EP0726550A1 - Method to deliver a gas with an anti-theft function and relative device - Google Patents

Method to deliver a gas with an anti-theft function and relative device Download PDF

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Publication number
EP0726550A1
EP0726550A1 EP96101057A EP96101057A EP0726550A1 EP 0726550 A1 EP0726550 A1 EP 0726550A1 EP 96101057 A EP96101057 A EP 96101057A EP 96101057 A EP96101057 A EP 96101057A EP 0726550 A1 EP0726550 A1 EP 0726550A1
Authority
EP
European Patent Office
Prior art keywords
container means
substance
combustion
liquid substance
container
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.)
Withdrawn
Application number
EP96101057A
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German (de)
English (en)
French (fr)
Inventor
Claudio Ricci
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.)
Individual
Original Assignee
Individual
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 Individual filed Critical Individual
Publication of EP0726550A1 publication Critical patent/EP0726550A1/en
Withdrawn legal-status Critical Current

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Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F41—WEAPONS
    • F41H—ARMOUR; ARMOURED TURRETS; ARMOURED OR ARMED VEHICLES; MEANS OF ATTACK OR DEFENCE, e.g. CAMOUFLAGE, IN GENERAL
    • F41H9/00—Equipment for attack or defence by spreading flame, gas or smoke or leurres; Chemical warfare equipment
    • F41H9/06—Apparatus for generating artificial fog or smoke screens
    • G—PHYSICS
    • G08—SIGNALLING
    • G08B—SIGNALLING OR CALLING SYSTEMS; ORDER TELEGRAPHS; ALARM SYSTEMS
    • G08B15/00—Identifying, scaring or incapacitating burglars, thieves or intruders, e.g. by explosives
    • G08B15/02—Identifying, scaring or incapacitating burglars, thieves or intruders, e.g. by explosives with smoke, gas, or coloured or odorous powder or liquid

