Pavement/surface sweeper having a simplified hydraulic system

Details Pavement/surface sweeper having a simplified hydraulic system Pavement/surface sweeper having a simplified hydraulic system

2006-10-25

2008-10-28

Redding, David A (Department: 3723)

Brushing, scrubbing, and general cleaning

Machines

With air blast or suction

C015S349000, C015S082000

Reexamination Certificate

active

07441303

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).

REFERENCES:
patent: 6959466 (2005-11-01), Alowonle et al.

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