Abstract: A fuel injection valve which serves to inject fuel into the intake tube of internal combustion engines. The fuel injection valve includes a valve housing, in which a nozzle body having a valve seat is firmly held. Downstream of the valve seat, the fuel is directed via metering fuel guide bores to a preparation bore, which is continued in the form of a preparation bore in an injection sheath. The injection sheath is held on the nozzle body by means of an adapter body surrounding and engaging the nozzle body, and it has an ejection segment within which the inside diameter of the preparation bore decreases in the flow direction toward the ejection end. Teeth are also provided on the ejection segment, pointing toward the ejection end.

Abstract: An electromagnetically actuatable valve which serves as a fuel injection valve for fuel injection systems in internal combustion engines. The valve includes a valve housing as well as a magnetic coil with poles serving as the core, with which an armature cooperates, which is connected to a valve element the sealing element of which cooperates with a valve seat in a valve seat body. The valve element protrudes without contact through a throttle bore in the valve seat body with a throttling element and is held in a sealing manner on the valve seat by the armature when the magnetic coil is excited. When the magnetic coil is not excited, the valve element is moved by the pressure forces of the fluid in the opening direction of the valve and is centered by the fluid flow.

Abstract: A linear irrigation system has the wheels on each end angled outward to stretch the entire pipe. Some of the vehicles in the middle of the pipe are steered responsive to the distance the elongated pipe is from a guide line. Steering is controlled by the movement of a cable. Bridges upon a tube on the cable are used to activate a microswitch. The microswitch itself is on a carriage which is responsive to the distance of the elongated pipe from a guide line. Therefore when any correction is needed, a predetermined correction is applied and no additional correction is applied until the carriage carrying the microswitch is again moved. The wheels are individually steered. The correction is almost instantaneous and is not dependent upon changing the angle of the entire moving pipe.

Abstract: A nozzle assembly comprising a tubular sleeve, a nozzle and a nozzle body. The nozzle and nozzle body are held in an assembled relation with their bores aligned by the tubular sleeve which encircles them. The sleeve provides a seal between the nozzle assembly and the body into which the nozzzle assembly is mounted, and also provides a seal between the nozzle and nozzle body. During use, when under working pressure, the tubular sleeve tends to flow and move both downstream and radially, forming seals between the nozzle assembly and the body into which it is mounted; and between the nozzle and nozzle body, which seals tend to increase in effectiveness as the working pressure increases. In another form, the set screw has a chamfer which engages a corresponding circular corner of said body, preventing downstream flow of the sleeve therebetween.

Abstract: A fluid flow control device particularly useful as a multiple-emitter for drip irrigation comprises a housing defining an internal chamber and a freely-movable control member disposed within the chamber and unattached to the housing. The housing includes a waLl defining one side of the chamber and formed with an inlet opening and a plurality of outlet openings. All of these openings face the same side of the freely-movable control member and are located so as to be covered and uncovered by the same side of the control member as the control member moves towards and away from the wall of the housing. The device further includes an inlet tube for connecting the inlet opening to a source of pressurized fluid, and a plurality of outlet tubes, one connected to each of the outlet openings, for conducting the fluid exiting from the respective opening to the point of use of the fluid.

Abstract: An ultrasonic spray nozzle includes a piezoelectric transducer which develops mechanical vibrations in response to an applied periodic electrical potential. The vibrations are mechanically amplified and propagate to an atomizing surface over which fluid to be atomized is discharged by an internal fluid passage. Maximum vibrational amplitude of the atomizing surface is achieved when the frequency of the applied electrical potential equals the natural resonant frequency of the nozzle. A parameter of the applied electrical potential, such as frequency, is periodically varied such that the vibrational amplitude of the atomizing surface is periodically increased and decreased. Fluid atomization is reduced during periods of reduced vibrational amplitude permitting fluid to be distributed with greater uniformity onto the atomizing surface. Such uniform distribution results in a significant improvement in the definition of the spray pattern produced by the nozzle during periods of increased vibrational amplitude.

