Abstract: A water-saving shower head of the aerating type providing water in air-borne atomized form in a normal, continuously expanding pattern substantially homogeneous in cross-section as to water concentration or "wetness" with means for adjusting the rate of flare of the pattern to increase the concentration of water or "wetness" for rinsing purposes, especially for better removal of shampoo from the hair. The adjustment is accomplished by manually adjusting the position of the transverse orificed nozzle plate along the axis of the outlet passageway of the shower head, the longer the passageway, within limits, the more concentrated the shower pattern.

Abstract: A convertible sprinkler which can be used as a ground sprinkler or as a hand sprinkler. The sprinkler has a pair of feet in the form of paddles hingedly connected to the sprinkler head in a dihedral relationship. When folded together, these feet form a handle. When they are unfolded, they provide a stable base for using the sprinkler as a ground sprinkler.

Abstract: A rotary spray arm structure for a dishwasher or the like rotatable about an axis of rotation, the spray arm structure having an entrance passage coinciding with the axis of rotation for receiving a pressurized column of liquid, the entrance passage opening to a hollow interior of the spray arm, and a plurality of nozzles spaced along each hollow arm of the spray arm means with each nozzle having an entrance end at the hollow interior and an exit end for discharging the liquid, the hollow interior in each arm constricting from adjacent the axis of rotation to adjacent the outer end of each arm and liquid supply ramp means leading from the hollow interior of each arm to the inner entrance end of each nozzle with each ramp comprising a groove angled outwardly toward its nozzle.

Abstract: A fuel injection nozzle includes a valve member biased by resilient means into contact with a seating to prevent fuel flow through an outlet from an inlet, the valve member being responsive to the pressure at the inlet and opening to allow fuel flow when the pressure attains a predetermined value. A piston member defines a surface against which fuel under pressure in a chamber can act to assist the action of the resilient means. The fuel under pressure in the chamber is obtained from the fuel inlet and is controlled by a valve element slidable within a bore in the piston member. One end of the bore is open to the chamber and the other end to a drain. The element is biased by a spring towards the one end of the bore so that its position in the bore depends upon the pressure in the chamber. The valve element and wall of the bore define groove and a port which form part of a passage means connecting the inlet and the chamber.

Abstract: An adjustable pendent sprinkler assembly has a thermally activated sprinkler head with a releasable cap and a tube spaced above the sprinkler head for securing the assembly to a sprinkler system tee. A plug is slidably mounted in the upper end of the tube where it is retained against downward movement by a release mechanism. An outer sleeve is threaded to the tube and fixedly secured to the sprinkler head for raising and lowering the sprinkler head. An inner sleeve is mounted in the tube for axial movement only and is spaced above the sprinkler head with its upper end holding the release mechanism against release. An intermediate sleeve is threaded to the inner sleeve and has its lower end supported end by the releasable cap of the sprinkler head to releasably support the assembled inner and intermediate sleeves which have inner diameters greater than the outer diameter of the plug to provide for passage of the plug therethrough on its release.

Abstract: To provide for coupling the injection needle of a Diesel injection valve with an inertia mass, and thereby provide for speed damping of the movement of the valve, the pressurized Diesel fuel is applied to a chamber (20,68) in the valve body (10,12,14), which slidably retains the needle valve element (18) at a location downstream of the inertia mass, the inertia mass subdividing the chamber into a spring or pressure chamber (20) and a damping chamber (68) forming a dead, or storage chamber for fuel, the inertia mass being slidable in the second chamber and the clearance between the inertia mass and the walls of the chamber forming a throttled connection duct so that, upon command to opening movement, the needle valve element will engage, after a short dead distance (v), the inertia mass (62) which must move against the flow resistance through the throttled connection upon shifting of fuel between the first and second chamber and thus damping the speed of operation of the valve element.

Abstract: A fluid delivery valve extender has a telescopable rod comprising at least two telescoping sections and having a first end and a relatively movable second end. An adapter is connected to the first end of the rod and includes a fluid passage having an inlet and an outlet. The adapter is releasably connectable to a fluid delivery valve outlet to put the inlet of the fluid passage in fluid communication with the valve outlet. A normally contracted, elastically deformable, coiled hose is disposed coaxially and loosely around the rod and has one end connected to the outlet of the fluid passage in fluid communication therewith the other end of the hose is connected to said second end of the rod for movement therewith and a discharge nozzle is connected in fluid communication with the hose to effect discharge of fluid passing through the hose. The fluid discharge nozzle is disposable at desired distances from the delivery valve by the extension of the rod and the expansion of the coiled hose.

