IT973963B - Apparecchio d allarme per segnala re la presenza di estranei in aree protette - Google Patents

Apparecchio d allarme per segnala re la presenza di estranei in aree protette

Info

Publication number
IT973963B
IT973963B IT54568/72A IT5456872A IT973963B IT 973963 B IT973963 B IT 973963B IT 54568/72 A IT54568/72 A IT 54568/72A IT 5456872 A IT5456872 A IT 5456872A IT 973963 B IT973963 B IT 973963B
Authority
IT
Italy
Prior art keywords
foreigners
signal
alarm device
protected areas
protected
Prior art date
Application number
IT54568/72A
Other languages
English (en)
Italian (it)
Original Assignee
Webster Co 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 Webster Co Inc filed Critical Webster Co Inc
Application granted granted Critical
Publication of IT973963B publication Critical patent/IT973963B/it

Links

Classifications

    • G—PHYSICS
    • G08—SIGNALLING
    • G08B—SIGNALLING OR CALLING SYSTEMS; ORDER TELEGRAPHS; ALARM SYSTEMS
    • G08B13/00—Burglar, theft or intruder alarms
    • G08B13/16—Actuation by interference with mechanical vibrations in air or other fluid
    • G08B13/1609—Actuation by interference with mechanical vibrations in air or other fluid using active vibration detection systems

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Burglar Alarm Systems (AREA)
  • Fixing For Electrophotography (AREA)
IT54568/72A 1971-12-13 1972-12-07 Apparecchio d allarme per segnala re la presenza di estranei in aree protette IT973963B (it)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US20746671A 1971-12-13 1971-12-13

Publications (1)

Publication Number Publication Date
IT973963B true IT973963B (it) 1974-06-10

Family

ID=22770666

Family Applications (1)

Application Number Title Priority Date Filing Date
IT54568/72A IT973963B (it) 1971-12-13 1972-12-07 Apparecchio d allarme per segnala re la presenza di estranei in aree protette

Country Status (7)

Country Link
US (1) US3754222A (enExample)
JP (1) JPS566039B2 (enExample)
CA (1) CA964759A (enExample)
DE (1) DE2260618C3 (enExample)
FR (1) FR2163463B1 (enExample)
GB (1) GB1414505A (enExample)
IT (1) IT973963B (enExample)

Families Citing this family (15)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS50140390U (enExample) * 1974-05-02 1975-11-19
US3944934A (en) * 1974-11-21 1976-03-16 Milwaukee Resistor Corporation False triggering prevention circuit
US4097853A (en) * 1976-09-20 1978-06-27 Milwaukee Resistor Corporation Means for distinguishing motion from noise in an intrusion alarm system
US4129856A (en) * 1976-11-15 1978-12-12 Contronic Controls Limited Filter system and method for intrusion alarm
US4107684A (en) * 1977-05-02 1978-08-15 E-Systems, Inc. Phase locked detector
JPS61941A (ja) * 1984-06-13 1986-01-06 Matsushita Electric Ind Co Ltd 半導体レ−ザ光ピツクアツプ装置
GB2302406B (en) * 1995-06-19 1999-08-25 Bright Star Entpr Ltd Apparatus for detecting the breaching of a closed environment
US6040765A (en) * 1998-01-23 2000-03-21 Armatron International, Inc. Obstacle detection system built-in test method and apparatus
US7245315B2 (en) * 2002-05-20 2007-07-17 Simmonds Precision Products, Inc. Distinguishing between fire and non-fire conditions using cameras
US7256818B2 (en) * 2002-05-20 2007-08-14 Simmonds Precision Products, Inc. Detecting fire using cameras
US7280696B2 (en) * 2002-05-20 2007-10-09 Simmonds Precision Products, Inc. Video detection/verification system
AU2003251302A1 (en) * 2002-05-20 2003-12-22 Simmonds Precision Products, Inc. Video detection verification system
US7535351B2 (en) 2006-07-24 2009-05-19 Welles Reymond Acoustic intrusion detection system
US9997035B1 (en) 2017-03-01 2018-06-12 Samuel L. Thomasson Acoustic security system and method
CN113450537B (zh) * 2021-06-25 2023-05-30 北京小米移动软件有限公司 跌倒检测方法、装置、电子设备和存储介质

Family Cites Families (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US25100A (en) * 1859-08-16 de fokest
US2066156A (en) * 1929-04-25 1936-12-29 Muffly Glenn Signaling means
US2541066A (en) * 1943-11-24 1951-02-13 Sperry Corp Object detecting and warning system and method
US2791756A (en) * 1946-06-11 1957-05-07 Leon G S Wood Target doppler indicator
USRE25100E (en) * 1954-04-13 1961-12-19 chapin
US3394342A (en) * 1965-09-13 1968-07-23 Walker Philip Hulme Ultrasonic object detection systems
DE1791060C3 (de) * 1968-09-05 1975-08-14 Alois Zettler Elektrotechnische Fabrik Gmbh, 8000 Muenchen Elektroakustische Anlage
US3582870A (en) * 1969-03-10 1971-06-01 Normda Ind Inc Ultrasonic detection system
US3585577A (en) * 1969-06-12 1971-06-15 Southwest Res Inst Ultrasonic transceiver

Also Published As

Publication number Publication date
CA964759A (en) 1975-03-18
FR2163463B1 (enExample) 1977-08-26
DE2260618C3 (de) 1981-09-24
DE2260618B2 (de) 1980-12-11
JPS4866795A (enExample) 1973-09-12
JPS566039B2 (enExample) 1981-02-09
FR2163463A1 (enExample) 1973-07-27
DE2260618A1 (de) 1973-06-20
US3754222A (en) 1973-08-21
GB1414505A (en) 1975-11-19

Similar Documents

Publication Publication Date Title
IT982755B (it) Sistema ottico per dirigere ed ampliare il campo visivo
IT950945B (it) Sistema rivelatore di individui intrusi in uno spazio protetto
BE794184A (fr) Dispositif d'alarme
IT959975B (it) Borsa in particolare borsa per bagno
IT1056022B (it) Dispositivo per distruggere gliinsetti
IT973963B (it) Apparecchio d allarme per segnala re la presenza di estranei in aree protette
IT946253B (it) Dispositivo per rivelare furti di articoli
BE774523Q (nl) Breek- en schepinrichting
IT953771B (it) Dispositivo termico di protezione o di avvertimento
BE781135A (fr) Appareil de protection cathodique
TR17771A (tr) Tellerin veya buekuelmues tellerin tesbit edilmesine mahsus tertibat
SE395821B (sv) Anvendning av l-aspartyl-l-fenylalaninmetylester for att oka fruktaromen i fruktprodukter
BE789942A (fr) Appareil avertisseur d'incendie
CH486746A (fr) Dispositif d'alarme
BR7206212D0 (pt) Aperfeicoamentos em relede protecao estatico de sistema newwork
CA960854A (en) System enabling the detection of a movement of one element in relation to another
IT967630B (it) Sistema elettronico di sicurezza
IT952746B (it) Dispositivo di bloccaggio e di allarme
SE391092B (sv) Signalbegrensare
IT959524B (it) Dispositivo d accoppiamento di sicurezza
BE746479A (fr) Dispositif transducteur
TR17184A (tr) Difenilamin ve bunun muestakkinin istihsal edimesi icin usul
IT1002167B (it) Dispositivo per il rilevamento e la selezione degli scarti da gettare
SE388330B (sv) Signalbehandlingsanordning
AT311302B (de) Granuliervorrichtung