Patent ID: 8201545
Filing Date: 2012-06-19
Classification: F41B

Abstract:
1. A paintball marker comprising: a housing having formed therein a cylindrical chamber with an axis, the chamber having an open end and a wall, the wall having therein a first opening and a second opening; and a valve assembly within the chamber and coaxial therewith, the valve assembly configured so that, during one period of revolution about the axis: wherein the valve assembly comprises a valve body having an axial slot therein for permitting entry of the compressed gas in the second portion of the period of revolution, the slot having sides extending in the axial direction and ends extending in the azimuthal direction, and the valve body has protrusions at an exterior cylindrical surface thereof for contacting an inner surface of the chamber and thereby preventing escape of the compressed gas at the exterior of the valve, the protrusions forming axially spaced circumferential seals at respective ends of the slot and longitudinal seals, each intersecting said circumferential seals, along respective sides of the slot.