Abstract: An improved shower head dispenser for selectively dispensing and mixing liquid additives with shower water. The shower head dispenser comprises a body having a water inlet connected to a source of water under pressure and having an outlet. The body also defines an inlet chamber communicating with the inlet and a small diameter passage connects the inlet chamber with the outlet. One or more liquid additives are contained in separate bottles or containers and each container is connected through a supply line to a manually operated valve. The valve selectively connects each supply line with an aspirating conduit which communicates with the passage in the body. The body also includes a series of the larger outer passages which connect the inlet chamber and the outlet and are located around the first passage. The flow of water through the first passage creates an aspirating action to draw the liquid additive from the desired container and mix the additive with the water which is then dispensed through the outlet.

Abstract: A device generates pulsed liquid jets through a cumulative nozzle at high repetition rates by using a controlled oscillatory motion of the nozzle assembly coupled with the inertia of the water package and a piston to effectively evacuate the nozzle prior to generation of each jet pulse. The cumulative nozzle can be of any form, such as exponential, hyperbolic, cissoid, etc. Forward motion of the nozzle assembly serves to empty the nozzle of liquid residual therein from the previously generated jet. That forward motion also positions the residual liquid, freshly added liquid and a liquid accelerating piston for the generation of the next subsequent pulse. At the end of the forward motion stroke, the liquid and accelerating piston are rapidly accelerated into the nozzle by means of a high pressure gas.

Abstract: A fuel injection nozzle for internal combustion engines, having an outwardly opening valve needle, which is connected with a piston upon which a damping cap is placed, which is supported on a shoulder integral with the housing. In the damping cap, a damping chamber is formed, which communicates via a throttle conduit with the flow path of the fuel. The diameter of the piston is smaller than the cross section enclosed by the valve seat, as a result of which an annular shoulder is attained, on which the unthrottled fuel pressure acts upon the valve needle in the opening direction. This disposition has the advantage that at lower rpm and smaller fuel quantities, the valve needle can be effectively braked even up to relatively long needle strokes, without the injection duration becoming overly long at higher rpm.

Abstract: An ultrasonic liquid ejecting apparatus for discharging liquid droplets comprises a housing including a chamber for holding liquid therein having an intake port connected to a liquid supply container. A bimorph vibrator system is provided comprising a vibrating member secured to the housing in pressure transmitting relation with the liquid in the chamber and a piezoelectric transducer secured to the vibrating member for inducing a displacement therein to discharge a small quantity of liquid through an nozzle opening formed in the vibrating member. A circuit is provided for exciting the transducer at a frequency corresponding to the resonant frequency of the vibrator system.

Abstract: An expansion control mixing and dispensing nozzle adapted for attachment to an associated two-component liquid dispensing gun for mixing and dispensing liquid foamable products. The nozzle includes a mixing chamber, a mixing chamber outlet tube and an outlet tube cover arranged in co-axial relation. The outlet tube cover including an outlet slot or passage in its outer end portion; its inner end surrounds a part of the mixing chamber outlet tube so as to define an annular auxiliary chamber therebetween. The mixing chamber has spaced apart inlet ports for receiving individual liquid components and a baffle or the like to impart a swirling action to the components as they expand in the mixing chamber, a pre-discharge chamber lies between the outlet slot and the end of the outlet cover.

Abstract: A nozzle assembly for a hot-melt dispensing head having a heat transfer block from the head to a manifold. The manifold includes a passageway for hot-melt with plural, spaced apart nozzle inserts for dispensing hot-melt. In one configuration the nozzle assembly has a T-shape with the nozzle inserts on a side of the T-top distal to the dispenser head. In another configuration, the nozzle assembly has a Y-shape with the nozzle inserts 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: A barrier-free water cooler construction as disclosed comprising an enclosure having a forwardly projecting cabinet section having a single basin on the upper side thereof and providing for access by handicapped persons. The invention includes a water dispensing system including a control valve mechanism which is operated by any one of three actuating push bars located on the front and laterally opposite sides of the enclosure. The water system includes a unique water precooling arrangement to reduce cooling energy requirements and may be provided with a glass or similar receptable filler option which, like the aforesaid moveable actuating push bars, is adapted for motion-impaired or otherwise handicapped users.

Abstract: Apparatus for connection with a sill cock for communicating water under pressure from the sill cock with a hose having a lawn sprinkler communicating therewith comprising a water control unit having a female coupler for connection with the sill cock, a male coupler for connection with the hose, a valve between the couplers and a battery operated valve mechanism operable in response to the connection of the electric current thereto for effecting movement of the valve from a closed position into an opened position, and a manually portable programming unit containing a battery operated programming keyboard, a battery operated display, and batteries operatively connected therewith.

Abstract: An improved spray nozzle assembly particularly adopted for use in continuous casting apparatus and the like utilizing an atomized mixture of pressurized water and air as the cooling medium. The nozzle assembly is adapted to be interposed between the rolls of the casting apparatus and to deliver a cooling spray in the form of a fine mist distributed uniformly over a predetermined area of the ingot or slab. The assembly includes a specially formed mixing nozzle and discharging nozzle tip having turbulence generating shoulders, a transverse mixing chamber, and specially formed discharge orifice controlling the shape of the spray pattern and the uniformity of coolant distribution within that pattern.

Abstract: A centrifugal sprayer of the type having an electric motor driving a disc element, and coupled to a feed mechanism, wherein the feed mechanism is suspended in immersion in the liquid to be sprayed, including interchangeable hollow cone feed members having at least several surface slope angles relative to the vertex of the cone, and an outer housing around the feed mechanism, the housing having a bushing surface in supporting contact with the feed mechanism to maintain constant axial position during rotation of the cone feed mechanism.

