Self-cleaning air filter system

Gas separation – With nonliquid cleaning means for separating media – Cohesive filter media cleaning

Patent

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Details

55385B, 55310, 55498, 406172, 406173, B01D 4604

Patent

active

044823673

ABSTRACT:
A self-cleaning impingement type air filter unit is mounted on a flexible elastomeric support member comprising an end wall of a filter housing exposed to the pressure differential between the interior housing chamber and the ambient pressure of the clean air discharge conduit. A standard pleated paper type porous media filter element is mounted on the flexible wall member and includes a support plate on which a mechanical vibrator is mounted whereby the complete filter element is mechanically oscillated to dislodge accumulated material on the surface of the filter media. The filter support structure includes a mounting flange which is adapted to be supported on a filter housing by yieldable springs which permit movement of the entire filter element and support structure to function as a pressure relief valve to limit the pressure differential across the filter housing. The system is particularly adapted for use with bulk material conveying systems operating at relatively low conveying air pressures of approximately 15 psig.

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patent: 4345353 (1982-08-01), Sommerfield

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