Abstract: A nozzle for a rotary water delivery system comprising at least a pair of nozzle orifices of similar size spaced apart on a face of the nozzle and having a nozzle orifice size to nozzle orifice spacing distance ratio of about 1:2 to about 1: 10, said ratio being sufficient to produce separate nozzle streams which emerge from the nozzle face as separate streams which may join together or commingle only at a distance from said face which does not appreciably increase an overall velocity of a resultant stream or commingled stream or individual streams so that the gallonage per minute delivered by the nozzle can be increased incrementally in multiples without appreciably increasing the distance thrown by the resultant water stream.

Abstract: A high pressure fuel injector has a swirl generator with a metering disk upstream of the valve seat. The disks function to redirect the axially flowing fuel through the injector into a tangential fuel flow. As the fuel moves past the needle valve and the valve seat, the narrow cross section imparts a higher velocity to the fuel to atomize the fuel. As the fuel leaves the swirl generator and is ejected from the injector, the fuel forms a hollow conical sheet containing atomized fuel.

Abstract: A sprinkler includes a housing having a water inlet and a water outlet. A plug is slidably secured in the housing and may be moved toward and away from the water outlet for adjusting outlet water quantity. A block is rotatably supported in the housing and has a helical groove for engaging with the plug and for moving the plug forward and rearward relative to the water outlet. The water outlet quantity may thus be adjusted for allowing much water to sprinkle the farther area and for allowing less water to sprinkle the closer area to the sprinkler.

Abstract: A water spray gun having an improved sprinkler head structure for use on a garden hose. The sprinkler head has a head body and a sprinkling cap and a bottom plate that are joined together by way of ultrasonic welding art. The sprinkling cap is rotatably mounted onto the head body having a water outlet. The sprinkling cap has a peripherally ring area having a plurality of sprinkling pores and a number of water discharge holes of various geometric shapes. Each water discharge hole of the sprinkling cap has a tubular extension and the tubular extensions are bridged by vertical wall sections and an S-shaped wall section to define a closed area. The bottom plate has a plurality of circular holes ending with protruded flanges that defines a closed area in correspondence to that of the sprinkling cap.

Abstract: A fuel injector includes an injector body with a plunger bore, a nozzle chamber, and a nozzle outlet that opens to the nozzle chamber. A plunger is positioned to reciprocate in the plunger bore between an advanced position and a retracted position. A portion of the plunger and a portion of the plunger bore define a fuel pressurization chamber. At least one of the injector body and the plunger define a main passage extending between the fuel pressurization chamber and the nozzle chamber. At least one of the injector body and the plunger define a restricted passage extending between the fuel pressurization chamber and the nozzle chamber. The restricted passage restricts flow of fuel to the nozzle chamber over the beginning portion of each injection event. The main passage is substantially closed over a portion of the plunger's movement between its retracted position and its advanced position.

Abstract: A hydraulically actuated fuel injector includes an injector body defining an actuation fluid chamber that opens to an actuation fluid drain, an actuation fluid inlet and a piston bore, and further defining a nozzle chamber that opens to a plunger bore and a nozzle outlet. A control valve, positioned in the injector body, has a first position that opens the actuation fluid inlet and closes the actuation fluid drain, and a second position that closes the actuation fluid inlet and opens the actuation fluid drain. A piston, positioned in the piston bore. A plunger, positioned in the plunger bore, is moveable between an upper position and a lower position. A needle valve member, positioned in the nozzle chamber, is moveable between an open position in which the nozzle outlet is open and a closed position in which the nozzle outlet is blocked. A portion of the plunger bore and the plunger define a fuel pressurization chamber that opens to the nozzle chamber.

Abstract: A cap is disposed internally of a spray nozzle and effects active atomization of pressurized liquid flowing through the nozzle by mixing with compressed air and creating turbulence in the liquid during the flow. The nozzle includes an internal cap which cap which imparts significant turbulence on the flow through the nozzle serving to help atomize the liquid using a reduced amount of air energy. Different caps may be used to create various selected spray patterns.

