Abstract: Auxiliary end heating devices on an elongated, heated hot melt distribution manifold body assist in maintaining uniform temperatures throughout all portions and passageways of the manifold body. The heating devices preferably take the form of thick film electrical resistive heaters of plate-like construction. The end heaters are on their own control circuit separate and apart from the circuit for other heaters for remaining portions of the manifold body. Special isolating slots are formed in lower corners of the manifold body between supporting standoffs and overhead melt passageways in the manifold body.

Abstract: An aerosol generating device generates an aerosol having a desired particle size by passing a liquid through a flow passage heated to convert the liquid into a vapor. The flow passage includes an outlet section that controls the exit velocity of the vapor and produces an aerosol with a desired particle size. The aerosol generator can be incorporated in a hand held inhaler, and the liquid can include a medicament, which is delivered to a targeted portion of the lung using the inhaler.

Abstract: Apparatus for cleaning or de-icing a vehicle window, including a reservoir for containing therein a washing fluid, a vessel having an inlet through which the washing fluid is received from the reservoir and an outlet through which the fluid is discharged for cleaning a vehicle window, and a first heating element disposed in the vessel for heating the fluid in the vessel, characterized by an auxiliary heating element being disposed in the vessel for heating the fluid in the vessel, wherein the auxiliary heating element is disposed at a bottom portion of the vessel and is operative to heat a quantity of fluid which is not necessarily sufficient to cover the first heating element.

Abstract: The invention is based on a heatable washer system (10) for vehicle windows having at least one spraying nozzle (16) that is acted upon with washer fluid via a pressure valve (38), and the housing (40) of which is connected via a water line (14) to a water pump (20, 58) that delivers washer fluid from a reservoir (12) to the spraying nozzle (16), wherein a heating device (18) is located in the reservoir (12). It is proposed that the water line (14) comprise two passages (26, 28), one (26) of which is connected to the pressure side of the water pump (20), and the other (28) of which is connected to the reservoir (12).

Abstract: An injection vaporizer has a reservoir for liquid to be vaporized and a delivery conduit connected to the reservoir with an outlet for injecting liquid to be vaporized into a gas space, formed by a flow-through chamber. A pumping system is operable to transfer liquid from the reservoir to the outlet. A heater supplies thermal energy into the delivery conduit. A pressure generator generates an elevated delivery pressure within the delivery conduit and is operable with the heater to establish a heated pressurized liquid at the outlet.

Abstract: A snow making method and apparatus wherein water (3) in flexible hoses (2), within a cooling medium (1) is converted to snow and/or ice crystals. The hoses (2) are cyclically inflated and deflated to cause the crystals to be dislodged from the inner wall surfaces of the hoses (2). When the hoses (2) are full of crystals, the crystals can be discharged by pumping or blowing.

Abstract: The present invention prevents coolant from leaking out of a valve (23) after a feed pump (4) stops feeding the coolant, and diminishes a time-lag between the onset of feeding the coolant and mist generation, when the feed pump (4) starts feeding the coolant again. In the machine tool of this invention, the coolant is fed from a feed pump (4) into a mist generating device (13) provided on the tip of a spindle (8) by way of a feed line (7), and a valve (23) is provided at an inflow part for coolant of the mist generating device (13) to be closed when the coolant pressure within the feed line (7) lowers below a fixed level. A coolant sucking and delivering (2) sucks a fixed amount of coolant in the feed line (7), when the feed pump (4) stops feeding the coolant. On the other hand, the device (2) feeds a fixed amount of coolant into the feed line (7), when the feed pump (4) begins feeding the coolant.

Abstract: A nozzle beam for descaling or cooling metal strand material, particularly rolling stock, includes an inlet for the product treatment liquid and an additional inlet for a device cooling liquid, an outlet for the device cooling liquid, and a switching member for opening and closing the device cooling liquid outlet. The switching member is automatically switchable through a device cooling liquid pressure which controls the state of operation of the nozzle beam.

