Broadhead bullet

• US 8,646,388 B1
• Filed: 09/17/2012
• Issued: 02/11/2014
• Est. Priority Date: 09/17/2012
• Status: Expired due to Fees

• Current Assignee: Michael S. Bradbury
• Original Assignee: Michael S. Bradbury
• Inventors: Bradbury, Michael Sean
• Primary Examiner(s): Weber, Jonathan C
• Application Number:
  US13/621,592
• Time in Patent Office: 512 Days
• Field of Search: 102/400, 102/439, 102/501, 102/502, 102/504, 102/512, 102/517, 102/520, 102/521, 102/522
• US Class Current: 102/400
• CPC Class Codes: F42B 12/34 expanding before or on impact, i.e. of dumdum or mushroom type
• CPC Class Codes: F42B 6/08 Arrow heads; Harpoon heads
• CPC Class Codes: F42B 7/02 Cartridges, i.e. cases with propellant charge and missile

Abstract

A new type of firearm projectile incorporating the functionality of a pivoting blade broad head with that of a firearm propelled projectile. The Broadhead Bullet is for use in shorter ranges akin to bow hunting ranges but able to utilize the cost effectiveness and utility of existing firearm platforms that can accommodate the caliber of the Broadhead Bullet.

Claims

1. A new type of firearm projectile for use in a smoothbore barrel firearm comprising:

a shaft having a length and a circumference;

a penetrating tip, said penetrating tip is affixed to one end of said shaft and has a shape to initiate the penetration of said firearm projectile into target material;

stationary blades affixed to said shaft and/or said penetrating tip whereby said stationary blades are oriented opposite from each other, said stationary blades have cutting edges facing towards said penetrating tip;

a stationary blade sabot affixed to the outer most edge of each said stationary blade whereby said stationary blade sabots provide a barrier between said stationary blades and a firearm barrel, said stationary blade sabots are releasable from said stationary blades when said firearm projectile enters the target material;

two pivoting blades attached to the other end of said shaft by a pivot blade shaft, said pivoting blades are oriented opposite from each other and adjacent to said shaft, said pivoting blades are able to pivot outwardly at said pivot blade shaft when front tips of said pivoting blades contact said target material;

a pivot stop positioned at the other end of said shaft behind said pivot blade shaft whereby said pivot stop terminates the pivoting deployment of said pivoting blades when said pivoting blades reach a full deployment position whereby said pivoting blades cutting edges are oriented towards said target material;

pivoting blade sabots affixed to the front and outer tip portion of each of said pivoting blades whereby said pivoting blade sabots provide a barrier between said pivoting blades and the firearm barrel, whereby said pivoting blade sabots aid said pivoting blades to deploy, whereby said pivoting blade sabots are releasable from said pivoting blades upon full deployment;

a wad to provide a barrier between powder charge and the projectile, said wad functions as a sabot for the rear portion of the projectile whereby said wad holds the rear portion of the projectile and provides a barrier between said gun barrel and said firearm projectile, said wad is releasable from said firearm projectile when the projectile exits the firearm barrel; and

said firearm projectile, the sabots, the wad, and said powder charge reside inside of a shot shell, said shot shell is sized to fit within said firearm barrel.

2. The firearm projectile from claim 1 further including the rear portion of said pivoting blades at said pivoting blade shaft are offset from the center horizontal axis of said shaft and the front tips of said pivoting blades are in alignment with the horizontal axis whereby the slight angular difference in said pivoting blades relative to the horizontal axis of said shaft imparts a stabilizing spin to the projectile while in flight;

and

said stationary blades are also slightly angularly biased whereby said stationary blades also impart a stabilizing spin to the projectile in concert with said pivoting blades.

3. A new type of firearm projectile for use in a smoothbore barrel firearm, comprising:

a shaft having a length and a circumference;

a penetrating tip, said penetrating tip is affixed to one end of said shaft and has a shape to initiate the penetration of said firearm projectile into target material;

stationary blades affixed to said shaft and or said penetrating tip whereby said stationary blades are oriented opposite from each other, said stationary blades have cutting edges facing towards said penetrating tip;

two pivoting blades attached to the other end of said shaft by a pivot blade shaft, said pivoting blades are oriented opposite from each other and adjacent to said shaft, said pivoting blades are able to pivot outwardly at said pivot blade shaft when front tips of said pivoting blades contact said target material;

a pivot stop positioned at the other end of said shaft behind said pivot blade shaft whereby said pivot stop terminates the pivoting deployment of said pivoting blades when said pivoting blades reach a full deployment position whereby said pivoting blades cutting edges are oriented towards said target material;

a circular sabot consisting of at least two pieces and attached to said pivoting blades whereby the circular sabot pieces remain affixed to said pivoting blades when said pivoting blades are in the closed position and are releasable when said pivoting blades are in the full deployment position, said circular sabot provides a barrier between the pivoting blades, stationary blades, and the firearm barrel;

a wad that provides a barrier between a powder charge and the projectile and said wad functions as a sabot for the rear portion of the projectile whereby said wad holds the rear portion of the projectile and provides a barrier between said gun barrel and said firearm projectile, said wad is releasable from said firearm projectile when the projectile exits the firearm barrel; and

said firearm projectile, the sabots, the wad, and said powder charge reside inside of a shot shell, said shot shell is sized to fit within said firearm barrel.

4. The projectile from claim 3 further including said circular sabot has an airfoil shape whereby said circular sabot provides stabilization to said firearm projectile during flight.

5. The projectile from claim 3 further including said pivoting blades have front tips that are wider in thickness than the rest of said pivoting blades whereby the increase in thickness aids in the deployment of said pivoting blades when the projectile impacts the target material.

6. The firearm projectile from claim 3 further including the rear portion of said pivoting blades at said pivoting blade shaft are offset from the center horizontal axis of said shaft and the front tips of said pivoting blades are in alignment with the horizontal axis whereby the slight angular difference in said pivoting blades relative to the horizontal axis of said shaft imparts a stabilizing spin to the projectile while in flight;

and

said stationary blades are also slightly angularly biased whereby said stationary blades also impart a stabilizing spin to the projectile in concert with said pivoting blades.

7. The firearm projectile from claim 6 further including said circular sabot has an airfoil shape whereby said circular sabot provides stabilization to said firearm projectile during flight.

8. The projectile from claim 6 further including said pivoting blades have front tips that are wider in thickness than the rest of said pivoting blades whereby the increase in thickness aids in the deployment of said pivoting blades when the projectile impacts the target material.

9. The projectile from claim 8 further including said circular sabot has an airfoil shape whereby said circular sabot provides stabilization to said firearm projectile during flight.