CH506147A - Elektrische Branddetektoreinrichtung - Google Patents

Elektrische Branddetektoreinrichtung

Info

Publication number
CH506147A
CH506147A CH307169A CH307169A CH506147A CH 506147 A CH506147 A CH 506147A CH 307169 A CH307169 A CH 307169A CH 307169 A CH307169 A CH 307169A CH 506147 A CH506147 A CH 506147A
Authority
CH
Switzerland
Prior art keywords
sensor
circuit
alarm
arrangement
dependent
Prior art date
Application number
CH307169A
Other languages
German (de)
English (en)
Inventor
L Ogden Wilbur
Glenn Henderson Clarence
Original Assignee
Brk Electronics
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 Brk Electronics filed Critical Brk Electronics
Publication of CH506147A publication Critical patent/CH506147A/de

Links

Classifications

    • G—PHYSICS
    • G08—SIGNALLING
    • G08B—SIGNALLING SYSTEMS, e.g. PERSONAL 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
    • G08B29/18—Prevention or correction of operating errors
    • G08B29/183—Single detectors using dual technologies
    • G—PHYSICS
    • G08—SIGNALLING
    • G08B—SIGNALLING SYSTEMS, e.g. PERSONAL CALLING SYSTEMS; ORDER TELEGRAPHS; ALARM SYSTEMS
    • G08B17/00—Fire alarms; Alarms responsive to explosion
    • G08B17/06—Electric actuation of the alarm, e.g. using a thermally-operated switch
    • G—PHYSICS
    • G08—SIGNALLING
    • G08B—SIGNALLING SYSTEMS, e.g. PERSONAL 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
    • G—PHYSICS
    • G08—SIGNALLING
    • G08B—SIGNALLING SYSTEMS, e.g. PERSONAL 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 SYSTEMS, e.g. PERSONAL 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
    • G08B29/18—Prevention or correction of operating errors
    • G08B29/185—Signal analysis techniques for reducing or preventing false alarms or for enhancing the reliability of the system
    • G—PHYSICS
    • G08—SIGNALLING
    • G08B—SIGNALLING SYSTEMS, e.g. PERSONAL 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)
  • Business, Economics & Management (AREA)
  • Emergency Management (AREA)
  • Engineering & Computer Science (AREA)
  • Computer Security & Cryptography (AREA)
  • Chemical & Material Sciences (AREA)
  • Analytical Chemistry (AREA)
  • Fire-Detection Mechanisms (AREA)
CH307169A 1968-02-29 1969-02-28 Elektrische Branddetektoreinrichtung CH506147A (de)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
US70941568A 1968-02-29 1968-02-29
US75108668A 1968-08-08 1968-08-08
US77548468A 1968-11-13 1968-11-13

Publications (1)

Publication Number Publication Date
CH506147A true CH506147A (de) 1971-04-15

Family

ID=27418858

Family Applications (1)

Application Number Title Priority Date Filing Date
CH307169A CH506147A (de) 1968-02-29 1969-02-28 Elektrische Branddetektoreinrichtung

Country Status (3)

Country Link
BE (1) BE741650A (2)
CH (1) CH506147A (2)
NL (1) NL6903185A (2)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2628146A1 (de) * 1975-06-23 1977-01-20 Pyrotector Inc Rauchgasanzeiger
US4975684A (en) * 1988-06-10 1990-12-04 Cerberus Ag Fire detecting system
EP2759994A3 (de) * 2013-01-23 2018-04-11 Robert Bosch Gmbh Brandmelder

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2628146A1 (de) * 1975-06-23 1977-01-20 Pyrotector Inc Rauchgasanzeiger
US4975684A (en) * 1988-06-10 1990-12-04 Cerberus Ag Fire detecting system
EP2759994A3 (de) * 2013-01-23 2018-04-11 Robert Bosch Gmbh Brandmelder

Also Published As

Publication number Publication date
NL6903185A (2) 1969-09-02
BE741650A (2) 1970-04-16

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Legal Events

Date Code Title Description
PL Patent ceased