JPS5619671B2 - - Google Patents
Info
- Publication number
- JPS5619671B2 JPS5619671B2 JP3406574A JP3406574A JPS5619671B2 JP S5619671 B2 JPS5619671 B2 JP S5619671B2 JP 3406574 A JP3406574 A JP 3406574A JP 3406574 A JP3406574 A JP 3406574A JP S5619671 B2 JPS5619671 B2 JP S5619671B2
- Authority
- JP
- Japan
- Legal status (The legal status 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 status listed.)
- Expired
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)
- Fire Alarms (AREA)
- Other Investigation Or Analysis Of Materials By Electrical Means (AREA)
- Alarm Systems (AREA)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CH462173A CH570016A5 (en) | 1973-03-30 | 1973-03-30 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS49131099A JPS49131099A (en) | 1974-12-16 |
| JPS5619671B2 true JPS5619671B2 (en) | 1981-05-08 |
Family
ID=4279532
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP3406574A Expired JPS5619671B2 (en) | 1973-03-30 | 1974-03-28 |
Country Status (17)
| Country | Link |
|---|---|
| US (1) | US3872449A (en) |
| JP (1) | JPS5619671B2 (en) |
| AT (1) | AT340807B (en) |
| BE (1) | BE812331A (en) |
| CA (1) | CA1063260A (en) |
| CH (1) | CH570016A5 (en) |
| DE (1) | DE2408374B2 (en) |
| DK (1) | DK137099B (en) |
| ES (1) | ES425125A1 (en) |
| FI (1) | FI55420C (en) |
| FR (1) | FR2223766B1 (en) |
| GB (1) | GB1430035A (en) |
| IT (1) | IT1014554B (en) |
| NL (1) | NL7403973A (en) |
| NO (1) | NO136383C (en) |
| SE (1) | SE389569B (en) |
| ZA (1) | ZA741754B (en) |
Families Citing this family (17)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5512635B2 (en) * | 1972-07-26 | 1980-04-03 | ||
| CH576175A5 (en) * | 1974-12-19 | 1976-05-31 | Cerberus Ag | |
| JPS5737265Y2 (en) * | 1976-07-07 | 1982-08-17 | ||
| US4131888A (en) * | 1976-08-18 | 1978-12-26 | American District Telegraph Company | Dual projected-beam smoke detector |
| US4091363A (en) * | 1977-01-03 | 1978-05-23 | Pittway Corporation | Self-contained fire detector with interconnection circuitry |
| FR2386874A1 (en) * | 1977-04-08 | 1978-11-03 | Gamma Electronic | IONIZATION SMOKE DETECTOR ASSOCIATED WITH AN ELECTRONIC VELOCIMETRIC MEASUREMENT CIRCUIT |
| US4222046A (en) * | 1978-07-31 | 1980-09-09 | Honeywell Inc. | Abnormal condition responsive means with periodic high sensitivity |
| US4250500A (en) * | 1979-10-22 | 1981-02-10 | Rca Corporation | Smoke detector |
| CA1148279A (en) * | 1979-12-14 | 1983-06-14 | Andreas Scheidweiler | Ionization smoke detector with increased operational reliability |
| DE3127324A1 (en) * | 1981-07-10 | 1983-01-27 | Siemens AG, 1000 Berlin und 8000 München | METHOD AND ARRANGEMENT FOR INCREASING THE SENSITIVITY AND EMERGENCY SAFETY IN A DANGER, IN PARTICULAR FIRE DETECTING SYSTEM |
| US4539488A (en) * | 1981-11-30 | 1985-09-03 | Zenith Electronics Corporation | Pulse wave to parabola wave converter |
| JPS60126798A (en) * | 1983-12-13 | 1985-07-06 | ニッタン株式会社 | Environmental abnormality detector |
| US5019805A (en) * | 1989-02-03 | 1991-05-28 | Flash-Alert Inc. | Smoke detector with strobed visual alarm and remote alarm coupling |
| US6188318B1 (en) | 1999-06-29 | 2001-02-13 | Pittway Corp. | Dual-technology intrusion detector with pet immunity |
