Broadhead-bullet with sabot

• US 9,021,958 B1
• Filed: 12/15/2014
• Issued: 05/05/2015
• Est. Priority Date: 01/01/2014
• 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:
  US14/570,043
• Time in Patent Office: 141 Days
• Field of Search: 102/400, 102/439, 102/501, 102/502, 102/504, 102/512, 102/517, 102520-522, 102/532, 102/507, 102/510
• 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 14/06 Sub-calibre projectiles having sabots; Sabots therefor
• CPC Class Codes: F42B 14/064 Sabots enclosing the rear end of a kinetic energy projectile, i.e. having a closed disk shaped obturator base and petals extending forward from said base
• CPC Class Codes: F42B 6/08 Arrow heads; Harpoon heads
• CPC Class Codes: F42B 7/08 Wads, i.e. projectile or shot carrying devices, therefor
• CPC Class Codes: F42B 7/10 Ball or slug shotgun cartridges

Abstract

The Broadhead-Bullet and Sabot is a new type of sub-sonic hunting projectile combining capabilities of an expandable broad head arrowhead with that of a firearm-fired projectile. The Broadhead-Bullet and Sabot is for use in shorter ranges akin to shotgun slug ranges but is able to utilize the cost effectiveness, utility, and ease of use of existing firearms.

Claims

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

a. a projectile shaft whereby said projectile shaft has a center of gravity biased towards the fore end of said projectile shaft;

b. a penetrating tip located at the fore end of said projectile shaft whereby said penetrating tip initiates the penetration of said firearm projectile into target material;

c. a blade support located at the aft end of said projectile shaft, said blade support is attached to said projectile shaft whereby said blade support retains pivoting blades to said projectile shaft;

d. two said pivoting blades attached to said blade support whereby each of said pivoting blades can pivot counter rotational to the opposing said pivoting blade on said blade support;

e. at least one shaft blade stop located at the aft end of said projectile shaft, said pivot blade stop terminates the deployment of said pivoting blade when a spine of said pivot blade contacts said shaft blade stop; and

f. a fin unit attached to the aft portion of said projectile whereby said fin unit creates a center of pressure biased towards the aft end of said projectile shaft, said fin unit is released from the projectile when said pivoting blades deploy.

2. The projectile from claim 1 further including a projectile sabot whereby said projectile sabot sheaths the projectile and whereby said projectile sabot absorbs a portion of peak pressure created during propellant burn, said projectile sabot is releasable from the projectile when the projectile exits the firearm barrel.

3. The projectile from claim 2 further including a shotshell containing a powder charge, said projectile sabot, and said sub-sonic firearm projectile.

4. The projectile from claim 1 further including at least one pivoting blade sabot affixed to the fore end portion of each said pivoting blade whereby said pivoting blade sabots resist said pivoting blade from penetrating said target material when said pivoting blade is in the stowed position, and whereby said pivoting blade slides against said pivoting blade sabot initiating deployment of said pivoting blade, and whereby said pivoting blade sabot is releasable from said pivoting blade when said pivoting blade is in the deployed position.

5. The projectile from claim 4 further including a projectile sabot whereby said projectile sabot sheaths the projectile and whereby said projectile sabot absorbs a portion of peak pressure created during propellant burn, said projectile sabot releases from the projectile when the projectile exits the firearm barrel.

6. The projectile from claim 5 further including a shotshell containing a powder charge, said projectile sabot, and said sub-sonic firearm projectile.

7. A new type of sub-sonic firearm projectile for use in a smoothbore barrel firearm comprising:

a. a projectile shaft whereby said projectile shaft has a center of gravity biased towards the fore end of said projectile shaft; and

whereby the aft portion of said projectile shaft has a compressive yield strength greater than peak pressure during propellant burning;

b. a penetrating tip located at the fore end of said of said projectile shaft whereby said penetrating tip initiates the penetration of said firearm projectile into target material;

c. a blade support located at the aft end of said projectile shaft, said blade support is attached to said projectile shaft whereby said blade support retains pivoting blades to said projectile shaft;

d. two said pivoting blades attached to said blade support whereby each of said pivoting blades can pivot counter rotational to the opposing said pivoting blade on said blade support;

e. at least one shaft blade stop located at the aft end of said projectile shaft, said pivot blade stop terminates the deployment of said pivoting blade when a spine of said pivot blade contacts said shaft blade stop;

f. a fin unit attached to the aft portion of said projectile whereby said fin unit creates a center of pressure biased towards the aft end of said projectile shaft, said fin unit is released from the projectile when said pivoting blades deploy.

8. The projectile from claim 7 further including a projectile sabot whereby said projectile sabot sheaths the projectile, said projectile sabot releases from the projectile when the projectile exits the firearm barrel.

9. The projectile from claim 8 further including a shotshell containing a powder charge, said projectile sabot, and said sub-sonic firearm projectile.

10. The projectile from claim 7 further including a projectile sabot whereby said projectile sabot sheaths the projectile and whereby said projectile sabot absorbs a portion of peak pressure created during propellant burn, said projectile sabot releases from the projectile when the projectile exits the firearm barrel.

11. The projectile from claim 10 further including a shotshell containing a powder charge, said projectile sabot, and said sub-sonic firearm projectile.

12. The projectile from claim 7 further including at least one pivoting blade sabot affixed to the fore end portion of each said pivoting blade whereby said pivoting blade sabots resist said pivoting blade from penetrating said target material when said pivoting blade is in the stowed position, and whereby said pivoting blade slides against said pivoting blade sabot initiating deployment of said pivoting blade, and whereby said pivoting blade sabot is releasable from said pivoting blade when said pivoting blade is in the deployed position.

13. The projectile from claim 12 further including a projectile sabot whereby said projectile sabot sheaths the projectile and said projectile sabot releases from the projectile when the projectile exits the firearm barrel.

14. The projectile from claim 13 further including a shotshell containing a powder charge, said sabot, and said sub-sonic firearm projectile.

15. The projectile from claim 12 further including a projectile sabot whereby said projectile sabot sheaths the projectile and whereby said projectile sabot absorbs a portion of peak pressure created during propellant burn, said projectile sabot releases from the projectile when the projectile exits the firearm barrel.

16. The projectile from claim 15 further including a shotshell containing a powder charge, said projectile sabot, and said sub-sonic firearm projectile.