1. Field of the Invention
The field of the present invention is projectile weapons, and in particular dual-use projectile weapons which fire non-lethal and less-lethal munitions.
2. Background
In certain situations, law enforcement officers or military personnel are required to use force to control crowds or certain individuals. Preferably, the control devices employed are designed to minimize bodily injury caused to the individuals against whom they are used.
Traditionally, the only options available have been firearms, chemical agents, and batons or clubs. The use of firearms, however, always raises the possibility of an unintended fatality. As to chemical agents, they may also cause unintended results if the person or persons they are directed towards have high or unusual sensitivities to the chemicals used. The disadvantage presented by the use of batons or clubs is that close physical engagement is required, and generally, close physical engagement is undesirable.
Currently, shoulder weapons, such as shotguns or rifles, are typically used to deploy kinetic non- and less-lethal munitions. However, during routine patrols, law enforcement and military personnel generally do not carry such weapons. Therefore, when the use of non-lethal force becomes tactically desirable, close physical engagement is the only option unless the weapon having the non- or less-lethal munitions is at hand. Unfortunately, most law enforcement and military personnel do not typically carry such weapons on their person.
As a solution to this problem, dual-use equipment for law enforcement and military personnel has been introduced. The baton is one of the more common pieces of equipment to be converted for dual-use. One of the most basic forms of the baton has an elongate cylindrical main body and a rigidly attached transverse handle positioned approximately one-fourth (¼) of the overall longitudinal length from one end. This basic design may be modified to include additional features, imparting greater functionality as compared to a conventional baton.
U.S. Pat. No. 5,529,300 discloses one example of a dual-use baton by incorporating a self-powered extensible projectile launching police baton. A hollow telescopic ram that is shorter than the barrel portion of the baton is positioned within the barrel of the baton. The ram may be driven out of the barrel of the baton by pressurized gas from an explosive cartridge mounted within the barrel. Thus, the ram member is extendible and fully retractable within the barrel of the baton. The front tip of the extensible ram is blunt or is deformable to reduce the impact when the ram hits an object or a person, thereby reducing the possibility of serious injury.
U.S. Pat. No. 5,364,097 discloses another example of a dual-use baton. The elongate body of the '097 patent includes a launching barrel and a breech end which houses a firing mechanism and a recessed trigger for launching a projectile positioned within the launching barrel. This baton is capable of firing non- and less-lethal projectiles or tear gas to subdue persons or crowds at a reasonably safe distance.
U.S. Pat. No. 6,400,688, the disclosure of which is incorporated herein by reference, discloses yet another example of a dual-use baton. This baton includes a barrel body which is pivotally connected to a breech body, with a handle secured to the breech body. The trigger for the firing mechanism is located between the handle and the end of the breech body. The trigger must be pushed towards the handle to actuate the firing mechanism. The trigger may also be pivoted and locked into a longitudinal position along the breech body. Stowing the trigger in such a position allows for normal use of the baton without interference from the trigger or accidental firing.
The present invention is directed towards a projectile weapon, and in particular a projectile weapon having a dual-use, the second use being as a baton. An elongate tubular body comprises a barrel portion and a receiver portion. The receiver portion includes a breech assembly disposed adjacent the barrel portion. A handle is affixed to the receiver portion, extending outward from the elongate tubular body. A firing mechanism is disposed within the receiver portion of the elongate tubular body adjacent the breech assembly. A trigger assembly is adapted to slide longitudinally along the elongate tubular body and to actuate the firing mechanism.
In a first separate aspect of the present invention, the trigger assembly is slidable between a deployed position and a retracted position. When the trigger assembly is in the deployed position, the trigger assembly is adapted to actuate the firing mechanism. When the trigger assembly is in the retracted position, the trigger face is recessed into the handle. Preferably, the trigger assembly is securable in the retracted position, thus removing the trigger face from interfering with use of the weapon as a baton and providing a safety feature.
