CA1119318A - Detecteur de fumee a dispositif de reglage pour augmenter sa sensibilite - Google Patents

Detecteur de fumee a dispositif de reglage pour augmenter sa sensibilite

Info

Publication number
CA1119318A
CA1119318A CA000303682A CA303682A CA1119318A CA 1119318 A CA1119318 A CA 1119318A CA 000303682 A CA000303682 A CA 000303682A CA 303682 A CA303682 A CA 303682A CA 1119318 A CA1119318 A CA 1119318A
Authority
CA
Canada
Prior art keywords
responsive
photo
ambient light
detector
smoke
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
CA000303682A
Other languages
English (en)
Inventor
William J. Malinowski
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
Priority claimed from US05/798,582 external-priority patent/US4112310A/en
Priority claimed from US05/798,578 external-priority patent/US4101785A/en
Application filed by Chloride Inc filed Critical Chloride Inc
Application granted granted Critical
Publication of CA1119318A publication Critical patent/CA1119318A/fr
Expired legal-status Critical Current

Links

Classifications

    • 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
    • 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

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)
CA000303682A 1977-05-19 1978-05-18 Detecteur de fumee a dispositif de reglage pour augmenter sa sensibilite Expired CA1119318A (fr)

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
US798,578 1977-05-19
US05/798,582 US4112310A (en) 1977-05-19 1977-05-19 Smoke detector with photo-responsive means for increasing the sensitivity during darkness
US05/798,578 US4101785A (en) 1977-05-19 1977-05-19 Smoke detector with switch means for increasing the sensitivity
US798,582 1977-05-19

Publications (1)

Publication Number Publication Date
CA1119318A true CA1119318A (fr) 1982-03-02

Family

ID=27122009

Family Applications (1)

Application Number Title Priority Date Filing Date
CA000303682A Expired CA1119318A (fr) 1977-05-19 1978-05-18 Detecteur de fumee a dispositif de reglage pour augmenter sa sensibilite

Country Status (2)

Country Link
CA (1) CA1119318A (fr)
GB (1) GB1602817A (fr)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR102898040B1 (ko) * 2019-05-23 2025-12-08 노스게이트 테크놀로지스 인코포레이티드 가스 재순환 시스템의 연기 제거 시스템 및 방법
CN116703252B (zh) * 2023-08-08 2023-11-14 山东数川信息技术股份有限公司 基于SaaS的智慧楼宇信息管理方法

Also Published As

Publication number Publication date
GB1602817A (en) 1981-11-18

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Legal Events

Date Code Title Description
MKEX Expiry