Patent ID: 8719997

Claim:
A pass-through vacuum, comprising: a mixing tube extending along a central longitudinal axis between an entrance end and an exit end, the mixing tube including a tube wall having an inner cylindrical surface defining a hollow interior of the mixing tube and an outer surface defining a periphery of the mixing tube and at least one aperture extending through the tube wall from the outer surface to the inner cylindrical surface of the tube wall; a housing removably disposed on the periphery of the mixing tube and connected to the outer surface of the mixing tube by a connector; and at least one nozzle disposed within the housing, the at least one nozzle extending along a nozzle axis and having an inlet configured to be in fluid communication with a compressed gas source and an outlet in fluid communication with the hollow interior of the mixing tube via the at least one aperture in the mixing tube wall, wherein the housing retains the at least one nozzle proximate to the periphery of the mixing tube and aligns the outlet of the at least one nozzle with the at least one aperture in the mixing tube wall, wherein the nozzle axis of the at least one nozzle extends at an acute angle with respect to the central longitudinal axis of the mixing tube, and wherein the at least one nozzle is configured to accelerate gas from the compressed gas source as the gas enters the hollow interior of the mixing tube via the at least one nozzle and the aperture to create an entrained gas flow through the mixing tube from the entrance end to the exit end.