Apr 29, 2025

US12287170 - Projectile launcher maintained breech pressure feature

Improvements in a projectile launcher with a two-part bolt is disclosed. The two-part bolt has a forward bolt that moves and locates the projectile from the magazine to the breach. The ball is maintained in the breach until pressurized air pushes the projective out of the launcher. A ball holder is biased by a spring and when the bolt is moved, the bolt will lift the ball holder and blocks loading of a second projectile. An adjustable barrel detent alters pressure on top of the projectile to create backspin. The two bolt parts forms a piston to drive the projectile forward. A spring between the forward bolt and the rear bolt to maintains an extended biased location between the two bolt components. Travel between the two bolt elements if maintained by a pin that is retained in the rear bolt with a pin keeper spring.

Inventors: Brian Sullivan
Filing date: 2023-07-05

The patent describes a projectile launcher featuring a two-part bolt system that allows for precise projectile loading and launching through the use of pressurized air. The design includes a spring-biased ball holder and an adjustable barrel detent to enhance projectile performance by creating backspin.

Claim 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 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.

Google Patents

https://patents.google.com/patent/US12287170

USPTO PDF

https://image-ppubs.uspto.gov/dirsearch-public/print/downloadPdf/12287170