GB2384042A - A projectile for delivery of an electric charge - Google Patents

A projectile for delivery of an electric charge Download PDF

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Publication number
GB2384042A
GB2384042A GB0223889A GB0223889A GB2384042A GB 2384042 A GB2384042 A GB 2384042A GB 0223889 A GB0223889 A GB 0223889A GB 0223889 A GB0223889 A GB 0223889A GB 2384042 A GB2384042 A GB 2384042A
Authority
GB
United Kingdom
Prior art keywords
projectile
accordance
preceding
impact
membrane
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
GB0223889A
Other versions
GB0223889D0 (en
GB2384042B (en
Inventor
Richard Ian Brydges-Price
Original Assignee
Richard Ian Brydges-Price
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
Priority to GB0124696A priority Critical patent/GB0124696D0/en
Application filed by Richard Ian Brydges-Price filed Critical Richard Ian Brydges-Price
Publication of GB0223889D0 publication Critical patent/GB0223889D0/en
Publication of GB2384042A publication Critical patent/GB2384042A/en
Application granted granted Critical
Publication of GB2384042B publication Critical patent/GB2384042B/en
Application status is Expired - Fee Related legal-status Critical
Anticipated expiration legal-status Critical

Links

Classifications

    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F42AMMUNITION; BLASTING
    • F42BEXPLOSIVE CHARGES, e.g. FOR BLASTING, FIREWORKS, AMMUNITION
    • F42B12/00Projectiles, missiles or mines characterised by the warhead, the intended effect, or the material
    • F42B12/02Projectiles, missiles or mines characterised by the warhead, the intended effect, or the material characterised by the warhead or the intended effect
    • F42B12/36Projectiles, missiles or mines characterised by the warhead, the intended effect, or the material characterised by the warhead or the intended effect for dispensing materials; for producing chemical or physical reaction; for signalling ; for transmitting information
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F41WEAPONS
    • F41HARMOUR; ARMOURED TURRETS; ARMOURED OR ARMED VEHICLES; MEANS OF ATTACK OR DEFENCE, e.g. CAMOUFLAGE, IN GENERAL
    • F41H13/00Means of attack or defence not otherwise provided for
    • F41H13/0012Electrical discharge weapons, e.g. for stunning, such as tasers
    • F41H13/0031Electrical discharge weapons, e.g. for stunning, such as tasers for remote electrical discharge by means of a wireless projectile
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F42AMMUNITION; BLASTING
    • F42BEXPLOSIVE CHARGES, e.g. FOR BLASTING, FIREWORKS, AMMUNITION
    • F42B10/00Means for influencing, e.g. improving, the aerodynamic properties of projectiles or missiles; Arrangements on projectiles or missiles for stabilising, steering, range-reducing, range-increasing or fall-retarding
    • F42B10/32Range-reducing or range-increasing arrangements; Fall-retarding means
    • F42B10/48Range-reducing, destabilising or braking arrangements, e.g. impact-braking arrangements; Fall-retarding means, e.g. balloons, rockets for braking or fall-retarding
    • F42B10/50Brake flaps, e.g. inflatable
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F42AMMUNITION; BLASTING
    • F42BEXPLOSIVE CHARGES, e.g. FOR BLASTING, FIREWORKS, AMMUNITION
    • F42B12/00Projectiles, missiles or mines characterised by the warhead, the intended effect, or the material
    • F42B12/02Projectiles, missiles or mines characterised by the warhead, the intended effect, or the material characterised by the warhead or the intended effect
    • F42B12/36Projectiles, missiles or mines characterised by the warhead, the intended effect, or the material characterised by the warhead or the intended effect for dispensing materials; for producing chemical or physical reaction; for signalling ; for transmitting information
    • F42B12/46Projectiles, missiles or mines characterised by the warhead, the intended effect, or the material characterised by the warhead or the intended effect for dispensing materials; for producing chemical or physical reaction; for signalling ; for transmitting information for dispensing gases, vapours, powders or chemically-reactive substances
    • F42B12/54Projectiles, missiles or mines characterised by the warhead, the intended effect, or the material characterised by the warhead or the intended effect for dispensing materials; for producing chemical or physical reaction; for signalling ; for transmitting information for dispensing gases, vapours, powders or chemically-reactive substances by implantation, e.g. hypodermic projectiles
    • HELECTRICITY
    • H05ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
    • H05CELECTRIC CIRCUITS OR APPARATUS SPECIALLY DESIGNED FOR USE IN EQUIPMENT FOR KILLING, STUNNING, OR GUIDING LIVING BEINGS
    • H05C1/00Circuits or apparatus for generating electric shock effects
    • H05C1/04Circuits or apparatus for generating electric shock effects providing pulse voltages
    • H05C1/06Circuits or apparatus for generating electric shock effects providing pulse voltages operating only when touched

