Pavement/surface sweeper having a simplified hydraulic system
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United States of America Patent
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Oct 28, 2008
Grant Date -
Jun 7, 2007
app pub date -
Oct 25, 2006
filing date -
Oct 25, 2005
priority date (Note) -
Expired
status (Latency Note)
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Abstract
A sweeper unit well-suited for use for sweeping paved areas includes a debris-retaining hopper with an associated fan assembly that includes an air outlet duct for connection to one side of a pick-up head and an inlet duct for connection between the other side of the pickup head and the debris-retaining hopper. A fan drive arrangement includes at least a first and a second hydraulic displacement device to drive the fan and, when required, provide a flow of hydraulic fluid for auxiliary devices including the gutter broom motor(s).
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