In a second separate aspect of the present invention, the trigger assembly is adapted to actuate the firing mechanism via a reverser mechanism disposed within the receiver portion of the elongate tubular body. The reverser mechanism is coupled to both the trigger assembly and the firing mechanism such that the trigger assembly actuates the reverser mechanism and the reverser mechanism actuates the firing mechanism. Preferably, the reverser mechanism actuates the firing mechanism only when actuated by the trigger assembly. Optionally, the reverser mechanism may be releasably coupled to the trigger assembly, allowing the trigger assembly to slide without actuating the firing mechanism. As another option, the reverser mechanism may comprise a rack and pinion system, with a first rack being coupled to the trigger assembly, a second rack being coupled to the firing mechanism, and the pinion being disposed between and engaging the two racks.
In a third separate aspect of the present invention, the breech assembly is adapted to pivot outward from a first side of the elongate tubular body and the handle is affixed to a second side thereof. The breech assembly is pivotable between at least a closed position, in which the breech assembly is adapted to position ammunition adjacent the firing mechanism, and an open position for loading and unloading ammunition.
In a fourth separate aspect of the present invention, any of the foregoing aspects may be employed in combination.
Accordingly, it is an object of the present invention to provide an improved projectile weapon. Other objects and advantages will appear hereinafter.
In the drawings, wherein like reference numerals refer to similar components:
Turning in detail to the drawings,
The projectile weapon 10 is adapted to fire safety modified less-lethal ammunition, such as is manufactured by MK Ballistic Systems of Hollister, Calif., and is illustrated in
A handle 22 is rigidly affixed to the receiver portion 16, extending outward from the elongate tubular body 12 in a generally perpendicular direction. As shown, the handle 22 is on an opposite side of the elongate tubular body 12 from the groove 20. The relative orientation of the handle 22 and the groove 20, however, may be changed as desired.
A trigger assembly 24 (partially shown in
In
Referring again to
The receiver portion 16 includes a receiver cavity 31, an articulated breech assembly 32, a breech block 46, a firing mechanism 74, a reverser mechanism 78, a selector mechanism 81 and a trigger assembly 24. The breech assembly 32 includes a receiver door 34, which is hingedly affixed to the elongate tubular body 12 at a hinge point 36, and a cylindrical breech chamber 38 affixed to the receiver door 34. When the breech assembly 32 is closed, as shown in
The inner diameter of the breech chamber 38 is sized to receive the desired munitions. For many non- and less-lethal munitions, the diameter of the bore will generally be slightly smaller than the diameter of the breech chamber 38. Other munitions may require different relative diameters of the bore and the breech chamber 38.
The longitudinal length of the breech chamber 38 allows the breech assembly 32 to be pivoted from the open position to the closed position with a round of ammunition loaded without the breech chamber 38 or the head of the loaded ammunition catching on the upper rear edge of the receiver cavity 31. Referring to
In the projectile weapon 10 illustrated, a safety mechanism is included to permit discharge of only specially prepared ammunition cartridges. As described below, the travel of the striker 48 is limited and is designed to extend a certain distance past the face of the breech block 46. The head-spacing ramps are positioned to prevent drawing standard 12 gauge ammunition toward the breech block 46 within reach of the fully extended striker 48. Further, the breech block 46 includes a spring-biased lever, referred to as the safety lock-out finger 49, which limits rearward motion of standard ammunition in the breech chamber 38. This safety lock-out finger 49 prevents the fully extended striker 48 from contacting standard 12 gauge ammunition. Thus, a projectile weapon which includes the safety mechanism will not discharge standard lethal ammunition.
As previously indicated, the projectile weapon 10 is adapted to discharge less lethal safety ammunition cartridges that are similar in size and shape to standard 12 gauge less lethal cartridges.
When the breech assembly 32 is pivoted from the closed position to the open position, the spent ammunition casing (or the unfired live ammunition) is forced further into the breech chamber 38 by sliding against the breech block 46. As the breech assembly 32 reaches its fully open position, the ammunition is returned to the same position, relative to the breech chamber 38, it was in when initially loaded.
