Abstract:
An impeller for centrifugal pumps with permanent-magnet synchronous motor, comprising a main blade array (4a-4c) and an additional blade array (6a-6c) of moving blades; in the nominal direction of rotation the moving blades are resting on the main blades, so that they work as a single blading; in the event of reverse rotation the moving blades are separated from the main blades, so that they can act separately on the fluid flow.
Abstract:
A structure for realizing basins provided with accessory technological systems, in particular for realizing water massage basins or above-ground swimming pools, comprising lateral walls (2) realized in a hollow body, which contain said accessory technological systems (3), and at least one sealing water-proof membrane (4), connected in a removable manner to said lateral walls (2).
Abstract:
Above-ground swimming pool, comprising at least one basin (1), consisting of a waterproof sheet (9) and of a supporting structure (2), further comprising an overflowing channel (3) contained in a space (V) of said supporting structure (2) defined between first support means, adjacent to said basin (1), and second support means, external to said first support means. The overflowing channel (3) may consists of an impermeable sheet (10) hooked to the supporting structure (2).
Abstract:
A gravity filter for overflowing swimming pools comprising a basin (1) and an overflowing channel (2) closed in the upper part by a pedestrian covering, wherein the filter is made by means of a filtering mat (4), positioned in said overfliwing channel (2), above the water level of said channel (2) and below the water level of said basin (1), so that water overflowing from said basin (1) to said channel (2) passes through said filtering mat (4).
Abstract:
Quadrangular modular structure (100) for a quadrangular pool (1000) the quadrangular modular structure (100) comprising a plurality of side panels (110) comprising at least one side panel for each side of the quadrangular pool (1000), and a plurality of corner panels (120) associated with the corners of the quadrangular pool (1000), wherein the plurality of side panels (110) and the plurality of corner panels (120) are configured to be attachable to one another forming the quadrangular modular structure (100).
Abstract:
An impeller for centrifugal pumps with permanent-magnet synchronous motor, comprising a main blade array (4a-4c) and an additional blade array (6a-6c) of moving blades; in the nominal direction of rotation the moving blades are resting on the main blades, so that they work as a single blading; in the event of reverse rotation the moving blades are separated from the main blades, so that they can act separately on the fluid flow.
Abstract:
A structure for realizing basins provided with accessory technological systems, in particular for realizing water massage basins or above-ground swimming pools, comprising lateral walls (2) realized in a hollow body, which contain said accessory technological systems (3), and at least one sealing water-proof membrane (4), connected in a removable manner to said lateral walls (2).
Abstract:
A gas container at constant pressure, specifically for biogas, comprising, in combination, a flexible covering or outer membrane which covers the biogas source so as to form an insulated from the outside space or canopy and a flexible and impermeable membrane located at the inside of said space and thereby dividing it in two chambers or volumes of which a lower one is occupied by biogas and an upper one comprises an air chamber of lung from which and into which air is taken off or supplied to comply with the steps of collecting, stocking and taking off the biogas at a substantially constant pressure.