GB2123548B - Suspended particle detector - Google Patents

Suspended particle detector

Info

Publication number
GB2123548B
GB2123548B GB08220406A GB8220406A GB2123548B GB 2123548 B GB2123548 B GB 2123548B GB 08220406 A GB08220406 A GB 08220406A GB 8220406 A GB8220406 A GB 8220406A GB 2123548 B GB2123548 B GB 2123548B
Authority
GB
United Kingdom
Prior art keywords
particle detector
suspended particle
suspended
detector
particle
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
Application number
GB08220406A
Other versions
GB2123548A (en
Inventor
Christopher Davies
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Chloride Group Ltd
Original Assignee
Chloride Group Ltd
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Chloride Group Ltd filed Critical Chloride Group Ltd
Priority to GB08220406A priority Critical patent/GB2123548B/en
Priority to JP58502413A priority patent/JPS59501283A/en
Priority to EP83304076A priority patent/EP0099729A1/en
Priority to PCT/GB1983/000171 priority patent/WO1984000429A1/en
Priority to ES524120A priority patent/ES524120A0/en
Priority to IL69222A priority patent/IL69222A0/en
Publication of GB2123548A publication Critical patent/GB2123548A/en
Priority to DK139384A priority patent/DK139384A/en
Priority to FI841014A priority patent/FI841014A0/en
Priority to NO840972A priority patent/NO840972L/en
Application granted granted Critical
Publication of GB2123548B publication Critical patent/GB2123548B/en
Expired legal-status Critical Current

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
    • G08B17/103—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)
  • Investigating Or Analysing Materials By Optical Means (AREA)
  • Sampling And Sample Adjustment (AREA)
GB08220406A 1982-07-14 1982-07-14 Suspended particle detector Expired GB2123548B (en)

Priority Applications (9)

Application Number Priority Date Filing Date Title
GB08220406A GB2123548B (en) 1982-07-14 1982-07-14 Suspended particle detector
EP83304076A EP0099729A1 (en) 1982-07-14 1983-07-13 Suspended particle detector
PCT/GB1983/000171 WO1984000429A1 (en) 1982-07-14 1983-07-13 Suspended particle detector
JP58502413A JPS59501283A (en) 1982-07-14 1983-07-13 airborne particle detector
ES524120A ES524120A0 (en) 1982-07-14 1983-07-14 IMPROVEMENTS IN SUSPENSION PARTICLE DETECTORS
IL69222A IL69222A0 (en) 1982-07-14 1983-07-14 Suspended particle detector
DK139384A DK139384A (en) 1982-07-14 1984-02-29 DETECTOR FOR DETECTING FLUID PARTICLES
FI841014A FI841014A0 (en) 1982-07-14 1984-03-13 DETECTOR FOER SUSPENDERADE PARTIKLAR
NO840972A NO840972L (en) 1982-07-14 1984-03-13 FLUID PARTICLE DETECTOR.

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB08220406A GB2123548B (en) 1982-07-14 1982-07-14 Suspended particle detector

Publications (2)

Publication Number Publication Date
GB2123548A GB2123548A (en) 1984-02-01
GB2123548B true GB2123548B (en) 1985-09-04

Family

ID=10531663

Family Applications (1)

Application Number Title Priority Date Filing Date
GB08220406A Expired GB2123548B (en) 1982-07-14 1982-07-14 Suspended particle detector

Country Status (9)

Country Link
EP (1) EP0099729A1 (en)
JP (1) JPS59501283A (en)
DK (1) DK139384A (en)
ES (1) ES524120A0 (en)
FI (1) FI841014A0 (en)
GB (1) GB2123548B (en)
IL (1) IL69222A0 (en)
NO (1) NO840972L (en)
WO (1) WO1984000429A1 (en)

Families Citing this family (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB8529585D0 (en) * 1985-11-30 1986-01-08 Casswell P H Active infra red detector
US4769504A (en) * 1987-03-04 1988-09-06 The United States Of America As Represented By The United States Department Of Energy Process for converting light alkanes to higher hydrocarbons
GB9014015D0 (en) * 1990-06-23 1990-08-15 Dennis Peter N J Improvements in or relating to smoke detectors
DE4141944C2 (en) * 1991-12-19 1995-06-08 Hansa Metallwerke Ag Device for the contactless control of a sanitary fitting
SE470168B (en) * 1992-04-27 1993-11-22 Whirlpool Int Smoke / steam detector for microwave oven
EP2093732A1 (en) * 2008-02-19 2009-08-26 Siemens Aktiengesellschaft Device and method for detecting smoke through joint evaluation of two optical backscattering signals
ATE507544T1 (en) * 2008-02-19 2011-05-15 Siemens Ag SMOKE DETECTION USING TWO SPECTRALLY DIFFERENT SCATTERED LIGHT MEASUREMENTS

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3723747A (en) * 1971-06-03 1973-03-27 Electro Signal Lab Photoelectric detector with compensating photocell
DE2856259B1 (en) * 1978-12-27 1979-12-20 Cerberus Ag Smoke detector
DE2907173A1 (en) * 1979-02-23 1980-09-04 Hekatron Gmbh CIRCUIT ARRANGEMENT FOR AN OPTICAL FLUE GAS DETECTOR

Also Published As

Publication number Publication date
ES8405983A1 (en) 1984-06-16
FI841014A (en) 1984-03-13
DK139384D0 (en) 1984-02-29
WO1984000429A1 (en) 1984-02-02
NO840972L (en) 1984-03-13
GB2123548A (en) 1984-02-01
EP0099729A1 (en) 1984-02-01
IL69222A0 (en) 1983-11-30
FI841014A0 (en) 1984-03-13
JPS59501283A (en) 1984-07-19
ES524120A0 (en) 1984-06-16
DK139384A (en) 1984-02-29

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Legal Events

Date Code Title Description
732 Registration of transactions, instruments or events in the register (sect. 32/1977)
PCNP Patent ceased through non-payment of renewal fee

Effective date: 19980714