The receiver door 34 includes a spring wire detent 42 positioned to prevent loaded ammunition from falling out of the breech chamber 38 if the weapon 10 is jostled or upended, while the breech assembly 32 is in the open position. The receiver door 34 also includes a tongue 50 which engages a latch 52 to maintain the receiver door 34 in the closed position. Preferably, the top surface of the tongue 50 is inclined at approximately a 5° angle away from the longitudinal axis of the elongate tubular body 12, the rear edge of the top surface being further away from the longitudinal axis than the forward edge when the receiver door 34 in its closed position. The bottom surface of the latch 52 that engages the tongue 50 is inclined at a complimentary 40° angle. The latch 52 is hingedly attached to the breech block 46 about a hinge point 54 and is biased by a spring 56 to secure the receiver door 34 in the closed position. The contact point of the tongue 50 and the latch 52 is rearward of a vertical line upward from the hinge point 54. The rear portion of the latch 52 abuts the underside of a stop screw 57 secured to the elongate tubular body 12, the stop screw 57 limiting the pivotal movement of the latch 50. Thus, by pressing near the rear of the latch 52 towards the longitudinal axis of the elongate tubular body 12, the latch 52 releases the tongue 50 and allows the receiver door 34 to be moved to the open position. Preferably, the receiver door 34 is spring biased to remain in the open position when not latched in the closed position.
Referring again to
As depicted, the breech assembly 32 is disposed on and pivots away from the elongate tubular body 12 on a side opposite the handle 22. This relative orientation between the handle 22 and the breech assembly 32 is a matter of design choice and may be changed as desired.
Returning to
The portion of the trigger 24 that extends outward from the elongate tubular body 12 includes the trigger face 66 affixed to trigger rails 68. The trigger face 66 provides a suitable surface for one or more of a user's fingers to actuate the trigger assembly 24 when firing the weapon. The two trigger rails 68 stabilize the trigger 66. The trigger rails 68 are formed from a single piece of material that is suitably rigid, such as ⅛″ piano wire, the material being bent back upon itself at the trigger face 66 to form the two parallel trigger rails 68.
The two trigger rails 68 extend rearward from the trigger face 66 submerged within grooves along the outer surface of the elongate tubular body 12. The two trigger rails 68 pass under the handle 22 and into the interior of the receiver portion 16 where they are affixed to a trigger stabilizing ring 70. Where the trigger rails 68 extend along the elongate tubular body 12, the grooves act as both a guide for the trigger rails 68 and allow the trigger rails 68 to enter into the interior of the elongate tubular body 12 without being offset. The grooves preferably provide sufficient clearance to allow the trigger rails 68 to slide freely in the longitudinal direction along the elongate tubular body 12 while prohibiting significant movement in any non-longitudinal direction.
The trigger stabilizing ring 70 encircles part of the firing mechanism 74 within the interior of the receiver portion 16. The outer diameter of the trigger stabilizing ring 70 is somewhat smaller than the inner diameter of the receiver portion 16, while the inner diameter of the trigger stabilizing ring 70 is somewhat greater than the outer diameter of the firing mechanism 74, thus allowing the trigger stabilizing ring 70 free longitudinal movement within the interior of the receiver portion 16. The trigger return spring 76 engages the rear face of the trigger stabilizing ring 70 and also encircles the firing mechanism 74. The opposite end of the trigger return spring 76 seats in the housing 80 of the reverser mechanism 78.
As part of the selector mechanism 81 within the receiver portion 16, one of the trigger rails 68 includes a first notch 82 which is employed to secure the trigger assembly 24 in the deployed position and a second notch 84 which is employed to secure the trigger assembly 24 in the retracted position. The reverser mechanism 78, which is disposed at the rear of the receiver portion 14, includes a leg 86 extending therefrom to engage either the first notch 82 or the second notch 84.
Returning to
The third bore 100 is perpendicular to and intersects the first two bores 92, 98 so that the pinion 94 may engage each of the two racks 90, 96. The third bore 100 is also open to the exterior of the housing 80 for insertion of the pinion 94 therein. This third bore 100 extends past the first two bores 92, 98 within the housing 80 and reduces to the axle diameter to seat one end of the pinion axle 95. An axle carrier 97, into which the other end of the pinion axle 95 is press fit, is disposed within the larger diameter portion of the third bore 100.
