Granted Patent B1

US 8,056,155 · App. 13/186,313 · Granted Nov 15, 2011

Abstract

Claims (27)

1. A method of cleaning a swimming pool, the method comprising:

intermittently raising a nozzle head under water and ejecting a stream of water;

incrementally rotating the nozzle head in a clockwise direction;

retracting the nozzle head flush with an inner surface of the swimming pool;

sliding a cam reverser; and

reversing the direction of rotation of the nozzle head with the cam reverser to counterclockwise.

2. The method of claim 1 , further comprising the step of incrementally rotating the nozzle head in the counterclockwise direction, sliding the cam reverser, and reversing the direction of rotation of the nozzle head to clockwise.

3. The method of claim 2 , further comprising repeating the steps of incrementally rotating the nozzle head in the clockwise or counterclockwise direction, sliding the cam reverser, and reversing the direction of rotation of the nozzle head for a predetermined interval of time.

4. The method of claim 2 , further comprising repeating the steps of incrementally rotating the nozzle head in the clockwise or counterclockwise direction, sliding the cam reverser, and reversing the direction of rotation of the nozzle head according to a predefined pattern.

5. A method of cleaning a swimming pool with a pool cleaning head, the method comprising:

rotating a stem by sliding at least one pin coupled to the stem through at least one channel in a cam, the stem configured to release a stream of water under water in a swimming pool;

retracting the stem into the pool cleaning head such that the pool cleaning head is flush with an inner surface of the swimming pool; and

reversing the direction of rotation of the stem by sliding a slidable section of the cam with the at least one pin.

6. The method of claim 5 , wherein the at least one pin slides through the at least one channel when the stem is raised upward through water pressure force.

7. The method of claim 6 , wherein the at least one channel is a first channel and wherein the at least one pin slides through a second channel when the stem is retracted downward into a housing through bias from a spring element.

8. The method of claim 7 , further comprising repeating the raising and retraction of the stem for a predetermined number of steps.

9. The method of claim 5 , further comprising sliding a slidable section of the cam as the at least one pin reaches a predetermined limit within the cam.

10. A method of cleaning a swimming pool comprising the method comprising:

intermittently raising a nozzle head under water and ejecting a stream of water;

incrementally rotating the nozzle head in a clockwise direction;

retracting the nozzle head;

moving a cam reverser from a first position to a second position; and

reversing the direction of rotation of the nozzle head with the cam reverser to counterclockwise.

11. The method of claim 10 , wherein incrementally rotating the nozzle head comprises incrementally rotating the nozzle head clockwise through the intermittent raising of the nozzle head under water, wherein the cam reverser is a first disc positioned in the nozzle head.

12. The method of claim 11 , further comprising adjusting a rotational distance through which the nozzle head rotates by substituting a second disc for the first disc, the second disc being different from the first disc.

13. The method of claim 10 , wherein moving the cam reverser comprises moving the cam reverser about a longitudinal axis of the nozzle head.

14. The method of claim 10 , wherein the cam reverser comprises a first cam reverser, the method further comprising adjusting a rotational distance through which the nozzle head rotates by substituting a second cam reverser for the first cam reverser.

Assignments (8)