Abstract: The fragrance dispenser of this invention incorporates a service life indicator for the battery along with a fragrance pack having a service life equal to the service life of the battery, such that both the battery and fragrance pack can be easily and simultaneously maintained.

Abstract: An air humidifier for moisturizing air in a dry treatment device for a photographic material comprises a housing having inner walls and provided with at least one air aspiration openng and at least one air discharge opening, a moisturizable element arranged in the housing, a unit for blowing air through the moisturizable element and then through the air discharge opening to a space to be moisturized and also located in the housing, the moisturizing element being formed as a rotatable disc arranged before the air discharged opening and provided with rotary drive unit for its rotation, a light protective plate arranged between the moisturizable disc and the unit for blowing air and at least locally spaced from the inner wall of the housing so as to form throughgoing air passages, and light separating parts provided behind the throughgoing air passages and before the moisturizable disc.

Abstract: An aerator of this invention comprised of a housing, a motor driven cylindrical tube having an open distal end extending through the housing, and propeller blades attached to the distal end of the cylindrical tube. The surrounding ambient air enters the housing and is compressed by pairs of opposing compression blades located therein, with the compressed air being drawn through inlet slots into a central conduit formed by the cylindrical tube, and injected into the water through the open distal end thereof. The aerator may also have optional feed vanes to direct the compressed air through the inlet slots, and fixed fins to redirect the flow of the water past the propeller blades.

Abstract: Odor control product dispenser includes a cabinet having a removable front cover for directly accessing both an upper fan compartment and a lower product compartment from the front. A fan in the fan compartment draws air in through a fan shroud surrounding the fan and directs the air downwardly into the product compartment for flow across an exposed surface of the odor control product in the second compartment and subsequent discharge through air vents in the front and sides of the cabinet. The odor control product is contained in a well in one end of a disposable container. Within the well are a plurality of circumferentially spaced pinwheel type baffles that increase the turbulence of the air flowing across the product as the product evaporates to accelerate the rate of evaporation as the product loses its potency (effectiveness) with age.

Abstract: A single assembly of an air processing structure member for air cleaning and humidifying, and an electrochemical reactor which activates a gas alarm for human safety upon detection of a predetermined dosage of gas, such as for example a fatal dose of a gas such as carbon monoxide, and which detoxifies the gas.

Abstract: An improved odor control device including a source of deodorizing olfactory stimuli, a squirrel cage fan for circulating air carrying the stimuli, an electronic circuit providing a visual indicia relating to the status of the power source. A secondary circuit controls indicia means for indicating the elapse of a predetermined span of time from initilization of control of one such span of time for the purpose of alerting the user to examine and/or replace the olfactory stimuli.

Abstract: A fluid pressure control valve and a fluid control system (such as for beverage dispensing) with such a valve has a beverage passage 3, pressure fluctuations in which are detected by a diaphragm 17 to displace a sensing member 15 axially against spring loading 23. Spring 23 reacts on thrust member 22 which is adjustable axially through a cam mechanism 25/26 to vary the biasing force of spring 23. A valve member 20 spring loaded at 21 relative to thrust member 15 normally closes an exhaust port 19 to an air or other gas passage 5 through which gas passes under pressure to be injected into the beverage from passage 3. An increase in beverage pressure in passage 3 displaces sensing member 15 to increase the spring biasing 21 on the closure member 20 and reduce the proportion of air which can escape to atmosphere from passage 5 through exhaust port 19 to provide an increase in air flow into the beverage.

Abstract: An apparatus and method of washing air is illustrated wherein a plurality of circumferentially spaced nozzles are positioned for directing a wash water spray across an air flow generated by a fan positioned at the entrance end of a housing for pushing air through the spray and an eliminator section.

Abstract: An apparatus for freshening air within confined spaces such as the driver or passenger compartment of vehicles, or rooms within buildings, includes a housing which has an elongated cylindrical rear section adapted to plug into a standard cigarette lighter socket of the type commonly found in vehicles. An electric motor within the front section of the housing contains a propeller fastened to its shaft, the motor being powered through electrical contacts protruding through the rear section of the housing and contacting complementary contacts within the socket. A perforated dome-shaped cover removably fastenable to the larger diameter front section of the housing containing the propeller has a concave interior space adapted to hold a disposable scent producing an odor absorbing perforated disc.

