Brushing – scrubbing – and general cleaning – Machines – With air blast or suction
Reexamination Certificate
2008-05-13
2008-05-13
Thomas, David B (Department: 3723)
Brushing, scrubbing, and general cleaning
Machines
With air blast or suction
C015S354000
Reexamination Certificate
active
07370387
ABSTRACT:
There is provided a hand-holdable vacuum cleaner, comprising: an electric motor; an electrical on-off switch for operating said motor; a fan connected to an output shaft of said motor; an airflow pathway comprising an inlet for dirty air, an outlet for clean air, and a collection chamber located in fluid communication between said inlet and said outlet; means for separating out debris entrained with dirty air entering via said inlet and depositing the debris in said collection chamber; and means for adjusting an angle of said inlet relative to a main axis of said vacuum cleaner; wherein the vacuum cleaner further comprises a rigid, elongate nose having said inlet at one end thereof, said nose being pivotable relative to said main axis through an angle of at least 135 degrees. The elongate nose can be pivoted from a first, folded position in which it is angled alongside the main axis of the vacuum cleaner, substantially parallel thereto, allowing the vacuum cleaner to be stored in a very compact overall space, to a second, extended position in which it is angled by only a small amount or not at all from the main axis of the vacuum cleaner to provide an extension thereof. Secondly, since the nose is rigid and elongate and has the dirty air inlet located at one end thereof, it may be introduced into narrow spaces without any need to be supported by a hand of a user, unlike a flexible hose extension known from prior art hand-holdable vacuum cleaners.
REFERENCES:
patent: 4573237 (1986-03-01), Kochte et al.
patent: 5377383 (1995-01-01), Christensen
patent: 5440781 (1995-08-01), Kitazawa et al.
patent: 6108864 (2000-08-01), Thomas et al.
Coburn Eric
Rowntree David
Walker Andrew
Black & Decker Inc.
Muller Wesley
Shapiro Bruce S.
Thomas David B
Yun John
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