Abstract: A fire protective system for cable trays comprises a plurality of flexible mattresses surrounding the cable trays and rigidly connected to a supporting structure mounted on the cable trays. Each mattress is formed of a fiber glass inner casing and a fire-resistant outer cover of textile material.

Abstract: An in-line switch and mixer control including a first restriction adjacent the outlet of a mixing device having a cleaning fluid and water inlet for controlling the flow rate from the mixer and a second restriction connected to the water inlet for varying the restriction of the water inlet to determine the mixing ratio. Initially, the first restriction is totally closed preventing any flow from the mixer and the second restriction is initially unrestricted. The first and second restrictions include a common actuator for sequentially operating the first and second restrictions to various intermediate restrictive positions.

Abstract: A fluid circuit for a cleaning device having a mixture with separate water and cleaning fluid inlets and fittings interconnecting a pressurized source of water and a pressurized source of cleaning fluid responsive to change the mixing ratio of cleaning fluid to water as well as to assure the degree of mixing. The outlet of the mixing device is provided to a spray nozzle wherein the mixed fluid is projected onto a cleaning surface by an air stream through the spray nozzle. A common pump provides two levels of air pressure, a high one to the spray nozzle and a lower one to the pressurized sources of water and cleaning fluid.

Abstract: A uniform water pattern oscillating wave type lawn sprinkler in which the impeller has a dynamic impeller ratio as herein defined of less than approximately 0.30, the reduction gear assembly has a gear reduction ratio of greater than approximately 400 to 1 and an efficiency of at least 26% preferably 39% or greater and the heart-shaped cam motion-transmitting mechanism has a heart-shaped cam with a cam factor as herein defined of less than approximately 3 so as to enable said housing structure to be an optimal minimum in size.

Abstract: An atomized cloud of droplets having an electric charge is generated wherein different discrete parts of the cloud are formed from different liquids. The discrete part of the cloud which has an active ingredient, such as a chemical insecticide or herbicide, is contained such as by enveloping it or directing it in a particular direction by a further discrete part of the cloud that includes an inert liquid such as water. The spraying apparatus comprises a plurality of nozzles positioned in a high velocity air stream to disperse liquid and generate an atomized cloud of the liquid. The nozzles are grouped into at least two sets, each set being arranged and positioned to generate a discrete part of the cloud. An electric charge is placed on the droplets as they are emitted. Each set of nozzles further include a liquid reservoir connected to the nozzles. Each reservoir is to contain a different liquid whether it be an inert liquid or different concentrations of an active liquid.

Abstract: An improved sootblower nozzle assembly adapted for cleaning heat exchange surfaces or the like comprising a lance tube having at least one nozzle affixed thereon. The nozzle comprises a tubular body formed with a centrally extending discharge throat and a plurality of second apertures arranged around the central discharge throat. A pressurized fluid blowing medium introduced into the lance tube during a cleaning cycle is discharged from the nozzle in the form of a composite stream including a central directionally oriented stream surrounded by a plurality of secondary streams forming an encircling protected shroud to maintain the integrity of the central stream and to increase its impact pressure on the surfaces to be cleaned.

Abstract: A spreading apparatus to be placed on a vehicle and comprising a container, from which the spreading material can be distributed through a dosing device, and a velocity sensing driving wheel placed at the rear end of the vehicle. The driving wheel may be lowered into contact with the roadway and is adapted to drive the dosing device and possibly also a spreading disc through an energy transferring device. The energy transferring device is provided by means of a hydraulic wheel pump coupled to the wheel, said hydraulic wheel pump feeding pressurized liquid through a liquid conduit to one or more hydraulic motors driving a plurality of stirrer and delivery rolls. According to the invention the pressurized liquid is also fed to a piston in a cylinder, which when the pressure in the conduit has been reduced to a predetermined value due to an empty material container or as a consequence of the spreading being decoupled, implies that the wheel is no longer pressed against the roadway.

Abstract: A fluid flow control device particularly useful as a drip irrigation emitter comprises a body member formed with at least two grooves in spaced parallel relationship separated by a separator wall, one of which grooves leads to the inlet and the other to the outlet; and a flexible member overlapping the two grooves and separator wall so as to meter the flow between the two grooves for substantially the complete length of the separator wall in response to the dynamic pressure of the flowing fluid.

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 seat disposed in a valve housing, downstream of which valve seat a preparation bore is provided in a nozzle body, which terminates in the fuel flow direction at a sharp-edged nozzle body end embodied by a first conical zone. The first conical zone protrudes into a cylindrical guide conduit of a front attachment. The cylindrical guide conduit discharges via a first guide conduit end into a conically widening guide conduit, which leads via a second guide conduit end into the intake tube of an internal combustion engine.

Abstract: Apparatus is disclosed for spraying electrostatically charged particles of paint toward a workpiece. Increased paint throughput is achieved over prior art devices by employing enlarged paint discharge passages and two different air streams. One air stream, which is adjustable in flow, serves to atomize the paint into substantially uniform, very tiny droplets and the other air stream, which is also adjustable in flow, directs the atomized paint toward the workpiece. Safety is increased by positioning the paint charging electrode within a paint delivery passage located relatively far upstream from the paint nozzle. A second electrode in the nozzle is "floating" in electrical potential and serves to supply additional electrical charge to the very fine paint particles as they issue from the nozzle. In this manner, the impedance of the paint itself and the "floating" electrode serve to reduce the risk of sparking between the paint spraying apparatus and the workpiece.