Hopper assembly with filter module for surface maintenance machine
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United States of America Patent
Stats
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Jun 11, 2013
Grant Date -
Sep 3, 2009
app pub date -
Mar 2, 2009
filing date -
Feb 29, 2008
priority date (Note) -
In Force
status (Latency Note)
Importance
Abstract
A mobile surface maintenance machine with a debris hopper and a filter module providing at least two filter stages for separating dust and debris within the debris hopper, the filter module including a filter shaking mechanism and a housing adapted to seal against the upper opening of the debris hopper, and wherein the debris hopper is removed from air communication with the exhaust fan when the debris hopper is in a debris dump configuration and is returned to air communication with the exhaust fan when the debris hopper is lowered into an operational configuration.
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Family
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Cited Art Landscape
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