Abstract: A sphere with undulations, serving as vanes, is pivotally mounted on a stand which has means for clipping the stand to an air vent in an automobile. The sphere has molded therein a fragrance which will be time released when exposed to heat or air currents.

Abstract: A showerhead comprises a shell having an outlet end and a selector housing having an inlet end fixedly mounted to the outlet end of the shell. The showerhead also has a selector disk removably and rotatably mounted inside the selector housing near the inlet end of the selector housing. The disk selector has an inlet end facing the inlet end of the selector housing, and an outlet end opposite the inlet end of the disk selector. The showerhead further includes a selector face mounted inside the selector housing. The selector face has an inlet end abutting the outlet end of the selector disk, and an outlet end opposite the inlet end of the selector face. The showerhead also has a diffuser plate mounted inside the selector housing. The diffuser plate has an inlet end abutting the outlet end of the selector face, and an outlet end opposite the inlet end of the diffuser plate.

Abstract: A trampoline water spray device having a tubing which can be attached to a trampoline, the tubing being perforated with a plurality of holes, and where the tubing can be connected to a source of pressurized water and the pressurized water can flow from the plurality of holes to create a plurality of sprays around the circumference of the trampoline.

Abstract: When an internal combustion engine is hot, especially in hot starting or during hot idling, outgassing of fuel occurs upstream of the injection port disk and at the injection ports; as a result, because too little fuel is supplied, the running performance is undesirably impaired. The running performance of the engine is therefore intended to be improved by preventing the development of vapor bubbles. By the provision of a transfer element, in the form of a raised body shoulder formed on the valve seat body, that reduces the heat transfer between the valve seat body and the injection port disk, it is accomplished that the injection port disk cools down as a result of the extracted heat of evaporation of the injected fuel, and thus the danger of vapor bubble development at the injection ports or upstream is reduced. The fuel injection valve is especially suitable for fuel injection systems in mixture-compressing internal combustion engines with externally supplied ignition.

Abstract: This invention relates to a device for forming a mist or fog having a convex surface which receives and expands a fluid delivered thereto. The convex surface of the device has a number of circular protrusions spaced peripherally thereon, separated by a number of slots having holes therein. The holes communicate with an inner cylindrical chamber. Suction is produced through the holes when the fluid stream passes over them, to automatically add a further fluid to the fluid being expanded by the device. A cylindrical sleeve surrounds and protects the device. The device is supported in the cylindrical sleeve, either in front of a nozzle by an annular structure, or by a bent tube held in the cylindrical sleeve in front of the device, or in a venturi.

Abstract: An automatic temperature controlled shower head assembly includes a housing having an inlet port and a plurality of outlet ports to permit water to flow therethrough; a valve device operatively associated with the input port controls the volume of water flowing through the assembly depending upon the position of a temperature responsive drive mechanism mounted within the housing in operative relationship to the valve device. The drive mechanism detects temperature changes of the flowing water and acts in response to these temperature changes, within a predetermined range, wherein the valve device is moved to automatically vary the volume of water flowing from the outlet ports depending upon the temperature of the water.

Abstract: A two-stage liquid spray device having an outlet region with an island and an exit aperture and a fluidic oscillator, driving said outlet region. The improvement for the spray device is operable at low pressure to achieve full-area coverage with substantially uniform droplets and wherein all of the spray droplets land on the desired work surface and do not bounce. The fluidic oscillator includes an oscillation chamber, a power nozzle for introducing a jet of liquid from a source into the oscillation chamber. The oscillation chamber is configured to produce a pair of alternating control vortices which substantially preclude wall attachment of said jet traversing said oscillation chamber thus avoiding a heavy endedness in the oscillatory jet. An outlet from the oscillation chamber to the outlet region, whereby the jet rhythmically sweeps in end pulses to each side of the island and form a sheet at the exit aperture. The sheet is rhythmically waved or swept in the ambient air to form the uniform droplets.