Abstract: A high efficiency method for atomizing a liquid fuel. A liquid fuel is caused to flow into and through a pre-atomization chamber. A first portion of a pressurized atomizing fluid is introduced into the liquid fuel flowing through the chamber so as to at least partially atomize the fuel and provide a first admixture containing atomized fuel and atomizing fluid. The first admixture is delivered from the chamber and caused to flow into and through a first elongated port in an atomizing tip connected to the chamber. A second portion of pressurized atomizing fluid is directed into and caused to flow through a second elongated port in the tip. The first admixture from the first port is introduced into the second port and caused to become intimately intermixed with the second portion of pressurized atomizing fluid so as to further atomize the fuel and provide a second admixture comprising atomized fuel and atomizing fluid.

Abstract: Apparatus (20) for cleaning a window (24) of a vehicle (22), including a vessel (28), having an inlet (32) through which a washing fluid is received from a reservoir and an outlet (34) through which the fluid is discharged for cleaning the window. There is a heating element (50) for heating the fluid in the vessel, which element preheats the vessel before the washing fluid is received therein, whereby at least an initial quantity of the fluid is rapidly heated and discharged from the vessel.

Abstract: The invention is related to a coating delivery system that includes at least one pressure vessel operable in sealed and unsealed conditions, a deliverable substance including a coating component interspersed with at least one of liquefied carbon dioxide and supercritical carbon dioxide, and a pressurizing fluid. The deliverable substance is disposed in a first pressure vessel of the at least one pressure vessel, and the pressurizing fluid directly exerts a pressure on the deliverable substance to effect transport thereof when the pressure vessel is in the unsealed condition. The deliverable substance may be spray discharged.

Abstract: A system for stripping an optical fiber includes a source of air and means for generating very short bursts of air. A heater heats the bursts of air to a temperature sufficient to remove the outer coating from an optical fiber, while maintaining the air isolated from the heat source. A single burst of heated air removes the outer coating of an optical fiber, within less than about one second. A series of closely spaced bursts or a prolonged burst of heated air may be used to remove an expanded length of fiber coating. Stripping may include translation of the fiber or the heater or portions thereof. The stripper may be configured to strip several loaded fibers or a single fiber.

Abstract: The present invention involves controlled atomization of liquids for various applications such as part/droplet seeding for laser-based measurements of flow velocity, temperature, and concentration; flame and a plasma based elemental analysis; nano-powder production; spray drying for generation of small-sized particles; nebulizers in the production of sub-micron size droplets and for atomizing fuel for use in combustion chambers. In these and other atomizer applications the control of droplet and/or particle size is very critical In some applications extremely small droplets are preferred (less than a micron), while in others, droplet diameters on the scale of several microns are required. The present invention has the flexibility of forming droplets within a particular range of diameters, wherein not only the size of the average droplet can be adjusted, but the range of sizes may be adjusted as well. The atomizer (4) itself is in the form of a heated tube (44) having an inlet end (48) and an outlet end (50).

Abstract: The invention relates to a device for spray-drying solvent-containing compositions, to a method for spray-drying solvent-containing compositions, and to the uses of the inventive device and of the inventive method, especially for producing powder washing and cleaning agents.

Abstract: A gas mixture of dry steam and nitrogen gas serving as carrier gas is blown into a hot water mist injection port for rendering the nitrogen gas serve as a medium absorbing latent heat of condensation, thereby smoothly progressing condensation of water vapor and efficiently forming hot water mist. The water vapor is condensed in the hot water mist injection port formed by a cylindrical pipe for supplying latent heat of condensation to the nitrogen gas and dilating the same, thereby accelerating the flow of the hot water mist and spraying the hot water mist to a substrate from the hot water mist injection port at a high speed. Small droplets contained in the high-speed hot water mist have high kinetic energy and high thermal energy, for exhibiting a large colliding effect and a high activation effect with respect to small contaminants adhering to the substrate. A substrate cleaning apparatus capable of spraying hot water mist attaining a high cleaning effect to a substrate is provided.