Abstract

A projectile for delivering a stun electric charge comprises a body 1 with a rear container 2 housing one or more electric storage cells 3. A module 4 incorporates a voltage step-up transformer 5 with an associated electronic control circuit board 6. A forward nose portion 7 has a series of collapsible or compressible elements 8 and an outer inflatable or expandable membrane 9 with an associated gas producing charge or gas storage device and a detonator or sensor to produce inflation on or just before impact with a target (Fig. 2). The nose has two axially aligned electrodes 10 connected to opposed poles of the high voltage generator or transformer 5. A nose plate 11 is arranged to move rearwardly on target impact allowing the electrodes to penetrate the target outer layer to deliver the electric charge.

Description

<Desc/Clms Page number 1>

Title : Projectile for delivery of an electric charge.

This invention relates to a non-lethal projectile primarily for the purpose of incapacitating a selected target.

One object of this invention is to provide a projectile which does not itself bodily penetrate a target but which may deliver an electric charge serving to incapacitate a life-form such as an animal including a human.

In accordance with this invention there is provided a projectile with means to effectively retard the velocity of the projectile on impact with a target, the velocity retarding means comprises an inflatable membrane actuated on or close to impact, for example by a impact sensor or by means of a proximity sensing means, the membrane being inflated using gas pressure either stored in the projectile and preferably derived from the propulsive charge gases occurring on firing from a weapon or derived form an on-board ignitable charge, the projectile being characterised by an integral electrical storage means capable of delivering a electric charge through two spaced electrodes adapted to effectively contact or to pierce the surface of the target on initial impact.

The velocity is retarded in such a way following impact to allow sufficient penetration of the electrodes, through clothing or skin but to prevent excess injury or penetration and this is achieved by means which rapidly produces a large increase in area at the nose of the projectile thus spreading and dissipating the kinetic energy over a large area.

<Desc/Clms Page number 2>

Preferably the projectile is adapted to be fired from a barrel weapon which may be rifled to impart spin. The projectile may be of sub-calibre design using a discarding sabot and be fired In a barrel having progressive rifled pitch to attain an appropriate velocity.

The construction permits use in confined spaces such as in vessels or aircraft where penetration of the hull or possible stressing following impact is to be avoided.

In one preferred construction the projectile has a body with a nose cavity containing a deformable or compressible material taking-up initial impact and a membrane which may be inflated by a pressure gas just before or after impact. Extending through the nose are two electrodes having portions projecting forwardly and adapted to penetrate the surface of a soft target. The electrodes connect with a source of high voltage derived from an electrical storage means such as a battery pack with an associated voltage transforming device and, in a preferred embodiment, a charge storage means such as a capacitor bank.

In one arrangement a capacitor bank in the projectile is charged to the required voltage level prior to discharge from a launching weapon which weapon includes a power pack to charge the capacitor bank immediately before firing or on arming the weapon.

A preferred construction incorporates a motion detector serving to impart a further electric discharge if the target moves after being initially hit.

The membrane itself may include electrical conductors or conductive tracks connecting with electrical probes which pierce the target to deliver the charge

<Desc/Clms Page number 3>

A further preferred construction includes an injecting device or mechanism to tranquillise or incapacitate the target following delivery of the electric charge. A capsule may be included to wet the area of impact to produce an enhanced effect by augmenting electric conduction around the impact area.

In another arrangement the projectile includes one or more electrical storage cells which power a high voltage generator the cells being discharged instantly on impact to produce a stun voltage delivered to the electrodes or shortly before or after firing from the weapon to charge a storage device.

In an alternative arrangement the projectile may include a series of piezo-electric elements arranged axially in the projectile with an associated mass which provides a compressive force on retardation of the projectile thereby generating the required voltage either directly or through a voltage transforming device.

