Dust filter with cleaning action - having spring which moves cloth when suction fan is turned off

摘要

Dusty air is pulled through a filter by means of a fan. The filter has a permeable wall on which is laid a medium, with springs between it and the wall. When the fan is switched off a slight movement is induced in the filter cloth by the spring. The permeable wall can consist of a flat plat with projections or a domed lattice type housing. The filter itself is flat and lies across the projection or is domed to fit the dome shaped support. Leaf springs of circular or bow shape can be used with several across the filter element. Used to remove dust from air streams. The filter is extremely simple and has a wide range of application.