GB2516252A - Irritant delivery device and method - Google Patents

Irritant delivery device and method Download PDF

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Publication number
GB2516252A
GB2516252A GB1312687.5A GB201312687A GB2516252A GB 2516252 A GB2516252 A GB 2516252A GB 201312687 A GB201312687 A GB 201312687A GB 2516252 A GB2516252 A GB 2516252A
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United Kingdom
Prior art keywords
irritant
window
breaker
gas
delivery device
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Granted
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GB1312687.5A
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GB201312687D0 (en
GB2516252B (en
Inventor
Ross Denison Clucas
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Ross Denison Clucas
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Priority to GB1312687.5A priority Critical patent/GB2516252B/en
Publication of GB201312687D0 publication Critical patent/GB201312687D0/en
Publication of GB2516252A publication Critical patent/GB2516252A/en
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Publication of GB2516252B publication Critical patent/GB2516252B/en
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Classifications

    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F41WEAPONS
    • F41HARMOUR; ARMOURED TURRETS; ARMOURED OR ARMED VEHICLES; MEANS OF ATTACK OR DEFENCE, e.g. CAMOUFLAGE, IN GENERAL
    • F41H9/00Equipment for attack or defence by spreading flame, gas or smoke or leurres; Chemical warfare equipment
    • F41H9/04Gas-blowing apparatus, e.g. for tear gas
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F41WEAPONS
    • F41HARMOUR; ARMOURED TURRETS; ARMOURED OR ARMED VEHICLES; MEANS OF ATTACK OR DEFENCE, e.g. CAMOUFLAGE, IN GENERAL
    • F41H9/00Equipment for attack or defence by spreading flame, gas or smoke or leurres; Chemical warfare equipment
    • F41H9/10Hand-held or body-worn self-defence devices using repellant gases or chemicals

Abstract

An irritant delivery device comprises a window breaker 10 having a handle 22 and a breaker head 18 adapted for breaking a window. A discharge port 24 for discharging irritant, such as CS powder is formed on or adjacent the breaker head. A pressure vessel 12 receives pressurised gas containing or forming the irritant. A gas release device 14 is provided which is actuatable by a user to cause the pressure vessel 12 to be discharged through the discharge port 24. In use, the breaker head 18 can be impacted against a window e.g. of a motor vehicle so that the discharge port 24 can be introduced through the broken window and irritant delivered into the space beyond the window.

Description

IRRITANT DELIVERY DEVICE AND METHOD

The present Invention is concerned with delivery of an air-borne Irritant. The invention is particulaily, but not necessarily exclusively, applicable to delivery of such an Irritant Into an enclosed space such as a vehicle.

it is known to use air-borne irritants to subdue malfeasors. One such irritant is chlorobenzatmalononltrlle, the active component of tear gaV or "CS gaC which has been widely used by police as a riot control agent and for other purposes.

Effects of CS can include tearing arid a burning sensation in the eyes leading to their uncontrollable shutting, coughing, acute nasal discharge, burning sensations in the nose and throat, disorientation1 breathing problems and vomiting. A malfeasor exposed to Cs can thus be subdued or Incapacitated.

Cs is a solid at room temperature. One deRvery method involves dissolving CS in an organic solvent and then spraying the resultant liquid from a pressurised container to form an air-borne aerosol. The so-called "pepper spray Is a small, hand-held device of this type to be used at close quarters e.g. to deliver the aerosol directly to the face of an assailant. A CS aerosol can also be created using explosive shells or grenades, for crowd control.

A different approach Involves the use of CS in powder form. When combined with a suitable agent to prevent clumping, CS can be formed into a fine powder able to be dispersed In air. For example the agent known as CS2 is a sillconlzed micro-pulverized form of CS, Such agents are also referred to as mlcronized CS powders.

One possible use of CS or other air-borne Irritants is In subduing and apprehending rnaifeasors in vehicles or other enclosed spaces. A dose of the relevant agent delivered into the enclosed space may subdue the occupants sufficiently to prevent them, for example, from resisting arrest, or attempting to drive away, or from using any firearm or weapon they might be carrying, and by using an irritant in this context the need for additional force by the police or other agency may be avoided. The irritant may in principle be delivered into the space by breaking a window and introducing the irritant or Its delivery mechanism through the resultant opening, but there are practical challenges involved.

The process needs to be carried out quickly, to minimise the danger that the malfeasor(s) will make some violent reaction of the type just mentioned.

Ideally the process of introducing the Irritant needs to be rapid and the form of the irritant and Its mode of delivery needs to be such that It will rapidly permeate the space containing the matfeasor(s).

For the sake of safety the quantity of CS introduced into the vehicle needs to be controlled.

it is known to provide a police baton having multiple functions including a pepper spray. US 6,499,855 BI (Kukuk) describes a baton that, in one embodiment, has an elongate and extendabie baton portion with a handle extending perpendiculady to it. The perpendicular handle incorporates a pepper spray.

