Abstract: A fuel injection nozzle for internal combustion engines having an inwardly opening valve needle (I nozzle) is proposed, in which an induction coil is disposed in the closing spring chamber, the induction coil together with an armature influenced by the valve needle forming a signal transducer for a measuring appliance for detecting the onset of injection and further data, as needed, of the injection process. The air gap of the magnetic circuit of the induction coil is formed between the armature and a coil, toward which the armature moves during the opening stroke of the valve needle. As a result, it is possible to attain a small initial air gap and a large change, in terms of percentage, in the air gap. The apparatus according to the invention is particularly suitable for measuring circuits in which a direct voltage is applied to the induction coil and the voltages induced as a result of the air gap changes in the induction coil are superimposed on the applied direct voltage.

Abstract: An electronically controlled, microprocessor equipped fuel injection system for new manufacture or retrofit of existing diesel engines has a tubular injector provided with a fuel pressure amplification chamber next adjacent and communicating directly with an injector nozzle at one end of the tube; the nozzle has atomizing orifices for spraying the pressure amplified fuel into the engine cylinder. A fuel flow controlling solenoid is provided at the opposite end of the tube and all component parts in the tube between the nozzle and a spring loaded solenoid armature are disposed along a common axis extending longitudinally of the tube. Such parts include a fuel pressure amplification plunger, a hydraulic pumping piston for actuating the plunger, a spool valve shiftable toward and away from the armature and a needle valve normally closing the orifices.

Abstract: A safety spray wand with a selectively adjustable or interchangeable tip. The wand will selectively provide a high pressure or a low pressure discharge from a discharge tube. The wand has a handle with a pistol grip in combination with a large squeeze trigger. The pistol grip is extended and is molded around a receiving tube that projects downwardly from a discharge tube to thereby form a safety protection guard for an operator's hand while protecting the trigger from accidently being actuated. The receiving tube not only serves as a guard but also as a conduit to which a pressure source is attached and through which the fluid is directed to the discharge tube.

Abstract: A liquid spray head 1 comprises a body portion 2, 2A, 2C, releasably located within a socket 5 of a housing 6, 6A, 6B, having a supply port 19 for pressurized liquid, the body portion 2, 2A, 2C, having an inner end 3 and an outer, liquid discharge end 4, and also having a liquid receiving chamber 17 intermediate these ends 3 and 4 and connected to the supply port 19 to receive liquid therefrom, whereby liquid pressure is operable on portions 46 of the chamber 17 and body portion 2, 2A, 2C, to urge the spray head 1 into the socket 5 so as to counter the effect of liquid pressure on other portions 38 of the spray head 1 tending to urge the body portion 2, 2A, 2C, from the socket 5; a liquid delivery path 22 extending from the chamber 17 to the liquid discharge end of the body portion 2; at least one liquid sealing means 8, 8C, provided between the inner end 3, 3C, of the body portion 2, 2A, 2C, and the socket 5; and abutment means 16, 42, 16C, on the body portion 2, 2A, 2C, engageable by an extraction tool.

Abstract: A fuel injection apparatus for an internal combustion engine having engine cylinders includes a fuel tank, fuel supply pumps and fuel injection units. Each fuel injection unit comprises a cylinder, a plunger reciprocable in the cylinder by the engine, pump chamber defined between the cylinder and the plunger and receiving fuel from the fuel supply pump, an injection nozzle communicating with the pump chamber and a timing port formed in the cylinder. The fuel injection apparatus further includes a timing passage connecting the timing port with the fuel tank and a control valve. The control valve comprises a control chamber, a control valve body movable between the open and closed positions in the control chamber for controlling fuel injection, a spring urging the control valve body towards the closed position and a timing chamber formed adjacent the control chamber in the fuel injection unit for receiving fuel to move the control valve body towards the closed position.

Abstract: A fuel injection nozzle for supplying fuel to an internal combustion engine includes a valve member biased by a spring to a closed position and movable to an open position by fuel under pressure supplied to an inlet of the nozzle. The opening of the valve member is initially assisted by fuel under pressure supplied to an inlet of the nozzle. The opening of the valve member is initially assisted by fuel under pressure acting upon a piston. A stop limits the movement of the piston so that the remaining movement of the valve member is due only to the fuel pressure acting on the valve member.

