Patent ID: 6827120
Filing Date: 2004-12-07
Classification: E04H

Abstract:
A pool cover system for operating a buoyant cover and where the cover is controlled in at least closing movements of said cover relative to a swimming pool, said pool cover system comprising:a) a rotatable cover drum for winding a buoyant cover comprised of at least one buoyant panel onto said drum and allowing the force of gravity or buoyancy acting upon said tool cover to cause an unwinding of the cover from the drum to a closed position so that the cover may extend across and cover the swimming pool; b) a fluid motor for causing driving movement of the cover drum allowing the pool cover to move across a swimming pool to an open position with winding of the cover onto the cover drum; and c) a travel limiting means for controlling the limits of movement of the cover and stopping movement of the cover through the action of a fluid pressure differential which is generated when the cover has reached a closed position to preclude further movement of the cover at the closed position, and electrical means operable in response to said fluid pressure differential to initiate an electrical response and stop rotation of said drum when the cover reaches the closed position.