Abstract: A flexible coating material conduit conducts a flow of electrostatically charged coating material to a spray gun. The flexible conduit includes a first or inner layer which is electrically insulating and chemically nonreactive with the electrostatically charged coating material. A second layer of synthetic rubber is electrically insulating. The second layer has a Shore A hardness of 75 or less and a thickness which is at least 0.200 times an overall radial extent of the conduit. A third layer of synthetic rubber extends around the second layer and is electrically conductive. A fourth layer of polymeric material extends around the third layer and is abrasion resistant and electrically insulating. The third layer is connected with ground. The source of electrostatically charged coating material includes a voltage block which electrically isolates the electrostatically charged coating material from a source of coating material which is not electrostatically charged.

Abstract: A nozzle body and coupler bearing assembly for discharging a liquid material. The nozzle body consists of approximately thirty-two serially and concentrically arranged ports which receives liquid from an attached hose under high pressures. The various points of placement of the ports, combined with the rotation produce a balanced and stabilized effect on the rotating nozzle assembly which allows the nozzle assembly to be delivered to a target area, and while in operation, have the ability to be left unattended by fire-fighting personnel. The wild and natural whipping action exhibited from a fire hose under high operating pressures is nullified with the present nozzle. The body of the nozzle is a hollow paraboloid attached to a coupler bearing assembly. The nozzle body is made from a resilient and durable material with concavo-convex surfaces with a plurality of ports emitting liquid in a radial "Dandelion puff" pattern.

Abstract: A recirculating paint supply system supplies single or multiple paint coatings to paint spray stations arranged in parallel or series relation, each station including manually operated flexible monoline and coaxial conduits to supply paint to an improved spray gun. In one aspect of the invention, the improved spray gun is comprised of a polymeric material to reduce the overall weight of the spray gun thereby reducing operating fatigue and ailments caused by the use of conventional spray guns. In another aspect, the improved spray gun includes larger air passages which provides for a greater volume of air to pass through the spray gun, thereby providing increased atomization of the liquid coating composition. Thus, the reduced weight, as well as the increased atomization, increases the overall finish quality of the object being painted.

Abstract: A spray gun for applying a liquid spray coating, such as paint, to a surface incorporates a light source system for gauging the position of the spray gun relative to a worksurface in order to optimize application of the coating to the surface. The light source is preferably in the form of a laser which emits a pair of light beams toward the worksurface. The pair of light beams converge toward each other in a direction toward the surface, and the position of the beams on the surface is used by the operator to judge the distance of the spray gun from the surface. An adjustment mechanism is interconnected with one of the light beam sources, so as to adjust the point of convergence of the light beams. A closable door is associated with the spray gun housing at one of the light beam emitting locations, to selectively prevent emission of one of the light beams from the spray gun, such that a single light beam is emitted from the spray gun for use as a reference for spot application of the coating to the surface.

Abstract: A spray nozzle is disclosed including a valve body with a water inlet and outlet and a helical spray vane at the valve body outlet. A tapered plug carried by the valve stem, corresponding in shape to that of the interior of the helical spray vane, moves with the valve stem to decrease the area of the outlet and thereby reduce the discharge flow rate into the helical spray vane. At the same time, the tapered plug moves into the interior of the helical spray vane, causing a reduction in size of a passage formed between the tapered plug and the interior of the helical spray vane. This reduced passage size serves to maintain the velocity of the fluid as it is directed to the active surface of the helical spray vane, thereby substantially maintaining the size of particles produced by the helical spray vane.

Abstract: A pintle nozzle, preferably an unthrottled pintle nozzle, is provided in which a negative interference angle is formed between the conical tip of the nozzle needle and the mating conical valve seat so that the needle seat is located at the bottom of the valve seat rather than at the top. The resulting nozzle lacks any velocity drop downstream of the needle seat, even at very low needle lifts, so that virtually all of the energy used to pressurize the fuel is converted to kinetic energy. Spray dispersion and penetration at low needle lifts therefore are significantly enhanced. Fuel flow through the converging-diameter discharge passage located between the conical needle tip and conical needle seat also self-centers the nozzle needle at low lifts, thereby helping to assure a symmetric spray and to further enhance spray characteristics.