Cyclonic vacuum cleaner with filter and filter sweeper

Details Cyclonic vacuum cleaner with filter and filter sweeper Cyclonic vacuum cleaner with filter and filter sweeper

2006-07-04

2006-07-04

Hopkins, Robert A. (Department: 1724)

Gas separation

With nonliquid cleaning means for separating media

Solid agent cleaning member movingly contacts apparatus

C055S304000, C055S305000, C055S337000, C055S477000, C055S472000, C055S482000, C055SDIG030, C015S350000, C015S353000

Reexamination Certificate

active

07070636

ABSTRACT:
A bagless vacuum cleaner (10) includes a nozzle assembly (16) having a suction nozzle for picking up dirt and debris from a surface to be cleaned and a canister assembly (18) including a cavity (32). A dust collection assembly (12) is received and held in that cavity (32). The dust collection assembly (12) includes a filtering subassembly (100) and a dust container (102). The dust container (102) has an open top (104), a bottom wall (106), a first cylindrical sidewall (108), an inlet (110), and a downwardly directed outlet (112) extending through the bottom wall. An airstream conduit is provided for conveying a vacuum airstream between the suction nozzle and the inlet. A filter (124, 138) is carried on the filtering subassembly (100). A sweeper (200) rotates relative to the filtering subassembly (100) to clean dirt and debris from at least a portion of the filter (138). A suction fan (34) and suction fan drive motor (35) carried on either the nozzle assembly (16) or the canister assembly (18) generates the vacuum airstream for drawing dirt and debris through the suction nozzle, the airstream conduit and the dust container (102).

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United States Statutory Invention Registration No. H535; Oct. 4, 1988, Sam et al., “Compact Device for Continuous Removal of Water From an Airstream-Cascade Screen”.

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