Gas separation – Multiple separators – each with discrete and longitudinally... – Combined serial and parallel arrangement
Reexamination Certificate
2011-01-11
2011-01-11
Hopkins, Robert A (Department: 1776)
Gas separation
Multiple separators, each with discrete and longitudinally...
Combined serial and parallel arrangement
C055S349000, C055S429000, C055S433000, C055SDIG030
Reexamination Certificate
active
07867307
ABSTRACT:
A cyclonic separating apparatus for a cleaning appliance includes a plurality of cyclonic separators arranged in series for separating particles from a dirt- and dust-laden airflow, at least two or three collectors for collecting separated dirt and dust, and a closure member movable between a closed position in which the closure member closes an end of each collector and an open position in which separated dirt and dust can be emptied from the collectors. The ends of the collectors are separated by dividing walls. A expandable seal is provided between the closure member and the dividing walls to seal when the closure member is in the closed position. The expandable seal is able to seal effectively even if the closure member is misaligned, incorrectly fitted or if dirt and dust is present between the surfaces to be sealed.
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Bates Adam James
Stickney Timothy Nicholas
Dyson Technology Limited
Hopkins Robert A
Morrison & Foerster / LLP
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