Definitions

  • This invention concerns a method and the relative device to deliver a gas with an anti-theft function, as set forth in the respective main claims.
  • the invention has been conceived for use within premises in a building and has the purpose of delivering quickly a quantity of gas or smoke able to saturate those premises, thus making difficult the vision and movement of persons unlawfully present at that time within those premises.
  • This delivery of gas or smoke has the purpose also of assisting possible identification, from the outside, of the occurrence of anomalous situations within those premises.
  • the device to deliver gas according to the invention is, advantageously but not only, connected to the common anti-theft security devices present in dwellings or premises in general and obtains advantageously from those devices the signal for its own activation.
  • the device according to the invention can also be used on movable means for the carriage of persons and/or goods such as caravans, campers, trailers, motor vehicles, etc.
  • the state of the art includes the anti-intrusion security devices normally arranged within dwellings, commercial premises, buildings in general or even motor vehicles for the purpose of preventing attempts at thefts.
  • These security systems are able to provide a wide range of alarm signals of an acoustic and/or visual type both in the immediate vicinity of the premises or motor vehicle subject to the attempt of theft and possibly in premises at a distance, such as a suitably connected police station for instance.
  • the security systems of the state of the art can be put out of action, for instance by interruption of the electricity supply.
  • Any security systems additional to the simple acoustic and/or visual alarms should not cause damage within the premises to be protected nor should they cause serious problems in the event of undesired activation by the owner or user of the premises or of the motor vehicle.
  • the state of the art discloses security systems which employ devices delivering non-toxic gases having the appearance of smoke; these devices are normally activated by the conventional security system of the premises in which they are installed.
  • These devices to deliver gas comprise typically means to generate a vapour having the appearance of smoke, means to distribute this vapour within the premises, starter means generally associated with the conventional anti-intrusion means included in the premises and electricity supply means.
  • the devices to deliver gas of the state of the art entail a plurality of shortcomings.
  • the devices of the state of the art are generally connected to an external supply source, from which they receive the electrical energy for activation and carrying out of the process of delivery of the gas.
  • the delivery devices of the state of the art are also generally not compact nor easy to handle.
  • the purpose of the invention is to embody a device for the delivery of gas or smoke with an anti-theft function, the device being able also to be associated with conventional anti-intrusion security systems and providing an effective instrument for the active protection of premises or motor vehicles against possible attempts at theft.
  • Another purpose of the invention is to provide a device to deliver gas which is simple, very functional and reliable, versatile, economical, capable of being readily recharged after use with a very modest consumption of electrical energy and having very modest dimensions.
  • Yet another purpose of the invention is to provide a device which requires only a minimum quantity of electrical energy for its initial ignition and is then fully independent from an energy point of view and is only disactivated when its own internal source of supply has been exhausted.
  • the device to deliver gas according to the invention comprises first container means which contain in the liquid state the substance which, upon activation of the device, is vaporised and is then delivered and distributed in the form of smoke in a desired manner.
  • this device comprises also second container means which contain a mixture consisting of at least one combustible substance and at least one combustion-supporting substance, this mixture being located in cooperation with at least one source of ignition.
  • conduit means include at least one inlet associated with the first container means holding the liquid substance to be vaporised and at least one outlet for the delivery and distribution of the vaporised substance.
  • the source of ignition starts the ignition of the combustible/combustion-supporting mixture contained in the second container means, and this ignition causes a combustion reaction within the second container means.
  • the combustion proceeds independently and feeds itself until the mixture has been completely exhausted.
  • the liquid substance is induced to flow within the conduit means, follows a path in direct contact with the outer sidewall of the second container means, is vaporised by heat exchange and emerges from the conduit means in the vaporised state.
  • the second container means holding the combustible/combustion-supporting mixture are associated with cover means which comprise at least filtering means which prevent the emerging of the cinders of the combustion but let the air pass through.
  • these cover means include also sealing means which prevent the entry of humidity into the second container means during inactive conditions.
  • first and second container means are separate components at a distance from each other and are connected by conduit means by means of at least one shut-off valve.
  • first and second container means have reciprocally mating conformations and are associated with each other by the coupling of their shapes and can be detached from each other so as to permit an easy recharging process after use.
  • the first and second container means are provided by dividing into two separate chambers a containing element consisting of one single piece, these separate chambers including at least means for access to enable recharging to be carried out after use.
  • a device 10 to deliver smoke is shown in Fig.1 in its first preferred form and comprises at least first container means 11 holding a substance 16 in the liquid state to be vaporised.
  • This substance 16 in the liquid state consists advantageously of glycol to which water is added for the purpose of preventing decomposition and of enhancing the stabilisation of the mixture.
  • first container means 11 advantageously include an upper chamber 11a, which is possibly divided by a resilient membrane 45 and which holds air, nitrogen or another inert gas under pressure.
  • first container means 11 are associated by means of a conduit 12 with a coil 13 arranged peripherally in direct contact with the outer sidewall of second container means 14.
  • the combustible substance consists of zinc (60%), whereas the combustion-supporting substance consists of manganese dioxide (40%) or barium chromate, but other like or analogous substances can be used equally well within the scope of the invention.
  • a source of ignition is inserted into the second container means 14 and consists in this case of a small resistor 15 associated with a source of electric supply 18.
  • the resistor 15 is connected by electric cables 19 to a switch 20, which is normally switched off and is associated with a conventional anti-intrusion security system 21.
  • the switch 20 when the security system 21 detects the presence of an intruder within the premises where it is installed, the switch 20 is switched on and the source 18 supplies a feed impulse to the resistor 15.
  • This impulse provides the ignition for start-up of the combustion of the mixture 17 in the second container means 14.
  • the resistor 15 is associated with means 43 that propagate the flame.