Abstract: A aromatizing device for an air compressor which is mounted either in the compressor inlet or the feed tube between the compressor tank and pneumatic machinery. The air flows through a solid or liquid aromatizing agent in a chamber so that the agent is entrained therein to mask odors. The flow passage may be in parallel to the main passage and controlled to pass air and entrain agent for a predetermined time only following operation of the compressor.

Abstract: A method and apparatus for nebulizing a liquid by operating an ultrasonic generator while submerged in a pool of the liquid to be nebulized to produce a spout of intensely-agitated liquid spouting upwardly out of the surface of the liquid pool. A jet of heated gas is directed to impinge the spout at an angle to the spout axis and with sufficiently high velocity to deflect the upper portion of the spout laterally of its base at the liquid level and thereby to impart an arcuate trajectory to the spout. The rate of nebulization from the spout is thus increased by: (a) the increased area of contact of the spout, because of its arcuate trajectory, with the gas in the jet; (b) the increased rate of contact of the spout with the gas in the jet because of its high velocity; and (c) the reduced disturbance to the formation of the spout at the spout base because of the shifting laterally with respect to the spout base of the fall-back into the pool of larger liquid droplets from the spout.

Abstract: A heating and cooling system for improving the environment in buildings having a large open area, such as poultry buildings, utilizes an electronic ignition to control the temperature and humidity environment. The electronic ignition controls, in a pulsating fashion, the flow of gas feeding a pilot and burner and electrical powwer feeding electro-mechanical relays powering an assortment of blower, circulating fans, as well as a water pump used to distribute water to a water misting cooling arrangement coupled to a main blower and circulating fans to aid in cooling a building. The system includes a set of emergency cooling fans, thermal shut-down switch activates an alarm device to assure a safe and controlled environment in the building.

Abstract: A hospital room humidification system operated from an outside source of pressurized oxygen and/or other gas for increasing the humidity of the ambient air in the room. The humidification system includes a collapsible bag for containing a quantity of water in a condition sealed from the environment of the room, an atomizing nozzle formed with separate liquid and gas passageways, a first adapter for coupling the atomizing nozzle to the water containing bag, and a second adapter for selectively coupling the atomizing nozzle to the outside pressurized gas source. The atomizing nozzle is operable for causing the pressurized gas flow discharging from the air passageway to break the flow of liquid discharging from the liquid passageway into fine liquid particles and to directly dispense such particles into the air of the room in the form of a mist and in a manner which significantly increases the humidity of the ambient air in the room.

Abstract: The present invention is an ultrasonic atomizing apparatus which atomizes water supplied into an atomizing chamber from a water tank disposed on top of a case, by means of ultrasonic waves. The apparatus blows out the mist produced by atomizing the water in the atomizing chamber. The interior of the case is partitioned into two sections by a vertical partition wall. The atomizing chamber is formed in one of the sections. An atomizing unit is attached to the bottom wall of the atomizing chamber. An electric fan and a power transformer are disposed vertically in the other section of the case.

Abstract: A self-contained battery-powered room deodorizer including a housing having an inlet portion through which ambient air is drawn into the housing by means of a battery powered fan. The air is passed about a quantity of vaporizable material contained within the housing, and then discharged therefrom into the ambient air carrying the vaporized portion of the product therewith. A replaceable deodorizing material containing cartridge is positionable within the housing, and provides a support well for supporting a replaceable battery, such that the deodorizing material and battery may be separately replaced when either of these items has become expended.

Abstract: A humidifier unit for use with a refrigerated display cabinet having a cooled air passage includes a body adapted to be mounted on an upper surface of the refrigerated display cabinet, a horizontally elongate atomizing water tank disposed in one side of the body and having a plurality of ultrasonic vibrators mounted on a bottom thereof and arrayed in a longitudinal direction, an air blower disposed in an opposite side of the body for supplying air drawn from a suction port into the atomizing water tank, and pipes angularly movably mounted on the atomizing water tank in coaction with the ultrasonic vibrators, respectively, for transferring a mist generated by the ultrasonic vibrators in the atomizing water tank and air from the air blower into the cooled air passage of the refrigerated display cabinet.

Abstract: This is a device for aerating water comprising (1) a fan within a pumping chamber for drawing air through an intake port and forcing air out an exhaust port therein, (2) a fan enabling means located outside the pumping chamber for moving the fan so that air is drawn through the intake port and out the exhaust port, (3) a means for insulating the pumping chamber from the heat created by the fan enabling means, and (4) a means for dispersing the air flowing out of the exhaust port and into water.

