Patent ID: 9291417
Filing Date: 2016-03-22
CPC Classification: F41A

Claim Text:
1. A firearms noise suppressor for firearms that have a barrel with a distal end wherein the noise suppressor is attachable to the distal end of the barrel, the noise suppressor comprising: a housing having an exterior surface and an interior surface, an interior chamber defined by the interior surface of the housing, a proximate end that is attachable to the distal end of a firearm barrel, and a distal end, the housing being tapered at each of the distal and proximate ends; a barrel disposed within the interior chamber and having an exterior surface, and further having a length extending from the proximate end to the distal end of the housing, the barrel further having a plurality of perforations spaced apart along the length to vent exhaust gases, the perforations being oriented so that the vent direction of the exhaust gases varies from one perforation to the next; a plurality of perforated baffles spaced along the exterior surface of the barrel, each one of the plurality of perforated baffles extending from the exterior surface of the barrel to the interior surface of the housing and being sized to fit to the tapered shape of the housing; and a plurality of receiving grooves spaced along the interior surface of the housing to receive the baffles, whereby the tapered shape of the housing provides space for gas expansion and thereby enhances the suppression of noise from expanding gases.