US2007089628A1PendingUtilityA1

Firearm ammunition having improved flight and impact characteristics

34
Individually held — no corporate assignee on recordPriority: Oct 20, 2005Filed: Oct 20, 2005Published: Apr 26, 2007
Est. expiryOct 20, 2025(expired)· nominal 20-yr term from priority
Inventors:Steven J. Elder
F42B 10/22
34
PatentIndex Score
0
Cited by
0
References
0
Claims

Abstract

A novel bullet adapted to be discharged from a firearm at least includes: a leading edged portion; and a trailing edge portion coupled to the leading edge portion, the trailing edge portion comprising a base and spiral fins, the spiral fins adapted to channel the boundary layer during flight of the bullet, and increase longitudinal stability.

Claims

exact text as granted — not AI-modified
1 . A bullet adapted to be discharged from a firearm, said bullet comprising: 
 a leading edged portion; and    a trailing edge portion coupled to said leading edge portion, said trailing edge portion comprising a base and spiral fins, said spiral fins adapted to channel a boundary layer during flight of the bullet, and increase longitudinal stability, wherein the diameter of the base and spiral fins are substantially identical, and wherein said spiral fins circle about the base a plurality of times.    
   
   
       2 . (canceled)  
   
   
       3 . (canceled)  
   
   
       4 . (canceled)  
   
   
       5 . A bullet adapted to be discharged from a firearm, said bullet consisting of: 
 a leading edged portion; and    a trailing edge portion coupled to said leading edge portion, said trailing edge portion consisting of a base and spiral fins, said spiral fins adapted to channel a boundary layer during flight of the bullet, and increase longitudinal stability, wherein the diameter of the base and spiral fins are substantially identical, and wherein said spiral fins circle about the base a plurality of times.    
   
   
       6 . (canceled)  
   
   
       7 . (canceled)  
   
   
       8 . (canceled)  
   
   
       9 . A bullet adapted to be discharged from a firearm, said bullet consisting essentially of: 
 a leading edged portion; and    a trailing edge portion coupled to said leading edge portion, said trailing edge portion consisting essentially of a base and spiral fins, said spiral fins adapted to channel a boundary layer during flight of the bullet, and increase longitudinal stability, wherein the diameter of the base and spiral fins are substantially identical, and wherein said spiral fins circle about the base a plurality of times.    
   
   
       10 . (canceled)  
   
   
       11 . (canceled)  
   
   
       12 . (canceled)  
   
   
       13 . (canceled)

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