  • a temperature measurement means such as a thermostat 22, is included on the sidewall of the coil 13 and is positioned in immediate proximity to the outer sidewall of the second container means 14.
  • the thermostat 22 sends a signal for the opening of a valve 23 located on the conduit 12, and this valve 23 enables the liquid substance 16 to pass from the first container means 11 to the coil 13.
  • a choke or a gauging hole 26 is included on the conduit 12 feeding the liquid substance 16 so as to dose as required the quantity of the liquid substance 16 being fed to the coil 13.
  • the liquid substance 16 is thus caused to flow in close contact with the outer sidewall of the second container means 14, from which the liquid substance 16 obtains heat by heat exchange and changes progressively to the state of a vapour.
  • the substance 16 in the state of a vapour is thus delivered through an outlet nozzle 24 in the form of a gas having the appearance of smoke 25 and is then distributed as required within the premises or the vehicle in which the device 10 is installed.
  • the first container means 11 are associated at least with a pressure switch 27 which detects anomalous situations.
  • an assembly 49 having the function of a valve is included in cooperation with the sidewall of the coil 13 and in immediate proximity to the sidewall of the second container means 14.
  • This assembly 49 having the function of a valve comprises within itself at least one element 48 shaped as a disk or a small plate consisting of tin, plastic or another material suitable to be destroyed at high temperatures.
  • the first container means 11 do not include a separate chamber with air or another gas under pressure, but that air or other gas under pressure is held within third containing means 50.
  • valve assembly 49 frees the passage for the air under pressure, which through a pipe 51 causes the pneumatic thrust to feed the liquid substance 16 to the coil 13.
  • a safety stopper 52 in addition to the gauging hole 26, is included on the feed line from the first container means 11 to the coil 13 and is disactivated by the passage of the fluid under pressure in the step of activation of the delivery device 10.
  • the outlet nozzle 24 cooperates with an element conformed as a Venturi tube 46, by means of which a mixture 47 of the gas in the form of smoke with the outside air is obtained.
  • This mixture 47 has the purpose of cooling the gas in the form of smoke before its delivery, and thus of preventing condensation of the gas along the distribution pipes.
  • This embodiment is recommended in particular in the case of distribution of this gas through suitable conveying pipes to a plurality of premises which may even be distanced from each other.
  • the invention arranges to use a combustible/combustion-supporting mixture 17, such as sodium-azide for instance, the reaction of which produces a flow of inert combustion gas.
  • a combustible/combustion-supporting mixture 17 such as sodium-azide for instance, the reaction of which produces a flow of inert combustion gas.
  • these combustion gases are collected and conveyed into the Venturi tube element 46 to cause a further increase of heat contribution and the mechanical conveying of the gas delivered through the outlet nozzle 24.
  • Fig.4 fourth container means 53 are included in direct cooperation with the second container means 14 and hold within them a mixture with is self-igniting at high temperatures and which produces combustion gases as a result of the reaction.
  • the invention arranges to collect these combustion gases and to convey them towards the first container means 11 and possibly to feed them in required quantities and pressures through the gauging hole 26 so as to use their mechanical force for the purpose of thrusting the liquid substance 16 into the coil 13.
  • the second container means 14 include at their upper end at least one filter element 28, which has the task of preventing the exit of the combustion residues and at the same time of letting the internal air expand.
  • the second container means 14 are also associated with closure means such as a stopper 29 (Fig.1); this stopper 29 includes at least one pipe 30 communicating with the exterior so as to permit the passage of air.
  • closure means such as a stopper 29 (Fig.1); this stopper 29 includes at least one pipe 30 communicating with the exterior so as to permit the passage of air.
  • a closure membrane 31 is included in correspondence with the pipe 30 and, when the delivery device 10 is inactive, prevents the passage of air from the exterior so as to obviate occurrences of humidity in the mixture 17 held within the second container means 14.
  • This closure membrane 31 has a structure such that it melts, or is destroyed, upon start-up of the combustion because of the increase of the temperature or resulting pressure, thus freeing the pipe 30 and enabling the air to pass through freely.
  • an outer lining 34 is included on the coil 13 and consists of a thermally insulating material able to reduce heat exchange between the delivery device 10 and the exterior and to prevent damage to the neighbouring component structures.
  • the second container means 14 can be replaced whenever the delivery device 10 has been used.
  • the first 11 and second 14 container means are integrated into one single container and are associated with each other by the mating of their forms.
  • FIG.7 shows a case in which the second container means 14 are positioned directly within the first container means 11, and the coil 13 is embodied directly on the sidewalls of the first container means 11 cooperating with the sidewalls of the second container means 14.
  • the second container means 14 are contained within a space provided in the first container means 11 and include a coil 13 in direct contact with the outer sidewalls of the second container means 14; this coil 13 is fed from the liquid solution 16 held in the first container means 11.
  • the second container means 14 have a section formed substantially as an overturned "U”, which cooperates with the section of the first container means 11 formed substantially as an overturned "T".
  • an open aspiration conduit 32 the intake 33 of which is positioned substantially in the proximity of the bottom of the first container means 11, is included in the first container means 11.
  • the aspiration conduit 32 also includes at least one loop 35 located in direct cooperation with the area of ignition and combustion of the mixture 17.
  • the outer conduit 36 can also act as a level indicator.
  • the first 11 and second 14 container means can be associated with each other by quick attachment/release systems 37 and can be readily separated from each other by being withdrawn from each other during recharging.
  • first 11 and second 14 container means can be provided in one single body by division thereof into two separate chambers.
  • means to recharge the first container means 11 are provided since the latter in this case are not directly accessible from above.
  • the recharging means consist of a tube 38 associated at its upper end with a plug 39, which is advantageously inserted in a seating provided directly in the stopper 39.
  • Fig.9 shows a further variant of Fig.10 with the use of the same working principle.
  • Fig.11 is shown also a protection element 41 associated with the filtering closure membrane 31.
  • an element 42 to deliver an irritating substance is included in cooperation with the outlet nozzle 24 and is activated by the delivery of the vaporised substance.
  • the outer conduit 36 is positioned in an appropriate seating within the coil 13, possibly in a protected position and advantageously visible from the exterior, and coupling with insertion from below takes place by means of a quick coupling system 54.