Returning to
The firing mechanism 74, shown in
The first section of housing 110 extends through the center of and is affixed to the breech block 46. The breech block 46 maintains the firing mechanism 74 in the approximate diametric center of the breech chamber 38 when the breech assembly 32 is in the closed position. A spring 118 is disposed about the first section of housing 110, the forward end of the spring 118 seated within a recess 119 in the breech block 46 and the rear end seated against the nut 116. The spring 118 returns the two sections of housing 110, 112 to a longitudinally extended position after actuation.
The forward end of the first section of housing 110 is flush with the edge of the breech block 46 nearest the breech assembly 32. This end of the first section of housing 110 includes an aperture 108 through which the striker 48 extends when the weapon 12 is fired. A spring 120 encircles the striker 48 within the first section of housing 110. The striker includes a sleeve 121 press fit about the striker 48 forward of a circumferential flange 122. The sleeve 121 includes three sections of varied diameters. The forward section 123 limits the forward travel of the striker 48 by butting against a shoulder 129 within the first section of housing 110 when the striker is thrust forward into the breech chamber 38 upon firing. The middle section 127 is disposed between the forward and rearward sections 123, 125 and has a smaller diameter forming a groove therebetween to seat the rearward end of the spring 120. The forward end of the spring 120 seats within the undercut 124. The spring 120 returns the head of the striker 48 to just rearward of the forward edge of the breech block 46 following actuation.
The second section of housing 112 is open at the end it engages the nut 116 and closed at the opposite end. The convex end is engaged by the concave contact pad 106 when the reverser mechanism 76 is actuated by the trigger 24. The trigger stabilizing ring 70 and the trigger return spring 76 both encircle this section of housing 112, which encloses the hammer 126. A hammer spring 128 extends from the closed end of the second section of housing 112 towards the hammer 126 which is disposed near the open end thereof. The outer diameter of the hammer 126 is less than the inner diameter of the first section of housing 110, with the forward end of the hammer 126 resting partially therein. The hammer 126 includes a receptacle 132 in which a spring 134 and a steel ball 136 are disposed. The spring 134 presses the steel ball 136 against the interior surface of the second section of housing 112. When the first section of housing 110 is compressed into the second section of housing 112, the steel ball 136 is caught at the rear edge of the first section of housing 110 until pressure on the ball 136 from the ball depression ramp 137, disposed within housing 112, forces the steel ball 136 to recess into the receptacle 132. Upon release, the hammer 126 is thrust forward, impacting the striker 48. In turn, the striker 48 is thrust into the breech chamber for purposes of striking ammunition therein. Thus, movement of the trigger 24 towards the handle 22 when the first notch 84 is engaged results in actuation of the reverser mechanism 78, which in turn actuates the firing mechanism 74 to cause the striker 48 to strike loaded ammunition, thereby firing the projectile weapon 10.
Thus, an improved projectile weapon in the form of a baton is disclosed. While embodiments of this invention have been shown and described, it will be apparent to those skilled in the art that many more modifications are possible without departing from the inventive concepts herein. The invention, therefore, is not to be restricted except in the spirit of the following claims.
This application claims priority under 35 U.S.C. § 119(e) to U.S. Provisional Application No. 60/497,356, filed on Aug. 21, 2003, the disclosure of which is incorporated herein by reference.
Number | Name | Date | Kind |
---|---|---|---|
2099993 | Tauschek | Nov 1937 | A |
2634535 | Borders | Apr 1953 | A |
3708902 | Foster et al. | Jan 1973 | A |
4489515 | Numbers | Dec 1984 | A |
4644930 | Mainhardt | Feb 1987 | A |
4722148 | Walker | Feb 1988 | A |
5135151 | Logan | Aug 1992 | A |
5364097 | Lyon | Nov 1994 | A |
6463688 | Idehara | Oct 2002 | B1 |
Number | Date | Country | |
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20050043101 A1 | Feb 2005 | US |
Number | Date | Country | |
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60497356 | Aug 2003 | US |