Abstract: A supersonic humidifier with a reduced number of components has a centrifugal ventilator fan contained in a casing which is not separately constructed but unistructurally formed on the lower surface of the housing. The fan is connected to a motor through a board having an air intake opening and the bottom surface of the casing is open. The bottom cover of the housing is designed to sealingly close the bottom surface of the casing.

Abstract: Improved evaporative cooling apparatus. The apparatus creates a cool microclimate at the skin and fur of an animal by directing a flow of evaporatively cooled air over the animal and by wetting the coat of the animal and directing a flow of air over the animal to evaporate water therefrom.

Abstract: An apparatus and method for handling carbon dioxide and excluding it from contact with the atmosphere while carbonating and storage, transfer, and dispensing of the carbonated beverage. The apparatus includes one or two vessels and a valve assembly for each vessel. Each valve assembly has a pressure relief valve and an outlet tap, which are normally closed to isolate the interior of the vessel from the atmosphere, and a pump for transferring and dispensing air and liquid from or to its vessel, all without bringing the carbon dioxide in contact with the atmosphere.

Abstract: A bath 10 is provided with a plurality of air nozzles 17. Air is supplied to the nozzles to bubble through water in the bath. To ensure that water does not remain in the nozzles after use of the bath, means 83,85 responsive to the passage of water from the bath is arranged to activate the air supply means 81 after water has left the bath to blow any such water out of the nozzles 17. The responsive means may include a time delay 85 so that the air supply means is not activated until a period after the passage of water from the bath.

Abstract: A fog generator comprises a duct which is preferably vertical and very tall, an air mover for moving air down through the duct, an air director which includes a spout to direct the air emerging from the duct in a substantially horizontal stream in a chosen direction away from the duct and a fog generator which generates a fog into the moving air preferably after the air has left the spout. The spout is preferably rotatable in a horizontal plane. The invention enables a generated fog to be placed where required by the air stream in which it is entrained rather than relying on natural wind drift.

Abstract: A heat exchanger is disclosed having a coil positioned between an outer casing member with a bottom having a sump formed therein and an inner casing member containing a rotatable shaft to which a fan is mounted. The fan has a first stage or set of blades which pushes air from the outside down over the coils and a second stage or set of blades having a pitch opposite the first set for pulling the air up through the inner casing member to exhaust. A distributor having a pump which operates on centrifugal force is also provided which draws a liquid heat transfer medium preferably water from the sump and rotates with the fan blades to effectively "sling" the medium over the coils as the fan rotates.

Abstract: The efficiency of a spray-type scrubber in removing pollutants from gas flowing through the scrubber is improved by applying high frequency pulsations to the gas flow. The pulsations may be applied by a bladed rotor, the blades of which cut across the gas stream in a gas supply duct leading to the scrubber inlet, the rotor being harmonically tuned with a fan which draws the gas through the scrubber.

Abstract: A spray booth that provides an improved, more uniform circulation of air past the operator and workpiece and a more effective cleaning of the air of oversprayed particulates. A plurality of water washes are utilized in the air cleaning section of the spray booth. The spraying section includes an open-faced front user portal with a grated flooring. The cleaning section includes three water washes. The first water wash underlies the grated flooring and has a spillway that slopes downward from the front of the portal towards the rear. The second water wash is disposed at the rear of the spraying section and includes a plurality of baffle surfaces that extend across the width of the spraying section from the ceiling toward the spillway, with the bottoms of the baffle surfaces and the surface of the spillway defining a space therebetween.

Abstract: A perfume dispenser particularly suitable for cars, is insertable in a housing provided in the front panel or dashboard of a car. It comprises a structure formed by a plate or front panel, with its perimetric border rounded. On the surface of the plate have been cut on one side orifices in which are housed respectively a switch and a pulsator, and on the opposite side, an orifice of greater diameter. From the edge of the orifice an extension forms a cylindrical housing provided with an internal wall; divided into two zones by an intermediate transversal wall provided with a broad central orifice. In the zone of the internal wall in the rear of the transversal wall have been cut two broad rectangular notches in diametrically opposite positions, so that the zone of the internal wall in front of the transversal wall has two broad rectangular notches in diametrically opposite positions. The cylindrical space defined by the transversal wall and the zone in front of the internal wall contains the perfuming product.

