US 12,287,170 B2
Projectile launcher maintained breech pressure feature
Brian Sullivan, Alta Loma, CA (US)
Filed by Brian Sullivan, Alta Loma, CA (US)
Filed on Jul. 5, 2023, as Appl. No. 18/218,233.
Prior Publication US 2025/0012541 A1, Jan. 9, 2025
Int. Cl. F41B 11/73 (2013.01); F41A 21/00 (2006.01)
CPC F41B 11/73 (2013.01) [F41A 21/00 (2013.01)] 20 Claims
OG exemplary drawing
 
1. A projectile launcher with a two-part bolt comprising:
a forward bolt and a rear bolt;
said forward bolt having a first end that moves a projectile and a second end that is configured to fit within a recess of said rear bolt;
said forward bolt is biased in an extended position from a first end of said rear bolt with a spring;
said forward bolt and a rear bolt having an inside diameter that is configured for air to pass therethrough;
a pin that limits movement of said forward bolt in said rear bolt, wherein said pin is retained in a slot in said forward bolt, and
said pin is retained by pin keeper spring that extends at least partially around said rear bolt.
 
17. A projectile launcher with a two-part bolt comprising:
a forward bolt and a rear bolt;
said forward bolt having a first end that moves a projectile and a second end that is configured to fit within a recess of said rear bolt;
said forward bolt is biased in an extended position from a first end of said rear bolt with a spring;
said forward bolt and a rear bolt having an inside diameter that is configured for air to pass therethrough;
further includes a barrel detent, and
said barrel detent is configured to impart a backspin on a projectile as said projectile passes under said barrel detent.