Abstract: A spray bar having a plurality of laterally spaced nozzles mounted in a row on a header block for discharging a row of liquid spray patterns, and a method of manufacture. The spray bar header includes a plurality of separate plates, each formed with a plurality of nozzle-receiving apertures and with one or more faces of adjacent interfacing plates being formed with grooves which define fluid passages for the supply liquid, atomizing and nozzle-actuating air, and heating fluid. The plates preferably are electroplated/electropolished for thorough and efficient cleaning upon disassembly.

Abstract: An apparatus and method for applying glue is provided in which glue and water are selectively provided to a spray nozzle wherein the water supplied to the nozzle is used to remove any residual glue present after a gluing application. In one preferred embodiment, an outer conduit surrounds an inner conduit defining a first channel therebetween. The inner conduit supplies glue and the first channel supplies water. The outer conduit and the inner conduit are slidably engaged with each other. At least one spray nozzle is in communication with an outer conduit orifice. Slide conduit orifice valving provides selective communication of the outer conduit orifice with an inner conduit orifice and the first channel for selectively supplying glue, water, or neither to the spray nozzle.

Abstract: The automatic semi-conductor condensate flower watering device consists of a condensate part, a heat radiating part and a soil moisture control part, in which the said condensing part is composed of a semi-conductor cooling block with a refrigerating and heat-conducting base plate and a heat radiating and conducting base plate attached to both of its sides. On the said refrigerating and heat conducting base plate is installed the condensing fins and on the heat radiating and conducting base plate is installed the heat radiating fins. The said heat radiating part includes radiating fins and an outlet channel that is formed by the radiating fins. The gap between the said condensing fins is less or equal to 1.5 mm. On the refrigerating and heat conducting base plate is installed a water wiper.

Abstract: In a fuel injector, a valve member in a hollow cylindrical shape having a bottom is enclosed and supported in a magnetic cylinder defining a fuel passage to reciprocate in an axial direction. At least two of the ceramic heaters having an arc shape in cross section are arranged on the outer periphery of the magnetic cylinder in a circumferential direction to be a cylindrical shape. The ceramic heaters are pressed toward the outer periphery of the magnetic cylinder by a heater holder with a small resiliency. The ceramic heaters are tightly fitted on the outer peripheral surface of the magnetic cylinder without being damaged. Therefore, heat of the ceramic heaters is conducted to the magnetic cylinder and fuel in the magnetic cylinder is effectively heated.

Abstract: A melter, mixer and applicator system for applying coating or sealing compositions is disclosed. An internal combustion engine, such as a diesel engine, is used to provide the motive force necessary to operate many or all of the components of the system. A tank surrounded by an internal heating system is provided for melting a first material, such as asphalt. An insulated cabinet is provided and heated from heat generated by the internal heating system. The plumbing configuration for the system is disposed within the heated cabinet for mixing the material heated within the tank with an additional material fed to the plumbing configuration by a proportioner pump. The output of this mixture serves, through a heated hose, as one of the inputs to the applicator, which is preferably a plural component spray gun. The other input to the applicator is another material fed directly from the proportioner pump.

Abstract: A coherent material is formed on a substrate (10) by providing a precursor suspension (14) in which particulates are suspended in a carrier fluid, and directing the precursor suspension (14) at the substrate (10) from a first source (12). Generally contemporaneously with application of the deposited precursor suspension (14) to the surface, hot gases, e.g. hot gases produced by a flame (16), are directed at the substrate (10) from a remote second source (18) to fuse the particulates into the coherent material.

Abstract: An uncontrolled heat pipe (20) is used in a valve seat device (19) for transferring the waste heat from the exhaust gas acting on the metering valve (15) to a condensation zone (21) which is situated in an environment which is at a lower temperature, whereby the metering valve is cooled sufficiently to prevent a chemical change of a reducing agent which otherwise can be caused by high temperatures.

