DE3061454D1 - Security fence - Google Patents

Security fence

Info

Publication number
DE3061454D1
DE3061454D1 DE8080200028T DE3061454T DE3061454D1 DE 3061454 D1 DE3061454 D1 DE 3061454D1 DE 8080200028 T DE8080200028 T DE 8080200028T DE 3061454 T DE3061454 T DE 3061454T DE 3061454 D1 DE3061454 D1 DE 3061454D1
Authority
DE
Germany
Prior art keywords
wire
security fence
chambers
sealing element
detector comprises
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.)
Expired
Application number
DE8080200028T
Other languages
German (de)
Inventor
Gabriel Dewaegheneire
Leo Anrijs
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.)
Bekaert NV SA
Original Assignee
Bekaert NV SA
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 Bekaert NV SA filed Critical Bekaert NV SA
Application granted granted Critical
Publication of DE3061454D1 publication Critical patent/DE3061454D1/en
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
    • G08B13/02—Mechanical actuation
    • G08B13/12—Mechanical actuation by the breaking or disturbance of stretched cords or wires
    • G08B13/122—Mechanical actuation by the breaking or disturbance of stretched cords or wires for a perimeter fence

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Burglar Alarm Systems (AREA)
  • Forging (AREA)
  • Control Of Combustion (AREA)
  • Developing Agents For Electrophotography (AREA)
  • Materials For Medical Uses (AREA)
  • Fencing (AREA)

Abstract

This invention relates to a security fence including at least one tensioned wire connected to a detector for sensing movement of the wire. The detector comprises a movable element which sealingly separates two chambers in such a manner that any movement of the sealing element produces a change in volume of at least one of the chambers, which one chamber is connected to a pressure-sensitive switch actuator. Preferably, the said detector comprises an air cylinder with a piston which constitutes the said sealing element and is connected to the said wire.
DE8080200028T 1979-01-30 1980-01-14 Security fence Expired DE3061454D1 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
NL7900735A NL7900735A (en) 1979-01-30 1979-01-30 SECURED FENCE.

Publications (1)

Publication Number Publication Date
DE3061454D1 true DE3061454D1 (en) 1983-02-03

Family

ID=19832549

Family Applications (1)

Application Number Title Priority Date Filing Date
DE8080200028T Expired DE3061454D1 (en) 1979-01-30 1980-01-14 Security fence

Country Status (11)

Country Link
EP (1) EP0014009B1 (en)
JP (1) JPS55123797A (en)
AT (1) ATE2163T1 (en)
BE (1) BE881393A (en)
BR (1) BR8000555A (en)
DE (1) DE3061454D1 (en)
DK (1) DK34780A (en)
GB (1) GB2041609B (en)
NL (1) NL7900735A (en)
NO (1) NO800184L (en)
ZA (1) ZA80197B (en)

Families Citing this family (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3012389A1 (en) * 1980-03-29 1981-10-08 Schulz Electronic GmbH, 3101 Hambühren Security fence with surveillance sensors - has mounting plate for outrigger carrying fence wires and covering sensor
DE3211647A1 (en) * 1982-03-30 1983-10-06 Schulz Celler Drahtwaren Device on fences or the like which serves for triggering a signal
IL70087A (en) * 1983-10-30 1988-06-30 Israel Aircraft Ind Ltd Taut wire fence system
GB2164183A (en) * 1984-08-17 1986-03-12 Alan John Pepper Intruder detecting fences
GB2243933B (en) * 1990-05-11 1994-03-02 Autoliv Dev Improvements in or relating to a collision sensor
FR2820865B1 (en) * 2001-02-09 2003-04-18 Serpe Iesm Soc D Etudes Et De INTRUSION DETECTOR DEVICE FOR FENCE
GB2409085B (en) * 2003-12-11 2006-06-28 John Mcrae Perimeter wall security systems
ES2374464B1 (en) * 2009-07-16 2012-10-19 Representaciones Tecnológicas Para Obras Públicas S.L. IMPROVEMENTS IN THE OBJECT OF THE PATENT N. P 200900175 BY: DEVICE FOR DETECTION OF FALLING ELEMENTS.
CN110160772B (en) * 2019-06-27 2024-04-19 李文斌 Bolt failure detection device

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR344983A (en) * 1904-07-20 1904-11-18 Hermann Erndt Alarm for wire barriers
DE1959229C3 (en) * 1968-07-19 1978-12-21 Israel Aircraft Industries, Ltd., Lod Airport (Israel) Electrical switch actuated by sudden movement of an outer member and comprising a flowable material
FR2296890A1 (en) * 1975-01-06 1976-07-30 Desneux Bernard Wire controlled spring actuated alarm device - has spring alarm mechanism housed in cartridge with external trip wire to control tension on spring

Also Published As

Publication number Publication date
ZA80197B (en) 1980-12-31
GB2041609A (en) 1980-09-10
NO800184L (en) 1980-07-31
GB2041609B (en) 1982-12-22
DK34780A (en) 1980-07-31
ATE2163T1 (en) 1983-01-15
BE881393A (en) 1980-07-29
BR8000555A (en) 1980-10-21
JPS55123797A (en) 1980-09-24
EP0014009B1 (en) 1982-12-29
NL7900735A (en) 1980-08-01
EP0014009A1 (en) 1980-08-06

Similar Documents

Publication Publication Date Title
ATE108518T1 (en) DOUBLE DIAPHRAGM PUMP.
GB2047304B (en) Piston actuated well safety valve
DE3061454D1 (en) Security fence
DE68916863D1 (en) Gas spring with several pressure chambers arranged one behind the other.
NL194649B (en) Valve assembly, as well as housing with bag and movable head with position sensor.
AR214798A1 (en) PRESSURE CONTROL VALVE
FR2586771B1 (en) LOCKABLE PNEUMATIC SPRING
ES249116U (en) Vacuum brake booster
SE7907255L (en) WARNING SIGNAL DEVICE FOR RESPIRATORY PROTECTORS WITH PRESSURE GAS STORAGE
DE69205536D1 (en) Compressed air seal for the combustion chamber.
FR2317563A1 (en) Gas spring with slidable piston - having axial passages closed by skirt on extension movement and by sprung sliding element
DE69116626D1 (en) Cartridge type gas pressure control valve
FI901837A0 (en) Gas cylinder valve handwheel
TR26832A (en) Safety valve operated with control piston
SE9802996D0 (en) A protection device for controlling the motion of a pneumatic actuator
SE8305068L (en) PNEUMATIC ADJUSTMENT DEVICE
IT1284617B1 (en) TWO-WAY SAFETY PILOT VALVE OF THE PRESSURE SENSING TYPE.
FR2574900B1 (en) PRESSURE DETECTOR
ES8500648A1 (en) Safety valve control device.
ATE16911T1 (en) PNEUMATIC CONTROL DEVICE.
SU825107A1 (en) Locking device for compressed gas cylinder
SU496411A1 (en) Safety two-stage valve
DK526277A (en) IONIZATION CHAMBER NAMELY FOR THE ROEG SENSOR BODY
GB9017688D0 (en) Combustion chamber pressure sensor
DE68907637D1 (en) COMPRESSED GAS PISTON CYLINDER ARRANGEMENT.

Legal Events

Date Code Title Description
8339 Ceased/non-payment of the annual fee