Ammunition Delivery System Arrowhead and Method of Use

Abstract

A device and method introduces the use of conventional ammunitions to the archery/bow hunting industry. The device achieves stealthy delivery of firearm munitions and increases the firepower of standard arrows resulting in deeper penetration into a target. The device consists generally of a containment housing threaded internally on one end for attachment to a firing pin. A cartridge is loaded into the containment housing until the flange on the cartridge casing abuts an interior shoulder. In an alternate embodiment, the interior of the containment housing further includes an annular retaining tab integrally formed in the interior of the housing containment. The retainer tab separates the cartridge from the firing pin to prevent inadvertent discharge. A safety cap may be included on the containment housing to further protect the device from accidental discharge of the cartridge.

1 . A cartridge deployment arrowhead comprising:
 a cylindrical container, having an internal cylindrical chamber;   the internal cylindrical chamber having an abutment stop and a cartridge exposure orifice; and,   a firing pin, secured in the internal cylindrical chamber adjacent to the abutment stop.   
     
     
         2 . The cartridge deployment arrowhead of  claim 1  wherein the firing pin includes a raised protrusion positioned at a gap distance from a base of a cartridge positioned in the internal cylindrical chamber. 
     
     
         3 . The cartridge deployment arrowhead of  claim 1  wherein a cartridge is positioned in the internal cylindrical chamber, adjacent the abutment stop, and extends from the cartridge exposure orifice. 
     
     
         4 . The cartridge deployment arrowhead of  claim 1  wherein the cylindrical container is transparent. 
     
     
         5 . The cartridge deployment arrowhead of  claim 1  further comprising a safety cap engaged with the cylindrical container and covering the cartridge exposure orifice. 
     
     
         6 . The cartridge deployment arrowhead of  claim 1  further comprising a spring adjacent the firing pin and adjacent a cartridge positioned in the internal cylindrical chamber. 
     
     
         7 . An arrowhead carrying a projectile and attached to an arrow, the arrowhead comprising:
 a firing pin comprised of a threaded section engaging the arrow;   the firing pin further comprising a middle section integrally formed with the threaded section and a head section where the head section includes a first set of threads;   a protrusion extending from the head section;   a containment housing having a forward opening leading to a first cavity and a rearward opening leading to a second cavity;   the second cavity engaging the first set of threads;   the containment housing further comprising a shoulder separating the first cavity from the second cavity;   whereby the projectile is frictionally engaged with the first cavity and abuts the shoulder; and   whereby the protrusion is separated from the projectile by a gap.   
     
     
         8 . The arrowhead of  claim 7  further comprising:
 the containment housing including a hole passing through to the first cavity and a second set of threads proximate the forward opening; and 
 a cap threadably engaged with the second set of threads where the cap defines a space between the cap and the projectile. 
 
     
     
         9 . The arrowhead of  claim 7  where the protrusion is concentrically aligned with the longitudinal axis of the firing pin. 
     
     
         10 . The arrowhead of  claim 7  where the protrusion is offset from the longitudinal axis of the firing pin. 
     
     
         11 . The arrowhead of  claim 7  further comprising:
 a cap frictionally engaged with the containment housing proximate the forward opening where the cap defines a space between the projectile and the cap; and 
 a window passing through the containment housing to the first cavity. 
 
     
     
         12 . The arrowhead of  claim 7  further comprising:
 where the containment housing includes a retaining tab extending into the second cavity; and 
 where the retaining tab is adjacent the projectile. 
 
     
     
         13 . The arrowhead of  claim 12  where the retaining tab is an annular projection around the interior of the second cavity. 
     
     
         14 . The arrowhead of  claim 12  where the retaining tab is a set of tabs spaced equidistantly around the interior of the second cavity. 
     
     
         15 . The arrowhead of  claim 7  further comprising a spring adjacent the firing pin and adjacent the projectile where the spring biases the projectile away from the firing pin. 
     
