GB1273307A - Ionization smoke detector - Google Patents

Ionization smoke detector

Info

Publication number
GB1273307A
GB1273307A GB3562970A GB3562970A GB1273307A GB 1273307 A GB1273307 A GB 1273307A GB 3562970 A GB3562970 A GB 3562970A GB 3562970 A GB3562970 A GB 3562970A GB 1273307 A GB1273307 A GB 1273307A
Authority
GB
United Kingdom
Prior art keywords
smoke detector
ionization smoke
ionization
july
detector
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
GB3562970A
Other languages
English (en)
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.)
Nittan Co Ltd
Original Assignee
Nittan Co 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
Priority claimed from JP7336169U external-priority patent/JPS483417Y1/ja
Application filed by Nittan Co Ltd filed Critical Nittan Co Ltd
Publication of GB1273307A publication Critical patent/GB1273307A/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
    • G08B17/11—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
    • 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)
GB3562970A 1969-07-22 1970-07-22 Ionization smoke detector Expired GB1273307A (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP5736769 1969-07-22
JP7336169U JPS483417Y1 (enrdf_load_stackoverflow) 1969-08-04 1969-08-04

Publications (1)

Publication Number Publication Date
GB1273307A true GB1273307A (en) 1972-05-10

Family

ID=26398403

Family Applications (1)

Application Number Title Priority Date Filing Date
GB3562970A Expired GB1273307A (en) 1969-07-22 1970-07-22 Ionization smoke detector

Country Status (5)

Country Link
DE (1) DE2034419B2 (enrdf_load_stackoverflow)
ES (1) ES381761A1 (enrdf_load_stackoverflow)
FR (1) FR2055344A5 (enrdf_load_stackoverflow)
GB (1) GB1273307A (enrdf_load_stackoverflow)
NL (1) NL7010165A (enrdf_load_stackoverflow)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2449282A1 (fr) * 1979-02-14 1980-09-12 Inst Nat Radio Elements Detecteur ionique

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2449282A1 (fr) * 1979-02-14 1980-09-12 Inst Nat Radio Elements Detecteur ionique

Also Published As

Publication number Publication date
DE2034419A1 (de) 1971-02-04
FR2055344A5 (enrdf_load_stackoverflow) 1971-05-07
NL7010165A (enrdf_load_stackoverflow) 1971-01-26
DE2034419B2 (de) 1972-12-07
ES381761A1 (es) 1974-06-16

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Legal Events

Date Code Title Description
PS Patent sealed
PCNP Patent ceased through non-payment of renewal fee