The velocity retarding means may comprise a device to significantly increase the area of the projectile nose portion on initial impact thus dissipating kinetic energy over a large area.

In one construction the velocity retarding means comprises an inflatable membrane actuated by a sensor on initial impact or using a proximity sensing means.

In an alternative the membrane is pre-pressurised and expands following discarding of an overlaying covering forming a constraining means.

The membrane may be inflated through a detonator and gas producing explosive charge or through use of stored gas pressure. This charge or stored

<Desc/Clms Page number 4>

pressure may also serve for the purpose of injecting the drug by dnvlng a piston in the drug containing cavity.

The membrane can be located in the nose of the projectile comprising a readily broken, fragmenting, unfurling or deployable cap The membrane may be in the form of a bag attached to and around a forward end of the electrodes thus preventing penetration beyond a predetermined depth.

The nose part of the projectile may include a solid foam-like or gel-like substance forming an impact absorbing material which spreads on impact.

More specifically the gel may comprise a nano-porous open cell foam of the kind known by the trade mark Aerogel or a collapsing element.

This invention is further described and illustrated with reference to the drawings showing an embodiment by way of example only. In the drawings: Fig 1 shows a longitudinal cross-section of a projectile in accordance with this invention, Fig 2 shows the projectile during the target impact phase, As shown in Fig. 1 of the drawings the projectile comprises a body 1 with a rear container 2 housing one or more cells 3. The cells may be Li-MH or Ni-MH capable of holding a charge long term. A central module 4 incorporates a voltage step-up transformer 5 with an associated electronic control circuit board 6. A forward nose portion 7 has a series of collapsible or compressible elements 8 and an outer inflatable or expandable, that is stretchable, membrane 9 with an associated gas producing charge or gas storage device and a detonator or sensor to produce inflation on impact with a target (such devices are not shown here).

<Desc/Clms Page number 5>

The nose further Includes two axially aligned electrodes 10 connected to opposed poles of the high voltage generator or transformer 5. A nose plate 11 is arranged to move rearwardly on target impact allowing the electrodes to penetrate the target outer layer to deliver the electric charge.

The nose of the projectile may include a fluid means to wet the target to increase conductivity and effectiveness of the charge.

On target impact, and as shown in Fig. 2, the nose plate 11 moves rearwardly and the membrane 9 is inflated through the inflation gas charge.

The electrodes then project and penetrate the target outer material following which the electric charge is delivered by an instant discharge of the electrical energy in the cells 3 through the transforming device 5. Thus a high voltage high energy discharge is effected for a brief period designed to incapacitate the target Further and preferred features are contained in the Claims appended hereto and as described in the foregoing.

Claims (24)

