Abstract: To ensure functioning and permanent readiness for operation of a sand-dispensing device for motor vehicles, which comprises a sand container and at least one sand channel with a sand outlet facing the wheel, two closing means are provided. The first one closes the outlet of the sand container, i.e. the passage into the sand channel, and the second one closes the sand outlet. The two closing means open simultaneously, so that the sand is discharged from the sand container directly onto the roadway. To stop dispersion, the outlet of the sand container is closed earlier, so that the sand channel can get discharged. Only then the second closing means closes the sand outlet of the channel and protects the discharged sand channel and the first closing means against humidity and mud.

Abstract: A flow direction controller mounted on the outlet of an air conditioner or the like and adapted to control the blowing direction of the air. The flow direction controller is composed mainly of two flow-attaching walls and a control blade rotatable on a shaft. The control blades has two surfaces each producing a flow biasing effect and a curved surface. With this arrangement, it is possible to deflect the flow of blowing air over a wide angular range and also to realize a split-flow blowing without being accompanied by a substantial reduction in the air flow rate, by making efficient use of the attachment of the flow components to the attaching walls and the curved surface.

Abstract: An electromagnetically actuatable valve which serves in particular to inject fuel into the intake tube of internal combustion engines operating with fuel injection systems. The fuel injection valve includes a valve housing, a shell core having a magnetic winding and a flat armature, which is firmly connected with a valve element which passes through a central guide opening in a guide diaphragm and cooperates with a fixed valve seat. The guide diaphragm has a fastening zone and together with the central guide opening cut out of a centering zone of the guide diaphragm guides the valve element in the radial direction toward the valve seat. The fastening zone is connected via struts with an annular guide zone on which the flat armature, under spring tension, rests with a concentric guide edge and is guided in a plane parallel to the end face of the shell core. The centering zone of the guide diaphragm is connected in turn via struts with the guide zone.

Abstract: This invention is directed at a sprinkler head for automatic fire extinguishing systems having deflectors that are replaceable. The deflectors may be replaced, while the head is installed in an active system, without shutting the system down.

Abstract: In an alarm valve for permanently installed fire-extinguishing systems, having a blocking element mounted in a valve housing with an inlet and outlet and which tightly blocks the open cross-section of the housing and locking and release mechanism integrated into the valve, the improvement wherein the locking and release mechanism comprises at least one radial depression at the open cross-section of the valve mounting, at least one locking element engageable with the at least one depression to lock the blocking element in a blocking position. The locking element is maintained in the engaged position against the pressure of an extinguishing fluid in response to the pressure of a gas or mixture of gases exceeding a predetermined level which is weaker than the pressure of the extinguishing fluid.

Abstract: A container includes a housing which can be expanded and contracted by slidably moving a pair of housing members relative to each other. Access to an interior chamber of the container is controlled in response to the relative position of the housing members to each other. The expansion of the housing to permit access to an interior chamber of the container can be accomplished using one hand only.

Abstract: An apparatus (unit A) for completely and uniformly mixing different colored paints from a reservoir (unit B) is constructed from upper and lower sections (9) and (11). Different colored paints from reservoir (unit B) are supplied through lines (15) to inlet passageways (29) and (29c), which are in fluid flow communication with flow control valves (23) and (23c) and with corresponding fluid channels (37) spiraling around a generally frustoconically shaped protrusion (27) extending upwardly from the lower housing section (11). Protrusion (27) snugly engages within a correspondingly shaped cavity (25) formed in upper housing section (9), with the inside surface of the cavity cooperating with channels (37) to form individual passageways that crisscross each other to thoroughly mix the different colored paints carried therein. The passageways terminate at the upper end portion of protrusion (27) to discharge the uniformly mixed-together paint out through an outlet tube (5).

Abstract: A nozzle for atomizing or discharging a liquid, particles, powder or the like in a uniform and stable state without disturbance, utilizing a rotating air current of low wind pressure, low velocity and low flow rate. A working fluid, for example air, is fed through a passage of a nozzle body, flows in a laminar state around a working fluid straightening member, and then passes through tornado-stage fluid slots and is discharged in a tornado shape vortex at the nozzle outlet. A vacuum is produced when the working fluid is discharged from the nozzle outlet, and a fluid to be atomized is drawn through a passage in the straightening member by this vacuum and is atomized together with the working fluid in a tornado shape at the nozzle outlet. The nozzle bore can be larger than in conventional nozzles.

Abstract: A versatile manually operated striping device has a wheeled base and a handle for pushing the base. The base is in a block Y configuration which provide a U-shaped front end. The front wheels are mounted on separate axles that are extra long. A disk shaped mask is attached to the inboard side of each axle. For normal striping, a can tower is mounted on a moveable mounting bracket that is positioned so that the center of the bottom of the can tower is centrally located in said U-shaped front end. An aerosol spray can inserted in the can tower then sprays, the paint between the legs of the U to provide the normal working, when an actuator is activated. The moveable mounting bracket can be relocated to permit spraying behind the central transverse portion of the base or to the side. The mounting bracket includes a pluralty of holes in a vertical line that fit mounting studs that are attached to one side and to the rear of the can tower.

Abstract: A fan-jet sprinkler of the type which has an oscillating horizontal nozzle cylinder driven by a turbine wheel and a translation drive, the sprinkler having a rotational connection between its stand and housing, or between the nozzle cylinder and an oscillating drive sleeve, so that the oscillation range can be shifted by adjusting the angular relationship between the oscillation range and the sprinkler stand independently of the drive transmission.