Abstract: A nozzle assembly for use with a hot-melt dispensing head having a manifold with a lengthwise passageway opening into plural, spaced-apart nozzle inserts for dispensing hot melt. The nozzles themselves are aimable over a wide range of angles and are replaceable. In one configuration the nozzle assembly has a T shape with the nozzles on a side of the T top distal to the dispenser head. In another configuration, the nozzle assembly has a Y shape with the nozzles on a side of the Y top facing the dispenser head. The two configurations may be spaced opposite each other to form a box sealing station.

Abstract: An automatic irrigation control includes a pilot needle valve with a slidable stem and a block of material the dimensions of which change when exposed to moisture, arranged in a framework so that when the block expands it bears against the valve stem, closing the valve and shutting off a connected hydraulic valve. Preferably, an override lever, connected to a temperature-responsive device, is interposed between the block and the valve in such a way that when the temperature is above a predetermined height, the lever overrides the block and prevents the actuation of the hydraulic valve when the temperature is too high. An adjustable canopy regulates the rate of drying and wetting of the block.

Abstract: A foam generation device and method of producing foam wherein an electrical charge is placed upon a foam producing solution or admixture thereof with air. The above admixture is then forced by air pressure through a grounded foam-producing mesh such that foam bubbles are produced at high efficiency. In addition, the turbulence of the air passing through the device may be reduced by a honeycomb section. This honeycomb section in turn may be grounded and the air flow through the device reversed such that already produced foam may be drawn into the device, charged by the grid, and thereafter dissipated upon the honeycomb section.

Abstract: In an intermittent type swirl injection nozzle including a nozzle body having a through hole and a spray hole, a needle valve inserted into the through hole, and a partition member of a cylindrical shape fittedly and fixedly inserted into the through hole, a gap area between the needle valve and the partition member is increased in accordance with the lift of the needle valve. For this purpose, a tapered portion and a top end face are provided on the partition member in a manner that they contact with a tapered portion and a step portion provided on the needle valve when the needle valve is in a position to close the spray hole. The resultant injection nozzle has a variable injection rate and spray angle.

Abstract: An arrangement for applying an adhesive medium, particularly for leather and shoe articles, has an adhesive medium applying nozzle and a nozzle needle member arranged to close and to open the nozzle. A driver connects one end of the nozzle needle member with a driving unit which includes at least two selectively actuatable driving devices formed with individually adjustable displacement elements so that they move the nozzle needle member selectively over different adjustable strokes.

Abstract: A spray device having a plurality of rotating nozzles directing sprays of a high pressure fluid in a circular pattern against an object being cleaned. The nozzles are mounted on the ends of supply pipes extending radially outwardly from a hub connected to a hollow crankshaft. The crankshaft is connected to a source of high pressure fluid through a supply conduit which is connected to the crankshaft by a rotary union. The rod of a double action piston is connected to the crankshaft and rotates the crankshaft and nozzles upon linear reciprocating movement of the piston rod. The piston cylinder is pivotally mounted on a valve block which has a pair of ball check valves which are actuated by a rocker bar mounted on the cylinder. A small quantity of the high pressure fluid is directed into the valve block from a manifold and is injected alternatively into the ports of the cylinder upon pivotal movement of the cylinder to reciprocate the rod and rotate the crankshaft and connected spray nozzles.

Abstract: A fire extinguishing apparatus for dispensing a dry chemical agent from a container by using a suitable supply of compressed gas such as carbon dioxide. The compressed gas is used to fluidize the chemical agent and carry the agent to a hand manipulated nozzle which is aimed at the fire. The extinguishing apparatus is actuated by removing a safety pin from the actuating lever, depressing the lever depresses a plunger valve that opens a passage from the container to the nozzle outlet and simultaneously transfers a linear motion to a tubular spool through a connecting lever. The tubular spool punctures a seal on a compressed gas cartridge releasing the gas into the container aerating the dry chemical and transporting it through the open plunger valve and out the nozzle.

