HK11577A - Ionisation fire alarm - Google Patents
Ionisation fire alarmInfo
- Publication number
- HK11577A HK11577A HK115/77A HK11577A HK11577A HK 11577 A HK11577 A HK 11577A HK 115/77 A HK115/77 A HK 115/77A HK 11577 A HK11577 A HK 11577A HK 11577 A HK11577 A HK 11577A
- Authority
- HK
- Hong Kong
- Prior art keywords
- fire alarm
- ionisation
- ionisation fire
- alarm
- fire
- 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
- G08B17/113—Constructional details
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)
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CH760669A CH486082A (de) | 1969-05-19 | 1969-05-19 | Ionisationsfeuermelder |
Publications (1)
Publication Number | Publication Date |
---|---|
HK11577A true HK11577A (en) | 1977-03-11 |
Family
ID=4327756
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
HK115/77A HK11577A (en) | 1969-05-19 | 1977-03-03 | Ionisation fire alarm |
Country Status (10)
Country | Link |
---|---|
US (1) | US3710110A (es) |
CH (1) | CH486082A (es) |
DE (1) | DE2023954C3 (es) |
FR (1) | FR2047853A5 (es) |
GB (1) | GB1250296A (es) |
HK (1) | HK11577A (es) |
NL (1) | NL168975C (es) |
NO (1) | NO125512B (es) |
SE (1) | SE346173B (es) |
YU (1) | YU32508B (es) |
Families Citing this family (18)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CH554033A (de) * | 1973-04-03 | 1974-09-13 | Cerberus Ag | Iomisations-feuermelde-einrichtung. |
CH551057A (de) * | 1973-04-17 | 1974-06-28 | Cerberus Ag | Ionisationsfeuermelder. |
US3832552A (en) * | 1973-06-22 | 1974-08-27 | Honeywell Inc | Dual chamber ionization smoke detector |
US3849685A (en) * | 1973-06-22 | 1974-11-19 | Honeywell Inc | Ionization chamber with recessed radioactive body |
JPS5552558Y2 (es) * | 1975-02-10 | 1980-12-05 | ||
BE831296A (fr) * | 1975-07-11 | 1975-11-03 | Detecteur ionique | |
CH600563A5 (es) * | 1976-11-29 | 1978-06-15 | Cerberus Ag | |
US4185197A (en) * | 1978-01-13 | 1980-01-22 | General Electric Company | Arrangement for inhibiting the effect of extraneous electric fields on an improved ionization smoke detector |
US4327289A (en) * | 1978-12-26 | 1982-04-27 | Solomon Elias E | Ionization detector calibration |
US4286159A (en) * | 1979-04-10 | 1981-08-25 | Hochiki Corporation | Detector coupling mechanism |
AT378431B (de) * | 1983-06-30 | 1985-08-12 | Siemens Ag Oesterreich | Probenkammer herkoemmlicher groesse zum einbau eines ionisations-rauchmelder-einsatzes |
GB8529436D0 (en) * | 1985-11-29 | 1986-01-08 | Gent Ltd | Fire detector |
US4963792A (en) * | 1987-03-04 | 1990-10-16 | Parker William P | Self contained gas discharge device |
US4754199A (en) * | 1987-03-04 | 1988-06-28 | Parker William P | Self contained gas discharge display device |
US4937562A (en) * | 1987-12-26 | 1990-06-26 | Hochiki Corp. | Moisture-proof ionization smoke detector |
JPH01102991U (es) * | 1987-12-26 | 1989-07-12 | ||
DE4402518C2 (de) * | 1994-01-28 | 1997-10-23 | Preussag Ag Minimax | Ionisationsrauchmelder |
US6675005B2 (en) | 1999-03-25 | 2004-01-06 | Zenith Electronics Corporation | Printed single balanced downconverter mixer |
Family Cites Families (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3231778A (en) * | 1963-06-20 | 1966-01-25 | Sylvania Electric Prod | Signal barrier |
LU48167A1 (es) * | 1965-03-11 | 1966-09-12 | Applic Electroniques Ets |
-
1969
- 1969-05-19 CH CH760669A patent/CH486082A/de not_active IP Right Cessation
-
1970
- 1970-05-11 NO NO1771/70A patent/NO125512B/no unknown
- 1970-05-12 YU YU1195/70A patent/YU32508B/xx unknown
- 1970-05-14 US US00037256A patent/US3710110A/en not_active Expired - Lifetime
- 1970-05-14 SE SE6620/70A patent/SE346173B/xx unknown
- 1970-05-15 FR FR7017911A patent/FR2047853A5/fr not_active Expired
- 1970-05-15 DE DE2023954A patent/DE2023954C3/de not_active Expired
- 1970-05-15 NL NLAANVRAGE7007045,A patent/NL168975C/xx not_active IP Right Cessation
- 1970-05-19 GB GB1250296D patent/GB1250296A/en not_active Expired
-
1977
- 1977-03-03 HK HK115/77A patent/HK11577A/xx unknown
Also Published As
Publication number | Publication date |
---|---|
DE2023954B2 (de) | 1979-01-25 |
YU119570A (en) | 1974-06-30 |
DE2023954C3 (de) | 1979-09-20 |
DE2023954A1 (de) | 1970-11-26 |
NO125512B (es) | 1972-09-18 |
NL7007045A (es) | 1970-11-23 |
US3710110A (en) | 1973-01-09 |
NL168975B (nl) | 1981-12-16 |
GB1250296A (es) | 1971-10-20 |
FR2047853A5 (es) | 1971-03-12 |
SE346173B (es) | 1972-06-26 |
YU32508B (en) | 1974-12-31 |
CH486082A (de) | 1970-02-15 |
NL168975C (nl) | 1982-05-17 |
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