CPC E04H 4/1654 (2013.01) | 16 Claims |
1. A method of causing an automatic swimming pool cleaner having a body, a first motive element, and a second motive element to travel laterally along a surface of a swimming pool while the body is oriented vertically relative to a waterline of the swimming pool and while contacting the surface of the swimming pool by varying a characteristic of operation of the first motive element relative to the second motive element.
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