Projectile launcher with a permanent high-low pressure system

摘要

A projectile launcher includes a barrel, a high pressure chamber included within the barrel, and a low pressure area included within the barrel and substantially surrounding the high pressure chamber. The high pressure chamber includes an inner cavity and multiple vent holes connecting the inner cavity to the low pressure area so that high pressure gases generated in the inner cavity by a pressure cartridge can pass from the inner cavity to the low pressure area and propel a round (or projectile) out of the launcher.

主权项

1. A projectile launcher, comprising:
a barrel having an opening on one end and an inner wall disposed within the barrel at an opposite end of the barrel from the opening; a high pressure chamber disposed within the barrel and extending outward from the inner wall of the barrel, the high pressure chamber including an inner cavity and a plurality of vent holes extending outward from the inner cavity to an outer surface of the high pressure chamber; a low pressure area disposed within the barrel and substantially surrounding the high pressure chamber, the plurality of vent holes extending between and connecting the inner cavity of the high pressure chamber to the low pressure area so that high pressure gases generated in the inner cavity can pass from the inner cavity to the low pressure area; and a bolt assembly connected to the barrel for inserting, holding, and extracting a cylindrical pressure cartridge from the high pressure chamber, the bolt assembly including a bolt having a bolt face, the bolt face including a u-shaped notch defined therein and sized to receive and hold a cylindrical lip defined on one end of the cylindrical pressure cartridge, the bolt assembly further including a bolt handle for sliding the bolt in and out with respect to the high pressure chamber and a firing pin disposed within and extending along the length of the bolt.