Patent ID: 8266752
Filing Date: 2012-09-18
Classification: E04H

Abstract:
1. Apparatus for cleaning a water pool, said apparatus comprising: a cleaner body adapted for immersion in said water pool, and configured to define a direction of forward motion relative to said body; a force generator selectively operable to apply a propulsion force F a motion sensor responsive to the rate of forward body motion being less than a first threshold rate for providing a low motion signal; said force generator being selectively operable to apply a reposition force F a control subsystem actuatable to execute a reposition operation comprised of one or more successive redirect actions where each such redirect action includes operating said force generator to sequentially apply said force F said control subsystem is actuated in response to said motion sensor providing said low motion signal and includes means for terminating said reposition operation in response to said body exhibiting sustained forward motion greater than a second threshold rate.