Pass-through vacuum

摘要

A pass-through vacuum includes a mixing tube and separate and removable housing extending along a mutual central longitudinal axis. The housing contains at least one location for retaining a nozzle which extends along a nozzle axis and has 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 an aperture. The nozzle axis of the nozzle extends at an acute angle with respect to the central longitudinal axis of the mixing tube. The at least one nozzle accelerates gas from the compressed gas source to create an improved performance to entrain gas and material to flowing through the mixing tube from the entrance end to the exit end. The mixing tube and the housing can each be independently configured to optimize their function and performance.