An atomizer for applying a coating includes a nozzle plate, an actuator, and an acoustic focusing device. The nozzle plate defines at least one aperture. The actuator is configured to oscillate to form pressure waves within a fluid to eject the fluid from the nozzle plate. The acoustic focusing device focuses the pressure waves toward the apertures.

A water jet device for recreational purposes, in particular a fountain, having: a jet head with at least one water infeed opening and at least one set of water outlet nozzles, the nozzles being arranged in a same plane and on a peripheral line of the jet head, the nozzles including respective outlets oriented towards the outside of the jet head, a water flow regulator supplying the nozzles to produce a water velocity defining a water jet, exiting each nozzle, having a selected substantially parabolic-shaped path, the water jets exiting the nozzles forming at least one dome portion, and at least one water supply column made of a rigid material and including an inlet connected to a water infeed and a water outlet connected to the opening of the jet head and mechanically integral thereto, the supply column having the selected parabolic shape to blend with the dome portion.

A water jet device for recreational purposes, in particular a fountain, having: a jet head with at least one water infeed opening and at least one set of water outlet nozzles, the nozzles being arranged in a same plane and on a peripheral line of the jet head, the nozzles including respective outlets oriented towards the outside of the jet head, a water flow regulator supplying the nozzles to produce a water velocity defining a water jet, exiting each nozzle, having a selected substantially parabolic-shaped path, the water jets exiting the nozzles forming at least one dome portion, and at least one water supply column made of a rigid material and including an inlet connected to a water infeed and a water outlet connected to the opening of the jet head and mechanically integral thereto, the supply column having the selected parabolic shape to blend with the dome portion.

A water jet kit for recreational purposes, including: a water collection tank having a trough in an upper portion including at least a first opening in communication with a lower tank to collect water flowing into the trough, a water outlet tank above the collection tank, including water outlet nozzles and at least one opening in a lower face of the outlet tank, oriented towards the collection tank, water exiting the nozzles forming a curtain of water, a supply column for the outlet tank, of rigid and translucent material, having a first end fitting into a second opening of the collection tank and a second end fitting into the opening of the outlet tank, the supply column enabling the outlet tank to be held above the collection tank, a pump for sucking water collected in the tank and injecting it into the supply column to replenish the outlet tank.

A water jet kit for recreational purposes, including: a water collection tank having a trough in an upper portion including at least a first opening in communication with a lower tank to collect water flowing into the trough, a water outlet tank above the collection tank, including water outlet nozzles and at least one opening in a lower face of the outlet tank, oriented towards the collection tank, water exiting the nozzles forming a curtain of water, a supply column for the outlet tank, of rigid and translucent material, having a first end fitting into a second opening of the collection tank and a second end fitting into the opening of the outlet tank, the supply column enabling the outlet tank to be held above the collection tank, a pump for sucking water collected in the tank and injecting it into the supply column to replenish the outlet tank.

A nozzle for an atomizer includes a plate, a piezoelectric actuator, a body, and a connector. The plate defines an aperture. The actuator is configured to oscillate the plate. The body supports the plate. The connector is configured to reversibly mount the body to the atomizer in a first orientation and in a second orientation. In the first orientation, fluid exits the nozzle along a first axial direction through the aperture. In the second orientation, fluid exits the nozzle along an opposite axial direction through the aperture.

A nozzle for an atomizer includes a plate, a piezoelectric actuator, a body, and a connector. The plate defines an aperture. The actuator is configured to oscillate the plate. The body supports the plate. The connector is configured to reversibly mount the body to the atomizer in a first orientation and in a second orientation. In the first orientation, fluid exits the nozzle along a first axial direction through the aperture. In the second orientation, fluid exits the nozzle along an opposite axial direction through the aperture.

A programmable, electronically controlled sprinkler system has a hermetically sealed internal chamber which encloses all of the internal water flow, valves, mechanical and rotational components. A plurality of magnetic coupling arrangements allows external motors to control operation of the internal mechanical components without requiring any hydraulic seals.

A fluid sprayer includes a battery supported by a stand of the sprayer and that is configured to provide electric power to a motor of the sprayer to cause pumping by a pump of the sprayer. The battery is mounted vertically below the sprayer body. The battery is bracketed by vertical portions of the stand.