CH534405A - Alarm installation - Google Patents

Alarm installation

Info

Publication number
CH534405A
CH534405A CH652769A CH652769A CH534405A CH 534405 A CH534405 A CH 534405A CH 652769 A CH652769 A CH 652769A CH 652769 A CH652769 A CH 652769A CH 534405 A CH534405 A CH 534405A
Authority
CH
Switzerland
Prior art keywords
alarm installation
alarm
installation
Prior art date
Application number
CH652769A
Other languages
French (fr)
Inventor
Goodwin Alfred George Ive
Original Assignee
Goodwin Alfred George Ive
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 Goodwin Alfred George Ive filed Critical Goodwin Alfred George Ive
Publication of CH534405A publication Critical patent/CH534405A/en

Links

Classifications

    • G—PHYSICS
    • G08—SIGNALLING
    • G08B—SIGNALLING OR CALLING SYSTEMS; ORDER TELEGRAPHS; ALARM SYSTEMS
    • G08B13/00—Burglar, theft or intruder alarms
    • G08B13/02—Mechanical actuation
    • G08B13/08—Mechanical actuation by opening, e.g. of door, of window, of drawer, of shutter, of curtain, of blind
    • G—PHYSICS
    • G08—SIGNALLING
    • G08B—SIGNALLING OR CALLING SYSTEMS; ORDER TELEGRAPHS; ALARM SYSTEMS
    • G08B13/00—Burglar, theft or intruder alarms
    • G08B13/22—Electrical actuation

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Burglar Alarm Systems (AREA)
  • Alarm Systems (AREA)
CH652769A 1968-04-29 1969-04-29 Alarm installation CH534405A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB20320/68A GB1178957A (en) 1968-04-29 1968-04-29 Improvements in and relating to Electrical Protective Systems

Publications (1)

Publication Number Publication Date
CH534405A true CH534405A (en) 1973-02-28

Family

ID=10144025

Family Applications (1)

Application Number Title Priority Date Filing Date
CH652769A CH534405A (en) 1968-04-29 1969-04-29 Alarm installation

Country Status (8)

Country Link
US (1) US3626403A (en)
BE (1) BE732211A (en)
CH (1) CH534405A (en)
DE (1) DE1921519C3 (en)
FR (1) FR2007221A1 (en)
GB (2) GB1178957A (en)
NL (1) NL6906607A (en)
SE (1) SE350866B (en)

Families Citing this family (14)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
SE402660B (en) * 1970-11-12 1978-07-10 Securitas Int Ab FIREPLACE FACILITY
US3765016A (en) * 1971-05-24 1973-10-09 Oak Electro Netics Corp Security system including means for polling the premises to be protected
US3706987A (en) * 1971-08-23 1972-12-19 Bay Alarm Co Alarm loop circuit system with light-emitting current-detection means
US3798628A (en) * 1971-09-27 1974-03-19 G Ive Protective systems and apparatus therefor
US3962696A (en) * 1972-06-15 1976-06-08 Inertia Switch Limited Protective systems
US4333094A (en) * 1978-12-04 1982-06-01 Homexx International Corp. Swimming pool alarm
EP0015656B1 (en) * 1979-02-09 1983-12-14 Philip Charles Sefton Improvements relating to security equipment
US4524349A (en) * 1982-08-09 1985-06-18 Nel-Tech Development, Inc. Security system having detector sensing and identification
US4567471A (en) * 1983-08-08 1986-01-28 Pittway Corporation Monitoring system
US5200734A (en) * 1992-01-06 1993-04-06 Lin Tieng Fu Detecting and alarming system for detecting shortcircuited or broken circuit
EP2225881A4 (en) * 2007-11-29 2011-05-18 Intelligent Sentinel Technologies Llc Systems and methods for a property sentinel
EP3495546B1 (en) * 2017-12-06 2020-03-25 Defond Electech Co., Ltd A detection circuit module for use in detecting an operational status of a household appliance door
IT201800006542A1 (en) * 2018-06-22 2018-09-22 Door lock device.
US10636274B1 (en) * 2019-01-02 2020-04-28 The Boeing Company Reconfigurable enclosure system with barrier continuity loop intrusion detection

Family Cites Families (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2944252A (en) * 1957-01-07 1960-07-05 American District Telegraph Co Intruder alarm system
US3010100A (en) * 1958-06-30 1961-11-21 American District Telegraph Co Direct current operated burglar alarm system with alternating current supervision
US2971186A (en) * 1959-06-30 1961-02-07 Ripepi Tony Central warning burglar alarm system
US3254334A (en) * 1963-12-19 1966-05-31 American District Telegraph Co Electrical protection system utilizing reverse polarity line testing with unidirectional current devices having reverse breakdown characteristic
US3287718A (en) * 1964-03-10 1966-11-22 Lloyd S Stensrud Subscriber alarm system
US3286250A (en) * 1964-10-16 1966-11-15 Teitelbaum Menashe Burglar alarm utilizing bi-stable electronic switches
US3351934A (en) * 1965-05-19 1967-11-07 Honeywell Inc Supervised alarm system
US3470554A (en) * 1966-03-09 1969-09-30 Johnson Service Co Intrusion alarm system having authorization capability with tamper detection means

Also Published As

Publication number Publication date
FR2007221A1 (en) 1970-01-02
BE732211A (en) 1969-10-01
DE1921519A1 (en) 1970-08-27
US3626403A (en) 1971-12-07
DE1921519C3 (en) 1979-12-20
DE1921519B2 (en) 1979-04-26
SE350866B (en) 1972-11-06
GB1178957A (en) 1970-01-28
NL6906607A (en) 1969-10-31
GB1296672A (en) 1972-11-15

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Legal Events

Date Code Title Description
PL Patent ceased