Abstract: A device for the controlled dispensation and unattended evaporation of volatile liquids includes a housing that accommodates a reservoir charged with a volatile liquid. The reservoir has an outlet for releasing the volatile liquid from a lower end of the reservoir. A valve mounted on the reservoir controls the flow of the volatile liquid through the reservoir outlet. The valve allows a controlled quantity of the volatile liquid, in the form of discrete droplets, to be gravitationally delivered, on demand, to an absorbent matrix. A matrix housing supports the matrix below the reservoir outlet. The absorbent matrix absorbs volatile liquid that the outlet delivers and dispenses the volatile liquid as a vapor to an external environment. The absorbent matrix dispenses the vapor via a ventilator that may be either releasably or integrally mounted to either the matrix housing or the housing that accommodates the reservoir.

Abstract: The invention relates to a device for generating a fog, characterized in that it comprises: a) a first closed vessel (1) kept at temperature and filled with a mixture having such a vapor pressure curve that pressure can be generated by varying the temperature of the mixture; b) a second closed vessel (2, 2', 2") with a heat exchanger kept at a higher temperature; c) a pipe (7) with a valve (8) connecting the mixture from the first vessel to the second vessel (2, 2', 2"); d) an outlet (16, 16') in the wall of the second vessel (2, 2', 2") for distributing the fog generated under pressure in this latter vessel into the environment.

Abstract: A liquid sprinkler having a substantially hemispherical shaped head at the upper end of a vertical rise pipe. The head is spaced above an area to be watered and has a plurality of nozzles on the hemispherical surface which are sized and positioned to afford even water distribution over the watered area.

Abstract: In an accumulator fuel injection device, a valve member of a solenoid valve includes a shaft and a spherical member. The spherical member is slidably supported at the tip portion of the shaft. The spherical member is prevented from falling off by caulking the tip of the shaft. A flat plate working as a valve seat for the spherical member is provided so that the spherical member allows communication between a pressure control chamber and a low-pressure side when separated from the flat plate, while prohibiting the communication therebetween when seated on the flat plate. On the other hand, the flat plate is formed with fuel relief passages in a tight contact region between the flat plate and the spherical member. The fuel relief passages communicate with the low-pressure side even when the spherical member is seated on the flat plate. Thus, a hydraulic force applied to the spherical member in a solenoid valve opening direction when the spherical member is seated on the flat plate, is rendered smaller.

Abstract: The invention sets forth a fuel injection valve for internal combustion engines, which includes a valve member, axially displaceably guided in a valve body. The valve member includes a sealing face on an end toward a combustion chamber which cooperates with a valve seat face provided on the valve body in order to control an injection port. The injection port communicates on an end remote from the combustion chamber with a final control element for actuating the valve member. The injection valve has a hydraulic damping device which when stoppage of the valve member in an intermediate position between contact with the valve seat and the maximum opening stroke is controlled by the piezoelectric final control element keeps the valve member in that stroke position.

Abstract: An improved spray gun having an aluminum gun body and a sprayhead made of a plastics material, preferably of polybutylene terephthalate. The sprayhead is permanently secured to the spray gun body, preferably with a swaged ring of stainless steel. The spray gun may be provided with a plastic handle which is preferably formed from polybutylene with 10% of a polyester elastomer. In one embodiment, the sprayhead is oriented relative to the gun body prior to securing to select either gravity feed or suction feed for the sprayed fluid.

Abstract: An ultrasonic aerosol apparatus having a piezoelectric element which generates ultrasonic signals in response to signals received from an oscillating circuit, where the temperature of the piezoelectric element is controlled by an electronic device such as an N.T.C. thermistor. The temperature control device senses the temperature of the piezoelectric element and controls the power fed to the oscillator circuit in accordance with the temperature of the piezoelectric element. Rather than cut power completely to the oscillator circuit (thereby interrupting the atomization process of the apparatus), the temperature control device reduces power fed to the oscillator circuit when the piezoelectric element temperature rises above a predetermined value, and increases power fed to the oscillator circuit when the piezoelectric element temperature falls below a predetermined value. Leakage of liquids (e.g.

