Abstract: A low cost trigger sprayer has a housing with a first liquid passage containing a spinner assembly. An elastomeric pump element is positioned generally horizontally such that pulling the trigger retracts the element and releasing the trigger allows the element to extend. The sprayer includes a low cost spinner assembly and low cost valving to control the flow of liquid within the sprayer. In one aspect of the invention, the housing has front and rear sections with the rear section having a saddle portion and being hinged to the front section for pivotal movement from an open position for molding the housing to a closed position for operating the sprayer. In another aspect of the invention, the container has a rear portion which extends upwardly past the neck and defining a saddle recess, with the housing connected to the neck of the container and positioned forwardly of the upwardly extending container portion.

Abstract: A suspension system for a boom of an agricultural particulate material distribution system comprises an inclined strut extending from the boom upwardly and inwardly to a suspension element at the tank. The suspension element comprises a plate attached to the rear wall of the tank and projecting outwardly to the side of the tank on which is mounted a pivot lever having a lower end attached to the plate and an upper end carrying a swivel for attachment to the strut. A gas bag spring is located in a hole in the plate so as to accommodate shock loads applied to the lever from the boom. A self leveling switch increases and decreases pressure in the gas bag spring to maintain a required orientation of the boom and to move the boom to a raised position for avoiding obstacles and for folding.

Abstract: A microdispensing ophthalmic pump is provided for repeatedly delivering doses as small as 5 microliters within an angular operating range. The pump basically comprises a reservoir, a dispensing cap, an actuator and a pump body with a pump mechanism disposed therein. The pump mechanism is regulated by a limited-travel inlet check valve and a biased-closed outlet check valve. A failsafe mechanism is formed between the actuator and dispensing cap to prevent operation of the pump outside the operating range.

Abstract: A fluid discharge nozzle includes a nozzle tip defining a spout for jetting fluid at a jet angle. Wall surfaces surround the spout and extend downstream with respect to a jetting direction. The wall surfaces contact free surfaces of the fluid jetting out of the spout. Fluid jets produce negative pressure regions inwardly of a forward end surface of the nozzle tip.

Abstract: The present invention is directed to a system for direct injection of chemicals or other additives in a liquid solution into a spray nozzle. The injection system of the present invention may be mounted adjacent, or in close proximity, to the spray nozzles of a sprayer. The present invention comprises a variable speed/stroke diaphragm pump capable of providing a double pumping action such that a liquid solution may be continuously pumped at a controllable rate to one or more spray nozzles of a sprayer.

Abstract: A fuel injection valve for internal combustion engines, with a valve member which is guided axially displaceably in a bore of a valve body and which has, at its end on the combustion space side, a conical valve sealing face, the valve sealing face cooperates with a conical valve seat face at that end of the bore located on the combustion space side, a blind hole or a conical region adjoining said valve seat face on the combustion space side, with a pressure space opening onto the valve seat and located between the valve member shank and the wall of the bore, and with at least one injection duct leading off from an inner wall of the injection valve, said inner wall being located downstream of the valve seat. For forming the injection jet, the entry regions of the injection duct are rounded, an upper entry region which faces the pressure space having a large radius (RA) and a lower entry region which faces away from the pressure space having a smaller radius (RB). Thus, the size of the radius (RA) is 0.75 to 1.

Abstract: A nozzle assembly (11) of an adhesive dispensing valve (10) includes a first valve (32) adjacent a discharge orifice (34). The first valve (32) opens to permit the flow of adhesive therethrough and closes to terminate the flow of adhesive in response to respective first and second states of the valve operating module (14). The adhesive dispensing valve (10) has a separable nozzle plate (102) that includes the first valve seat (100) and the discharge orifice (34) and is coupled to a nozzle body (72) with a mounting cap (104). A secondary valve (146) is located upstream of the first valve (32) and permits adhesive to flow therethrough in response to both of the first and second states of the valve operating module. However, as the mounting cap (104) and nozzle plate (102) are removed, the secondary valve (146) automatically engages its valve seat (94), thereby terminating the flow of adhesive while the nozzle plate (102) is removed from the valve body (16).

Abstract: An irrigation sprinkler of the type having an inlet control valve is provided with a removable valve seat formed integrally with an inlet filter screen. The valve seat is positioned to engage a valve head to normally prevent water inflow to a sprinkler case, whereas the filter screen prevents entry of small rocks and other particulate debris into the sprinkler case when the inlet control valve is open. The valve seat is removable from the top of the sprinkler case, without requiring disconnection of the case from a water supply line, to permit flushing of collected debris or to permit replacement of a damaged valve seat.

Abstract: A fuel injection system comprises a pumping plunger slidable within a bore and arranged to supply fuel to an injector nozzle. A spill valve communicates with the bore to control the fuel pressure applied to the nozzle. The nozzle includes a valve member biased into engagement with a seating by a spring, the spring engaging a piston member at least part of the end of which remote from the spring is exposed to the fuel pressure in the bore. The spill valve includes a flow connection which communicates by way of a restrictor with a drain. The restrictor is formed by the piston member and cylinder within which the piston member is slidable.

Abstract: Rechargeable dispensers, in particular spray bottle dispensers including at least one chemical reservoir for recharging the spray bottle dispenser. Preferably, a plurality of separate chemical reservoirs containing chemical concentrate are provided within the spray bottle dispenser to fully contain any inadvertent spillage of chemicals, and to insure a high degree of safety against accidental spills, and/or accidental ingestion by children.

