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US 4,835,809 AGranted
Apparatus for automatic cleaning particularly of the bottom of a swimming pool
OwnerMax Roumagnacinventor
Life of this patent
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OwnerMax Roumagnacinventor
Estimating the term…
An apparatus for filtering debris from a body of liquid, particularly for automatic cleaning of the bottom of a swimming pool. The apparatus includes a housing having a liquid inlet, a liquid outlet, and a filter located between the inlet and outlet. The apparatus is configured such that liquid is expelled from the housing through the outlet in a direction along a line which does not intersect the axis of symmetry of the housing, which tends to provide a force for rotating the housing about its axis of symmetry. A device is further provided for counteracting the rotational force to propel the apparatus substantially rectilinearly. When an obstacle is encountered by the apparatus, such as a wall of the swimming pool, the device for counteracting the rotational force is no longer effective to maintain rectilinear movement. Consequently, the apparatus rotates and then moves rectilinearly away from the obstacle or wall. Repeated movement in this manner is effective to remove debris from the entire bottom surface of the swimming pool or like surface. The apparatus can also be made to float and to thereby clean the upper surface of a body of liquid, particularly the upper surface of a swimming pool. pe
Apparatus for the automatic cleaning of a bottom surface of a pool comprising a generally cylindrical aspiration container having a substantially vertical axis during operation provided with a removable bottom defining therewith an aspiration orifice situated in a plane substantially parallel to and spaced a small distance from said bottom surface to be cleaned, and an outlet orifice, a filter positioned in said container between said aspiration orifice and said outlet orifice, a means integral with said container for aspirating the water from said container, said apparatus further comprising propulsive means comprising a pipe connected to said means for aspirating said water to thereby send said water into said pipe along a predetermined axis, said pipe carried by said container and oriented substantially parallel to said surface to be cleaned, said apparatus further comprising a deflector wing positioned in a predetermined plane and attached to said container, said axis of said pipe being laterally offset to thereby not intersect said vertical axis of said container and intersecting said plane of said deflector wing.
An apparatus for cleaning a body of liquid comprising:
An apparatus for filtering debris from a body of liquid comprising a housing, said housing comprising a liquid inlet and a liquid outlet and an axis of symmetry, means for filtering located between said inlet and said outlet, means for expelling liquid from said housing through said liquid outlet in a direction along a line not intersecting said axis of symmetry, for providing a propelling force to said apparatus, and means fixed relative to said outlet for directing said apparatus substantially rectilinearly within said body of liquid.
Dependencies are inferred from the claim text.