CH494039A - Method and apparatus for displaying small amounts of a gaseous substance - Google Patents

Method and apparatus for displaying small amounts of a gaseous substance

Info

Publication number
CH494039A
CH494039A CH1597969A CH1597969A CH494039A CH 494039 A CH494039 A CH 494039A CH 1597969 A CH1597969 A CH 1597969A CH 1597969 A CH1597969 A CH 1597969A CH 494039 A CH494039 A CH 494039A
Authority
CH
Switzerland
Prior art keywords
small amounts
gaseous substance
displaying small
displaying
gaseous
Prior art date
Application number
CH1597969A
Other languages
German (de)
Inventor
Dave Sharad
Original Assignee
Eaton Yale & Towne
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 Eaton Yale & Towne filed Critical Eaton Yale & Towne
Publication of CH494039A publication Critical patent/CH494039A/en

Links

Classifications

    • A—HUMAN NECESSITIES
    • A62—LIFE-SAVING; FIRE-FIGHTING
    • A62C—FIRE-FIGHTING
    • A62C99/00—Subject matter not provided for in other groups of this subclass
    • A62C99/009—Methods or equipment not provided for in groups A62C99/0009 - A62C99/0081
    • 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

  • Business, Economics & Management (AREA)
  • Emergency Management (AREA)
  • Chemical & Material Sciences (AREA)
  • Analytical Chemistry (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Health & Medical Sciences (AREA)
  • Public Health (AREA)
  • Other Investigation Or Analysis Of Materials By Electrical Means (AREA)
  • Investigating, Analyzing Materials By Fluorescence Or Luminescence (AREA)
  • Investigating Or Analysing Materials By Optical Means (AREA)
CH1597969A 1969-03-11 1969-10-27 Method and apparatus for displaying small amounts of a gaseous substance CH494039A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US80619069A 1969-03-11 1969-03-11

Publications (1)

Publication Number Publication Date
CH494039A true CH494039A (en) 1970-07-31

Family

ID=25193526

Family Applications (1)

Application Number Title Priority Date Filing Date
CH1597969A CH494039A (en) 1969-03-11 1969-10-27 Method and apparatus for displaying small amounts of a gaseous substance

Country Status (3)

Country Link
CH (1) CH494039A (en)
DE (1) DE1952891A1 (en)
FR (1) FR2034800A1 (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1984002215A1 (en) * 1982-12-03 1984-06-07 Siegmann Hans Christoph Fire alarm and electrode device therefor

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102014019172B4 (en) 2014-12-17 2023-12-07 Elmos Semiconductor Se Device and method for distinguishing between solid objects, cooking fumes and smoke using a compensating optical measuring system
DE102014019773B4 (en) 2014-12-17 2023-12-07 Elmos Semiconductor Se Device and method for distinguishing between solid objects, cooking fumes and smoke using the display of a mobile telephone

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1984002215A1 (en) * 1982-12-03 1984-06-07 Siegmann Hans Christoph Fire alarm and electrode device therefor

Also Published As

Publication number Publication date
FR2034800A1 (en) 1970-12-18
DE1952891A1 (en) 1970-09-24

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Legal Events

Date Code Title Description
PL Patent ceased