High flow bolt for paintball marker
AssigneeNew Designz
InventorDavid F. Dziob
Life of this patent
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Abstract
A high flow bolt for a paintball marker increases the efficiency of energy transfer from a propellant charge to the paintball projectile by increasing the flow rate of propellant through the bolt. Gradual transitions, increased sectional area flow passages and an equalizing chamber synergistically combine to improve the efficiency of the marker by up to 30% or more. A more efficient marker provides more shots per unit of propellant.
Claims17
A bolt for a pneumatically operated projectile launching device having a barrel extending from a muzzle end to a generally cylindrical breech, said bolt comprising:
- a body having an axis and extending from a breech end to a projectile end, said body defining an inlet opening and a plurality of non circular flow passages fluidly connecting said inlet opening to a chamber adjacent said projectile end, each of said passages having a sectional area measured perpendicular to said axis of at least approximately 0.04 in2.
A bolt for a pneumatically operated device for launching a projectile, said bolt mounted for reciprocation within the breech of said device, said bolt having a breech end and a projectile end, said bolt comprising:
- a body having an axis and defining an inlet opening intermediate said breech end and said projectile end, a generally hemispherical chamber adjacent said projectile end and three longitudinally extending flow passages communicating between said inlet opening and said chamber, said chamber having a volume of at least approximately 0.06 in2, each of said flow passages being non-circular in section.
Dependencies are inferred from the claim text.