Brushing – scrubbing – and general cleaning – Machines – With air blast or suction
Reexamination Certificate
2007-12-10
2011-10-25
Redding, David (Department: 3723)
Brushing, scrubbing, and general cleaning
Machines
With air blast or suction
C015S381000, C015S382000, C015S383000, C015S392000
Reexamination Certificate
active
08042222
ABSTRACT:
A vacuum attachment for a vacuum cleaner including a housing having a vacuum channel. A roller is rotatably and displaceably disposed in a region of the vacuum channel and driveable during a vacuuming operation. The roller includes at least one of bristles and baffle walls configured to be in partial contact with a floor covering during the vacuuming operation. At least one roller magnet is disposed on the roller at least one end thereof. At least one housing magnet is non-rotatably disposed on the housing axially adjacent to the at least one roller magnet and configured to interact with the at least one roller magnet so as to alternately at least one of attract and repel the roller so that the roller performs an oscillatory motion as it rotates.
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International Search Report for PCT/EP2007/010726, mailed on Apr. 1, 2008.
Behrenswerth Martin
Druecker Markus
Ennen Guenther
Wolf Cornelius
Leydig , Voit & Mayer, Ltd.
Miele & Cie. KG
Redding David
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