Abstract: An improved hand held rotary atomizer spray gun is disclosed. The spray gun includes a housing with a depending handle. A paint tube within the housing delivers paint to a rotatable bell atomizer which is mounted adjacent the front of the gun. A turbine assembly includes a turbine rotor which drives a turbine shaft which mounts the bell atomizer. The turbine shaft is supported by a bearing air chamber. A turbine air passageway and a bearing air passageway supply turbine air to the turbine rotor and bearing air to the bearing air chamber. When a trigger is squeezed paint is supplied to the atomizer bell while turbine air rotates the turbine shaft and the bell atomizer. An air shuttle assembly prevents air flow to the turbine unless sufficient bearing air is flowing to the bearing air chamber. In a preferred embodiment shaping air is supplied to shaping air openings in a housing air cap and the atomizer bell includes serrations on its inner edge.

Abstract: An improved HVLP spray gun which operates from an air supply source and an improved nozzle therefor are disclosed. The HVLP gun has a fluid nozzle including a first, integral, laterally extending portion including pressure reduction orifices which are calibrated, relative to a fluid passage in the nozzle, so that the spray gun operates as an HVLP spray gun. The fluid nozzle includes a second laterally extending portion including a surface, against which atomization air impinges after exiting the calibrated pressure reduction orifices, and a plurality of longitudinally extending air distribution holes, wherein atomization air, after passing through the calibrated pressure reduction orifices, is directed radially outwardly in an expansion chamber where the low velocity air is pressure equalized before exiting through the air distribution holes and being directed within the air cap inwardly toward a fluid atomizing annulus.

Abstract: The present invention relates to liquid dispensers, more specifically to a multi-port dispensing system that allows the user to either receive a spray of liquid for cooling or a stream of water for drinking. The preferred embodiment of the present invention consists of an ejector (or spray head) that attaches to a body. The body in turn attaches to a container. Once fully assembled, the user may drink liquid from the container by sucking on the straw protruding from the body. Simultaneously or sequentially with drinking from the straw, the user may receive a refreshing spray from the ejector.

Abstract: A mixing and dispensing system for two reactive fluids, such as two-component polysulfide sealants, in which the dispensed fluids are supplied to a hand operated mixing and dispensing gun through a pair of flexible hoses suspended above the floor from a pivotal boom. The flexible hoses are pivotally attached with swivel joints onto the inlets of the gun that are spaced on opposite lateral sides of the gun, and the swivels are rotatable about a common generally horizontal pivot axis. The gun is fully weight supported in an operative position above the floor with a tool balancer attached to the boom. The tool balancer includes an adjustably tensioned and extendable line that is pivotally attached to the top of the gun body and rotatable about a generally vertical pivot axis.

Abstract: The flaps of the C/D exhaust nozzle for a gas turbine engine are arranged to obtain synchronous movement relative to each other and the interconnecting fulcrum links are attached to a coaxially mounted combined piston/sync ring by an H-shaped link. One link from one convergent flap is connected to one of the fulcrum links and the adjacent convergent flap is connected to the same fulcrum link. The redundant synchronization provided by the H-shaped links and flap connections provide damping of the flap train. The fulcrum links are judiciously mounted between adjacent convergent flaps.

Abstract: An air assist top feed fuel injector having a nozzle end for delivering fuel to an engine induction passage includes a retainer shroud on the injector nozzle end for directing air adjacent the nozzle end for atomizing the fuel. In a preferred embodiment, the retainer shroud is an integral member including an interconnected end cap, a central seal retainer and a connecting sleeve between the cap and retainer. The member directs assist air around the nozzle to atomize the fuel and retains lower and central seal rings that prevent leakage from or into the air passages. Alternative embodiments include separate end cap, upper ring retainer and lower ring retainer members or integral upper and lower retainer members that coact to similarly direct and prevent leakage of assist air.

