GB1381734A - Alarm systems - Google Patents

Alarm systems

Info

Publication number
GB1381734A
GB1381734A GB6083271A GB6083271A GB1381734A GB 1381734 A GB1381734 A GB 1381734A GB 6083271 A GB6083271 A GB 6083271A GB 6083271 A GB6083271 A GB 6083271A GB 1381734 A GB1381734 A GB 1381734A
Authority
GB
United Kingdom
Prior art keywords
pulses
alarm
frame
data
station
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
GB6083271A
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.)
BALDWIN ELECTRONICS Inc
Original Assignee
BALDWIN ELECTRONICS Inc
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 BALDWIN ELECTRONICS Inc filed Critical BALDWIN ELECTRONICS Inc
Publication of GB1381734A publication Critical patent/GB1381734A/en
Expired legal-status Critical Current

Links

Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
    • F25D—REFRIGERATORS; COLD ROOMS; ICE-BOXES; COOLING OR FREEZING APPARATUS NOT OTHERWISE PROVIDED FOR
    • F25D29/00—Arrangement or mounting of control or safety devices
    • F25D29/008—Alarm devices
    • G—PHYSICS
    • G08—SIGNALLING
    • G08B—SIGNALLING OR CALLING SYSTEMS; ORDER TELEGRAPHS; ALARM SYSTEMS
    • G08B25/00—Alarm systems in which the location of the alarm condition is signalled to a central station, e.g. fire or police telegraphic systems
    • G08B25/009—Signalling of the alarm condition to a substation whose identity is signalled to a central station, e.g. relaying alarm signals in order to extend communication range

Landscapes

  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Combustion & Propulsion (AREA)
  • General Physics & Mathematics (AREA)
  • Chemical & Material Sciences (AREA)
  • Emergency Management (AREA)
  • Business, Economics & Management (AREA)
  • Mechanical Engineering (AREA)
  • Thermal Sciences (AREA)
  • General Engineering & Computer Science (AREA)
  • Alarm Systems (AREA)
  • Emergency Alarm Devices (AREA)
  • Burglar Alarm Systems (AREA)
GB6083271A 1970-12-31 1971-12-30 Alarm systems Expired GB1381734A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US10320370A 1970-12-31 1970-12-31

Publications (1)

Publication Number Publication Date
GB1381734A true GB1381734A (en) 1975-01-29

Family

ID=22293924

Family Applications (1)

Application Number Title Priority Date Filing Date
GB6083271A Expired GB1381734A (en) 1970-12-31 1971-12-30 Alarm systems

Country Status (8)

Country Link
US (1) US3689888A (enExample)
JP (1) JPS5549358B1 (enExample)
AU (1) AU467666B2 (enExample)
CA (1) CA979097A (enExample)
DE (1) DE2165754C3 (enExample)
FR (1) FR2120139B1 (enExample)
GB (1) GB1381734A (enExample)
IT (1) IT944581B (enExample)

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2401318A1 (fr) * 1977-08-22 1979-03-23 Economy Engine Co Dispositif d'arret et indicateur de premiere panne pour moteur a combustion interne
US4459584A (en) * 1981-12-21 1984-07-10 Clarkson Marvin R Automatic liquid level indicator and alarm system
GB2135487A (en) * 1983-02-16 1984-08-30 Veltronic Spa Remote signalling apparatus
WO1984004837A1 (en) * 1980-04-28 1984-12-06 Marvin Richard Clarkson Automatic liquid level indicator and alarm system
GB2156120A (en) * 1984-02-23 1985-10-02 Alarmcall Security Systems Lim Alarm system
GB2326002A (en) * 1997-06-06 1998-12-09 Centrepoint Technology Limited Remote reading of meters and sensors

