Abstract: Apparatus for extracting fluid from rotary air filters including novel support means upon which an individual filter is mounted and means for imparting rotation thereto for effecting centrifugal extraction. The support means includes a base member, which receives the rotational motive power, and a lower support member resiliently biased in spaced relation to the base member in a manner minimizing the possibility of damage due to vibration or unbalance. Upper support means include a pair of annular rings, one of which is vertically adjustable with respect to the other, which encircle the mounted filter. Annular discs having central openings matched to the outside diameter of the mounted filter may be removably mounted upon the vertically adjustable support ring.

Abstract: A cleaning system for cleaning cylinrical filters includes a housing having an opening on one side thereof, a motor driven turntable for supporting a filter to be cleaned, a plurality of spray nozzles selected to provide spray at predetermined heights and at predetermined distances from the perimeter of the filter to be cleaned, a high pressure pump for supplying cleaning fluid to the cleaning nozzles and first and second rinse nozzles, the first rinse nozzle being adjustable in both the vertical and horizontal directions relative to the filter to be cleaned, the second nozzle being horizontally adjustable to clean the bottom pan of the filter to be cleaned, the first and second rinse nozzles being connected to a water source at normal main pressure. Each of the external wash nozzles above a predetermined height from the bottom of the filter being individually controllable to provide a proper wash spray for optimum cleaning of a filter.