Wad with ignition chamber
AssigneeRA Brands, L.L.C.
InventorsDavid K. Schluckebier, Kevin R. Cross, Ricky J. Buckmaster, Spencer D. Wildman
Life of this patent
Estimating the term…
Abstract
A wad or basewad for ammunition includes an ignition chamber. The ignition chamber can be integrally formed with the payload wad, basewad, or battery cup or can be attached to the payload wad, basewad, or battery cup. The ignition chamber communicates with a primer of the ammunition to receive and contain the primer blast for at least an initial period of time. This facilitates faster initial ignition of the propellant of the ammunition, and consequently allows higher performance levels to be achieved. Other advantages regarding other applications of this invention include cleaner burning loads, greater economy, and lower perceived recoil.
Claims12
A round of ammunition, comprising:
- a shell body;
- a primer;
- a wad disposed along the shell body;
- a projectile payload located forwardly of the wad;
- and
- an ignition chamber disposed within the shell body with a proximal end of the ignition chamber aligned with and located adjacent the primer, the ignition chamber comprising a propellant and an ignition tube defining an ignition recess configured to at least partially focus and at least partially contain a primer blast in the ignition chamber, the ignition recess is shaped to reduce or compress a volume of the primer blast so as to augment ignition of the propellant, to ignite more of the propellant within the ignition chamber, or to increase an initial pressure in the ignition chamber.
A round of ammunition, comprising:
- a shell body;
- a primer;
- a wad disposed along the shell body;
- a projectile payload located forwardly of the wad;
- an ignition chamber disposed within the shell body with a proximal end of the ignition chamber aligned with and located adjacent the primer such that the ignition chamber receives and at least partially contains a primer blast therein;
- an ignition recess defined by the ignition chamber and extending between a distal end of the ignition chamber adjacent the wad and the proximal end of the ignition chamber, the ignition recess includes a minimum cross-sectional area at the distal end of the ignition chamber and a maximum cross-sectional area at the proximal end of the ignition chamber;
- and
- a first propellant disposed in at least the ignition chamber and a second propellant disposed along at least a portion of an exterior of the ignition chamber.
A round of ammunition, comprising:
- a shell body;
- a primer;
- a wad disposed along the shell body;
- a projectile payload located forwardly of the wad;
- an ignition chamber disposed within the shell body with a proximal end of the ignition chamber aligned with and located adjacent the primer such that the ignition chamber receives and at least partially contains a primer blast therein, wherein the primer is at least partially disposed in a battery cup, and the proximal end of the ignition chamber extends from the battery cup;
- and
- an ignition recess defined by the ignition chamber and extending between a distal end of the ignition chamber adjacent the wad and the proximal end of the ignition chamber, the ignition recess includes a minimum cross-sectional area at the distal end of the ignition chamber and a maximum cross-sectional area at the proximal end of the ignition chamber.
Dependencies are inferred from the claim text.