Turbo-brush for cleaning a surface
AssigneeNew Ermes Europe S.p.A.
InventorsRaffaele Marazzi, Ermes Roschi
Life of this patent
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Abstract
A turbo-brush for cleaning a surface comprises a casing provided with a suction opening, a rotating brush, a turbine which has a rotor provided with vanes and is operationally connected to the brush, a suction nozzle and a suction pipe connected to a suction device; the casing has a housing inside which the turbine is rotatably supported for rotating about an axis of rotation; the suction nozzle is located between said brush and said turbine for sucking an air flow from the suction opening, direct it onto the brush and then towards the turbine; the housing of the turbine has at least one lip projecting to a distance from an outer end of the vanes of the turbine which ranges from 0.001% to about 0.1% of the diameter of said rotor of said turbine.
Claims19
Turbo-brush for cleaning a surface, comprising a casing provided with a suction opening, a rotating brush provided with bristles, a turbine which has a rotor provided with vanes and is operationally connected to said brush, a suction nozzle and a suction pipe connected to a suction device, said casing having a housing inside which said turbine is rotatably supported for rotating about an axis of rotation, said suction nozzle being located between said brush and said turbine for sucking a flow of air from said suction opening, direct it onto said brush and then towards said turbine, characterized in that said housing of said turbine has at least one lip projecting to a distance from an outer end of the vanes of said turbine which ranges from about 0.001% to about 0.1% of the diameter of said rotor of said turbine.
Dependencies are inferred from the claim text.