Abstract: A system for emitting, in sequence, a plurality of different scents includes a plurality of holders for scent-bearing chips; a mechanism for propelling these scents from a system; a mechanism for conveying, selectively, any desired scent holder into operative relation with the propelling mechanism; and a mechanism for actuating the propelling mechanism to propel scent from any desired scent holder in response to a programmed, predetermined sequence of scents of predetermined duration.

Abstract: The invention comprises a reservoir for containing water, and a bubble tank which holds water for forming bubbles. A bubble generator, rotatably supported and positioned in contact with the tank water, mingles water and atmospheric air such that copious bubbles are formed when the generator is rotated. The water in the bubble tank is maintained at a substantially constant level by a feedback system which draws replacement water from the reservoir as the tank water is evaporated. A blower moves atmospheric air to the erupting bubbles to hasten evaporation and propels the moistened air into the local environment.

Abstract: A transaction processing enclosure for housing of electronic data processing equipment and the like, comprising a frame rack assembly formed of hollow conduit support members, arranged at spaced intervals to provide a unitary support structure adapted to receive and store electronic data processing equipment and the like; the hollow support members being interconnected to permit distribution of a fluid thereto with emission therefrom along the course of the hollow support members into the enclosure in combination with a turntable mounted to support the frame rack assembly and affect rotation thereof within said enclosure.

Abstract: A forced draft crossflow evaporative heat exchange has a turbulent air-liquid interchange zone downstream from the air propulsion means and intermediate the air propulsion means and the heat exchange media. The media is inclined so the upper portion is closer to the air propulsion means than the lower portion.

Abstract: An apparatus is provided for dispensing volatile substances which includes a housing, and at least one piezoelectric blower. Each blower includes a piezoelectric element having a first end mounted to the housing and a second end free, and a generally planar impeller blade connected to the free end of the piezoelectric element and having its distal end unconstrained by the housing. A frame is attached to, or provided as an integral part of, the housing and is located in proximity to the distal end of the blade. The frame is adapted to detachably mount a replaceable substrate cartridge containing a volatile substance. In use, a voltage is applied to the piezoelectric element for oscillating its free end perpendicular to its plane at or close to resonance and propagating a traveling wave along each blade to generate and shed vortices at the distal end of the blade which contact the substrate cartridge, thereby dispensing the volatile substance to the surrounding atmosphere.

Abstract: An aerator to expedite the breathing time of wine just before serving including a housing containing a motor driven diaphragm air pump; a recess provided in one end of the housing for receiving the neck of a bottle of wine to be aerated, and a tube extending from the pump into the wine within the bottle.

Abstract: A transaction processing enclosure for housing of electronic data processing equipment and the like, comprising a frame rack assembly formed of hollow conduit support members, arranged at spaced intervals to provide a unitary support structure adapted to receive and store electronic data processing equipment and the like; the hollow support members being interconnected to permit distribution of a fluid thereto with emission therefrom along the course of the hollow support members into the enclosure in combination with a turntable mounted to support the frame rack assembly and affect rotation thereof within said enclosure.

Abstract: A device for evaporative cooling of large masses of air suitable for cooling structures utilized to shelter commercial animals, such as cows and the like, includes a member having a gas inlet, a gas outlet and a hollow interior extending between the inlet and outlet. A fan and motor are associated with the inlet for moving air into the inlet creating an air stream within the interior of the member. A plurality of vanes are located within the interior of the member for introducing a torsional component into the air stream passing through the member such that the air stream moves through the member in a spiral pathway. As the air stream spirals through the member, a spray of water is introduced into the member. The spray becomes incorporated into the spirally moving air stream to reduce the temperature of the air stream. After exiting out of the outlet of the member, the air stream is directed toward the animals of commercial interest to cool both the animals and their immediate surroundings.

Abstract: A jet control type carburetor according to the present invention includes an intake pipe having an intake passage formed in an inner wall thereof, the intake passage allowing an intake air to flow therethrough; a venturi provided in the intake pipe, for controlling flow velocity and pressure of the intake air in the intake passage; a fuel nozzle opened into the intake passage and connected to a fuel supply source through a fuel passage for sucking the fuel within the intake passage from the fuel nozzle in order to introduce the mixture of air and fuel within the intake passage; a throttle valve provided downstream of the venturi, for controlling the flow rate of the mixture of intake air and fuel; a control fluid nozzle opened into the intake passage and connected to a fluid supply source through a control fluid passage for jetting the flow of the control fluid to the fuel spurted from the fuel nozzle to afford the kinetic energy of the control fluid to the fuel, and a throttle means provided upstream of the