  1. CLAIMS : 1. A projectile with means to effectively retard the velocity of the projectile on impact with a target, the velocity retarding means comprises an inflatable or expandable membrane actuated on or close to target impact, the membrane being inflated using gas pressure, the projectile being characterised by an Integral electrical storage means capable of delivering a electric charge through two spaced electrodes adapted to effectively contact or to pierce a surface of the target on initial impact coincident with or following inflation of the membrane.
  2. 2. A projectile in accordance with Claim 1, wherein the velocity is retarded in such a way and following impact to allow penetration of the electrodes through clothing or skin but to prevent excess injury or penetration.
  3. 3. A projectile in accordance with Claim 1 or 2, wherein the projectile is adapted to be fired from a barrel weapon which may be rifled to impart spin.
  4. 4. A projectile in accordance with any preceding Claim, wherein the projectile is of sub-calibre design using a discarding sabot and fired in a barrel having progressive rifled pitch to attain a velocity greater than 500 m/s.
  5. 5. A projectile in accordance with any preceding Claim, wherein the projectile has a body with a nose cavity containing a deformable or compressible material taking-up initial impact and a membrane inflated by a pressure gas just before or after impact.
  6. 6. A projectile in accordance with any preceding Claim, wherein two electrodes extend through the nose of the projectile, the electrodes
    <Desc/Clms Page number 7>
    having portions projecting forwardly and adapted to penetrate the surface of a soft target
  7. 7. A projectile in accordance with any preceding Claim, wherein the electrodes connect with a source of high voltage derived from an electrical storage means with an associated voltage transforming device and, preferably including a charge storage means such as a capacitor bank.
  8. 8. A projectile in accordance with any preceding Claim, wherein a capacitor bank in the projectile is charged to the required voltage level prior to discharge from a launching weapon which weapon includes a power pack to charge the capacitor bank immediately before firing or on arming the weapon.
  9. 9. A projectile in accordance with any preceding Claim, wherein the projectile includes one or more electrical storage cells which power a high voltage generator the cells being discharged instantly on impact to produce a stun voltage delivered to the electrodes or discharged shortly before or after firing from the weapon to charge a storage device.
  10. 10. A projectile in accordance with any preceding Claim, the projectile including a series of piezo-electric elements arranged axially in the projectile with an associated mass which provides a compressive force on retardation of the projectile thereby generating the required voltage either directly or through a voltage transforming device.
  11. 11. A projectile in accordance with any preceding Claim, wherein the velocity retarding means comprises a device to significantly increase the area of
    <Desc/Clms Page number 8>
    the projectile nose portion on initial impact thus dissipating kinetic energy over a large area
  12. 12. A projectile In accordance with any preceding Claim, wherein the velocity retarding means comprises an inflatable membrane actuated by a sensor on initial impact or using a proximity sensing means.
  13. 13. A projectile in accordance with any preceding Claim, wherein the membrane is pre-pressurised and expands following discarding of an overlaying covering forming a constraining means.
  14. 14. A projectile in accordance with any preceding Claim, wherein the membrane is inflated through a detonator and gas producing explosive charge or through use of stored gas pressure, the charge or stored pressure preferably serving the purpose of injecting or dissipating a fluid
  15. 15. A projectile in accordance with any preceding Claim, wherein the membrane is located in the nose of the projectile comprising a readily broken, fragmenting, unfurling or deployable cap.
  16. 16. A projectile in accordance with any preceding Claim, wherein the membrane is in the form of a bag attached to and around a forward end of the electrodes thus preventing penetration beyond a predetermined depth.
  17. 17. A projectile in accordance with any preceding Claim, wherein the nose part of the projectile includes a solid foam-like or gel-like substance forming an impact absorbing material which spreads on impact, preferably increasing surface conductivity of the target.
    <Desc/Clms Page number 9>
  18. 18 A projectile In accordance with any preceding Claim, wherein the Inflatable or expandable membrane is actuated on or close to Impact by means of an impact sensor or a proximity sensing means.
  19. 19 A projectile in accordance with any preceding Claim, wherein the membrane is inflated using gas pressure either stored in the projectile and preferably derived from the propulsive charge gases occurring on firing from a weapon or derived form an on-board ignitable charge.
  20. 20. A projectile in accordance with any preceding Claim, wherein a motion detector is included serving to impart a further electric discharge if the target moves after being initially hit.
  21. 21. A projectile in accordance with any preceding Claim, wherein the membrane itself may include electrical conductors or conductive tracks connecting with electrical probes which pierce the target to deliver the charge.
  22. 22. A projectile in accordance with any preceding Claim, wherein an injecting device or mechanism to tranquillise or incapacitate the target following delivery of the electric charge is incorporated into the projectile body.
  23. 23. A projectile in accordance with any preceding Claim, wherein a liquid containing capsule is included to wet the area of impact to produce an enhanced effect by augmenting electric conduction around the impact area.
  24. 24. A projectile constructed and arranged to function as described herein and exemplified with reference to the drawings.
GB0223889A 2001-10-15 2002-10-14 Projectile for delivery of an electric charge Expired - Fee Related GB2384042B (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB0124696A GB0124696D0 (en) 2001-10-15 2001-10-15 Projectile for delivery of a tranquilliser

Publications (3)

Publication Number Publication Date
GB0223889D0 GB0223889D0 (en) 2002-11-20
GB2384042A true GB2384042A (en) 2003-07-16
GB2384042B GB2384042B (en) 2005-09-21

Family

ID=9923840

Family Applications (2)

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GB0124696A Ceased GB0124696D0 (en) 2001-10-15 2001-10-15 Projectile for delivery of a tranquilliser
GB0223889A Expired - Fee Related GB2384042B (en) 2001-10-15 2002-10-14 Projectile for delivery of an electric charge

