Abstract: An apparatus and method for a swimming pool cover is provided. At least two stationary support members are located proximate to a swimming pool and rises vertically above the swimming pool. A substantially rigid cover element frame is supported by said support members and is movable in a substantially vertical direction between a lowered position proximate to the top surface of the swimming pool and a raised position remote from the top surface of the swimming pool. A flexible cover element is supported by said cover element frame, wherein the flexible cover element is stretched proximate to said cover element frame. A collapsible upper vertex is formed within the cover element to prevent a quantity of precipitation from collecting on top of the cover element. A vertical movement control system is located partially within at least one of the support members and controls movement of the cover element frame.

Abstract: An apparatus and method for a swimming pool cover is provided. At least two stationary support members are located proximate to a swimming pool and rises vertically above the swimming pool. A substantially rigid cover element frame is supported by said support members and is movable in a substantially vertical direction between a lowered position proximate to the top surface of the swimming pool and a raised position remote from the top surface of the swimming pool. A flexible cover element is supported by said cover element frame, wherein the flexible cover element is stretched proximate to said cover element frame. A collapsible upper vortex is formed within the cover element to prevent a quantity of precipitation from collecting on top of the cover element. A vertical movement control system is located partially within at least one of the support members and controls movement of the cover element frame.

Abstract: A foot operated control apparatus for randomly selecting any function and subsequently activating that function of a multi-function device that includes a base assembly and a foot operator assembly. The foot operator assembly is capable of being articulated in at least distinct three directions of travel with respect to the base assembly. The foot operator assembly may be selectively moved by the foot of the user in any of the directions, separately or in combination, to provide a floating-like movement. This apparatus includes indicating means for providing physical sensory indications to the user during the random selection and activation of a function.