A system for adjusting surface level, comprising a moveable surface; a mechanism adapted to be disposed between and coupled to the moveable surface and a fixed surface; a force transfer mechanism configured to be coupled to the mechanism for displacement of the moveable surface relative to the fixed surface; and a plurality of stopping rods, disposed between the moveable surface and the fixed surface, which are operative for restricting an axial movement of the moveable surface relative to the fixed surface in a first mode of operation and for restricting a radial movement of the moveable surface relative to the fixed surface in a second mode of operation.

A latch system that attaches to a retractable load bearing pool cover. The latch system interconnects deployable and retractable load-bearing floor panels or pool cover panels that may be separable into individual sections for compact vertical stacking and storage when the panels are retracted.

The pool safety net system incorporates an adjustable flooring in a pool structure. The adjustable flooring installs in the pool structure. The adjustable flooring forms a horizontal surface that supports objects that sink into the pool structure. The adjustable flooring is adjustable such that the depth that an object sinks into the pool structure is adjustable. The pool safety net system further comprises a control circuit. The control circuit controls the adjustment of the adjustable flooring. The control circuit is remotely controlled.

The present invention relates to an extendable container for fluids with variable containment volume and dimensions, which comprises one or more elements independent and capable of relative movement among themselves.

Described is a submersible floor or deck deployable in swimming pools and spas. The floor and seat panels are assembled and deployed in the basin or pool. The floor is mounted to a scaffolding and can be moved reversibly by a water pump or a hydraulic actuator between a lowered state substantially parallel to a floor of the pool and a raised state that is substantially flat and horizontal at a level substantially even with a top edge of the pool or spa. One version uses water flow from an existing or conventional water pump to circulate water that impinges on a paddlewheel that, in turn, drives one or more vertically mounted screws. The screws provide the vertical motive force to the floor.

A system for adjusting surface level, comprising a moveable surface; a mechanism adapted to be disposed between and coupled to the moveable surface and a fixed surface; a force transfer mechanism configured to be coupled to the mechanism for displacement of the moveable surface relative to the fixed surface; and a plurality of stopping rods, disposed between the moveable surface and the fixed surface, which are operative for restricting an axial movement of the moveable surface relative to the fixed surface in a first mode of operation and for restricting a radial movement of the moveable surface relative to the fixed surface in a second mode of operation.

The invention relates to a covering device for liquid tanks, in particular swimming pools, comprising a buoyant covering element, the covering element comprising a continuous covering layer and a fluid chamber connected to the covering layer, a pumping being provided, which is designed to convey a liquid, in particular water, and/or a gas, in particular air, into the fluid chamber. The invention also relates to an assembly of a covering device according to the invention together with a liquid tank.

Pool protection systems are disclosed. In one particular embodiment, a pool protection system may include a platform fitted in a pool, oriented substantially parallel to a surface of water in the pool, and configured to move vertically in the pool; one or more motors mechanically connected to the platform; and a controller in communication with the one or more motors.

A system for adjusting surface level, comprising a moveable surface; a mechanism adapted to be disposed between and coupled to the moveable surface and a fixed surface; a force transfer mechanism configured to be coupled to the mechanism for displacement of the moveable surface relative to the fixed surface; and a plurality of stopping rods, disposed between the moveable surface and the fixed surface, which are operative for restricting an axial movement of the moveable surface relative to the fixed surface in a first mode of operation and for restricting a radial movement of the moveable surface relative to the fixed surface in a second mode of operation.

A lifesaving system for a swimming pool includes a plurality of lifesaving modules. Each module includes a platform and is stowable in a standby configuration under a surface of water in the pool. The module is deployable to rise to a surface of water in the pool beneath a swimmer in distress so as to support the swimmer on the platform.