Abstract: An automatic fire extinguisher and alarm apparatus, particularly suitable for use with waste receptacles, which discharges fire extinguisher fluid when exposed to a fire and sounds an audible alarm. Fire extinguisher fluid is quickly discharged from a reservoir onto the fire when heat from the fire melts a fusible alloy plug. A second reservoir contains a partially gaseous alarm agent, and is connected through a valve to a vibrating diaphragm gas horn. The valve stem is connected to a diaphragm separating the two reservoirs. When pressure is lost in the first reservoir upon discharge of the fire extinguisher fluid, the pressure of the alarm agent in the second reservoir moves the diaphragm and valve stem and opens the valve, allowing alarm agent to be discharged through the gas horn, raising an audible alarm.

Abstract: A nozzle includes a tungsten carbide body and threaded steel sleeve. The nozzle body includes a fluid jet opening arranged to be reoriented in response to rotation of the nozzle body. The nozzle body includes a first set of apertures for receiving a turning tool. The sleeve comprises a split sleeve retained longitudinally upon the nozzle body and is rotatable relative thereto. The sleeve threads are protectively disposed behind a flange of the nozzle body. The sleeve includes a second set of apertures which are alignable with the first set of apertures adjacent an inner end of the latter. The turning tool is engageable with (i) both sets of apertures for rotating the nozzle body and sleeve to install the nozzle, or (ii) with only the first set of apertures to rotate the nozzle body relative to the sleeve against the resistance of an O-ring to reorient the jet opening.

Abstract: A hose-end sprayer includes a linearly actuated valve such as a poppet valve that is opened by means of pressure applied thereto from a pivoted lever. The lever and valve provide instant on and off action and one-handed control over the water flow. Pressurized water containing a mixed chemical is supplied to a spray defining nozzle in a closed system that maintains the water under full pressure until after it emerges from the nozzle. By preventing contact between the water and air until the spray pattern is formed, better definition of the pattern is obtained and nozzle drip is eliminated.

Abstract: The trigger sprayer comprises a body having an upper horizontally extending portion and a lower generally vertically extending portion. The body has a passageway therein extending from one end of the upper portion to the bottom of the lower portion. A cylindrical hollow and a cylindrical cavity extend into the lower body portion from the bottom thereof. An insert member is adapted to be received in the hollow and cavity, and has a passageway therethrough communicating with the body passageway, a cap coupled to the lower end of the insert member to a container of fluid. A check valve assembly is associated with the insert member to a container of fluid. A check valve assembly is associated with the insert member passageway and includes a lower check valve. At least one of the valves including an elongate valve member and a frusto-conical shaped skirt extending forwardly from the valve member.

Abstract: An applicator for use by an operative in applying a liquid spray of chemicals, insecticides, herbicides or the like to growing plants, shrubs, or weeds. The applicator is comprised of a carriage, constituted of a frame provided with a pair of alternately disposed wheels mounted on an axle located at the lower end of the frame, and handle located at the upper end of the frame. A tank within which liquid can be provided is detachably mounted and supported upon the lower end of the carriage. The tank contains a pumping assembly, and the pump can be activated to pressurize the liquid. A spray nozzle assembly, inclusive of a pivotally movable spray nozzle is operatively communicated with said tank for the transfer of liquid from the tank to the spray nozzle for application to the growing plants, shrubs, or weeds.

Abstract: A self-propelled irrigation system that is fully automated to irrigate regular and irregular shapes of land. The system includes a self powered cart and hose connection system by which access is made to various points along the length of a water supply main. The cart is powered to move along a prescribed path defined by a ground mounted electrical conductor wire. The cart will follow the path defined by the wire and perform various functions at points along the length of the conductor as initiated by signal emitters located along the path. Throughout the irrigation sequence, hose connection and disconnection, the entire hose length is kept suspended above the ground surface as not to interfere with the adjacent crop. Several sprinklers on the cart frame are independently controlled to produce an even application of water over the prescribed ground area. This is done by selectively varying the rotational speed of the sprinklers.

