Gas separation – Plural serial basically diverse separating media – Plural stages in unitary casing
Patent
1998-05-13
1999-10-05
Smith, Duane S.
Gas separation
Plural serial basically diverse separating media
Plural stages in unitary casing
15347, 15353, 55368, 55413, 55416, 55439, 55DIG3, B01D 4508, B01D 4610
Patent
active
059616768
ABSTRACT:
A hard bag cleaner door is disclosed having air directing rib vanes integral with its inner surface. These vanes take the form of, alternately, angled J-shaped ribs and short straight interleaved ribs. All the ribs are stepped so that the flow passage for air moving along the interior side of the bag door diverges as more bag air is introduced to it so that it directs efficiently air flow to a lower disposed motor-fan section of an adjoining hard bag portion. In a second embodiment, an exhaust opening is formed in the hard bag cleaner door below the air directing rib vanes and is covered by a final filter and final filter door. The air moving along the interior side of the bag door is directed out the exhaust opening, through the final filter which filters small dust particles which may be present in the exhaust air and out vent openings formed in the final filter door.
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Photographs of Kenmore Progressive Vacuum Cleaner--Received Oct. 09, 1997.
Photographs of Sharp Twin Energy Vacuum Cleaner--Received Nov. 05, 1997.
Photograph of Panasonic Excel Upright--Recieved Feb. 1992.
Photograph of Panasonic Power Wave Upright--Received Aug. 1997.
Photograph of Eureka Excalibur Canister--Received Mar. 1995.
Photograph of Eureka The Boss Excalibur Upright--Received Apr. 1996.
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Barker Douglas C.
Harsh Kurt D.
King Douglass A.
Lawer Raymond L.
Louis Jeffrey S.
Kingsbury Thomas R.
Lowe A. Burgess
Smith Duane S.
The Hoover Company
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