IT1229151B - Dispositivo di allarme o di segnalazione il cui elemento sensore e' costituito da un cavo coassiale schermato polarizzato in corrente continua - Google Patents

Dispositivo di allarme o di segnalazione il cui elemento sensore e' costituito da un cavo coassiale schermato polarizzato in corrente continua

Info

Publication number
IT1229151B
IT1229151B IT8920058A IT2005889A IT1229151B IT 1229151 B IT1229151 B IT 1229151B IT 8920058 A IT8920058 A IT 8920058A IT 2005889 A IT2005889 A IT 2005889A IT 1229151 B IT1229151 B IT 1229151B
Authority
IT
Italy
Prior art keywords
shielded
alarm
constituted
sensor element
coaxial cable
Prior art date
Application number
IT8920058A
Other languages
English (en)
Other versions
IT8920058A0 (it
Inventor
Enzo Hruby
Raffaele Vizzotto
Original Assignee
Hesa Spa
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 Hesa Spa filed Critical Hesa Spa
Priority to IT8920058A priority Critical patent/IT1229151B/it
Publication of IT8920058A0 publication Critical patent/IT8920058A0/it
Priority to US07/501,125 priority patent/US5068642A/en
Priority to GB9007462A priority patent/GB2231431B/en
Priority to FR9004234A priority patent/FR2645671A1/fr
Priority to DE4010774A priority patent/DE4010774C2/de
Application granted granted Critical
Publication of IT1229151B publication Critical patent/IT1229151B/it

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
    • G08B13/26—Electrical actuation by proximity of an intruder causing variation in capacitance or inductance of a circuit
IT8920058A 1989-04-07 1989-04-07 Dispositivo di allarme o di segnalazione il cui elemento sensore e' costituito da un cavo coassiale schermato polarizzato in corrente continua IT1229151B (it)

Priority Applications (5)

Application Number Priority Date Filing Date Title
IT8920058A IT1229151B (it) 1989-04-07 1989-04-07 Dispositivo di allarme o di segnalazione il cui elemento sensore e' costituito da un cavo coassiale schermato polarizzato in corrente continua
US07/501,125 US5068642A (en) 1989-04-07 1990-03-29 Alarm or warning device with sensing means in the form of a d.c. biased shielded coaxial cable
GB9007462A GB2231431B (en) 1989-04-07 1990-04-03 Alarm or warning device with sensing means in the form of a d.c. biased shielded coaxial cable
FR9004234A FR2645671A1 (fr) 1989-04-07 1990-04-03 Dispositif d'alarme ou de signalisation dans lequel l'element detecteur est constitue par un cable coaxial blinde polarise en courant continu
DE4010774A DE4010774C2 (de) 1989-04-07 1990-04-04 Alarm- oder Meldevorrichtung

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
IT8920058A IT1229151B (it) 1989-04-07 1989-04-07 Dispositivo di allarme o di segnalazione il cui elemento sensore e' costituito da un cavo coassiale schermato polarizzato in corrente continua

Publications (2)

Publication Number Publication Date
IT8920058A0 IT8920058A0 (it) 1989-04-07
IT1229151B true IT1229151B (it) 1991-07-22

Family

ID=11163473

Family Applications (1)

Application Number Title Priority Date Filing Date
IT8920058A IT1229151B (it) 1989-04-07 1989-04-07 Dispositivo di allarme o di segnalazione il cui elemento sensore e' costituito da un cavo coassiale schermato polarizzato in corrente continua

Country Status (5)

Country Link
US (1) US5068642A (it)
DE (1) DE4010774C2 (it)
FR (1) FR2645671A1 (it)
GB (1) GB2231431B (it)
IT (1) IT1229151B (it)

Families Citing this family (16)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5353744A (en) * 1991-05-14 1994-10-11 Dogwatch, Inc. Animal control apparatus
US5446446A (en) * 1993-12-09 1995-08-29 Southwest Microwave, Inc. Differential, multiple cell reflex cable intrusion detection system and method
US5448222A (en) * 1993-12-09 1995-09-05 Southwest Microwave, Inc. Coupled transmission line sensor cable and method
DE4429306A1 (de) * 1994-08-18 1996-02-22 Johannes Hermann Dr Wahl Bettlichtschrankenüberwachungssystem
US5510768A (en) * 1994-10-11 1996-04-23 Mann; Glenn E. Alarm strap for luggage
US6079367A (en) * 1997-10-10 2000-06-27 Dogwatch, Inc. Animal training apparatus and method
CA2532651C (en) * 2003-08-01 2014-06-03 Senstar-Stellar Corporation Cable guided intrusion detection sensor, system and method
US7256727B2 (en) * 2005-01-07 2007-08-14 Time Domain Corporation System and method for radiating RF waveforms using discontinues associated with a utility transmission line
US20070109135A1 (en) * 2005-11-03 2007-05-17 Dogwatch Inc. Transmitter loop monitor
TW200830828A (en) * 2006-11-07 2008-07-16 Sony Corp Communication system, transmitting device, receiving device, communication method, program and communication cable
US8006649B2 (en) * 2007-09-14 2011-08-30 Dogwatch Inc. Animal control system having correction monitor
US8249501B2 (en) * 2008-05-05 2012-08-21 International Business Machines Corporation Self-detecting electronic connection for electronic devices
ITBA20090007A1 (it) * 2009-02-03 2009-05-05 Rocco Carone Sensore capacitivo di presenza per antintrusione e comando
FR2966958A1 (fr) 2010-10-29 2012-05-04 Sorhea Cloture avec detection localise d'intrusion.
US9441884B2 (en) * 2012-05-10 2016-09-13 Norgren Automation Solutions, Llc Method and apparatus for automatically drying wet floors
US10902710B2 (en) 2016-05-12 2021-01-26 Fiber Sensys, Inc. MIMO cable guided intrusion detection sensor

Family Cites Families (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CA871366A (en) * 1969-05-21 1971-05-18 Duval Francois Alarm means
DE2113053A1 (de) * 1970-03-19 1971-09-30 Kureha Chemical Ind Co Ltd Verfahren und Vorrichtung zum Steuern eines elektrischen Stromkreises
US3760794A (en) * 1971-09-01 1973-09-25 Electronic Monitors Inc Respiration monitoring apparatus and method
US3846780A (en) * 1973-07-24 1974-11-05 Westinghouse Electric Corp Intrusion detection system
US3947835A (en) * 1974-07-01 1976-03-30 Gte Sylvania Incorporated Fence protection system
US4197529A (en) * 1978-02-17 1980-04-08 The United States Of America As Represented By The Secretary Of The Navy Intrusion detection apparatus
FR2487555A1 (fr) * 1980-07-28 1982-01-29 Automatisme Cie Gle Detecteur de passage d'objets pesants sur une chaussee
CA1280487C (en) * 1986-11-06 1991-02-19 Senstar-Stellar Corporation Intrusion detection system

Also Published As

Publication number Publication date
FR2645671A1 (fr) 1990-10-12
DE4010774A1 (de) 1990-10-11
GB2231431A (en) 1990-11-14
GB9007462D0 (en) 1990-05-30
IT8920058A0 (it) 1989-04-07
US5068642A (en) 1991-11-26
DE4010774C2 (de) 1995-12-14
FR2645671B1 (it) 1994-04-22
GB2231431B (en) 1993-01-13

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Legal Events

Date Code Title Description
TA Fee payment date (situation as of event date), data collected since 19931001

Effective date: 19970313