Family Applications Before (1)

Application Number Title Priority Date Filing Date
GB0124696A Ceased GB0124696D0 (en) 2001-10-15 2001-10-15 Projectile for delivery of a tranquilliser

Country Status (1)

Country Link
GB (2) GB0124696D0 (en)

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6880466B2 (en) * 2002-06-25 2005-04-19 Brent G. Carman Sub-lethal, wireless projectile and accessories
WO2005047802A3 (en) * 2003-08-13 2005-12-22 Mdm Group Inc Piezoelectric incapacitation projectile
EP1904205A2 (en) * 2005-07-12 2008-04-02 Security Devices International Inc. Non-lethal wireless stun projectile system for immobilizing a target by neuromuscular disruption
US7421951B2 (en) * 2004-12-01 2008-09-09 Drexel University Piezoelectric stun projectile
US8441771B2 (en) 2009-07-23 2013-05-14 Taser International, Inc. Electronic weaponry with current spreading electrode
US8587918B2 (en) 2010-07-23 2013-11-19 Taser International, Inc. Systems and methods for electrodes for insulative electronic weaponry

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1997005444A1 (en) * 1995-08-02 1997-02-13 LFK Lenkflugkörpersysteme GmbH Bullet for use against living targets while entailing no lethal risk for them
US5698815A (en) * 1995-12-15 1997-12-16 Ragner; Gary Dean Stun bullets
US5962806A (en) * 1996-11-12 1999-10-05 Jaycor Non-lethal projectile for delivering an electric shock to a living target
GB2350414A (en) * 1999-05-24 2000-11-29 Brydges Price Richard Ian Projectile for delivery of a tranquilliser

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1997005444A1 (en) * 1995-08-02 1997-02-13 LFK Lenkflugkörpersysteme GmbH Bullet for use against living targets while entailing no lethal risk for them
US5698815A (en) * 1995-12-15 1997-12-16 Ragner; Gary Dean Stun bullets
US5962806A (en) * 1996-11-12 1999-10-05 Jaycor Non-lethal projectile for delivering an electric shock to a living target
GB2350414A (en) * 1999-05-24 2000-11-29 Brydges Price Richard Ian Projectile for delivery of a tranquilliser

Cited By (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6880466B2 (en) * 2002-06-25 2005-04-19 Brent G. Carman Sub-lethal, wireless projectile and accessories
WO2005047802A3 (en) * 2003-08-13 2005-12-22 Mdm Group Inc Piezoelectric incapacitation projectile
EP1664664A2 (en) * 2003-08-13 2006-06-07 Harrington Group, Ltd. Piezoelectric incapacitation projectile
US7100514B2 (en) 2003-08-13 2006-09-05 Harrington Group Ltd. Piezoelectric incapacitation projectile
EP1664664A4 (en) * 2003-08-13 2008-10-01 Harrington Group Ltd Piezoelectric incapacitation projectile
US7421951B2 (en) * 2004-12-01 2008-09-09 Drexel University Piezoelectric stun projectile
US7506588B2 (en) 2004-12-01 2009-03-24 Drexel University Piezoelectric stun projectile
US7658151B2 (en) 2004-12-01 2010-02-09 Drexel University Piezoelectric stun projectile
EP1904205A2 (en) * 2005-07-12 2008-04-02 Security Devices International Inc. Non-lethal wireless stun projectile system for immobilizing a target by neuromuscular disruption
EP1904205A4 (en) * 2005-07-12 2012-04-18 Security Devices Internat Inc Non-lethal wireless stun projectile system for immobilizing a target by neuromuscular disruption
US8441771B2 (en) 2009-07-23 2013-05-14 Taser International, Inc. Electronic weaponry with current spreading electrode
US8587918B2 (en) 2010-07-23 2013-11-19 Taser International, Inc. Systems and methods for electrodes for insulative electronic weaponry

Also Published As

Publication number Publication date
GB0223889D0 (en) 2002-11-20
GB0124696D0 (en) 2001-12-05
GB2384042B (en) 2005-09-21

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Legal Events

Date Code Title Description
PCNP Patent ceased through non-payment of renewal fee

Effective date: 20101014