Additionally, the main body of the baton has a glass breaker member with a sharp tip that can be driven against a window to break It. However, there is no suggestion in this prior art document that the baton could be used, as proposed above, to first break a window and then introduce irritant into an enclosed space on the far side of the window to subdue malfeasors in that space. Nor would the baton be well suited to this purpose. The Irritant spray Is to be ejected through a nozzle which is remote from the glass breaker member (it lies in the perpendicular handle and not in the main body) and the nozzle through which the irritant is to be dispensed faces in the opposite direction to the glass breaker member. PJso a valve button 15 used to activate the pepper spray is disposed at the end of the handle. Consequently a user would not be able to first break a window and then discharge the pepper spray through it wIthout withdrawing the baton from the window, releasing the handle and changing the grip upon the baton, and then introducing the handle through the broken window. Additionally, the fact that the pepper spray nozzle and the valve button used to activate the pepper spray are immediately adjacent one another means that to spray through the broken wndow the user would actually have to insert his/her hand through the opening in it, a dearly hazardous and Inappropriate operation. There is another embodiment described in this prior art document in which the perpendicular handle Is dispensed with and the pepper spray and the window breaker are at opposite ends of a generafly cylindrical baton body, but this again would be quite unsuited to the purpose considered herein. The pepper spray discussed In this prior art document is. as exptained above, intended to be discharged directly toward a malfeasor in close quarters, but is not necessarily suitable for permeating an enclosed space such as a motor vehicle.

in accordance with a first aspect of the present invention, there is an irritant delivery device comprising a window breaker comprising a handle, a breaker head coupled to the handle and adapted for breaking a window, and a discharge port which is formed in, upon, or adjacent to the breaker head; a pressure vessel for receiving pressurised gas containing or forming the Irritant; and a gas release device actuable by a user to cause the pressure vessel to be discharged through the discharge port; so that while holding the window breaker by Its handle a user can impact the breaker head against the window to break It, introduce the breaker head through the broken window, and then by actuating the gas release device can deliver irritant into a space beyond the window.

The formation of the window breaker, particularly the fad that the discharge port is associated with the breaker head, makes it possible in a single action to break the window, introduce the breaker head into the space beyond the window, and dispense the irritant. This is potentially very rapid indeed. There Is no need to withdraw the breaker head after the window has been broken and before initiating dIspensing of the Irritant.

Thus in accordance with the invention the same tool -the window breaker -can be used first to break a vehicle window to create the opening for introduction of the irritant, and then to deilver the irritant itseIt This may even be done in a single action by swinging the window breaker to create the required opening and then, without withdrawing it, pushing the window breaker Into the vehicle and initiating discharge of the Irritant.

A specific embodiment of the present invention will now be described, by way of example only, with reference to the accompanying drawing, which shows an Irrflant delivery device embodying the present Invention.

The irritant delivery device comprises window breaker 10, gas vessel 12, a gas release device 14, and a flexible hose 16 connecting the gas release device 14 to the window breaker 10.

These parts will be described in more detail, beginning with the window breaker which is hand-held in this embodiment. Vehicle windows are typically laminated and formed of toughened safety glass giving them a degree of impact resistance, but tools for breaking them for safety purposes are well known and widely available. The illustrated window breaker 10 Is In some respects similar to the type of safety hammer seen, for example, on public transport, where it is intended to facilitate egress from the vehicle followIng an accident. It has a breaker head 18 provIded In this example with multiple metal tIps 20 whose Impact with the window causes cracking and breakage. A single metal tip 20 could Instead be provided, and indeed the breaker head may take different forms.

The window breaker 10 also has a handle 22 which in the illustrated examples is of a loop shape affording some protection to the knuckles of the user, although again the handle could take any number of different forms in other embodiments.

The illustrated window breaker 10 comprises a unitary plastics moulding although it incorporates metal elements (not seen) In the breaker head 18, to weIght It.

in accordance with the present invention, the window breaker 10 has a port 24 for discharge of irritant-bearing gas. In the illustrated embodiment the port 24 is formed by the open mouth of a through-going passage 26, formed as a bore, through a portion of the window breaker 10 adJacent the breaker head. A connector 28 is received in the end of the passage 26 opposite the port 24 to form a gas tight connection to the flexible hose 16, which in this embodiment is pre-formed In a helical shape as seen, helping to ensure free movement of the window breaker 10 whilst alleviating any problems of tangling of the hose.

At its end opposite the window breaker 10, the hose 16 is received by a fithng of the gas release device 14. in the present embodiment the gas release device 14 and the gas vessel 12 are components that would otherwise be used in a fire extinguisher. The details of suitable gas vessels and valve arrangements are consequently well known and widely available and wilt not be described in detail herein, but briefly the gas vessel 12 has a narrowed, Internally threaded neck Into which is screwed a male fitting (not seen) of the gas release device 14. A normally closed valve (not seen) of the devIce 14 maintains pressure and prevents gas discharge until a user actuable lever 30 is squeezed toward a fixed handle 32 to open the valve, after which the gas vessel 12 rapidly discharges via the hose 16 and through the port 24. ThIs is a none shot" device: once initiated, discharge continues until the gas vessel 12 Is exhausted, in perhaps two or three seconds.