     
         16 . The arrowhead of  claim 7  further comprising:
 the containment housing including a second set of threads proximate the forward opening; 
 a cap threadably engaged with the second set of threads where the cap defines a space between the cap and the projectile; 
 a set of vents in the cap which pass through to the space; 
 the containment housing further including a retaining tab extending into the second cavity; and 
 where the retaining tab is adjacent the projectile. 
 
     
     
         17 . An ammunition delivery system arrowhead, housing a cartridge and attached to an arrow shaft, the arrowhead comprising:
 a generally cylindrical hollow housing including a first opening leading to a first cavity and a second opening leading to a second cavity where the first cavity and the second cavity are separated by an internal shoulder;   a retaining tab extending from the housing into the second cavity where the retaining tab defines a slot adjacent the internal shoulder;   a generally cylindrical firing pin including a first section threadably engaged with the arrow shaft, a second section integrally formed with the first section, and a third section integrally formed with the second section and threadably engaged with the second cavity;   a protrusion extending from the third section into the second cavity; and   whereby the cartridge rests in the slot adjacent the retaining tab and the internal shoulder and further extends through the first cavity and the first opening.   
     
     
         18 . The ammunition delivery system arrowhead of  claim 17  where a gap exists between the protrusion and the projectile. 
     
     
         19 . The ammunition delivery system arrowhead of  claim 17  further comprising a spring adjacent the firing pin and adjacent the cartridge where the spring biases the cartridge away from the firing pin. 
     
     
         20 . The ammunition delivery system arrowhead of  claim 17  further comprising:
 a set of threads on the exterior of the housing proximate the forward opening; 
 a safety cap threadably engaged with the set of threads where the safety cap defines a space between the cap and the cartridge; and 
 a hole passing through the housing to the first cavity. 
 
     
     
         21 . The ammunition delivery system arrowhead of  claim 17  further comprising a safety cap engaged with the housing and covering the first opening, where the safety cap includes a set of vents. 
     
     
         22 . The ammunition delivery system arrowhead of  claim 17  where the retaining tab is an annular projection around the interior of the second cavity. 
     
     
         23 . The ammunition delivery system arrowhead of  claim 17  where the retaining tab is a set of tabs spaced equidistantly in one plane around the interior circumference of the second cavity. 
     
     
         24 . A method for discharging ammunition via an arrow to a target comprising the steps of:
 providing a firing pin including a protrusion;   providing a containment housing including a forward opening leading to a first cavity and a rearward opening leading to a second cavity where the first cavity and the second cavity are separated by a shoulder;   inserting the ammunition through the rearward opening;   seating the ammunition in the first cavity where the ammunition extends through the first opening and abuts the shoulder;   attaching the firing pin to the containment housing;   providing a gap between the firing pin and the ammunition;   engaging the firing pin and the attached containment housing with the arrow;   delivering the arrow towards the target;   contacting the target with the ammunition;   forcing the ammunition backwards through the containment housing and into the firing pin; and   discharging the ammunition.   
     
     
         25 . The method of  claim 24  further comprising the steps of:
 providing a retaining tab extending from the containment housing into the second cavity; 
 seating the ammunition adjacent the retaining tab and the shoulder; and 
 where the forcing step further includes breaking the retaining tab. 
 
     
     
         26 . The method of  claim 24  where the step of attaching the firing pin and containment housing to the arrow further comprises:
 peering through a hole in the containment housing to verify existence of ammunition; 
 removing a safety cap from the containment housing to expose the ammunition. 
 
     
     
         27 . The method of  claim 24  further comprising the steps of:
 providing a spring adjacent the firing pin and adjacent the ammunition; and 
 biasing the ammunition away from the firing pin towards the containment housing. 
 
     
     
         28 . The method of  claim 24  further comprising the steps of:
 providing a retaining tab extending from the containment housing into the second cavity; 
 seating the ammunition adjacent the retaining tab and the shoulder; 
 where the forcing step further includes breaking the retaining tab; and 
 where the step of attaching the firing pin and containment housing to the arrow further comprises removing a safety cap from the containment housing to expose the ammunition.