US Government As Represented by the Secretary of the Army

USA As Represented by Secretary of the Navy

David Marshall

Robert Carson

Tyler Bellamy

Adam Blot

Christopher Aiello

Scott Bentley

Emanuel Tortorici

Stephen Robertson

Francesco Tropiano

A blast attenuator for blast overpressure has features that allow for blast attenuation and ease of projectile loading from the muzzle of the weapon system. This combination of physical ease of use and blast reduction allows the system to achieve high levels of performance without making significant concessions to operator safety.

Attenuating blast cone

Muzzle brake

Openings in a muzzle brake provide recoil inhibition and impulse noise attenuation by redirecting the propellant gases to the external environment. A turning vane aggressively turns and redirects the propellant gases in a rearward direction to counter the recoil of the weapon system. An angled baffle provides a physical barrier to redirect propellant gases rearward to provide additional force to counteract the recoil force. Attenuation slits mitigate blast overpressure by producing a fluid barrier of high velocity propellant gases directed radially away from the muzzle brake. The fluid barrier from the attenuation slits interacts with the redirected propellant gas from the turning vane and the angled baffle and redirects the counter recoil gases away from the crew.

Cannon recoil inhibitor and impulse noise attenuator

A breech mechanism sliding contact assembly that allows for ignition, gun ground, and ammunition data link circuits to be broken while the breechblock is open. The sliding contact assembly further allows these circuits to be reconnected when the breechblock is closed. The breech mechanism sliding contact assembly comprises two separate connectors: a block slide connector that assembles to the breechblock and a ring slide connector that assembles to the breech ring. The two connectors operate in compact, pre-existing headspaces between the breechblock and the breech ring.

Breech mechanism sliding contact assembly

Growing community of inventors

Ballston Lake, NY, United States of America

David Marshall