Gas separation – Plural serial basically diverse separating media – Plural stages in unitary casing
Reexamination Certificate
2005-01-31
2009-08-11
Greene, Jason M (Department: 1797)
Gas separation
Plural serial basically diverse separating media
Plural stages in unitary casing
C055S373000, C055S337000, C055S413000, C055S426000, C055S486000, C055S459100, C055S487000, C055SDIG030
Reexamination Certificate
active
07572307
ABSTRACT:
A filter apparatus and a vacuum cleaner incorporating the filter apparatus are disclosed. The filter apparatus has a first, fine filter assembly and a second, coarse filter assembly. The fine filter assembly includes a body defining a central aperture in which a pleated fine filter element is arranged. The periphery of aperture is surrounded by a resilient rubber sealing member. Apertures are arranged around the body portion radially outwards of the aperture and sealing member for mounting the fine filter assembly to pins on housing of the vacuum cleaner. The body is also provided with radially inwardly facing slots for engaging corresponding projections on a coarse filter assembly for removably mounting the coarse filter assembly to the fine filter assembly. The removable coarse filter assembly gives the user a choice between two stage filtration (i.e. using the fine and course filter assemblies) or single stage filtration (i.e. using the fine filter assembly only).
REFERENCES:
patent: 4213224 (1980-07-01), Miller
patent: 4592764 (1986-06-01), Ikezaki et al.
patent: 4831685 (1989-05-01), Bosyj et al.
patent: 6110248 (2000-08-01), Liu
patent: 6314610 (2001-11-01), Miller et al.
patent: 6434785 (2002-08-01), Vandenbelt et al.
patent: 6546592 (2003-04-01), Cockburn et al.
patent: 7086119 (2006-08-01), Go et al.
patent: 7135051 (2006-11-01), Baldinger et al.
patent: 7185394 (2007-03-01), Hafling et al.
patent: 7260867 (2007-08-01), Overvaag
patent: 7325274 (2008-02-01), Jeong
patent: 2004/0163368 (2004-08-01), Lee et al.
patent: 1 070 478 (2001-01-01), None
patent: 2 305 113 (1997-04-01), None
patent: 2004160150 (2004-06-01), None
Black & Decker Inc.
Greene Jason M
Muller Wesley
Pham Minh-Chau T
Shapiro Bruce S.
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