Patent ID: 9545179
Date: 2017-01-17
CPC Classifications: A47L,B01D

Claim:
1. An exhaust turbulence attenuator for vacuum cleaning equipment comprising, in combination: a flexible attachment collar having an inlet and an outlet, said inlet being in direct communication with said vacuum cleaning equipment for receiving a flow of exhaust air from said vacuum cleaning equipment, said flexible attachment collar defining a channel; a diffusion chamber being in direct communication with said flexible attachment collar, said diffusion chamber including a series of porous fabric layers of fine pore densities, said layers being arranged one inside another; and air control means for directing said flow of exhaust air from said inlet into said layers of said porous fabric layers and through said series of porous fabric layers, whereby the turbulent air flow produced by said vacuum cleaning equipment and carried by said flow of exhaust air is substantially directed into a vortexed flow pattern with a subsequent attenuation of turbulence by said porous fabric layers.