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US 2022/0408990 A1Published application
Floor cleaning machine
AssigneeHako GmbH
InventorsCarsten PROTZ, Bertram ULRICH
Life of this patent
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AssigneeHako GmbH
InventorsCarsten PROTZ, Bertram ULRICH
Estimating the term…
A floor cleaning machine having a base, a suction foot, a dirty water tank in fluid communication with the suction foot, a suction turbine, and a separation container. The suction turbine is attached to the base and generates a suction air flow from the suction foot into the dirty water tank. The suction turbine has a housing with an inlet opening and an outlet opening through which air flows. The separation container adjoins the suction turbine housing and has an interior, which that communicates with the inlet opening and a bottom wall section that faces the interior. The bottom wall section is disposed vertically lower than the inlet opening. A drainage opening leads out of the bottom wall section into the environment and is provided with a valve that is closed during operation of the suction turbine is in operation and open when the suction turbine is not operated.
A floor cleaning machine comprising:
The floor cleaning machine of claim 0, wherein the valve is configured in such a way that it closes when a pressure in the separation container is below the ambient pressure and opens when the pressure in the separation container is greater than or equal to the ambient pressure.
The floor cleaning machine of claim Error! Reference source not found., wherein the valve has a flexible tab, which is attached to the outside of the separation container, opposite the drainage opening, and
The floor cleaning machine of claim Error! Reference source not found., wherein the suction turbine has a turbine motor with a rotationally driven motor shaft, wherein the motor shaft extends along the turbine wheel axis and is connected to the turbine wheel.
The floor cleaning machine of claim Error! Reference source not found., wherein the inlet opening section is a part of the bottom wall section which is closest to the inlet opening when viewed along the vertical axis.
The floor cleaning machine of claim Error! Reference source not found., wherein the inlet is provided in a wall section of the separation container which, when viewed from the interior, faces away from the engagement element plane.
Dependencies are inferred from the claim text.