Gas separation – With nonliquid cleaning means for separating media – Solid agent cleaning member movingly contacts apparatus
Patent
1996-04-15
1998-01-27
Bushey, C. Scott
Gas separation
With nonliquid cleaning means for separating media
Solid agent cleaning member movingly contacts apparatus
15352, 55284, 55289, 55299, 55300, 55304, A47L 920, B01D 4604
Patent
active
057117756
ABSTRACT:
A sweeping machine includes a housing, wheels for moving the housing and a sweeping brush mounted on the housing. There is a hopper positioned adjacent the brush to receive dust and debris from the rotating brush. A dust collection chamber is located on the housing and a vacuum fan mounted on the housing creates an air flow path from the brush through the hopper into the dust collection chamber. A filter element is positioned in the air flow path with the filter element including a plurality of generally parallel pleats extending in a direction transverse to the air flow path. There is a plurality of electric coils positioned adjacent the pleats. A plurality of metal elements are associated with the pleats. Pulsed electric power is applied to the coils with the electromagnetic fields caused thereby moving the metal elements reciprocally back and forth and the pleats associated therewith to impart a shaking, cleaning movement to the pleats.
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Field Bruce F.
Narayan Nilabh
Bushey C. Scott
Tennant Company
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