JPS5411826Y2 - - Google Patents

Info

Publication number
JPS5411826Y2
JPS5411826Y2 JP1971071230U JP7123071U JPS5411826Y2 JP S5411826 Y2 JPS5411826 Y2 JP S5411826Y2 JP 1971071230 U JP1971071230 U JP 1971071230U JP 7123071 U JP7123071 U JP 7123071U JP S5411826 Y2 JPS5411826 Y2 JP S5411826Y2
Authority
JP
Japan
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
JP1971071230U
Other languages
Japanese (ja)
Other versions
JPS4828389U (enrdf_load_stackoverflow
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 filed Critical
Priority to JP1971071230U priority Critical patent/JPS5411826Y2/ja
Priority to US00231214A priority patent/US3852735A/en
Publication of JPS4828389U publication Critical patent/JPS4828389U/ja
Application granted granted Critical
Publication of JPS5411826Y2 publication Critical patent/JPS5411826Y2/ja
Expired legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G08—SIGNALLING
    • G08B—SIGNALLING OR CALLING SYSTEMS; ORDER TELEGRAPHS; ALARM SYSTEMS
    • G08B13/00—Burglar, theft or intruder alarms
    • G08B13/22—Electrical actuation
    • G08B13/24—Electrical actuation by interference with electromagnetic field distribution
    • G08B13/2491—Intrusion detection systems, i.e. where the body of an intruder causes the interference with the electromagnetic field
    • G08B13/2494—Intrusion detection systems, i.e. where the body of an intruder causes the interference with the electromagnetic field by interference with electro-magnetic field distribution combined with other electrical sensor means, e.g. microwave detectors combined with other sensor means

Landscapes

  • Physics & Mathematics (AREA)
  • Electromagnetism (AREA)
  • General Physics & Mathematics (AREA)
  • Burglar Alarm Systems (AREA)
  • Aerials With Secondary Devices (AREA)
JP1971071230U 1971-08-09 1971-08-09 Expired JPS5411826Y2 (enrdf_load_stackoverflow)

Priority Applications (2)

Application Number Priority Date Filing Date Title
JP1971071230U JPS5411826Y2 (enrdf_load_stackoverflow) 1971-08-09 1971-08-09
US00231214A US3852735A (en) 1971-08-09 1972-03-02 Alarm apparatus utilizing high frequency

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP1971071230U JPS5411826Y2 (enrdf_load_stackoverflow) 1971-08-09 1971-08-09

Publications (2)

Publication Number Publication Date
JPS4828389U JPS4828389U (enrdf_load_stackoverflow) 1973-04-06
JPS5411826Y2 true JPS5411826Y2 (enrdf_load_stackoverflow) 1979-05-25

Family

ID=27969209

Family Applications (1)

Application Number Title Priority Date Filing Date
JP1971071230U Expired JPS5411826Y2 (enrdf_load_stackoverflow) 1971-08-09 1971-08-09

Country Status (2)

Country Link
US (1) US3852735A (enrdf_load_stackoverflow)
JP (1) JPS5411826Y2 (enrdf_load_stackoverflow)

Families Citing this family (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5515946Y2 (enrdf_load_stackoverflow) * 1976-12-06 1980-04-14
JPS5820741B2 (ja) * 1978-10-14 1983-04-25 ファナック株式会社 マシニングセンタの工具交換機構
US4630110A (en) * 1984-02-15 1986-12-16 Supervision Control Systems, Inc. Surveillance system
IT1195131B (it) * 1986-08-08 1988-10-12 Elkron Spa Dispositivo di sorveglianza con elementi sensori all infrarosso ed a radiofrequenza
US4888579A (en) * 1988-09-16 1989-12-19 Minnesota Mining And Manufacturing Company False alarm minimization and direction determination methods
BR9307213A (pt) * 1992-10-07 1999-03-30 Kisch Octrooibureau Aparelho e processo para a classificação do movimento de objetos ao longo de uma passagem
US5606364A (en) * 1994-03-30 1997-02-25 Samsung Aerospace Industries, Ltd. Surveillance system for processing a plurality of signals with a single processor
US9129494B2 (en) * 2012-12-13 2015-09-08 Southern Imperial, Inc. Alarming pusher system
US10993550B2 (en) 2018-03-21 2021-05-04 Fasteners For Retail, Inc. Anti-theft retail merchandise pusher with remote alarm feature
US10885753B2 (en) 2018-03-21 2021-01-05 Fasteners For Retail, Inc. Anti-theft device with remote alarm feature
WO2020206300A1 (en) 2019-04-05 2020-10-08 Fasteners For Retail, Inc. Anti-theft pusher with incremental distance detection
US11154143B2 (en) 2019-09-30 2021-10-26 Fasteners For Retail, Inc. Anti-theft hook with integrated loss prevention functionality

Family Cites Families (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2767393A (en) * 1953-08-03 1956-10-16 Kidde & Co Walter Approach alarm system with unwanted signal elimination
USRE25100E (en) * 1954-04-13 1961-12-19 chapin
US2979706A (en) * 1956-07-02 1961-04-11 Avery H Simon Radio warning system
US3129415A (en) * 1961-01-03 1964-04-14 Westinghouse Electric Corp Proximity detector
US3483437A (en) * 1965-10-23 1969-12-09 Robertshaw Controls Co Detecting switch means
US3634846A (en) * 1969-04-09 1972-01-11 Max Fogiel Intrusion and fire detection system
US3706961A (en) * 1969-05-02 1972-12-19 Nippon Electronics Co Ltd Automatic alarm system
US3673590A (en) * 1969-10-08 1972-06-27 Corvonics Corp Device to detect motion
US3644918A (en) * 1969-12-16 1972-02-22 Detection Systems Inc Integrating circuit using a programmable unijunction transistor
US3728721A (en) * 1971-01-28 1973-04-17 Mosler Safe Co Differential doppler detection for rf intruder alarm systems
US3727216A (en) * 1971-01-28 1973-04-10 Mosler Safe Co Electromagnetic and ultrasonic doppler correlation intrusion alarm system

Also Published As

Publication number Publication date
JPS4828389U (enrdf_load_stackoverflow) 1973-04-06
US3852735A (en) 1974-12-03

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