JPS4828389U - - Google Patents

Info

Publication number
JPS4828389U
JPS4828389U JP1971071230U JP7123071U JPS4828389U JP S4828389 U JPS4828389 U JP S4828389U JP 1971071230 U JP1971071230 U JP 1971071230U JP 7123071 U JP7123071 U JP 7123071U JP S4828389 U JPS4828389 U JP S4828389U
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.)
Granted
Application number
JP1971071230U
Other languages
Japanese (ja)
Other versions
JPS5411826Y2 (en
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 (en)

Priority Applications (2)

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

Publications (2)

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

Family

ID=27969209

Family Applications (1)

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

Country Status (2)

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

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5380188U (en) * 1976-12-06 1978-07-04
JPS5554152A (en) * 1978-10-14 1980-04-21 Fanuc Ltd Tool replacing mechanism for machining center

Families Citing this family (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4630110A (en) * 1984-02-15 1986-12-16 Supervision Control Systems, Inc. Surveillance system
IT1195131B (en) * 1986-08-08 1988-10-12 Elkron Spa SURVEILLANCE DEVICE WITH INFRARED AND RADIO FREQUENCY SENSOR ELEMENTS
US4888579A (en) * 1988-09-16 1989-12-19 Minnesota Mining And Manufacturing Company False alarm minimization and direction determination methods
WO1994008258A1 (en) * 1992-10-07 1994-04-14 Octrooibureau Kisch N.V. Apparatus and a method for classifying movement of objects along a passage
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
MX2021011479A (en) 2019-04-05 2021-11-12 Fasteners For Retail Inc Anti-theft pusher with incremental distance detection.

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
US3727216A (en) * 1971-01-28 1973-04-10 Mosler Safe Co Electromagnetic and ultrasonic doppler correlation intrusion alarm system
US3728721A (en) * 1971-01-28 1973-04-17 Mosler Safe Co Differential doppler detection for rf intruder alarm systems

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5380188U (en) * 1976-12-06 1978-07-04
JPS5515946Y2 (en) * 1976-12-06 1980-04-14
JPS5554152A (en) * 1978-10-14 1980-04-21 Fanuc Ltd Tool replacing mechanism for machining center
JPS5820741B2 (en) * 1978-10-14 1983-04-25 ファナック株式会社 Machining center tool change mechanism

Also Published As

Publication number Publication date
JPS5411826Y2 (en) 1979-05-25
US3852735A (en) 1974-12-03

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