Patent ID: 9671188
Date: 2017-06-06
CPC Classifications: F41A,F41C

Claim:
1. A noise suppressor for a rifle having a barrel at a breach end, the barrel also having an externally threaded, distal end terminating in a rifle crown, the noise suppressor comprising: an inner core component and an outer sleeve component, the outer sleeve component being closely received about the inner core component in use; wherein the inner core component has an internally threaded, barrel receiving end which receives and engages the exteriorly threaded end of the rifle barrel in overlapping fashion, an oppositely arranged exteriorly threaded end, and a central bore between the two ends which allows the passage of a bullet when the bullet is fired, firing of the bullet also setting off hot, high speed exhaust gases in the central bore; wherein the sleeve component forms a surrounding outer chamber between the sleeve component and the inner core component when in place on the inner core component, the inner core component also having a central chamber with at least one pair of oppositely facing window openings, each having a given width, for exhausting gases from the central chamber into the surrounding outer chamber; wherein the inner core component is a one piece design, fanned of a single piece of metal, the inner core component also having an exterior longitudinal region forward of the central chamber, the exterior region having a series of longitudinally aligned, upwardly extending teeth formed therein, the teeth being formed therein only forward of the central chamber for diverting the hot, high speed gases contacting the upwardly extending teeth; and wherein the central bore of the suppressor feeds into the central chamber of the inner core component and then into a continuation bore running parallel to the exterior longitudinal region which comprises a continuous longitudinal passageway through the single piece of metal which forms a part of the central bore of the inner core component, and wherein the width of the window openings and the spacing of the rifle crown from the continuation bore are intentionally sized so that a bullet exiting the rifle barrel enters the continuation bore of the suppressor before the bullet completely exits the crown of the rifle barrel; and wherein the continuation bore has a bore opening defined by a chamfer region around the bore opening, the chamfer region creating a venturi effect with respect to the flow of hot, high speed exhaust gases around the bullet in the central chamber as the bullet leaves the central chamber and enters the continuation bore which straightens the bullet path.