BE748026A - ALARM DEVICE - Google Patents

ALARM DEVICE

Info

Publication number
BE748026A
BE748026A BE748026DA BE748026A BE 748026 A BE748026 A BE 748026A BE 748026D A BE748026D A BE 748026DA BE 748026 A BE748026 A BE 748026A
Authority
BE
Belgium
Prior art keywords
alarm device
alarm
Prior art date
Application number
Other languages
French (fr)
Inventor
De F T Thompson
Original Assignee
Westinghouse Electric 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 Westinghouse Electric Corp filed Critical Westinghouse Electric Corp
Publication of BE748026A publication Critical patent/BE748026A/en

Links

Classifications

    • G—PHYSICS
    • G08—SIGNALLING
    • G08B—SIGNALLING OR CALLING SYSTEMS; ORDER TELEGRAPHS; ALARM SYSTEMS
    • G08B29/00—Checking or monitoring of signalling or alarm systems; Prevention or correction of operating errors, e.g. preventing unauthorised operation
    • G08B29/02—Monitoring continuously signalling or alarm systems
    • G08B29/10—Monitoring of the annunciator circuits
    • 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

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Computer Security & Cryptography (AREA)
  • Business, Economics & Management (AREA)
  • Emergency Management (AREA)
  • Fire Alarms (AREA)
  • Alarm Systems (AREA)
BE748026D 1969-04-02 1970-03-26 ALARM DEVICE BE748026A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US81262169A 1969-04-02 1969-04-02

Publications (1)

Publication Number Publication Date
BE748026A true BE748026A (en) 1970-08-31

Family

ID=25210146

Family Applications (1)

Application Number Title Priority Date Filing Date
BE748026D BE748026A (en) 1969-04-02 1970-03-26 ALARM DEVICE

Country Status (4)

Country Link
US (1) US3641570A (en)
BE (1) BE748026A (en)
FR (1) FR2038166B1 (en)
GB (1) GB1253499A (en)

Families Citing this family (26)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3924254A (en) * 1972-10-06 1975-12-02 Franklin R Klebold Anti-intrusion alarm system
US3978479A (en) * 1975-05-29 1976-08-31 Westinghouse Electric Corporation Solid state security system
US3978477A (en) * 1975-05-29 1976-08-31 Westinghouse Electric Corporation Automatic test sequence circuit for a security system
US3990075A (en) * 1975-05-29 1976-11-02 Westinghouse Electric Corporation Solid state security system
US4064507A (en) * 1975-05-29 1977-12-20 Westinghouse Electric Corporation Noise generator circuit for a security system
US3978478A (en) * 1975-05-29 1976-08-31 Westinghouse Electric Corporation Reset circuit for a security system
US3978475A (en) * 1975-05-29 1976-08-31 Westinghouse Electric Corporation Trouble indicator circuit for a security system
US4051467A (en) * 1976-02-05 1977-09-27 American District Telegraph Company Fluid flow detector for a fire alarm system
US4312035A (en) * 1979-06-18 1982-01-19 Greene Richard E Apparatus for controlling electrical power in a data processing system
GB2127605B (en) * 1982-09-07 1986-09-24 Vickers Shipbuilding & Eng Portable hazard warning apparatus
DE3235120A1 (en) * 1982-09-22 1984-03-22 Siemens AG, 1000 Berlin und 8000 München MULTIPROCESSOR SYSTEM FOR HAZARD ALARM SYSTEMS
JPS59153109A (en) * 1983-02-22 1984-09-01 Mitsutoyo Mfg Co Ltd Erroneous-operation monitoring device for changed-amount measuring apparatus
US4651020A (en) * 1985-09-10 1987-03-17 Westinghouse Electric Corp. Redundant power supply system
JPS6378298A (en) * 1986-09-22 1988-04-08 シャープ株式会社 Abnormality alarm for equipment
GB2213333B (en) * 1987-12-02 1992-02-26 Morris Maram Detector units
US5103214A (en) * 1990-09-07 1992-04-07 Minnesota Mining And Manufacturing Company Auxiliary alarm
AUPM744794A0 (en) * 1994-08-15 1994-09-08 Garrick, Gilbert Alain Lindsay Smoke alarm system with standby battery and elv reactive primary power supply
US5652566A (en) * 1995-12-15 1997-07-29 Aequitron Medical, Inc. Alarm system
US5894413A (en) * 1997-01-28 1999-04-13 Sony Corporation Redundant power supply switchover circuit
US6011465A (en) * 1998-06-26 2000-01-04 Wang; Randall Backup arrangement for alarm system
US20020140543A1 (en) * 2001-04-02 2002-10-03 Chia-Cheng Chang Keyless remote control security system
DE102005013418A1 (en) * 2005-03-23 2006-09-28 B. Braun Medizintechnologie Gmbh Blood treatment device with alarm device
US7333010B2 (en) * 2005-03-25 2008-02-19 Simplexgrinnell Lp Method and apparatus for verifying operation of notification appliances during low input voltage condition
US8063763B2 (en) 2008-11-25 2011-11-22 Simplexgrinnell Lp System for testing NAC operability using reduced operating voltage
US9607494B2 (en) 2012-04-27 2017-03-28 Gentex Corporation Supervised interconnect smoke alarm system and method of using same
JP6247086B2 (en) * 2013-12-17 2017-12-13 ホーチキ株式会社 Fire alarm system

Family Cites Families (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2736012A (en) * 1956-02-21 Electric fire alarm system
US2077145A (en) * 1934-09-22 1937-04-13 Kidde & Co Walter Supervised electric system
US2594771A (en) * 1950-05-03 1952-04-29 J H Scharff Inc Supervised alarm system
US2695994A (en) * 1952-06-25 1954-11-30 Gen Sonics Corp Supervised signaling system
US2944251A (en) * 1956-01-13 1960-07-05 Notifier Corp Fire alarm system
US3060416A (en) * 1960-03-18 1962-10-23 Honeywell Regulator Co Supervised signal system
US3099825A (en) * 1960-09-30 1963-07-30 Harriman Cy Control units for fire protective signaling systems
US3176283A (en) * 1962-02-15 1965-03-30 Honeywell Inc Supervised annunciator
US3267288A (en) * 1964-10-20 1966-08-16 Newmark Products Inc System for floating a battery on a load line
US3448447A (en) * 1965-06-28 1969-06-03 Notifier Co Polarized d.c. signaling system and means for supervising same
US3500394A (en) * 1966-12-23 1970-03-10 Honeywell Inc Control apparatus
US3478352A (en) * 1967-03-10 1969-11-11 Honeywell Inc Alarm apparatus

Also Published As

Publication number Publication date
FR2038166A1 (en) 1971-01-08
FR2038166B1 (en) 1976-02-06
US3641570A (en) 1972-02-08
GB1253499A (en) 1971-11-17

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