DK141948C - - Google Patents
Info
- Publication number
- DK141948C DK141948C DK182774A DK182774A DK141948C DK 141948 C DK141948 C DK 141948C DK 182774 A DK182774 A DK 182774A DK 182774 A DK182774 A DK 182774A DK 141948 C DK141948 C DK 141948C
- Authority
- DK
- Denmark
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)
- Other Investigation Or Analysis Of Materials By Electrical Means (AREA)
- Fire Alarms (AREA)
- Fire-Extinguishing By Fire Departments, And Fire-Extinguishing Equipment And Control Thereof (AREA)
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CH474173A CH554033A (de) | 1973-04-03 | 1973-04-03 | Iomisations-feuermelde-einrichtung. |
| CH474173 | 1973-04-03 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| DK141948B DK141948B (da) | 1980-07-21 |
| DK141948C true DK141948C (da) | 1980-12-01 |
Family
ID=4281699
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| DK182774AA DK141948B (da) | 1973-04-03 | 1974-04-02 | Brandalarmapparat med radioaktiv kilde til frembringelse af ioner. |
Country Status (10)
| Country | Link |
|---|---|
| JP (1) | JPS503300A (da) |
| CH (1) | CH554033A (da) |
| DE (1) | DE2412557C3 (da) |
| DK (1) | DK141948B (da) |
| FI (1) | FI57496C (da) |
| FR (1) | FR2224819B1 (da) |
| GB (1) | GB1432531A (da) |
| NO (1) | NO137666C (da) |
| SE (1) | SE389570B (da) |
| ZA (1) | ZA741787B (da) |
Families Citing this family (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| BE874157A (fr) * | 1979-02-14 | 1979-05-29 | Inst Nat Radio Elements | Detecteur ionique |
| US4488044A (en) * | 1981-11-20 | 1984-12-11 | Pittway Corporation | Ionization chamber for smoke detector and the like |
| AT378431B (de) * | 1983-06-30 | 1985-08-12 | Siemens Ag Oesterreich | Probenkammer herkoemmlicher groesse zum einbau eines ionisations-rauchmelder-einsatzes |
| JPS60135757A (ja) * | 1983-12-23 | 1985-07-19 | Hochiki Corp | ガスセンサ |
| NO158391C (no) * | 1985-02-08 | 1988-08-31 | Flaekt Ab | Brannvarslingssystem for oppholdsrom. |
| EP0405473A3 (en) * | 1989-06-28 | 1991-05-02 | Pittway Corporation | Low profile detector with multi-sided source |
| JP2520357B2 (ja) * | 1993-01-29 | 1996-07-31 | 三洋電機株式会社 | 自動洗髪機 |
| JP3714926B2 (ja) * | 2002-08-22 | 2005-11-09 | ホーチキ株式会社 | サンプリング管式煙検知器 |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| NL224264A (da) * | 1957-10-24 | |||
| CH486082A (de) * | 1969-05-19 | 1970-02-15 | Cerberus Ag | Ionisationsfeuermelder |
-
1973
- 1973-04-03 CH CH474173A patent/CH554033A/xx not_active IP Right Cessation
-
1974
- 1974-03-15 DE DE2412557A patent/DE2412557C3/de not_active Expired
- 1974-03-18 FR FR7409097A patent/FR2224819B1/fr not_active Expired
- 1974-03-19 ZA ZA00741787A patent/ZA741787B/xx unknown
- 1974-04-02 FI FI1013/74A patent/FI57496C/fi active
- 1974-04-02 SE SE7404420A patent/SE389570B/xx unknown
- 1974-04-02 NO NO741189A patent/NO137666C/no unknown
- 1974-04-02 DK DK182774AA patent/DK141948B/da not_active IP Right Cessation
- 1974-04-02 JP JP49036692A patent/JPS503300A/ja active Pending
- 1974-04-03 GB GB1484074A patent/GB1432531A/en not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| DE2412557C3 (de) | 1982-02-18 |
| FR2224819B1 (da) | 1980-01-04 |
| AU6701374A (en) | 1975-09-25 |
| DE2412557A1 (de) | 1974-10-24 |
| DE2412557B2 (de) | 1981-06-19 |
| FI57496C (fi) | 1980-08-11 |
| NO741189L (no) | 1974-10-04 |
| SE389570B (sv) | 1976-11-08 |
| ZA741787B (en) | 1975-03-26 |
| NO137666C (no) | 1978-04-12 |
| FR2224819A1 (da) | 1974-10-31 |
| GB1432531A (en) | 1976-04-22 |
| FI57496B (fi) | 1980-04-30 |
| DK141948B (da) | 1980-07-21 |
| JPS503300A (da) | 1975-01-14 |
| NO137666B (no) | 1977-12-19 |
| CH554033A (de) | 1974-09-13 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PBP | Patent lapsed |