Abstract: A laminar microjet atomizer and method of aerial spraying involve the use of a streamlined body having a slot in the trailing edge thereof to afford a quiescent zone within the wing and into which liquid for spraying is introduced. The liquid flows from a source through a small diameter orifice having a discharge end disposed in the quiet zone well upstream of the trailing edge. The liquid released into the quiet zone in the slot forms drops characteristic of laminar flow. Those drops then flow from the slot at the trailing edge of the streamlined body and discharge into the slipstream for free distribution.

Abstract: In a center pivot irrigation system, an apparatus for controlling the spray pattern delivered by an end gun having at least one adjustable stop by varying end gun travel along an end gun delivery path. A sensing means detects changes in wind condition and produces a signal corresponding thereto. The signal thus produced operates an end gun controlling means which is adapted to adjust the end gun stop and vary the path of end gun travel. By this means, end gun spray pattern is maintained as a function of current wind condition.

Abstract: An electromagnetic unit fuel injector includes a pump assembly having an externally actuated plunger reciprocable in a bushing means to define a variable volume pump chamber and a pressure actuated fuel injection nozzle. Fuel, at a suitable supply pressure, in a supply chamber is adapted to be in flow communication with the pump chamber by suitable passage means having a normally open, electromagnetic valve means controlling flow through a first portion thereof and a normally open servo control valve means, including a servo control valve and piston, controlling flow through a second portion thereof. Fuel injection during a pump stroke of the plunger is initiated by the controlled energization of the electromagnetic valve means to block return flow of fuel so as to effect closure of the servo control valve means whereby the fuel pressure can be further intensified to effect operation of the injection nozzle.

Abstract: Diffusion apparatus for gated irrigation pipes including a gate retainer slidingly engaging the pipe to selectively control water dispensed therefrom, and a water diffuser which removeably connects directly to the gate retainer and is moveable therewith. The diffuser includes a framework which may be water porous and a water porous covering of fine meshed screen or bristles for diffusion of the water. The covering and framework together form a channeled or trough-like diffuser. The diffuser is provided with a pin which engages a receiving slot on the gate retainer to hold the diffuser in place. Use of the apparatus prevents soil erosion and unwanted furrowing of the soil at the outlets of gated irrigation pipes.

Abstract: This invention relates to an improved sprayer means wherein the improvement comprises(a) a pressurized water feed, having a minimum pressure valve unit and leading to the mixing chamber of the nozzle spray head, which water feed is fed first to a water motor provided with a drive piston driven by the pressure of the inflowing water and then to a double-action metering pump having a metering piston coupled with said drive piston of the water motor, the cross-sectional area of the metering piston and the cross-sectional area of the drive piston being in a predetermined ratio;(b) a flexible container for chemicals residing in a detachable rigid vessel connected to a metering outlet line of the metering pump, said flexible container being connected by the mixing chamber of the nozzle spray head by a container outlet valve and a container line, the chemicals being displaced from the flexible container by water metered through the metering outlet line into the vessel; and(c) a feedback line leading from the cylinde

Abstract: A device for aerating a jet of water, particularly for the delivery spout of a hydraulic apparatus, with a mixing chamber, an air intake, a delivery orifice provided with nets for regularization of the jet, and a pulverization device comprising a first and a second element having each at least a ring series of openings of relatively large size, these two elements, when in the position of finer pulverization, being superimposed in such a way that the openings of the two elements register with each other along small portions adjacent to the edges, thus forming a plurality of restricted passages. Perferably, the opposite edges of each opening of one element form two narrow passages with the adjacent edges of two subsequent openings of the other element, thus producing slanting jets which meet the one another and thereby pulverize. The second element may be displaced, interchanged or omitted in order to obtain different working conditions.

