DE2251046B2 - Rauchgasanzeiger - Google Patents

Rauchgasanzeiger

Info

Publication number
DE2251046B2
DE2251046B2 DE2251046A DE2251046A DE2251046B2 DE 2251046 B2 DE2251046 B2 DE 2251046B2 DE 2251046 A DE2251046 A DE 2251046A DE 2251046 A DE2251046 A DE 2251046A DE 2251046 B2 DE2251046 B2 DE 2251046B2
Authority
DE
Germany
Prior art keywords
voltage
capacitor
supply voltage
light source
smoke gas
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.)
Pending
Application number
DE2251046A
Other languages
German (de)
English (en)
Other versions
DE2251046A1 (de
Inventor
Alfred Walter Abington Mass. Vasel (V.St.A.)
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.)
Pyrotector Inc Hingham Mass (vsta)
Original Assignee
Pyrotector Inc Hingham Mass (vsta)
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 Pyrotector Inc Hingham Mass (vsta) filed Critical Pyrotector Inc Hingham Mass (vsta)
Publication of DE2251046A1 publication Critical patent/DE2251046A1/de
Publication of DE2251046B2 publication Critical patent/DE2251046B2/de
Pending legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N21/00—Investigating or analysing materials by the use of optical means, i.e. using sub-millimetre waves, infrared, visible or ultraviolet light
    • G01N21/17—Systems in which incident light is modified in accordance with the properties of the material investigated
    • G01N21/25—Colour; Spectral properties, i.e. comparison of effect of material on the light at two or more different wavelengths or wavelength bands
    • G01N21/255—Details, e.g. use of specially adapted sources, lighting or optical systems
    • 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
    • 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)
  • Chemical & Material Sciences (AREA)
  • General Physics & Mathematics (AREA)
  • Analytical Chemistry (AREA)
  • Biochemistry (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Health & Medical Sciences (AREA)
  • General Health & Medical Sciences (AREA)
  • Spectroscopy & Molecular Physics (AREA)
  • Immunology (AREA)
  • Pathology (AREA)
  • Business, Economics & Management (AREA)
  • Emergency Management (AREA)
  • Investigating Or Analysing Materials By Optical Means (AREA)
  • Fire-Detection Mechanisms (AREA)
DE2251046A 1971-12-13 1972-10-18 Rauchgasanzeiger Pending DE2251046B2 (de)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US20746171A 1971-12-13 1971-12-13

Publications (2)

Publication Number Publication Date
DE2251046A1 DE2251046A1 (de) 1973-06-20
DE2251046B2 true DE2251046B2 (de) 1975-08-14

Family

ID=22770642

Family Applications (1)

Application Number Title Priority Date Filing Date
DE2251046A Pending DE2251046B2 (de) 1971-12-13 1972-10-18 Rauchgasanzeiger

Country Status (7)

Country Link
US (1) US3789383A (https=)
JP (1) JPS4866794A (https=)
AU (1) AU462064B2 (https=)
DE (1) DE2251046B2 (https=)
FR (1) FR2165480A5 (https=)
GB (1) GB1395245A (https=)
SE (1) SE385057B (https=)

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3987358A (en) * 1972-01-26 1976-10-19 The Walter Kidde & Company, Inc. Condition detector circuit
US3898553A (en) * 1974-04-26 1975-08-05 Rca Corp Circuit for supplying power to a load
US4206456A (en) * 1975-06-23 1980-06-03 Chloride Incorporated Smoke detector
DE2965448D1 (en) * 1978-09-29 1983-07-07 Chubb Fire Security Ltd Heat detector circuit
WO1989007814A1 (en) * 1988-02-16 1989-08-24 Myers Holdings Pty Ltd; Security system for an environment

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2069160A (en) * 1933-09-01 1937-01-26 Kidde & Co Walter Regulated voltage system for detecting suspended matter in fluids
US2415179A (en) * 1944-09-23 1947-02-04 Jr Samuel C Hurley Photoelectric inspection device
US3314058A (en) * 1964-01-13 1967-04-11 Aseco Inc Electronic smoke detector and fire alarm
US3403315A (en) * 1965-10-22 1968-09-24 Smith Corp A O Condition responsive control circuit connected to gate a triggered switch
US3467817A (en) * 1967-02-23 1969-09-16 West Bend Co Temperature control circuit

Also Published As

Publication number Publication date
SE385057B (sv) 1976-05-31
US3789383A (en) 1974-01-29
FR2165480A5 (https=) 1973-08-03
JPS4866794A (https=) 1973-09-12
AU462064B2 (en) 1975-06-12
AU4786672A (en) 1974-04-26
GB1395245A (en) 1975-05-21
DE2251046A1 (de) 1973-06-20

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