Protective structure for brushes of sweeping machines
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United States of America Patent
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-
Apr 6, 2010
Grant Date -
Apr 12, 2007
app pub date -
Oct 5, 2006
filing date -
Oct 7, 2005
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
The invention relates a protective structure for brushes of sweeping machines (30) having a frame (31) and at least one cup-shaped brush (20) supported protruding from the frame (31), said structure (1) comprising a flexible membrane (2), positioned near the cup-shaped brush (20) and suitable to prevent the diffusion of dust in the environment, and a supporting system (3) for the flexible membrane (2), the supporting system (3) being movably connected to the sweeping machine and comprising a movable portion (6) which shapes the flexible membrane (2) and elastically deforms near the frame (31) counter to elastic means (9).
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