Abstract: A fluid injector, for example for injecting liquid fuel into a combustion chamber, comprises a valve housing and an injector assembly which may be removably mounted on the valve housing. The injector assembly includes discharging means for discharging fluid from the injector assembly, ducting for conveying the fluid between the valve housing and the discharging means and a control valve movable to a first position in response to flow of the fluid in a first direction through the ducting to close the discharging means and return the fluid from the discharging means to the valve housing and movable to a second position in response to flow of the fluid in a second direction through the ducting to open the discharging means to allow at least some of the fluid conveyed to the discharging means to be discharged therefrom and to return any surplus fluid to the valve housing. Provided in the valve housing are inlet and outlet passages for conveying the fluid into and from the valve housing, and a change-over valve.

Abstract: An electromagnetic fuel injection valve and a process for the adjustment of the armature stroke (H) of the fuel injection valve is proposed, which serves to inject fuel under low pressure into the suction pipe of an internal combustion engine. The fuel injection valve surrounds an armature guided in a valve housing. This armature is tightly fastened to a movable valve section which cooperates with a fixed valve seat in a nozzle body supported in a nozzle carrier. The armature stroke can be adjusted in an assembled condition of the fuel injection valve by moving the nozzle body in an axial direction. For this the stroke (H.sub.eff) is measured by an odometrical system (distance sensing system), in the assembled condition of the fuel injection valve while the electromagnetic system is excited and the fixed valve seat provided on the nozzle body is displaced with the aid of a pressing tool by the difference between the measured stroke (H.sub.eff) and the desired armature stroke (H).

Abstract: A spray tip for an aerosol can has two pairs of flexible and resilient wings which extend outwardly from opposite sides of a spraying orifice in the tip. The wings cooperate with inclined surfaces in the bottom wall of a can holder in a spraying apparatus to orient the spray tip so that the spraying orifice is properly aligned with respect to the direction in which the spraying apparatus is moved. The wings can also cooperate with a sliding actuating bar which will engage the wings and align the spray tip.

Abstract: A hand-held spray gun comprises a pistol grip handle and a trigger that can be squeezed toward the pistol grip for actuating a poppet valve in the spray gun body to discharge fluid through a nozzle in the end of the spray gun. The poppet valve extends axially through a supply chamber which receives fluid passing to it through the interior of the pistol grip which, in turn, is connected to the source of the fluid, such as a liquid or gas. The supply chamber is sealed from a larger dispensing chamber through a seal carried on the poppet valve. The dispensing chamber communicates with long, narrow discharge passages in the nozzle end of the spray gun. The end of the poppet valve is enlarged to form a valve guide that slides back and forth in a valve guide cavity in the nozzle. A return spring in the cavity is biased against the face of the valve guide. The valve guide is sealed to the cavity to isolate the return spring from the fluid in the dispensing chamber.

Abstract: The gun comprises a body having a downwardly extending grip (2) and an assembly comprising a heating block (4) having a vertical axis, a first envelope (5) defining with the block a sinuous path for heating air, and a second envelope (6) defining a path for paint. The second envelope (6) is in the shape of a bell and is pivotally mounted on top of and around the first envelope (5). The first envelope (5) and second envelope (6) define therebetween a chamber (45) which communicates with the paint path and has an outlet conduit (46) which extends through the heating block (4) and communicates with a rotary spraying head (T) mounted on the front end of the body (1). A vertical hot air passageway (28) coaxially surrounds the outlet conduit (46) and communicates with the sinuous path for heating air and also communicates with the spraying head. The second envelope (6) has a lateral boss (39) defining a passage which communicates with the path for the paint.

Abstract: An elongated member is provided in the discharge orifice of a spray head nozzle so that the fluid being sprayed is discharged as a hollow stream resulting inter alia in a better and more complete atomization of the fluid in coaction with a low pressure propellant.

Abstract: An electromagnetic unit fuel injector for use in a diesel engine includes a housing with a pump therein defined by an externally actuated plunger reciprocable in a bushing and defining therewith a pump chamber open at one end for the discharge of fuel to a spring biased, pressure actuated fuel injection nozzle. The pump chamber is also connected to a first chamber via a solenoid actuated, normally open, hollow, ported valve controlled passage to permit the ingress and egress of fuel. The first chamber adjacent to one end of the valve is in flow communication with a second chamber at the opposite end of the valve and these chambers are connected to a drain passage and supply passage, respectively. During a pump stroke, the solenoid can be energized to move the valve in position to block flow from the pump chamber to the first chamber so as to allow the pressurization of fuel by the pump to effect discharge of fuel from the injection nozzle.