| CN102455288B (en) * | 2010-10-15 | 2014-10-15 | 西门子公司 | Apparatus for carrying out calibration on photoelectric signal path of sensor device through online signal level monitoring |
| DE102014019172B4 (en) | 2014-12-17 | 2023-12-07 | Elmos Semiconductor Se | Device and method for distinguishing between solid objects, cooking fumes and smoke using a compensating optical measuring system |
| DE102014019773B4 (en) | 2014-12-17 | 2023-12-07 | Elmos Semiconductor Se | Device and method for distinguishing between solid objects, cooking fumes and smoke using the display of a mobile telephone |
Family Cites Families (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2735007A (en) * | 1956-02-14 | Time-base generator | ||
| US2811711A (en) * | 1951-05-19 | 1957-10-29 | Electronics Corp America | Fire method and apparatus |
| US3582676A (en) * | 1968-09-24 | 1971-06-01 | Bendix Corp | Pulse length normalizing and short pulse eliminating circuit |
| US3531692A (en) * | 1969-03-03 | 1970-09-29 | Combustion Eng | Activity detector having increased accuracy of response |
| JPS482587U (en) * | 1971-05-25 | 1973-01-12 |
-
1973
- 1973-03-30 CH CH462173A patent/CH570016A5/xx not_active IP Right Cessation
-
1974
- 1974-02-21 DE DE2408374A patent/DE2408374B2/en not_active Ceased
- 1974-02-21 AT AT144074A patent/AT340807B/en not_active IP Right Cessation
- 1974-03-08 US US449287A patent/US3872449A/en not_active Expired - Lifetime
- 1974-03-14 BE BE142033A patent/BE812331A/en not_active IP Right Cessation
- 1974-03-14 FR FR7408640A patent/FR2223766B1/fr not_active Expired
- 1974-03-18 ZA ZA00741754A patent/ZA741754B/en unknown
- 1974-03-25 NL NL7403973A patent/NL7403973A/xx unknown
- 1974-03-27 NO NO741081A patent/NO136383C/en unknown
- 1974-03-28 JP JP3406574A patent/JPS5619671B2/ja not_active Expired
- 1974-03-28 FI FI960/74A patent/FI55420C/en active
- 1974-03-28 CA CA196,310A patent/CA1063260A/en not_active Expired
- 1974-03-29 GB GB1412074A patent/GB1430035A/en not_active Expired
- 1974-03-29 DK DK175474AA patent/DK137099B/en not_active IP Right Cessation
- 1974-03-29 SE SE7404260A patent/SE389569B/en unknown
- 1974-03-30 ES ES425125A patent/ES425125A1/en not_active Expired
- 1974-04-08 IT IT20649/74A patent/IT1014554B/en active
Also Published As
| Publication number | Publication date |
|---|---|
| BE812331A (en) | 1974-07-01 |
| CA1063260A (en) | 1979-09-25 |
| DE2408374B2 (en) | 1978-06-01 |
| FR2223766B1 (en) | 1978-12-01 |
| ES425125A1 (en) | 1976-06-16 |
| DK137099B (en) | 1978-01-16 |
| NO136383C (en) | 1977-08-31 |
| ZA741754B (en) | 1975-01-29 |
| DE2408374A1 (en) | 1974-10-17 |
| ATA144074A (en) | 1977-04-15 |
| SE389569B (en) | 1976-11-08 |
| NO136383B (en) | 1977-05-16 |
| AU6689674A (en) | 1975-09-25 |
| GB1430035A (en) | 1976-03-31 |
| NO741081L (en) | 1974-10-01 |
| CH570016A5 (en) | 1975-11-28 |
| IT1014554B (en) | 1977-04-30 |
| NL7403973A (en) | 1974-10-02 |
| AT340807B (en) | 1978-01-10 |
| JPS49131099A (en) | 1974-12-16 |
| FI55420C (en) | 1979-07-10 |
| DK137099C (en) | 1978-06-12 |
| US3872449A (en) | 1975-03-18 |
| FI55420B (en) | 1979-03-30 |
| FR2223766A1 (en) | 1974-10-25 |