FR691667A - Perfectionnements aux appareils avertisseurs d'incendie - Google Patents

Perfectionnements aux appareils avertisseurs d'incendie

Info

Publication number
FR691667A
FR691667A FR691667DA FR691667A FR 691667 A FR691667 A FR 691667A FR 691667D A FR691667D A FR 691667DA FR 691667 A FR691667 A FR 691667A
Authority
FR
France
Prior art keywords
fire alarm
alarm devices
devices
fire
alarm
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
Other languages
English (en)
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.)
Automatic Sprinkler Corp
Original Assignee
Automatic Sprinkler Corp
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 Automatic Sprinkler Corp filed Critical Automatic Sprinkler Corp
Application granted granted Critical
Publication of FR691667A publication Critical patent/FR691667A/fr
Expired legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H35/00—Switches operated by change of a physical condition
    • H01H35/24—Switches operated by change of fluid pressure, by fluid pressure waves, or by change of fluid flow
    • H01H35/34—Switches operated by change of fluid pressure, by fluid pressure waves, or by change of fluid flow actuated by diaphragm
    • H01H35/346—Switches operated by change of fluid pressure, by fluid pressure waves, or by change of fluid flow actuated by diaphragm in which the movable contact is formed or directly supported by the diaphragm
    • G—PHYSICS
    • G08—SIGNALLING
    • G08B—SIGNALLING SYSTEMS, e.g. PERSONAL CALLING SYSTEMS; ORDER TELEGRAPHS; ALARM SYSTEMS
    • G08B17/00—Fire alarms; Alarms responsive to explosion
    • G08B17/04—Hydraulic or pneumatic actuation of the alarm, e.g. by change of fluid pressure

Landscapes

  • Physics & Mathematics (AREA)
  • Fluid Mechanics (AREA)
  • Business, Economics & Management (AREA)
  • Emergency Management (AREA)
  • General Physics & Mathematics (AREA)
  • Fire-Detection Mechanisms (AREA)
FR691667D 1929-12-27 1930-03-10 Perfectionnements aux appareils avertisseurs d'incendie Expired FR691667A (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US416782A US1986479A (en) 1929-12-27 1929-12-27 Means for supervising pneumatic fire alarm systems

Publications (1)

Publication Number Publication Date
FR691667A true FR691667A (fr) 1930-10-24

Family

ID=23651273

Family Applications (1)

Application Number Title Priority Date Filing Date
FR691667D Expired FR691667A (fr) 1929-12-27 1930-03-10 Perfectionnements aux appareils avertisseurs d'incendie

Country Status (2)

Country Link
US (1) US1986479A (fr)
FR (1) FR691667A (fr)

Families Citing this family (17)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2966667A (en) * 1945-06-06 1960-12-27 George H Leonard Pressure gradient detector
US2493351A (en) * 1946-04-13 1950-01-03 Edison Inc Thomas A Pressure type fire detecting system
US2658190A (en) * 1952-06-14 1953-11-03 Edward J Poitras Liquid-vapor phase differential fire and overheat detector and control and system
US2723388A (en) * 1953-09-03 1955-11-08 Jacobs Wind Electric Company I Pressure responsive warning signal
US2778007A (en) * 1955-12-09 1957-01-15 Berchin Walter Multi-carburetor synchronizer
US3116478A (en) * 1959-10-07 1963-12-31 Molins Machine Co Ltd Balanced pulsed pneumatic bridge type detector of cigarette presence and packing density
US3108466A (en) * 1961-02-24 1963-10-29 Howard H Sander Blast yield meter
FR1315142A (fr) * 1961-12-06 1963-01-18 Commissariat Energie Atomique Procédé et dispositifs manométriques applicables notamment à l'étude des phénomènes d'explosion
GB1125754A (en) * 1965-04-14 1968-08-28 Oasis Technical Invest Ltd Improvements relating to alarm apparatus
BE756000A (fr) * 1969-09-15 1971-02-15 Westinghouse Electric Corp Appareil de securite perfectionne sensible a la pression
US3914755A (en) * 1973-12-10 1975-10-21 Vann Signal Devices Inc Pressure change responsive alarm apparatus
US4100537A (en) * 1977-08-08 1978-07-11 Taylor Medical Oxygen Services, Inc. Monitor for gas piping system
US5136278A (en) * 1991-03-15 1992-08-04 Systron Donner Corporation Compact and lightweight pneumatic pressure detector for fire detection with integrity switch
US9153400B2 (en) * 2013-03-15 2015-10-06 Kidde Technologies, Inc. Pneumatic detector integrated alarm and fault switch
GB2513593B (en) * 2013-04-30 2015-11-04 Kidde Tech Inc Pneumatic pressure switch
US9418527B2 (en) * 2013-10-03 2016-08-16 Kidde Technologies, Inc. Pneumatic detector switch having a single diaphragm for alarm and fault conditions
US9208980B2 (en) * 2014-01-21 2015-12-08 Kidde Technologies, Inc. Pneumatic detector with integrated electrical contact

Also Published As

Publication number Publication date
US1986479A (en) 1935-01-01

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