Abstract: A fuel-injection device in which a nozzle element is directly pressed towards the front face of a guide body for the pump plunger. The guide body is provided with an enlarged slot into which a spring element can be entered from the side, which spring element loads the valve needle of the nozzle element. Thus this injection device can be made more compact than known types and is therefore especially suitable to be used in automotive vehicles.

Abstract: Double-acting mechanical liquid spraying device having a housing which is adapted to be mounted upon and sealed to the neck of a liquid container, and which has a liquid-containing compartment therein. In the housing, aligned with the liquid-containing compartment, there is an operation cylinder which has an annular valve seat disposed transversely to and intermediate the length of such cylinder. Disposed within the liquid-containing compartment is a liquid pumping plunger of the cuff type which cooperates with the valve seat to close the opening through such seat when the plunger is in its forward terminal position, and which is driven to reciprocate within the liquid-containing compartment in forward and reverse liquid dispensing strokes. In each of such strokes the plunger forwards liquid from the liquid-containing compartment to a spray nozzle through a liquid-conducting passage.

Abstract: A concealing housing for a ceiling-mounted fire sprinkler head in which a bottom cap is automatically released to uncover the sprinkler head in the advent of a fire, the housing comprising a body supported by the sprinkler head, and a plurality of connecting studs to hold the cap to the body, each stud being of sheet metal and being releasably connected at a foot portion by low-temperature solder to the cap and threaded by a head portion through a hole in the body until an intermediate shoulder on the stud engages the body said stud being bent over at its head portion for retention upon the body.

Abstract: An apparatus for spraying plant-protective agents comprises a spray head having a motor, a spray plate mounted on the driving shaft of the former and a first container which is fastened to a lance. The container is connected via a connecting pipe line with a nozzle in the vicinity of the center of the spray plate. Diametrically opposite the mouth of the connecting pipe line in the container, a supply hose is connected with the first container which hose connects the latter container with a portable second container. Thereby, the relatively small first container can be refilled from the substantially larger second container. A large area can, therefore, be sprayed without having to handle the plant-protective agent. This reduces the danger of coming into contact with the plant-protecting agent. The apparatus is particularly suitable for the spraying of insecticides and fungicides.

Abstract: This invention describes a hand held paint sprayer that mixes paint products from at least two reservoirs, then combines the mixture with a pressurized gas source for propelling the mixed paint through a nozzle outlet. The spray gun incorporates a regulator for varying the amount of one product with respect to the other between 0% and 100%.

Abstract: Method and apparatus for guarding a spray tip (36) of a spray gun (10). A tip guard (20) is suitable for being connected to the gun (10) and the tip guard (20) includes an axially extending portion (34) which defines a tip guard cavity (32). The tip guard cavity (32) is in fluid communication with the liquid carrying passageways within the gun (10). Tip guard cavity (32) also extends axially downstream of the orifice (38) of the spray tip (36) whereby if the axially extending portion (34) is dangerously shortened, the tip guard cavity (32) will be exposed to the atmosphere to relieve the pressure within the spray tip cavity (46) immediately adjacent to the upstream end of the spray tip orifice (38). The velocity pressure generated by the gun (10) is thereby reduced to a level which is substantially safe.

Abstract: An engine fuel injector has a spring-biased valve member to be electromagnetically moved out of sealing engagement with a valve seat communicated with a fuel injection orifice. The movement of the valve member away from the valve seat is limited by engagement between a stationary stop member and a flange fixed to the valve member. The stop member and the flange have opposed faces to which magnets having the same polarity are attached to assure that the flange is kept closely spaced magnetically from the stop member during the time when the valve member is out of sealing engagement with the valve seat to cause liquid fuel to exist between the flange and the stop member at that time, whereby the squeeze force of the liquid fuel is reduced to shorten the time required for the valve-closing movement of the valve member.