GB2343947B - Filter cartridge for the detection of airborne pollutants - Google Patents
Filter cartridge for the detection of airborne pollutantsInfo
- Publication number
- GB2343947B GB2343947B GB0002210A GB0002210A GB2343947B GB 2343947 B GB2343947 B GB 2343947B GB 0002210 A GB0002210 A GB 0002210A GB 0002210 A GB0002210 A GB 0002210A GB 2343947 B GB2343947 B GB 2343947B
- Authority
- GB
- United Kingdom
- Prior art keywords
- detection
- filter cartridge
- airborne pollutants
- airborne
- pollutants
- Prior art date
- 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 - Lifetime
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
-
- 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
- G08B17/103—Actuation by presence of smoke or gases, e.g. automatic alarm devices for analysing flowing fluid materials by the use of optical means using a light emitting and receiving device
- G08B17/107—Actuation by presence of smoke or gases, e.g. automatic alarm devices for analysing flowing fluid materials by the use of optical means using a light emitting and receiving device for detecting light-scattering due to smoke
-
- 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 (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
AUPN9659A AUPN965996A0 (en) | 1996-05-03 | 1996-05-03 | The detection of airborne pollutants |
GB9822925A GB2327495B (en) | 1996-05-03 | 1997-05-02 | The detection of airborne pollutants |
Publications (3)
Publication Number | Publication Date |
---|---|
GB0002210D0 GB0002210D0 (en) | 2000-03-22 |
GB2343947A GB2343947A (en) | 2000-05-24 |
GB2343947B true GB2343947B (en) | 2000-08-02 |
Family
ID=25645166
Family Applications (2)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB0002210A Expired - Lifetime GB2343947B (en) | 1996-05-03 | 1997-05-02 | Filter cartridge for the detection of airborne pollutants |
GB0002206A Withdrawn GB2343946A (en) | 1996-05-03 | 1997-05-02 | Reduced contamination smoke detector |
Family Applications After (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB0002206A Withdrawn GB2343946A (en) | 1996-05-03 | 1997-05-02 | Reduced contamination smoke detector |
Country Status (1)
Country | Link |
---|---|
GB (2) | GB2343947B (en) |
Families Citing this family (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US7034702B2 (en) * | 2003-12-23 | 2006-04-25 | Robert Bosch Gmbh | Optical smoke detector and method of cleaning |
GB2455318B (en) * | 2007-12-05 | 2012-04-04 | Red Dot Technologies Ltd | Optical scatter smoke sensor |
CN115054998B (en) * | 2022-07-25 | 2023-06-27 | 广东新氧器净化科技有限公司 | Filtering dust remover for small-sized circulating system |
Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3888644A (en) * | 1973-12-03 | 1975-06-10 | Black Sivalls & Bryson Inc | Filter-separator apparatus |
Family Cites Families (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB1079929A (en) * | 1964-11-13 | 1967-08-16 | Radiovisor Parent Ltd | Improvements in and relating to smoke detection devices |
GB1549193A (en) * | 1975-04-29 | 1979-08-01 | Hartridge Ltd Leslie | Apparatus for measuring smoke density |
FR2625582B1 (en) * | 1988-01-04 | 1994-05-06 | Cerberus Guinard | FIRE DETECTION DEVICE |
US5353629A (en) * | 1991-07-05 | 1994-10-11 | L. L. Churchill Limited | Smoke meter |
GB2261502A (en) * | 1991-10-04 | 1993-05-19 | Churchill V L Ltd | Smoke detection device |
DE9211940U1 (en) * | 1992-09-04 | 1992-10-29 | Avl List Gmbh, Graz | Measuring device for determining the turbidity of gases |
GB2274332A (en) * | 1993-01-15 | 1994-07-20 | Secr Defence | Smoke meter |
US5424842A (en) * | 1993-04-27 | 1995-06-13 | Cummins Electronics Company, Inc. | Self-cleaning system for monitoring the opacity of combustion engine exhaust using venturi effect |
-
1997
- 1997-05-02 GB GB0002210A patent/GB2343947B/en not_active Expired - Lifetime
- 1997-05-02 GB GB0002206A patent/GB2343946A/en not_active Withdrawn
Patent Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3888644A (en) * | 1973-12-03 | 1975-06-10 | Black Sivalls & Bryson Inc | Filter-separator apparatus |
Also Published As
Publication number | Publication date |
---|---|
GB0002206D0 (en) | 2000-03-22 |
GB2343947A (en) | 2000-05-24 |
GB0002210D0 (en) | 2000-03-22 |
GB2343946A (en) | 2000-05-24 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
732E | Amendments to the register in respect of changes of name or changes affecting rights (sect. 32/1977) | ||
732E | Amendments to the register in respect of changes of name or changes affecting rights (sect. 32/1977) | ||
PE20 | Patent expired after termination of 20 years |
Expiry date: 20170501 |