CA1182592A - Ionization type smoke detector with test circuit - Google Patents

Ionization type smoke detector with test circuit

Info

Publication number
CA1182592A
CA1182592A CA000393916A CA393916A CA1182592A CA 1182592 A CA1182592 A CA 1182592A CA 000393916 A CA000393916 A CA 000393916A CA 393916 A CA393916 A CA 393916A CA 1182592 A CA1182592 A CA 1182592A
Authority
CA
Canada
Prior art keywords
voltage
electrode
test
collector
switch
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
CA000393916A
Other languages
English (en)
French (fr)
Inventor
Robert E. Johnson
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 Inc
Original Assignee
Chloride Inc
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 Inc filed Critical Chloride Inc
Application granted granted Critical
Publication of CA1182592A publication Critical patent/CA1182592A/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
    • G08B29/00—Checking or monitoring of signalling or alarm systems; Prevention or correction of operating errors, e.g. preventing unauthorised operation
    • G08B29/12—Checking intermittently signalling or alarm systems
    • G08B29/14—Checking intermittently signalling or alarm systems checking the detection circuits
    • G08B29/145—Checking intermittently signalling or alarm systems checking the detection circuits of fire detection circuits
    • 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

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Computer Security & Cryptography (AREA)
  • Chemical & Material Sciences (AREA)
  • Analytical Chemistry (AREA)
  • Business, Economics & Management (AREA)
  • Emergency Management (AREA)
  • Fire-Detection Mechanisms (AREA)
  • Other Investigation Or Analysis Of Materials By Electrical Means (AREA)
CA000393916A 1981-01-12 1982-01-11 Ionization type smoke detector with test circuit Expired CA1182592A (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US22438781A 1981-01-12 1981-01-12
US224,387 1988-07-26

Publications (1)

Publication Number Publication Date
CA1182592A true CA1182592A (en) 1985-02-12

Family

ID=22840457

Family Applications (1)

Application Number Title Priority Date Filing Date
CA000393916A Expired CA1182592A (en) 1981-01-12 1982-01-11 Ionization type smoke detector with test circuit

Country Status (6)

Country Link
JP (1) JPS57164398A (de)
CA (1) CA1182592A (de)
CH (1) CH657222A5 (de)
DE (1) DE3200620A1 (de)
ES (1) ES508630A0 (de)
GB (1) GB2091485B (de)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3904979A1 (de) * 1989-02-18 1990-08-23 Beyersdorf Hartwig Verfahren zum betrieb eines ionisationsrauchmelders und ionisationsrauchmelder
US5189399A (en) * 1989-02-18 1993-02-23 Hartwig Beyersdorf Method of operating an ionization smoke alarm and ionization smoke alarm
CN102473339B (zh) 2009-07-07 2016-01-27 爱克斯崔里斯科技有限公司 室调节

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4238788A (en) * 1978-01-03 1980-12-09 Teledyne Industries, Inc. System for detecting a combustion process

Also Published As

Publication number Publication date
GB2091485A (en) 1982-07-28
JPS57164398A (en) 1982-10-08
ES8307060A1 (es) 1983-07-01
CH657222A5 (de) 1986-08-15
ES508630A0 (es) 1983-07-01
GB2091485B (en) 1984-10-03
DE3200620A1 (de) 1982-09-09

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Legal Events

Date Code Title Description
MKEX Expiry