Gas separation: processes – Filtering
Reexamination Certificate
2007-06-26
2007-06-26
Smith, Duane (Department: 1724)
Gas separation: processes
Filtering
C055S478000, C055S480000, C055S529000, C055S357000, C055SDIG030, C015S347000
Reexamination Certificate
active
10746971
ABSTRACT:
A method and structure for externally removing a filter apparatus from a vacuum cleaner. The vacuum cleaner comprises a vessel, a lid removably attached to the vessel, a port, a suction apparatus adapted to create a vacuum within the vessel and draw a substance through the port into the vessel, and a filter apparatus positioned between the port and the suction apparatus. The filter apparatus comprises a frame and a filter. The filter is adapted to remove a plurality of particles from the substance. The filter apparatus is adapted to be removed from the vacuum cleaner without removing the lid.
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Clemente Robert
Schmeiser Olsen & Watts
Smith Duane
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