Vacuum filter cleaning device
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United States of America Patent
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-
Dec 11, 2012
Grant Date -
Jan 21, 2010
app pub date -
Jan 23, 2009
filing date -
Jan 31, 2008
priority date (Note) -
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status (Latency Note)
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Abstract
A vacuum may include a housing defining a suction inlet opening and a debris chamber in communication with the suction inlet opening, a suction device disposed in the housing for providing a vacuum pressure to the inlet opening, a filter disposed in an airflow path between the suction inlet opening and the suction device, and a motor driving a device for disengaging debris from the filter. The device for disengaging debris from the filter may include at least one finger disposed on a belt or a rake. The device for disengaging debris from the filter may include a vibration device that induces a vibration in the filter. A controller can allow electric current to actuate the device for disengaging debris from the filter. The controller can have a plurality of operational modes.
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