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US 6,887,013 B2Granted
Device for treating soils or road surfaces
AssigneeWirtgen GmbH
InventorsHerbert Ley, Peter Busley, Walter Grueber
Life of this patent
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AssigneeWirtgen GmbH
InventorsHerbert Ley, Peter Busley, Walter Grueber
Estimating the term…
A device for treating soils or road surfaces includes a machine frame (1) carrying a working roll (4) in a working roll housing (8) defining a working space (6). The roll housing (8) is provided with a spraying mechanism (10) for binder or water having at least one outlet nozzle (12) opening directly into the working space (6). A controllable closing device (18) has a closing element (22) which, in an open position, unblocks the outlet nozzle (12) and in a first closed position, closes the outlet nozzle (12). The closing device (18) is capable of triggering an additional movement of the closing element (22) beyond the first closing position such that at a second closed position, material accumulations in and/or beyond the outlet nozzle (12) are removed.
A device for treating soils or road surfaces comprising a machine frame (1) carrying a working roll (4) in a working roll housing (8) and defining therewith a working space (6), the working roll housing (8) being provided with spraying means (10) for a binder or water and having at least one outlet nozzle (12) opening directly into the working space (6), a controllable closing means (18) having a closing element (22) which, in an open position, unblocks the outlet nozzle (12) and, in a first closed position, enters and closes the outlet nozzle (12), and the closing means (18) being further operative to trigger additional movement of the closing element (22) beyond the first closed position to a second closed position at which material accumulated in and/or beyond the outlet nozzle (12) is removed by the closing element (22).
Dependencies are inferred from the claim text.