Abstract: An improved disinfectant dispensing and fragrance diffusing apparatus for dispensing a liquid disinfectant. The disinfectant dispensing and fragrance diffusing apparatus has a first portion including a container and a delivery mechanism. The container is for holding the liquid disinfectant, and the delivery mechanism is for delivering the liquid disinfectant from the container into a toilet bowl or urinal. The improvement comprises a second portion including at least one object having a particular fragrance and an attachment mechanism for removably attaching the object to the first portion. The attachment mechanism can removably attach more than one object to the first portion so that the intensity of the particular fragrance can be varied. The particular fragrance is diffused into the air adjacent the toilet bowl or urinal.

Abstract: A fuel injection valve comprisesa valve unit 3 which includes a hollow valve body 9, a valve seat 11 provided at an end of the valve body and having an injection nozzle 10, a valve 12 movable in the valve body to come into contact with and separate from the valve seat 11 so that the injection nozzle 10 is opened and closed, anda swirler 13 which is arranged around the valve 12 to support the same in a slidable manner and which provides a swirling force to fuel flowing through the injection nozzle 10, wherein the swirler 13 has outer circumferential surface portions 19a which are in contact with an inner circumference of the valve body 9 to regulate the position with respect to the valve body 9; flow passage portions formed between adjacent outer circumferential surface portions 19a to define fuel passages for passing fuel in the axial direction, and swirling grooves 25 formed in the end surface which faces the valve seat 11 in the axial direction so as to be at an eccentric position with respect to the center

Abstract: The present invention is directed to methods for preparing devices having hollow metallic microchannels on a surface of a planar substrate. More specifically, the present invention is directed to methods for preparing devices having surface metallic microchannels with a range of widths and heights selected to provide efficient flow characteristics and having thick and, thus, strong and durable channel walls. In addition, the methods of the present invention are compatible with standard integrated circuit fabrication techniques and, because the microchannels are formed upon the surface of the substrate without degrading the surface planarity, these techniques can be used to incorporate electronic circuitry into the microchannel-containing devices. For purposes of this application, the term "microchannel" refers to enclosed or partially enclosed channels having heights within the range from about 2 to about 200 micrometers (.mu.m) and widths within the range of about 10 micrometers to about 2 millimeters.

Abstract: A system of multi-colored sprinkler nozzles are molded simultaneously in a multi-cavity mold and emerge from the mold in an interconnected rack of multiple nozzles having nozzles of multiple units with common characteristics identified by common color.

Abstract: A water jet regulating cap for a water delivery nozzle, for e.g., lawn sprinklers with an oscillating arm, comprises two parts of differing plastic materials tightly fixed together. A first part, formed of a rigid plastic material, has a sleeve-like shape and is attachable to the nozzle in such a way as to be held in an axial direction and revolvable around the axis of the nozzle between two end angular positions. A second part, formed of a soft plastic material, has a cup-like shape with a base through which extends an off-center hole which is selectively alignable with a corresponding off-center hole of the nozzle according to the angular position of the cap with respect to the nozzle.

Abstract: The invention relates to an apparatus for forming liquid droplets, such as a micro nebulizer, useful for preparing samples for subsequent analysis via MS, AA, ICP, CE/MS, and similar analytical systems. The apparatus has a mechanically stabilized inner microtube or needle, thereby ensuring controllably uniform droplet size The mechanical stabilization is provided by securing the inner microtube or needle, such as by narrowing the inner diameter of the outer microtube or otherwise narrowing the annular intermediate space between the inner and outer microtubes for a predetermined length. Thus, the inner microtube is secured in a centered or otherwise predetermined fixed radial position, with minimum perturbation of the fluid flow. Further, a tip, when coupled with the exit end of the outer microtube, provides a region in which the sheath fluid flow in the outer microtube stabilizes prior to both exiting the tip and colliding with the liquid analyte exiting the inner microtube.

Abstract: An air freshener includes a top cover shell and a bottom cover shell respectively shaped like a slice of bread and pivoted together, a spring plate retained between the top cover shell and the bottom cover shell, two clamping plates shaped like a slice of vegetable leaf and a slide of cheese and respectively fastened to the top cover shell and the bottom cover shell on the inside and forced by the spring force of the spring plate to hold a cake of solid perfume in therebetween, the bottom cover shell having a tongue with a hanging hole for hanging, and a retaining hole for fastening a clip.

Abstract: A dispensing orifice for free-flowing, liquid condiments is provided. The dispensing orifice is adapted to be provided as a fitment for a container, especially for a bottle containing liquid condiments. The dispensing orifice provides for two modes of dispensing, a dropwise dispensing pattern, and a streamwise dispensing pattern.

Abstract: A drip irrigation hose of the continuous emitter type in which the outlets from the regulating passage each comprise a single longitudinal slit. By controlling the length of the slits and the flexibility of the film, water drips from the outlets when the hose is pressurized without clogging when the hose is depressurized. The slits are sufficiently long and the film is sufficiently flexible so the water drips from the outlets when the hose is pressurized. The slits are sufficiently short and the film is sufficiently rigid so the outlets close completely when the hose is depressurized. An outlet forming wheel has a knife blade on its periphery. A backing wheel engages the outlet forming wheel to establish a first nip therebetween. The backing wheel has on its periphery a circumferential slot into which the knife blade fits at the first nip. A rib forming wheel has around its periphery impressions that define a desired track pattern for the ribs.

Abstract: A header fabricated of a lightweight non-metallic material includes a pair of opposed ears which are adapted for sliding mated engagement within a channel support. The header includes reinforced ribs which present relatively planar surfaces with spaced openings that accommodate a plurality of spray nozzles.