Families Citing this family (18)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3792455A (en) * 1972-09-15 1974-02-12 Ward O Security alarm system with frequency sweeping
US3909826A (en) * 1973-08-31 1975-09-30 Alice F Schildmeier Plural transceiver alarm system using coded alarm message and every station display of alarm origin
US3925763A (en) * 1973-09-13 1975-12-09 Romesh Tekchand Wadhwani Security system
AU498573B2 (en) * 1974-06-18 1979-03-15 Aboyne Pty. Ltd. Information transmission system
US4095211A (en) * 1975-07-31 1978-06-13 The Stanley Works Coded electronic security system
US4020477A (en) * 1975-11-10 1977-04-26 American District Telegraph Company Radio central station alarm system
US4119943A (en) * 1977-01-14 1978-10-10 Kabushiki Kaisha Komatsu Seisakusho Monitor system for construction vehicles
JPS58127292A (ja) * 1982-01-26 1983-07-29 ニツタン株式会社 火災感知システム
FR2574916A1 (fr) * 1984-12-17 1986-06-20 Chevaillier Eric Dispositif de controle a distance du bon fonctionnement des installations frigorifiques ou de conditionnement d'air
US4647223A (en) * 1985-08-29 1987-03-03 Kolpak Industries, Inc. Cold storage room thermometer and back-up power supply
US4734680A (en) * 1986-02-06 1988-03-29 Emhart Industries, Inc. Detection system with randomized transmissions
US5248958A (en) * 1988-03-11 1993-09-28 Marcel Milin Hertzian-wave intrusion detetor
US4882564A (en) * 1988-06-06 1989-11-21 Monitech Corporation Remote temperature monitoring system
US5386209A (en) * 1992-01-21 1995-01-31 Thomas; Winston M. H. Cluster alarm monitoring system
US5946303A (en) * 1995-11-29 1999-08-31 Siemens Information And Communication Networks, Inc. Automatic configuration of a remote communication interface via the alarm indication signal
US7265654B1 (en) * 2004-04-22 2007-09-04 Powerline Control Systems, Inc. Powerline pulse position modulated transmitter apparatus and method
US8294556B2 (en) 2007-04-17 2012-10-23 Powerline Control Systems, Inc. Powerline control system and method
US9601915B2 (en) * 2013-10-29 2017-03-21 Luis Santana Electronic safety shutoff with dual redundancy

Family Cites Families (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2739301A (en) * 1951-03-28 1956-03-20 Bendix Aviat Corp Checking circuit for correct number of received information pulses
US3377585A (en) * 1961-03-17 1968-04-09 Electro Mechanical Res Inc Telemetering decoder system
US3257651A (en) * 1962-04-18 1966-06-21 Lyle D Feisel Pulse position modulation information handling system
US3394349A (en) * 1965-03-22 1968-07-23 Motorola Inc Supervisory control system having repeat message control and count control of the number of repeat messages
US3518628A (en) * 1966-11-10 1970-06-30 Electronic Specialty Co Systems and methods for communicating with a plurality of remote units
US3519749A (en) * 1967-04-26 1970-07-07 Bbp Electronics Inc Emergency warning system
US3492581A (en) * 1967-05-24 1970-01-27 Peninsula Research & Dev Corp Emergency calling system
FR1544729A (fr) * 1967-08-23 1968-11-08 Radarguard Security Ltd Perfectionnements apportés aux installations de sécurité
US3466605A (en) * 1967-11-28 1969-09-09 Honeywell Inc Alarm printer

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2401318A1 (fr) * 1977-08-22 1979-03-23 Economy Engine Co Dispositif d'arret et indicateur de premiere panne pour moteur a combustion interne
WO1984004837A1 (en) * 1980-04-28 1984-12-06 Marvin Richard Clarkson Automatic liquid level indicator and alarm system
US4459584A (en) * 1981-12-21 1984-07-10 Clarkson Marvin R Automatic liquid level indicator and alarm system
GB2135487A (en) * 1983-02-16 1984-08-30 Veltronic Spa Remote signalling apparatus
GB2156120A (en) * 1984-02-23 1985-10-02 Alarmcall Security Systems Lim Alarm system
GB2326002A (en) * 1997-06-06 1998-12-09 Centrepoint Technology Limited Remote reading of meters and sensors

Also Published As

Publication number Publication date
FR2120139B1 (enExample) 1976-09-03
DE2165754B2 (de) 1978-12-14
AU467666B2 (en) 1975-12-11
AU3745371A (en) 1973-07-05
JPS5549358B1 (enExample) 1980-12-11
FR2120139A1 (enExample) 1972-08-11
CA979097A (en) 1975-12-02
IT944581B (it) 1973-04-20
DE2165754C3 (de) 1979-08-16
DE2165754A1 (de) 1972-07-20
US3689888A (en) 1972-09-05

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Legal Events

Date Code Title Description
PS Patent sealed [section 19, patents act 1949]
PLE Entries relating assignments, transmissions, licences in the register of patents
PCNP Patent ceased through non-payment of renewal fee

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