Abstract: Means for increasing the efficiency of effluent discharge from a cooling tower or other stack by means of introducing gaseous fluid streams through at least one or more vertical slots positioned about the periphery of a chimney of said tower or stack wherein said slots are capable of directing said fluid streams tangentially within the periphery of said chimney to create a vortex within said chimney. Each of said slots extend at least a portion of the height of said chimney, and preferably extends from above a fill at the base of said chimney to approximately the mouth of said chimney. Means are provided for introducing cooling gaseous fluid streams into and through said fill to a cavity within said fill which also contains heat transfer or other effluent constituent removal surfaces or passages or other means to provide heat or other effluent constituent dissipation. The upper limit of said cavity is bounded by a floor, which defines the demarcation between said chimney and said fill.

Abstract: An evaporative dispenser is disclosed for emitting a vaporized material into the ambient. A battery powered, motor-driven fan forces air through the dispenser housing and across a material reservoir to evaporate and entrain material therein prior to being discharged from the housing. A supply container is supported directly on a reservoir lid and comprises structure which cooperates with the housing to direct the air flow across the reservoir. The supply container also comprises a battery nesting recess which affords compact packaging of the components within the housing. A transparent viewing window is provided for easy viewing of the level of material in the reservoir.

Abstract: A device for vaporizing a fluid desired to be introduced into the air by forcibly moving air over the surfaces of an absorptive material which has been impregnated with the fluid desired to be distributed. The device comprises a housing adapted to be attached to a wall or other surface and utilizes a liquid material contained within a hollow container which is so positioned within the housing that the liquid flows into a cup-like member within which a layer of the absorptive material is disposed. The cup-like member includes at least one opening over which air is caused to pass and thereby evaporate the liquid from the absorptive material. A battery powered fan is so positioned as to cause the air to flow past the opening in the cup member and thereby evaporate some of the vaporizable fluid. The entire assembly is contained within a housing which has an air inlet and an air plus vapor outlet, and includes means for properly positioning the several elements in the proper relationship.

Abstract: A shroud, including a shield placed on either side of an evaporation pad, increases the length of travel air transit time within the pad. Pressurized water, emitted in jets from a plurality of orifices spaced along a manifold, is directed against a diffuser for dissipation and dissemination to the upper edge of the pad. The pad is wetted intermittently as the result of a timer controlling distribution of the water. An auxiliary reservoir, in combination with relocatable pump, inlet valve and pad frames, provide for alternate downdraft as side draft operation. An elongate, arcuate baffle downstream of the evaporative pad alters the direction of the air stream to flow in a substantially opposite direction.

Abstract: This invention relates to a dust control device enabling dust to be wetted with water mist.The device according to this invention has a water impeller 2 situated in a tunnel 11, 12 behind the fan impeller 1 when viewed upon in the air flow direction in the tunnel 11, 12.The water impeller 2 has a water passage 13 with a suitable hole 5 on the circumference, said hole being situated transversally relative to the water passage 13 and being inclined at an angle .alpha. to the radial axis of the water impeller 2 opposed to the rotation of the said water impeller 2.The described device is particularly useful in underground coal mines in places where coal is loaded from one conveyor onto another.

Abstract: The sealed, compact air-conditioner employs the evaporation of water and permits the lowering of the ambient temperature in cabs of machines or vehicles with no compressor or refrigerating circuit being required.It comprises a turbo-fan unit directly mounted against an evaporation chamber. Inside the latter, a box facing the air inlets conditions the air distributed toward water injection nozzles and ensures the seal on the upstream side of the chamber. On the opposite side, the outlet for the humidified fresh air is disposed in the upper part and is preceded by a droplet-separating medium. The evaporation chamber, associated with the deflector, constitutes a water recovery pan. It is continuously drained by a drain located in the lowermost point thereof.The air-conditioner may be employed for the air-conditioning of agricultural, public works, handling, or cross-country machines or vehicles, such as tractors, harvester-threshers, shovellors or loaders.