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  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Burglar Alarm Systems (AREA)
  • Feeding, Discharge, Calcimining, Fusing, And Gas-Generation Devices (AREA)
  • Sampling And Sample Adjustment (AREA)
EP96101057A 1995-02-10 1996-01-25 Method to deliver a gas with an anti-theft function and relative device Withdrawn EP0726550A1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
ITUD950018 1995-02-10
IT95UD000018A IT1280125B1 (it) 1995-02-10 1995-02-10 Procedimento di erogazione di gas con funzione antifurto e dispositivo relativo

Publications (1)

Publication Number Publication Date
EP0726550A1 true EP0726550A1 (en) 1996-08-14

Family

ID=11421727

Family Applications (1)

Application Number Title Priority Date Filing Date
EP96101057A Withdrawn EP0726550A1 (en) 1995-02-10 1996-01-25 Method to deliver a gas with an anti-theft function and relative device

Country Status (2)

Country Link
EP (1) EP0726550A1 (it)
IT (1) IT1280125B1 (it)

Cited By (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1997018373A2 (de) * 1995-11-17 1997-05-22 Innovative Pyrotechnik Gmbh Vorrichtung zum vernebeln von räumen
GB2315683A (en) * 1996-07-31 1998-02-11 Barrie Peary Device for vaporising fluids
EP0878242A3 (de) * 1997-05-15 1999-09-01 Peter Dr. Lell Vorrichtung zum Verdampfen und/oder Vernebeln einer Flüssigkeit
GB2324636B (en) * 1997-04-26 2001-03-14 Gillrange Ltd Intruder deterrent device
DE19807592B4 (de) * 1998-02-23 2006-06-08 Lell, Peter, Dr.-Ing. Heizkörper für autarke Nebelgeräte
DE102012005538A1 (de) * 2012-03-21 2013-09-26 Günther Schaidt Safex-Chemie GmbH Vorrichtung zur Erzeugung von Aerosol
WO2018109657A1 (en) * 2016-12-12 2018-06-21 Essence Security International (E.S.I.) Ltd. Alarm system with smoke generation
US10189753B2 (en) 2012-12-31 2019-01-29 Bandit Nv Fog-generating device comprising a reagent and ignition means
WO2020060395A1 (en) * 2018-09-17 2020-03-26 Iron Technologies B.V. An anti-intrusion system with a fog generator for generating fog at an intrusion event

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4818843A (en) * 1988-02-12 1989-04-04 Edmund Swiatosz Smoke generator
GB2270396A (en) * 1992-09-12 1994-03-09 Paul Anton Dards Intruder deterrent system

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4818843A (en) * 1988-02-12 1989-04-04 Edmund Swiatosz Smoke generator
GB2270396A (en) * 1992-09-12 1994-03-09 Paul Anton Dards Intruder deterrent system

Cited By (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6087935A (en) * 1995-11-17 2000-07-11 Innovative Pyrotechnik Gmbh Smoke-screen for obscuring premises
WO1997018373A3 (de) * 1995-11-17 1997-08-21 Innovative Pyrotechnik Gmbh Vorrichtung zum vernebeln von räumen
WO1997018373A2 (de) * 1995-11-17 1997-05-22 Innovative Pyrotechnik Gmbh Vorrichtung zum vernebeln von räumen
GB2315683A (en) * 1996-07-31 1998-02-11 Barrie Peary Device for vaporising fluids
GB2315683B (en) * 1996-07-31 1998-09-16 Barrie Peary Device for vaporising fluids
GB2324636B (en) * 1997-04-26 2001-03-14 Gillrange Ltd Intruder deterrent device
EP0878242A3 (de) * 1997-05-15 1999-09-01 Peter Dr. Lell Vorrichtung zum Verdampfen und/oder Vernebeln einer Flüssigkeit
DE19807592B4 (de) * 1998-02-23 2006-06-08 Lell, Peter, Dr.-Ing. Heizkörper für autarke Nebelgeräte
DE102012005538A1 (de) * 2012-03-21 2013-09-26 Günther Schaidt Safex-Chemie GmbH Vorrichtung zur Erzeugung von Aerosol
US10189753B2 (en) 2012-12-31 2019-01-29 Bandit Nv Fog-generating device comprising a reagent and ignition means
WO2018109657A1 (en) * 2016-12-12 2018-06-21 Essence Security International (E.S.I.) Ltd. Alarm system with smoke generation
WO2020060395A1 (en) * 2018-09-17 2020-03-26 Iron Technologies B.V. An anti-intrusion system with a fog generator for generating fog at an intrusion event
NL2021650B1 (en) * 2018-09-17 2020-05-07 Iron Tech B V An anti-intrusion system with a fog generator for generating fog at an intrusion event

Also Published As

Publication number Publication date
ITUD950018A0 (it) 1995-02-10
ITUD950018A1 (it) 1996-08-10
IT1280125B1 (it) 1998-01-05

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