Vacuum cleaning tool
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United States of America Patent
Stats
-
Oct 5, 1993
Grant Date -
N/A
app pub date -
Feb 19, 1992
filing date -
Feb 21, 1991
priority date (Note) -
In Force
status (Latency Note)
Importance
Abstract
A vacuum cleaning tool for a vacuum cleaner, including an intake opening and a brush roller that is disposed in the intake opening and is rotatably driven by an air turbine that in turn is driven by an intake air flow. To obtain a high torque at the brush roller even when the intake air stream fluctuates, the air turbine is embodied as a flow-through turbine having at least one ring-like blade arrangement, between the blades of which are formed axially delimited flow paths for radially receiving the intake air flow and guiding same into the center of the blade arrangement, and for radially discharging the intake air flow out of this inner space.
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