Water suction powered automatic swimming pool cleaning system
First Claim
1. Apparatus configured to be driven by a negative pressure water source for cleaning a water pool contained by a containment wall having an interior surface, said apparatus comprising:
- a unitary body configured for immersion in and movement through said water pool;
a controller for selectively causing said body to move either in a forward direction or in a second direction different from said forward direction;
said controller including (1) a periodic control device for alternately defining first and second conditions and (2) a motion responsive control device for defining a first condition when the forward motion of said body is greater than a certain threshold and a second condition when the forward motion of said body is less than a certain threshold; and
wherein said controller causes said body to move in said second direction when said periodic control device and said motion responsive control device concurrently define said respective second conditions.
1 Assignment
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Accused Products
Abstract
A method and apparatus powered from the suction side of a pump for cleaning the interior surface of a pool containment wall and the upper surface of a water pool contained therein. The apparatus includes an essentially unitary cleaner body and a controller for selectively causing the body to move either in a forward direction or a non-forward direction. The controller includes (1) a periodic control device for alternately defining forward and non-forward states and (2) a motion responsive control device defining a first condition when the forward motion of the body exceeds a certain threshold and a second condition when the forward motion of said body is less than said threshold.
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Citations
9 Claims
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1. Apparatus configured to be driven by a negative pressure water source for cleaning a water pool contained by a containment wall having an interior surface, said apparatus comprising:
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a unitary body configured for immersion in and movement through said water pool;
a controller for selectively causing said body to move either in a forward direction or in a second direction different from said forward direction;
said controller including (1) a periodic control device for alternately defining first and second conditions and (2) a motion responsive control device for defining a first condition when the forward motion of said body is greater than a certain threshold and a second condition when the forward motion of said body is less than a certain threshold; and
whereinsaid controller causes said body to move in said second direction when said periodic control device and said motion responsive control device concurrently define said respective second conditions. - View Dependent Claims (2, 3, 4)
a negative pressure water source for driving said turbine.
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3. The apparatus of claim 1 wherein said controller defines a first aperture;
- and wherein
said periodic control device alternately opens and closes said first aperture.
- and wherein
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4. The apparatus of claim 3 wherein said controller defines a second aperture;
- and wherein
said motion responsive control device includes a paddle mounted for pivotal movement between a first position closing said second aperture and a second position opening said second aperture.
- and wherein
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5. Apparatus configured to be driven by a negative pressure water source for cleaning a water pool contained by a containment wall having an interior surface, said apparatus comprising:
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a unitary body configured for immersion in and movement through said water pool;
a controller for selectively moving said body to in either in a forward direction or in a second direction different from said forward direction;
said controller including (1) a periodic control device for alternately defining a forward state and a non-forward state and (2) a motion responsive control device for defining a first condition when the forward motion of said body is greater than a certain threshold rate and a second condition when the forward motion of said body is less than a certain threshold rate; and
whereinsaid controller causes said body to move in said second direction when said periodic control device defines said non-forward state and said motion responsive control device concurrently defines said second condition. - View Dependent Claims (6, 7, 8)
a negative pressure water source for driving said turbine.
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7. The apparatus of claim 5 wherein said motion responsive control device includes a paddle mounted for pivotal movement between a first position defining said first condition and a second position defining said second condition.
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8. The apparatus of claim 5 wherein said controller discharges a jet directed rearwardly to move said body in a forward direction and a jet directed other than rearwardly to move said body in a second direction.
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9. A method for propelling a body through a water pool contained by a containment wall including:
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periodically switching between a first control state and a second control state distinguishable from said first control state;
determining whether the forward motion of said body is greater or less than a certain threshold rate; and
propelling said body in a non-forward direction when said first control state is defined and said forward motion is concurrently less than said certain threshold rate.
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Specification