Gas separation – With nonliquid cleaning means for separating media – Solid agent cleaning member movingly contacts apparatus
Patent
1990-07-06
1991-11-05
Hart, Charles
Gas separation
With nonliquid cleaning means for separating media
Solid agent cleaning member movingly contacts apparatus
55215, 55337, 55345, 55429, 554593, 55DIG3, B01D 3912
Patent
active
050628704
ABSTRACT:
A dual cyclonic vacuum cleaner device (10) including outer cylcone (11), inner cyclone (12), collecting receiver (13) and motor (14) and a valve (46) in a housing (38) which preferably closes a passage into an inlet scroll (27) leading to the inner cyclone when the outer cyclone is full is described. The valve rises to meet a ring stop (47) to cause the closure because of the differential pressure (.DELTA.P) between a pressure at an opening (45) and a pressure inside of the housing. The valve (46) prevents dirt laden air from entering directly into the shroud 31 which could plug the inner cyclone, put dirt in the vacuum motor and expel dirt laden air to the atmosphere.
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Hart Charles
McLeod Ian C.
Notetry Limited
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