GB1180444A - Multiple Alarm System - Google Patents

Multiple Alarm System

Info

Publication number
GB1180444A
GB1180444A GB9167/67A GB916767A GB1180444A GB 1180444 A GB1180444 A GB 1180444A GB 9167/67 A GB9167/67 A GB 9167/67A GB 916767 A GB916767 A GB 916767A GB 1180444 A GB1180444 A GB 1180444A
Authority
GB
United Kingdom
Prior art keywords
contacts
frequency
multivibrator
alarm
bell
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
GB9167/67A
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.)
General Alarm Corp
Original Assignee
General Alarm 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 General Alarm Corp filed Critical General Alarm Corp
Publication of GB1180444A publication Critical patent/GB1180444A/en
Expired legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G08—SIGNALLING
    • G08B—SIGNALLING OR CALLING SYSTEMS; ORDER TELEGRAPHS; ALARM SYSTEMS
    • G08B3/00—Audible signalling systems; Audible personal calling systems
    • G08B3/10—Audible signalling systems; Audible personal calling systems using electric transmission; using electromagnetic transmission
    • G—PHYSICS
    • G08—SIGNALLING
    • G08B—SIGNALLING OR CALLING SYSTEMS; ORDER TELEGRAPHS; ALARM SYSTEMS
    • G08B13/00—Burglar, theft or intruder alarms
    • G—PHYSICS
    • G08—SIGNALLING
    • G08B—SIGNALLING OR CALLING SYSTEMS; ORDER TELEGRAPHS; ALARM SYSTEMS
    • G08B19/00—Alarms responsive to two or more different undesired or abnormal conditions, e.g. burglary and fire, abnormal temperature and abnormal rate of flow

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Electromagnetism (AREA)
  • Emergency Alarm Devices (AREA)
  • Alarm Systems (AREA)
GB9167/67A 1966-03-01 1967-02-27 Multiple Alarm System Expired GB1180444A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US53100066A 1966-03-01 1966-03-01

Publications (1)

Publication Number Publication Date
GB1180444A true GB1180444A (en) 1970-02-04

Family

ID=24115856

Family Applications (1)

Application Number Title Priority Date Filing Date
GB9167/67A Expired GB1180444A (en) 1966-03-01 1967-02-27 Multiple Alarm System

Country Status (7)

Country Link
US (1) US3466649A (forum.php)
BE (1) BE694799A (forum.php)
CH (1) CH457202A (forum.php)
DE (1) DE1566699A1 (forum.php)
FR (1) FR1512885A (forum.php)
GB (1) GB1180444A (forum.php)
SE (1) SE340773B (forum.php)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2000347A (en) * 1977-07-25 1979-01-04 Full E Alarm device
GB2151057A (en) * 1983-11-17 1985-07-10 Sakis Roy Alarm device
GB2238412A (en) * 1989-11-21 1991-05-29 Richard Bone Exit signalling device

Families Citing this family (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3623086A (en) * 1968-11-06 1971-11-23 Schulmerich Mfg Co Solid state control system for striking bells
GB1412457A (en) * 1971-12-27 1975-11-05 Sumitomo Electric Industries Sound generator comprising a piezoelectric acoustic device
US3872470A (en) * 1973-04-18 1975-03-18 Airco Inc Audible signal generating apparatus having selectively controlled audible output
US4078209A (en) * 1977-03-11 1978-03-07 International Telephone And Telegraph Corporation Sound communication system with speaker protection for frequencies below a predetermined minimum
DE2931437C2 (de) * 1979-08-02 1981-09-24 Siemens AG, 1000 Berlin und 8000 München Schaltungsanordnung zum Ansteuern eines Signallautsprechers
US5293155A (en) * 1990-05-07 1994-03-08 Wheelock Inc. Interface for a supervised multi-input audible warning system
CN206585662U (zh) * 2016-03-15 2017-10-24 Bot家庭自动化公司 音频/视频记录和通信门铃
IT202200020319A1 (it) * 2022-10-03 2024-04-03 Vimar Spa Dispositivo sonoro per impianti elettrici

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2455472A (en) * 1945-04-10 1948-12-07 Bell Telephone Labor Inc Method and system for electronically generating complex signals
US3196432A (en) * 1960-09-01 1965-07-20 Winston E Kock Transistorized door annunciator utilizing capacitor discharge
US3114114A (en) * 1960-11-09 1963-12-10 Robert R Atherton Voltage controlled ramp and pulse generator
US3183454A (en) * 1961-04-24 1965-05-11 Autophon Ag Circuit for providing sequences of pulses and intervals
US3210686A (en) * 1963-05-03 1965-10-05 Teletype Corp Unijunction oscillator with plural outputs depending on input control

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2000347A (en) * 1977-07-25 1979-01-04 Full E Alarm device
GB2000347B (en) * 1977-07-25 1982-02-03 Full E Alarm device
GB2151057A (en) * 1983-11-17 1985-07-10 Sakis Roy Alarm device
GB2238412A (en) * 1989-11-21 1991-05-29 Richard Bone Exit signalling device

Also Published As

Publication number Publication date
FR1512885A (fr) 1968-02-09
SE340773B (forum.php) 1971-11-29
US3466649A (en) 1969-09-09
CH457202A (de) 1968-05-31
DE1566699A1 (de) 1970-04-30
BE694799A (forum.php) 1967-08-28

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