and method |
JPH079680B2 (en) * | 1985-04-01 | 1995-02-01 | ホーチキ株式会社 | Analog fire alarm |
CH669859A5 (en) * | 1986-06-03 | 1989-04-14 | Cerberus Ag | |
EP0338218B1 (en) * | 1988-03-30 | 1993-09-15 | Cerberus Ag | Early fire detection method |
JPH0259461U (en) * | 1988-10-21 | 1990-05-01 | ||
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 |
US7068177B2 (en) * | 2002-09-19 | 2006-06-27 | Honeywell International, Inc. | Multi-sensor device and methods for fire detection |
US20080030352A1 (en) * | 2006-02-27 | 2008-02-07 | Thorn Security Limited | Methods and systems for gas detection |
WO2015054278A1 (en) | 2013-10-07 | 2015-04-16 | Google Inc. | Smart-home hazard detector providing useful follow up communications to detection events |
US9685061B2 (en) * | 2015-05-20 | 2017-06-20 | Google Inc. | Event prioritization and user interfacing for hazard detection in multi-room smart-home environment |
Family Cites Families (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3665441A (en) * | 1970-09-14 | 1972-05-23 | Gen Signal Corp | Method and apparatus for detecting aerosols |
-
1972
- 1972-07-17 CH CH1065572A patent/CH547532A/en not_active IP Right Cessation
-
1973
- 1973-05-24 AT AT456073A patent/AT339777B/en not_active IP Right Cessation
- 1973-05-30 IT IT24820/73A patent/IT988800B/en active
- 1973-06-06 DE DE2328872A patent/DE2328872C3/en not_active Expired
- 1973-06-14 ES ES415905A patent/ES415905A1/en not_active Expired
- 1973-06-15 FI FI1943/73A patent/FI59498C/en active
- 1973-06-27 FR FR7323459A patent/FR2193224B1/fr not_active Expired
- 1973-06-28 US US374310A patent/US3909813A/en not_active Expired - Lifetime
- 1973-06-29 BE BE132959A patent/BE801719A/en not_active IP Right Cessation
- 1973-07-11 AU AU57987/73A patent/AU474603B2/en not_active Expired
- 1973-07-13 CA CA176,433A patent/CA1018680A/en not_active Expired
- 1973-07-16 BR BR5317/73A patent/BR7305317D0/en unknown
- 1973-07-16 NO NO2887/73A patent/NO136269C/en unknown
- 1973-07-16 DK DK393473AA patent/DK138714B/en not_active IP Right Cessation
- 1973-07-16 SE SE7309920A patent/SE392357B/en unknown
- 1973-07-17 GB GB3409373A patent/GB1412164A/en not_active Expired
- 1973-07-17 JP JP48080012A patent/JPS4970691A/ja active Pending
- 1973-07-17 ZA ZA734853A patent/ZA734853B/en unknown
-
1980
- 1980-10-09 HK HK573/80A patent/HK57380A/en unknown
Also Published As
Publication number | Publication date |
---|---|
IT988800B (en) | 1975-04-30 |
AU474603B2 (en) | 1976-07-29 |
HK57380A (en) | 1980-10-16 |
FR2193224A1 (en) | 1974-02-15 |
SE392357B (en) | 1977-03-21 |
US3909813A (en) | 1975-09-30 |
DE2328872C3 (en) | 1981-01-08 |
DE2328872A1 (en) | 1974-01-31 |
CA1018680A (en) | 1977-10-04 |
FI59498B (en) | 1981-04-30 |
NO136269B (en) | 1977-05-02 |
FI59498C (en) | 1981-08-10 |
JPS4970691A (en) | 1974-07-09 |
FR2193224B1 (en) | 1978-12-29 |
ZA734853B (en) | 1974-06-26 |
DK138714B (en) | 1978-10-16 |
AU5798673A (en) | 1975-01-16 |
DE2328872B2 (en) | 1980-05-14 |
BE801719A (en) | 1973-10-15 |
GB1412164A (en) | 1975-10-29 |
AT339777B (en) | 1977-11-10 |
CH547532A (en) | 1974-03-29 |
DK138714C (en) | 1979-03-19 |
NO136269C (en) | 1977-08-17 |
ATA456073A (en) | 1977-02-15 |
ES415905A1 (en) | 1976-02-01 |
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