Abstract: The present invention provides an irrigation control valve for converting water supplied to the irrigation control valve at a constant, low-volume flow rate into a pulsed, high-volume flow rate discharge. The irrigation control valve includes a control valve body having an inlet coupled to the water supply tube, an accumulation chamber, a mist port and a mist valve assembly for intermittently discharging the water from the accumulation chamber out of the mist port. The irrigation control valve further includes a pressure relief valve assembly operably coupled to the water supply tube for relieving the pressure within the accumulation chamber when the irrigation control valve is not in use.

Abstract: A nozzle cone and an oscillating fluid-jet nozzle system capable of producing relatively high-velocity, high-frequency oscillating fluid jets useful in waterjetting and other industrial spray applications. The oscillating fluid jetting apparatus includes a conduit and a follower which is mounted with respect to the conduit. A cam mechanically drives the follower so that the cam moves with respect to the follower. A portion of the conduit is secured with respect to a housing. An inlet block is secured with respect to the housing. An inlet end portion of the conduit is secured with respect to the inlet block. The inlet block has a fluid inlet opening which is in communication with the conduit.

Abstract: A hygrostat system employs a hygroscopic element of a coherent polymer suitable for burying in soil near a plant (for example, a pot-plant). The hygroscopic element directly contacts the soil and has no lost motion as it expands and contracts so that the soil does not interpose itself at the ends of the element. In one embodiment, the hygrostate system has an upper chamber shaped like an inverted cup closed by a diaphragm and a lower frame shaped like an inverted stirrup having a lower arch and having an integrally-molded upper snapping ring, which fits inside the rim of the upper chamber. The upper chamber has a water inlet/outlet spigots extending therefrom. The hygroscopic element is strip shaped and is clipped or keyed at its lower end to a key-stone protrusion formed at the bottom of the lower frame. A pair of guide rails, which serve to stiffen the hygrostat element against buckling, extend from each side thereof.

Abstract: A nozzle for a gas turbine engine is provided which includes an outer casing, a convergent section, a divergent section, an external fairing, and apparatus for sealing between the external fairing and the divergent section. The convergent section communicates with the augmentor on one end and with the divergent section on the opposite end. The end of the divergent section opposite that attached to the convergent section is pivotly attached to the external fairing. The divergent section includes a plurality of divergent flaps and divergent flap seals circumferentially spaced. The apparatus for sealing between the external fairing and the divergent section attaches to the divergent flaps and divergent flap seals and mates with the external fairing.

Abstract: The C/D axisymmetrical exhaust nozzle for a gas turbine engine is designed to fit on the engine and STOVL aircraft and includes an hydraulic actuator and a combined load balancing piston/sync ring that is judiciously mounted in the assembly and discretely attached to a fulcrum link and the mechanism is enclosed between concentrically spaced static structure for defining a full-hoop configuration. The actuator is attached to flanges formed on the static structure to allow for access to the attaching bolts. Rollers are mounted on the sync ring to ease the rectilinear movement of the sync ring. Positioning the actuator rectilinearly rotates the fulcrum and connecting links to position the flaps for varying the throat size and C/D configuration for optimum engine performance.

Abstract: An arc spray bead for uniformly distributing molten metal. The head includes a pair of contact tips, a primary nozzle and a plurality of side nozzles. Wire is fed through the contact tips into an arc zone where the wire tips are melted. The plurality of side nozzles are located adjacent to the contact tips downstream from the primary nozzle. The primary nozzle blows the molten metal into the stream of the side nozzles. The nozzles atomize, cool and uniformly distribute the molten metal into a desired spray pattern. During spraying the feed wires are moved forward. Initially upon discontinuing the spraying, the feed wires are retracted in part to prevent fusing of the wire leads.

Abstract: A rotary atomizing electrostatic coating apparatus includes air feed passages connected to an air bearing, a turbine, and a shaping air cap, respectively. In any one of air feed passages, a divergence portion for causing a portion of air flowing in the one air feed passage to diverge from the one air feed passage is formed so that a diverging air flows into an interior of the drive shaft. As a result, it is not necessary to provide an additional, air feed passage and an air source therefor for preventing paint from entering a bearing clearance between the drive shaft and the air motor. As a result, a size of the apparatus will not be large and a cost of the apparatus will not substantially increase.