The gas vessel 12 of the present embodiment is carried in a hip holster 34.

Other carrying devices could be substituted.

The illustrated device may In principle be used to deliver any of a range of gaseous or gas-borne irritants but the favoured irritant Is micronized CS powder.

This very fine powder can be easily and rapidly delivered by a pressurised carrier gas and quickly forms a suspension in the air, permeating a vehicle into which It is sprayed. The quantity of CS powder required for use in a motor car cabin is small -a few cubic centimetres -and the resultant gaslpowder mixture flows freely through the hose 16 and port 24 makIng Its discharge rapid of the order of two to three seconds, in prototype trials. The gas vessel 12 can be pressurised with any suitable gas. Nitrogen Is suitable.

Note that the window breaker 10 is held in one of the users hands and the other hand controls initiation of irritant discharge. This is considered advantageous.

In a police or anti-terrorist operation to apprehend matfeasor(s) in a motor vehicle, the vehicle would typically first be brought to a halt, e.g. by firing suitable rounds into its tyres to deflate them. Armed officers would assume suitable positions adjacent the vehicle and one officer, wearing protective clothing against the effects of the irritant, would then approach the vehicle with the delivery device according to the present Invention in hand. By impacting the breaker head with a vehicle window (note that the term window', here and In the appended claims1 includes any glazing including for example the windscreen) that officer would create an opening for insertion of the port 24 of the window breaker 10, and by squeezing the lever 30 he/she would then initiate discharge of the irritant Into the motor vehicle cabin, subduing its occupant(s); The whole process can be completed In a matter of a few seconds.

The window breaker 10 may take a range of different forms. For example it may be more akin to a hammer, having a handle formed as an elongate shaft. Such an embodiment may be especlafly useful where the vehicle Is a truck or lorry with windows well above ground level.

Claims (9)

  1. CLAiMS 1. An irritant delivery device comprising a window breaker compilsing a handle, a breaker head coupled to the handle and adapted for breaking a window, and a discharge port which Is formed in, upon, or adjacent to the breaker head; a pressure vessel for receMng pressurised gas containing or founing the irritant; and a gas release device actuable by a user to cause the pressure vessel to be discharged through the discharge port; so that while holding the window breaker by its handle a user can impact the breaker head against the window to break it, introduce the breaker head through the broken window, and then by actuating the gas release device can deliver irritant into a space beyond the window.
  2. 2. An irritant delivery device as claimed in c'aim 1 In which the breaker head has an impact surface or tip which is for striking the window and which faces along an impact direction, and in which the discharge port also faces substantially along the impact direcdon.
  3. 3. An irritant delivery device as claimed in claim I or claim 2 In which the window breaker and the pressure vessel are separate units connected by a flexible conduit for conducting the gas.
  4. 4. An irritant delivery device as claimed in claim 3 In which the gas release device Is mounted on the pressure vessel.
  5. 5. An irrItant delivery device as claimed in any preceding claim adapted to enable the window breaker to be held In one hand while the gas release device is actuated with the other hand.
  6. 6. An irritant delivery device as claimed in claim 5 In which the gas release device Is a separate unit from the window breaker, so that they can be held in different hands.
  7. 7. An irritant delivery device as claimed in any preceding claim in which the pressure vessel contains powder irritant and a pressutlsed gas.
  8. 8. An Irritant delivery device as claimed in claim 6 In which the Irritant is micronized Cs powder.
  9. 9. A method of subduing maifeasors in a vehicle, comprising breaking a window of the vehicle using an impact device having a gas discharge port, advancIng the Impact device through a resultant opening in the window and discharging irritant gas or irritant-bearing gas through the gas discharge port into the vehicle.
GB1312687.5A 2013-07-16 2013-07-16 Irritant delivery device and method Active GB2516252B (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB1312687.5A GB2516252B (en) 2013-07-16 2013-07-16 Irritant delivery device and method

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB1312687.5A GB2516252B (en) 2013-07-16 2013-07-16 Irritant delivery device and method

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GB201312687D0 GB201312687D0 (en) 2013-08-28
GB2516252A true GB2516252A (en) 2015-01-21
GB2516252B GB2516252B (en) 2015-11-04

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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
USD804653S1 (en) 2015-06-12 2017-12-05 Emd Millipore Corporation Pressure vessel
US10088398B2 (en) 2015-02-11 2018-10-02 Emd Millipore Corporation Stirred cell and method of using same

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6499855B1 (en) * 2000-10-29 2002-12-31 Craig Kukuk Combination police baton

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6499855B1 (en) * 2000-10-29 2002-12-31 Craig Kukuk Combination police baton

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US10088398B2 (en) 2015-02-11 2018-10-02 Emd Millipore Corporation Stirred cell and method of using same
USD804653S1 (en) 2015-06-12 2017-12-05 Emd Millipore Corporation Pressure vessel

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Publication number Publication date
GB2516252B (en) 2015-11-04
GB201312687D0 (en) 2013-08-28

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