Cannister and upright vortex vacuum cleaners
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United States of America Patent
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Oct 25, 2005
Grant Date -
Jul 17, 2003
app pub date -
Jan 16, 2002
filing date -
May 21, 1999
priority date (Note) -
Expired
status (Latency Note)
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Abstract
The present invention relates to upright and cannister vacuum cleaners. The improved vacuum cleaners utilize toroidal vortex technology to provide efficient airflow in a sealed system. The sealed system prevents dust from escaping into the atmosphere and retains kinetic energy of flowing air. The present invention is also quieter, lighter, and simpler than conventional designs.
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Family
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Cited Art Landscape
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