Patent ID: 7305788

Claim:
A noise generation device used in conjunction with an incendiary blast generating means for generating a blast said generating means having a barrel with a length and a direction of travel comprising: a) at least one extension having a chamber continuous with the barrel for penetrating a structure for receiving the blast from the barrel with a first extension end and a second extension end opposite the first extension and at the point opposite the barrel; b) a connecting means for joining the at least one chamber to the barrel; c) and wherein the extension comprises at least one port defining an opening from the chamber having a first end near the barrel and a second end opposite the first end relative to the barrel; d) a channeling means for directing the blast towards the at least one port and wherein the at least one port opens in a direction different than the barrel and wherein the extension comprises an extension fitting over the barrel and wherein the second extension end further comprises at least one blade extending opposite the barrel, said blade extending along the longitudinal center of the barrel and at least one ramp extending from the at least one port towards the chamber center towards the barrel and wherein the second extension end comprises a clearing means for preventing the obstruction of the at least one port when the end is pushed through the structure.