Abstract: The invention is a cleaning apparatus for cleaning elongated and cylindrical filters, commonly referred to as pleated bag filters or pleated bag replacements for fabric sock filter bags, that are open on one end and closed on the other end. The filter is being rotated within a hermetically sealed cleaning chamber, air jets are reciprocated along the length of the filter in close proximity to a circumference of the cylindrical filter. The cleaning chamber is provided with a negative air pressure while the interior of the rotating filter is supplied with a positive air pressure. The air jets tend to loosen and remove the dirt from within the pleats of the filter which dirt is carried away by the negative pressure within the cleaning chamber.

Abstract: The invention is a cleaning apparatus for cleaning elongated and cylindrical filters, commonly referred to as pleated bag filters or pleated bag replacements for fabric sock filter bags, that are open on one end and closed on the other end. The filter is being rotated within a hermetically sealed cleaning chamber. air jets are reciprocated along the length of the filter in close proximity to a circumference of the cylindrical filter. The cleaning chamber is provided with a negative air pressure while the interior of the rotating filter is supplied with a positive air pressure. The air jets tend to loosen and remove the dirt from within the pleats of the filter which dirt is carried away by the negative pressure within the cleaning chamber.