Abstract: Drip irrigation apparatus including a continuous outer tube and a plurality of low rate determining inserts located at desired locations therealong interiorly of the outer tube, the inserts being selected to have one or more of the following features; an outlet chamber which extends over a significant portion of the circumference of the outer tube; a configuration which allows substantial flattening of the outer tube when not in use, a pressure responsive flow controller; a pressure reducing pathway formed solely or partially by the insert and an air pocket spring defined wholly or partially by the insert for cooperation with a pressure responsive flow controller, thereby providing a flow controller which integrally formed as a single unit.

Abstract: A reflective bead dispenser for use with an airless paint spray gun for marking traffic lines on pavement surfaces is connected to the spray gun by supporting a hollow tube in a passage through a handle of the gun. An inlet end to the tube is connected with a supply of reflective beads, an outlet end from the tube has a nozzle for dispensing reflective beads into a spray of paint emitted from the gun, and a valve controls a flow of beads through the tube. The beads are entrained in the paint spray and deposited along with the paint on the pavement surface to form a reflective stripe thereon.

Abstract: A strip nozzle assembly containing a detachable, pressure regulating inlet coupler and a plurality of pressure regulating outlet nozzles, whereby agricultural sprays may be strip applied. The assembly having particular application in a modular spraying system adaptable to either broadcast or strip spraying. Compatibility with system pressure and desired flow rates are achieved via flat plate, sharped edge orifices that in one embodiment are arranged in a series/parallel configuration.

Abstract: A sprayer system to apply concentrated agricultural chemicals in fine-droplets within the range of about 10 to 300 microns.A blower and a reservoir tank of agricultural chemical are carried by a terrain traversing vehicle the blower airstream passing through a volute that is axially equipped with a vanes type revolvable sprayhead having agricultural chemical delivered thereto by a hoseline. The blower airstream impinges upon the vanes, which rotates the sprayhead causing atomization into fine-droplets, and also castably sprays the liquid droplets toward crop foliage. The volute is desireably equipped with louvers to control the spraying direction, and the sprayhead vanes are desireably adjustable to control sprayhead rotational speed and the resultant droplet size of the emerging chemical.

Abstract: A spraying device comprising a spray nozzle holder mountable in a holder housing and having two mounting elements extending in opposite directions from the nozzle in the holder and transverse to the housing, one of these elements being a rotatable handle. The housing has two openings located substantially opposite each other for accommodating the respective mounting element; at least one opening having a width which is less than the width of the holder in the vicinity of the nozzle, and at least one slot-shaped opening along which the holder can move crosswise to the housing when the holder is being mounted in the housing or dismounted therefrom.

Abstract: A fuel injection nozzle for internal combustion engines is proposed which has a stepped piston which converts a medium pressure in the fuel inflow line into high pressure in accordance with the ratio between its piston surface areas. The stepped piston and the high-pressure chamber are disposed to surround the valve needle in accordance with the invention, resulting in a space-saving embodiment. The closing spring of the valve needle can be advantageously accommodated in the high-pressure chamber and can simultaneously act as the return spring for the stepped piston so that a separate part for that purpose can be dispensed with.

Abstract: An air knife is illustrated having an adjustable orifice which includes a flat plate forming a baffle on one side while on the other side a flexible plate is secured along one edge to the circular plenum offering a free edge portion which may be drawn inwardly with respect to the flat plate to form an adjustable opposite side of the orifice.

Abstract: An improved nozzle of the type which directs a flow of fluid against a moving substrate to obtain a uniform surface coating on the substrate. The nozzle consists of two rigid body halves mounted on a fluid feed pipe. One body half is fixed, and the other body half is rotatably mounted on the feed pipe for adjusting the size of the nozzle discharge opening. One or more closure loading assemblies are mounted on the nozzle for adjusting the size of the discharge opening and for maintaining the nozzle opening in an adjusted position. Each closure loading assembly has a fluid-actuated cylinder which forces the body halves toward a closed position opposing the internal fluid pressure in the nozzle body in combination with an adjustable differential screw. The adjustable screw is mounted on one of the body halves and engages a stop on the other body half to set the size of the nozzle discharge opening.