Abstract: A fountain attachment for water effects has an exterior pipe and an interior pipe disposed inside the exterior pipe. An adjustable nozzle of the fountain attachment has a slot size that can be adjusted by a coaxial displacement of the exterior pipe relative to the interior pipe. At least one guide ball is movably arranged between the exterior pipe and the interior pipe and pretensioned by at least one spring. The guide ball interacts with a guide contour for the coaxial displacement by a rotation of the exterior pipe and the interior pipe relative to each other. A pressure element is arranged between the spring and the guide ball.

Abstract: A fountain attachment for water effects has an exterior pipe and an interior pipe disposed inside the exterior pipe. An adjustable nozzle of the fountain attachment has a slot size that can be adjusted by a coaxial displacement of the exterior pipe relative to the interior pipe. At least one guide ball is movably arranged between the exterior pipe and the interior pipe and pretensioned by at least one spring. The guide ball interacts with a guide contour for the coaxial displacement by a rotation of the exterior pipe and the interior pipe relative to each other. A pressure element is arranged between the spring and the guide ball.

Abstract: A water nozzle with a flow head is provided with at least two separate water supply devices that supply, in a controllable fashion, different water volume flows to the flow head. The flow head generates an annular jet from the different water volume flows. By controlling the water volume flows, alternatively a slim annular jet or a widened annular jet is generated by the flow head. A deflection element with a central outlet opening is provided, wherein the central outlet opening is arranged in a flow direction of the annular jet downstream of and spaced apart from the flow head. A deflection device surrounds the central outlet opening. A diameter of the central outlet opening is designed such that the slim annular jet is able to pass through the central outlet opening while the widened annular jet impacts on the deflection device surrounding the central outlet opening.

Abstract: A water nozzle with a flow head is provided with at least two separate water supply devices that supply, in a controllable fashion, different water volume flows to the flow head. The flow head generates an annular jet from the different water volume flows. By controlling the water volume flows, alternatively a slim annular jet or a widened annular jet is generated by the flow head. A deflection element with a central outlet opening is provided, wherein the central outlet opening is arranged in a flow direction of the annular jet downstream of and spaced apart from the flow head. A deflection device surrounds the central outlet opening. A diameter of the central outlet opening is designed such that the slim annular jet is able to pass through the central outlet opening while the widened annular jet impacts on the deflection device surrounding the central outlet opening.

Abstract: Disclosed is a water feature nozzle comprising at least two separate water guides (1, 3) each with at least one outlet opening (13, 14), wherein controllably different water volume streams (V1,V2) can be directed to the outlet openings (13, 14) via the water guides (1, 3) in order to generate variable water patterns at a nozzle outlet (9), the water feature nozzle being designed such that an inner water guide (1) is surrounded by at least one outer water guide (3), and both water guides (1, 3) direct parallel-orientated water streams (V1,V2) as far as the nozzle outlet (9). One of the water guides (1, 3) has an adjustable flow deflector (10, 11) on the nozzle outlet (9), which flow deflector (10, 11) annularly encloses the inner water jet.

Abstract: Disclosed is a water feature nozzle comprising at least two separate water guides (1, 3) each with at least one outlet opening (13, 14), wherein controllably different water volume streams (V1,V2) can be directed to the outlet openings (13, 14) via the water guides (1, 3) in order to generate variable water patterns at a nozzle outlet (9), the water feature nozzle being designed such that an inner water guide (1) is surrounded by at least one outer water guide (3), and both water guides (1, 3) direct parallel-orientated water streams (V1,V2) as far as the nozzle outlet (9). One of the water guides (1, 3) has an adjustable flow deflector (10, 11) on the nozzle outlet (9), which flow deflector (10, 11) annularly encloses the inner water jet.

Abstract: A nozzle arrangement for generating a water jet has a nozzle plate having a nozzle opening. In order for the nozzle arrangement to be able to generate a water jet that provides improved utilization as a light guide also in bodies of water with wave motion and that is constructively simple and producible in an inexpensive way, it has a nozzle sleeve that surrounds the nozzle opening at least partially and is arranged on the nozzle plate and is provided with an inner sleeve wall surface that surrounds a water jet exiting from the nozzle opening at a safety spacing. The safety spacing prevents unwanted contact with the water jet.

Abstract: A lighting unit for water fountains, ponds and the like, has a housing that is sealed at least relative to splashing water. A light source is arranged in the housing. A lens is arranged in the housing for alignment of light emitted by the light source. An additional lens unit is arranged in a light path of the light emitted by the light source for providing an additional alignment of the light emitted by the light source. A closure cap secures the additional lens unit by a self-centering action on the housing. The closure cap has an inner guide providing the self-centering action.

Abstract: A liquid aspirator, in particular for liquids containing solids such as sludge, has a receptacle into which liquid can be sucked in by an aspirator motor through a vacuum connector and from which the liquid can drain through a drainage. The receptacle has at least two separate receiving chambers and a control that controls that the receiving chambers are filled alternatingly with liquid while the receiving chambers that are not being filled are drained. The receiving chambers are sealable relative to the vacuum side of the aspirator motor by main valves that are preferably mechanically connected.

Abstract: A nozzle arrangement for generating a water jet has a nozzle plate having a nozzle opening. In order for the nozzle arrangement to be able to generate a water jet that provides improved utilization as a light guide also in bodies of water with wave motion and that is constructively simple and producible in an inexpensive way, it has a nozzle sleeve that surrounds the nozzle opening at least partially and is arranged on the nozzle plate and is provided with an inner sleeve wall surface that surrounds a water jet exiting from the nozzle opening at a safety spacing. The safety spacing prevents unwanted contact with the water jet.

Abstract: A lighting unit for water fountains, ponds and the like, has a housing that is sealed at least relative to splashing water. A light source is arranged in the housing. A lens is arranged in the housing for alignment of light emitted by the light source. An additional lens unit is arranged in a light path of the light emitted by the light source for providing an additional alignment of the light emitted by the light source. A closure cap secures the additional lens unit by a self-centering action on the housing. The closure cap has an inner guide providing the self-centering action.

Abstract: A liquid aspirator, in particular for liquids containing solids such as sludge, has a receptacle into which liquid can be sucked in by an aspirator motor through a vacuum connector and from which the liquid can drain through a drainage. The receptacle has at least two separate receiving chambers and a control that controls that the receiving chambers are filled alternatingly with liquid while the receiving chambers that are not being filled are drained. The receiving chambers are sealable relative to the vacuum side of the aspirator motor by main valves that are preferably mechanically connected.