FR2434437A1 - Appareil avertisseur detectant une intrusion sur une surface surveillee - Google Patents

Appareil avertisseur detectant une intrusion sur une surface surveillee

Info

Publication number
FR2434437A1
FR2434437A1 FR7920078A FR7920078A FR2434437A1 FR 2434437 A1 FR2434437 A1 FR 2434437A1 FR 7920078 A FR7920078 A FR 7920078A FR 7920078 A FR7920078 A FR 7920078A FR 2434437 A1 FR2434437 A1 FR 2434437A1
Authority
FR
France
Prior art keywords
intrusion
warning apparatus
apparatus detecting
surface monitored
liquid
Prior art date
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
FR7920078A
Other languages
English (en)
French (fr)
Other versions
FR2434437B1 (enExample
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
ITALCONTROL Srl
Original Assignee
ITALCONTROL Srl
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 ITALCONTROL Srl filed Critical ITALCONTROL Srl
Publication of FR2434437A1 publication Critical patent/FR2434437A1/fr
Application granted granted Critical
Publication of FR2434437B1 publication Critical patent/FR2434437B1/fr
Granted 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
    • G08B13/20—Actuation by change of fluid pressure

Landscapes

  • Physics & Mathematics (AREA)
  • Fluid Mechanics (AREA)
  • General Physics & Mathematics (AREA)
  • Geophysics And Detection Of Objects (AREA)
  • Emergency Alarm Devices (AREA)
  • Burglar Alarm Systems (AREA)
  • Measuring Fluid Pressure (AREA)
FR7920078A 1978-08-24 1979-08-06 Appareil avertisseur detectant une intrusion sur une surface surveillee Granted FR2434437A1 (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
IT68965/78A IT1111490B (it) 1978-08-24 1978-08-24 Perfezionamenti ad elementi di apparecchi segnalatori di intrusione in una superficie chiusa

Publications (2)

Publication Number Publication Date
FR2434437A1 true FR2434437A1 (fr) 1980-03-21
FR2434437B1 FR2434437B1 (enExample) 1985-04-19

Family

ID=11311023

Family Applications (1)

Application Number Title Priority Date Filing Date
FR7920078A Granted FR2434437A1 (fr) 1978-08-24 1979-08-06 Appareil avertisseur detectant une intrusion sur une surface surveillee

Country Status (10)

Country Link
US (1) US4270122A (enExample)
AT (1) AT381404B (enExample)
BE (1) BE878175A (enExample)
CH (1) CH643670A5 (enExample)
DE (1) DE2931179A1 (enExample)
ES (1) ES483601A1 (enExample)
FR (1) FR2434437A1 (enExample)
GB (1) GB2029062B (enExample)
IT (1) IT1111490B (enExample)
NL (1) NL190132C (enExample)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2182182B (en) * 1985-04-24 1989-06-28 Sound Special Services Limited Intrusion detecting device
IT1182588B (it) * 1985-10-04 1987-10-05 Elkron Spa Apparecchiatura perfezionata per segnalare il passaggio di un intruso attraverso il confine di una regione predeterminata
US8659424B2 (en) * 2009-02-09 2014-02-25 Raytheon BBN Technologies, Corp. Subsurface intrusion detection system
IL303092A (en) * 2015-09-17 2023-07-01 Stanley Convergent Security Solutions Inc Perimeter vibration detection system and method

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3438021A (en) * 1965-07-26 1969-04-08 Westinghouse Electric Corp Perimeter intrusion alarm
GB1272908A (en) * 1969-09-15 1972-05-03 Westinghouse Electric Corp Improved pressure sensitive security apparatus
FR2250166A1 (en) * 1973-11-05 1975-05-30 Cogny Pierre Pressure sensitive security barrier - has tubes connected to sensor detecting change produced by compressor

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3109165A (en) * 1958-09-05 1963-10-29 Specialties Dev Corp Intruder detecting system
US3665445A (en) * 1970-12-22 1972-05-23 Scient Security Systems Inc Detection system
US4081785A (en) * 1974-02-13 1978-03-28 The United States Of America As Represented By The Secretary Of The Air Force Dual class amphibious target discriminator
IL52286A (en) * 1976-06-23 1979-12-30 Multisafe Ag Burglar alarm

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3438021A (en) * 1965-07-26 1969-04-08 Westinghouse Electric Corp Perimeter intrusion alarm
GB1272908A (en) * 1969-09-15 1972-05-03 Westinghouse Electric Corp Improved pressure sensitive security apparatus
FR2250166A1 (en) * 1973-11-05 1975-05-30 Cogny Pierre Pressure sensitive security barrier - has tubes connected to sensor detecting change produced by compressor

Also Published As

Publication number Publication date
NL7906198A (nl) 1980-02-26
GB2029062B (en) 1982-11-17
US4270122A (en) 1981-05-26
ATA526979A (de) 1986-02-15
NL190132C (nl) 1993-11-01
BE878175A (fr) 1979-12-03
GB2029062A (en) 1980-03-12
AT381404B (de) 1986-10-10
DE2931179C2 (enExample) 1991-07-18
DE2931179A1 (de) 1980-03-06
NL190132B (nl) 1993-06-01
ES483601A1 (es) 1980-09-01
CH643670A5 (de) 1984-06-15
IT1111490B (it) 1986-01-13
IT7868965A0 (it) 1978-08-24
FR2434437B1 (enExample) 1985-04-19

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