FR1419253A - Circuit d'alarme - Google Patents

Circuit d'alarme

Info

Publication number
FR1419253A
FR1419253A FR291A FR291A FR1419253A FR 1419253 A FR1419253 A FR 1419253A FR 291 A FR291 A FR 291A FR 291 A FR291 A FR 291A FR 1419253 A FR1419253 A FR 1419253A
Authority
FR
France
Prior art keywords
alarm circuit
alarm
circuit
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
FR291A
Other languages
English (en)
Inventor
John Emery Lindberg
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 filed Critical
Priority to FR291A priority Critical patent/FR1419253A/fr
Application granted granted Critical
Publication of FR1419253A publication Critical patent/FR1419253A/fr
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
    • G08B17/06—Electric actuation of the alarm, e.g. using a thermally-operated switch
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01K—MEASURING TEMPERATURE; MEASURING QUANTITY OF HEAT; THERMALLY-SENSITIVE ELEMENTS NOT OTHERWISE PROVIDED FOR
    • G01K5/00—Measuring temperature based on the expansion or contraction of a material
    • G01K5/32—Measuring temperature based on the expansion or contraction of a material the material being a fluid contained in a hollow body having parts which are deformable or displaceable
    • G01K5/46—Measuring temperature based on the expansion or contraction of a material the material being a fluid contained in a hollow body having parts which are deformable or displaceable with electric conversion means for final indication
    • G01K5/465—Measuring temperature based on the expansion or contraction of a material the material being a fluid contained in a hollow body having parts which are deformable or displaceable with electric conversion means for final indication using electrical contact making or breaking devices

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Business, Economics & Management (AREA)
  • Emergency Management (AREA)
FR291A 1964-12-29 1964-12-29 Circuit d'alarme Expired FR1419253A (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
FR291A FR1419253A (fr) 1964-12-29 1964-12-29 Circuit d'alarme

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR291A FR1419253A (fr) 1964-12-29 1964-12-29 Circuit d'alarme

Publications (1)

Publication Number Publication Date
FR1419253A true FR1419253A (fr) 1965-11-26

Family

ID=8566778

Family Applications (1)

Application Number Title Priority Date Filing Date
FR291A Expired FR1419253A (fr) 1964-12-29 1964-12-29 Circuit d'alarme

Country Status (1)

Country Link
FR (1) FR1419253A (fr)

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