The present invention provides an attachment for emitting water from an elevated water source. The attachment comprises an inlet section, a transitional section connected to the inlet section an outlet section connected to the transitional section opposite from the inlet section, and a rib member attached to the outlet section to support the shape of the outlet section.

Various embodiments of modular dual vector fluid spray nozzles are disclosed. Embodiments of the nozzles are characterized by specially shaped fluid channels, impingement surfaces and exit orifices used to generate atomized mists of fluid under pressure. Embodiments of the nozzles are generally characterized by composite fluid spray density patterns having horizontal and vertical components, i.e., dual vector in nature. The nozzles disclosed are modular and may be easily installed or removed from a given fluid spray system, nozzle head, or fixture as dictated by any given application.

Provided is a spray nozzle configured so that the angle of spray does not change even if the flow rate of liquid is adjusted largely. A circular conical primary hole narrowing toward the discharge-side front end is provided in a communicating manner at the discharge-side center of a primary flow passage extending along the center axis of a nozzle body, and a pair of secondary holes is provided on both sides of the primary hole in the width direction so as to communicate with the primary flow passage and the primary hole. The secondary holes are formed in an elongated shape, and portions of the long sides of the secondary holes on both sides, the portions facing each other across the primary hole, and both side portions of the primary hole are connected.

The present invention is directed to a device and methods for efficient application of liquid treatment substances to oil palm fruit.

A method minimizes emissions while spraying a mixture of a resin composition and a polyisocyanate onto a surface. The resin composition has a hydroxyl content of at least 400 mg KOH/g and includes a blowing agent that is a liquid under pressure, a first polyol, at least one additional polyol other than the first polyol, and optionally a catalyst, surfactant, and water. The mixture is sprayed onto the surface to form a polyurethane foam having a closed cell content of at least 90 percent. The mixture is also sprayed through a spray nozzle at a spray angle corresponding to a control spray angle of from 15 to 125 degrees measured at a pressure of from 10 to 40 psi using water as a standard. The step of spraying produces less than 50 parts of the polyisocyanate per one billion parts of air according to OSHA Method 47.

A polyurethane spraying system minimizes emissions of a polyisocyanate while spraying a mixture of a polyisocyanate and a resin composition onto a surface. The system includes a first reactant supply tank including the resin composition. The system also includes a second reactant supply tank including the polyisocyanate. The system further includes a non-gaseous pump that is coupled with the first and second reactant supply tanks, a mixing apparatus that is coupled with the first and second reactant supply tanks for mixing the resin composition and the polyisocyanate prior to spraying, and a particular spray nozzle that is coupled with the mixing apparatus. The polyurethane spraying system produces less than 50 parts of the polyisocyanate per one billion parts of air according to the NIOSH 5521 Impingement Method while spraying the mixture onto the surface.

Nozzle orifice shapes and configurations associated with regulating and directing a flowing body of water over a water attraction riding surface for performing board-riding maneuvers is described. The nozzle orifice shapes and configurations according to the present invention includes shapes and configurations allowing for a flow of water over a ride surface which may include complex shapes which do not lend themselves to use with existing nozzle technologies. The present invention also includes nozzle arrays which may be made up of two or more nozzles arranged substantially adjacent or within close proximity to one another to create beneficial flow characteristics for performing board riding maneuvers on a complexly shaped riding surface.

Nozzle assemblies adapted to produce an oscillatory spray pattern. A rotor member having at least one lobe engaged with one or more cavities of a stator surface for defining an oscillatory movement of the rotor member in response to a motive fluid along the rotor member and stator surface. The nozzle assembly directing the motive fluid along one or more tapered surfaces, such as complementary tapered surfaces of the rotor and stator surface. The rotor member is operatively coupled with the spray member for oscillatory movement therewith. The spray member adapted to receive the motive fluid and emit the fluid as a spray from the nozzle assembly. The spray having an oscillatory pattern that matches the oscillatory movement of the rotor.

A filter for a high-pressure nozzle having a tubular section and a cap section. The cap section and/or the tubular section are provided with a plurality of filter slots which extend in the longitudinal direction of the tubular section and each have a first end situated on the side of the tubular section and a second end situated on the side of the cap section. A sleeve is arranged coaxially with the tubular section and covers the filter slots in the region of the first end of the filter slots.

Even a fluid having a medium or high viscosity can be uniformly applied to a relatively small target object without scattering, and can be applied separately (selectively applied). A top portion having a hemispherical, pyramidal, or truncated pyramid shape and protruding in a liquid discharge direction is provided at a distal end portion of a tubular nozzle, and a slit is formed in the top portion. A turbulent flow forming member is disposed in a tubular portion of the nozzle. In the turbulent flow forming member, one main channel to which a liquid is supplied and two branch channels branching from the main channel are formed. The liquid flowing out from the two branch channels forms a turbulent flow in a space of the tubular portion and the top portion at the nozzle distal end, and is discharged as a liquid film having a width from the slit at a substantially uniform pressure. The liquid film is applied to a target object at a position before the liquid film is atomized.