Abstract: Liquid fuel, particularly slurry-type fuel, such as coal-water, slurry or coal-oil slurries, is atomized by bringing the fuel into contact with gas under pressure in an atomizing nozzle (1). To this end, a continuous stream of fuel is passed through a channel (17) of circular cross-section. The stream of fuel is accelerated in the channel, adjacent the outlet end of the nozzle, and is preliminarily disintegrated by means of at least one first stream of gas under pressure directed inwardly against the outside of the fuel stream. The fuel is finally atomized by directing at least one second stream of gas under pressure outwardly against the inside of the accelerated and preliminarily disintegrated fuel stream, substantially immediately after said stream exits from the nozzle.

Abstract: A whirlpool jet housing having a unitary combination orifice and directional flow that can be readily coupled and decoupled from the jet housing. The combination orifice and directional flow includes means for drawing air into the directional flow immediately prior to discharge of the water and thereby discharge a mixture of air and water. The combination orifice and directional flow is adapted to permit the coupling to the water aperture for the jet housing to be continuously varied between a fully on and fully off position to vary the volume of water discharged. Control means are further provided to permit the user to turn the air fully on or fully off at the jet housing while controlling the flow of water at the housing. The whirlpool jet housing includes improved means for mounting the housing to a water vessel and an improved installation tool for use therewith.

Abstract: An ultrasonic liquid atomizer particularly for high volume flow rates is disclosed. An enlarged tip with a plurality of orifices is provided to increase the flow rate. A gradual transition to the enlarged atomizer tip can also be provided to enhance performance. A barrier disposed adjacent the atomizing surface of the atomizer tip enhances proper atomization of liquid, particularly when the enlarged atomizer tip is used, and particularly when such an atomizer is vertically oriented with the tip facing downwardly. A lip extending about the atomizer surface prevents unatomized liquid from leaving the atomizing surface in radial directions.

Abstract: Particulate material, which may be heat softened or liquified, or which may remain solid, is fed outside of an electrical heating zone for electric arc heating under pressure a continuous flow of heated gas, or outside of a combustion chamber producing high pressure, high temperature products of combustion, axially into the converging flow of the heated gas or products of combustion while entering a converging portion of a flow expansion nozzle having a nozzle bore of a length that is at least five times the diameter of the nozzle bore. This restricts the diameter of the column of particles passing through the nozzle bore to prevent build up of particle material on the nozzle bore, if molten or heat softened, while insuring sufficient dwell time within the bore to effect particle heat softening or melting, or if the particles are solid, to prevent abrasion of the nozzle bore wall by the particles while accelerating the particles to supersonic velocity.

Abstract: A rotary sprinkler comprising a base, a stem mounted on the base for rotation relative thereto, the stem having an inlet for receiving a pressurized water supply, a water discharge nozzle mounted on the stem and being rotatable together therewith relative to the base, water driven drive apparatus for rotating the stem relative to the base, selectably positionable deflector apparatus for engaging a stream of water emitted by the nozzle for determining the maximum radius of the stream, and cam apparatus for operating the deflector apparatus and including manually settable cam apparatus for selecting an overall size and pattern of sprinkler stream coverage, and second cam apparatus for determining the desired sprinkling pattern as a function of the azimuthal orientation of the nozzle.

Abstract: A simplified vaporizing dispenser features snap attachment of a base cap to an inverted container, positive "ON" and "OFF" adjustments for the respective activation and deactivation of the dispenser, the use of an absorbent sheet shaped in the form of the frustum of a cone with the narrow end inserted in an annular well for isolating the wetting area of the absorbent material from the vaporizing area and thereby enabling waving of the dispenser about in the air without spilling liquid, and an outer decorative sleeve that enables adjustment in the emitted vapor level.

Abstract: An acoustic fuel injector system comprises a DC-to-DC converter (14) for supplying a regulated voltage to a frequency controlled oscillator (16) which drives the injector valve (18) or valves. The converter comprises a flyback oscillator (28) including a switching transistor (32) and a transformer (34, 36) for applying rectified current pulses of variable amplitude and occurrence rate to an output capacitor (42). A variable impedance device (50) in the input circuit to the flyback oscillator is controlled by a feedback signal (68) from the output circuit (30) to vary the cycle rate of the flyback oscillator to maintain output voltage at a desired value. The feedback signal is coupled to the oscillator control circuit input to effect a variable regulated output voltage which is relatively high upon injector turn-on but decays to a lower operating level thereafter.

Abstract: In a stream-controlling device for faucets, water from the faucet passes through a first flow-restricting orifice in a circular flow restrictor mounted in a casing secured to the faucet, the restrictor having a conical wall portion sloping downwardly and inwardly toward the orifice. From the latter water enters a chamber between the restrictor and the casing's bottom wall, the latter having opposite the orifice a recess with a conical surface which deflects the water radially outward through an annular second flow-restricting orifice formed by the bottom wall and the lower end of the restrictor's conical wall. From this second orifice, which has a larger throughflow area than the first orifice, water enters an annular subchamber having a substantially enlarged volume due to the restrictor's conical wall.

Abstract: A method of dispensing plural component polyurethane foam is disclosed wherein the working parts are cleaned by a combination of air purging and immersion in a static solvent bath.

Abstract: A drip feed device for irrigation purposes comprising a body having an inlet on one side and an annular wall on the other, engaged by a cup having an outlet on one side and an annular wall on the other, to engage the annular wall on the body and housing in a chamber formed between them a button having circular flow paths on each side with flow-restricting baffles which overlap in the flow paths to give counter direction flow around the baffles.