Abstract: In a constant-pressure carburetor having a fuel/air mixing chamber (3) which operates under reduced pressure, fuel feed means through which the fuel is drawn into the mixing chamber (3) from a float chamber (6) as required, an air inlet duct (1) having an automatically vacuum controlled air intake valve (2) upstream of the mixing chamber (3), and a suction duct having a driver actuated throttle member (4) downstream of the mixing chamber (3), the fuel feed means includes a fuel atomizer nozzle (5) having a central fuel supply passage (14) surrounded concentrically at its outer end by an annular constricting atomizing air outlet (15) whereby the velocity vectors of fuel and atomizing air at the nozzle outlet differ in magnitude and direction, and proportioning means for regulating the flow of fuel through the central passage (14) of the nozzle (5) and including a member (11) which is movable towards and away from the inlet (10) to the passage (14) by a control (12) operated in response to the output (A) from a

Abstract: A superior room air freshener is disclosed having a short distance of travel from point of entry to egress for the delivery of a volatile liquid refreshener. The device is battery operated and can be wall mounted or displayed on a table.

Abstract: An evaporative dispenser is disclosed for emitting a vaporized material into the ambient. A battery powered, motor driven fan forces air through the dispenser housing and across a material reservoir to evaporate and entrain material therein prior to being discharged from the housing. A supply container is supported directly on a reservoir lid and comprises structure which cooperates with the housing to direct the air flow across the reservoir. The supply container also comprises a battery nesting recess which affords compact packaging of the components within the housing. A transparent viewing window is provided for easy viewing of the level of material in the reservoir.

Abstract: A carburetor device for an internal combustion engine is disclosed. The device includes a well adjacent to the intake manifold for holding a quantity of liquid fuel. Perforated tubing is in the bottom of the well, and air under pressure is selectively supplied to the tubing to froth the liquid fuel and produce fuel vapor. The amount of the tubing receiving air under pressure is varied in accordance with fuel demand. The fuel vapor is mixed with ambient air and directed into the intake manifold. The system includes a storage tank for providing the air under pressure, and a pump to supply air to the storage tank.

Abstract: A humidifier comprises a conduit (20), a rotatable fan assembly (30) mounted in the conduit (20) for causing an air stream to flow through the conduit (20), and a counter-rotatable water slinger assembly (40) mounted coaxially with and downstream of the fan assembly (30) for centrifugally ejecting water into the conduit (20). A cylindrical mist-forming member (60) affixed to the fan assembly (30) for rotation therewith extends downstream therefrom so as to surround the water slinger assembly (40). Water ejected centrifugally from the water slinger assembly (40) is sheared by the mist-forming member (60) into a mist of fine water droplets, which become entrained in the air stream passing through the conduit (20).

Abstract: A battery-powered apparatus, for inducing air flow past a product capable of being vaporized, includes a compact housing that comprises a hollow outer shell and a hollow, generally cylindrical inner shell, having an axis, on which the operating components of the apparatus are supported. The inner shell is mounted with the outer shell by a hinge to pivot substantially on the axis between closed and open positions. In the closed position the inner shell compliments the outer shell to define an enclosed space and shield the apparatus components. In the open position, the inner shell is nested within the outer shell to expose the apparatus components. The product and a battery for powering the apparatus may be assembled into a cartridge formed to be received in the apparatus housing. Electrical battery contacts and a support for the cartridge in the housing are also disclosed.

Abstract: A battery-powered apparatus, for inducing air flow past a product capable of being vaporized, includes a compact housing that comprises a hollow outer shell and a hollow, generally cylindrical inner shell, having an axis, on which the operating components of the apparatus are supported. The inner shell is mounted with the outer shell by a hinge to pivot substantially on the axis between closed and open positions. In the closed position the inner shell compliments the outer shell to define an enclosed space and shield the apparatus components. In the open position, the inner shell is nested within the outer shell to expose the apparatus components. The product and a battery for powering the apparatus may be assembled into a cartridge formed to be received in the apparatus housing. Electrical battery contacts and a support for the cartridge in the housing are also disclosed.

Abstract: A method and apparatus for the preparation and control of an air-fuel mixture in which compressed air is divided into two streams, one of which is at a pressure taking into account engine load and existing atmospheric conditions and serves for supplying and sucking fuel and its preliminary atomization, the second stream serving for successive atomizations of fuel and correction of discharge while preventing secondary coagulation. The mixture is fed to the engine intake manifold, where it is further mixed with air sucked by the engine.

Abstract: An improved snowmaking apparatus comprising a water source and an atomizing fan wherein during a snowmaking operation water is placed onto the rotating blades of an atomizing fan, the water exiting from the trailing edges of the blades as droplets, the improvement comprising providing a ducted fan behind the atomizing fan, the ducted fan during operation blowing ambient air towards and over the atomizing fan.