Abstract: An apparatus preventing adhesion, growth and freezing of ice pieces, which tend to happen with quality artificial snow such as fine flake snow and powder snow. The rotary valve 1 to feed artificial snow at a constant rate includes: impeller rotary shaft 3 which is placed in cylindrical casing 2 along the length direction of the cylinder; a plurality of impellers 4 which are arranged around impeller rotary shaft 3 at an equal distance from each other in the radial direction; opening 25 for loading of artificial snow which connects the top portion of a wall of cylindrical casing 2 with the top portion of a housing; opening 7 for receiving compressed air which is formed on casing side wall 6 to receive said compressed air from a blower; and an exit 10 for artificial snow formed at the other casing side wall 9 to blow out artificial snow, cut in a given amount, with compressed air.

Abstract: A method and apparatus for measuring and controlling the temperature of fuel inside a fuel injector is provided. A first resistive element having a resistance that varies with temperature is positioned proximal the fuel within a fuel injector and a second resistive element having a known resistance is placed in series with the first resistive element and connected at a node. When a known voltage is applied across the resistor-divider network, the voltage generated at the node corresponds to the temperature of the fuel within the fuel injector. The first resistive element may also be used to heat the fuel within the injector to a predetermined temperature. Logic circuitry prevents energizing the first resistive heating element if any fuel injector coils are energized, thereby ensuring full voltage is available to drive the fuel injector coils.

Abstract: A self-contained thermo-mechanically self-opening steam head that is normally generally flush with a supporting steam room wall when not in use so as not to pose a safety hazard. The steam head has a mechanical thermostat that automatically responds to the presence of heat as from steam to move a deflector plate, which normally generally blocks a steam outlet from the head, to an open position. That open position is spaced from but closely in front of the steam outlet. This allows steam to flow out of the outlet, but the deflector plate diverts the outward steam flow to a direction generally along the supporting wall. When the steam is shut off, the thermostat cools and thereby causes the deflector plate to return to its closed, blocking position. There is no electrical wiring or connection which could pose a major safety hazard in the presence of water.

Abstract: A steam injection nozzle system for injecting steam into a combustion liner of a gas turbine for enhancing power output and efficiency of the gas turbine. The combustion liner has a plurality of dilution holes for supplying air to a combustion chamber to create turbulence. A steam manifold surrounds the combustion liner and has a plurality of steam injection nozzles, each steam injection nozzle being disposed opposite a corresponding dilution hole, without touching the combustion liner, for injecting the steam directly into the combustion liner through the dilution holes. The steam is injected without altering an existing amount of air through the plurality of dilution holes, resulting in a constant amount of air through the plurality of dilution holes independent of the amount of steam injected therein within a predetermined range of steam. The predetermined range of steam injected may be between approximately 9% and approximately 35%, inclusive, of the air flowing through the combustion liner.

Abstract: An aerosol generator includes a fluid supply which supplies fluid to a fluid passage, a main heater which heats the fluid into a gaseous state and a preheater which delivers a volume of fluid to the main heater. The preheater can be located in or adjacent a metering chamber which receives a predetermined volume of fluid, the preheater heating a portion of the fluid so as to form a vapor bubble which ejects the remaining fluid from the chamber. An outlet of the aerosol generator is arranged to receive the volatilized fluid formed by the main heater and direct the volatilized fluid out of the fluid passage. The aerosol generator can be used to generate aerosols containing medicated materials.

Abstract: A fuel injector assembly incorporating a heat exchanger and a fuel injector and being disposable in a bore in a mounting substrate such as an internal combustion engine or a hydrocarbon fuel reformer. The exchanger includes an outer wall in direct contact with the bore and also surrounds and supports the dispensing portion of the fuel injector, forming an annular plenum space therebetween. The heat exchanger has an inlet port and an outlet port communicating with the plenum space. The exchanger outlet port is connected to an inlet port of the fuel injector, such that fuel entering the fuel injector is preheated by passing first through the heat exchanger. In some applications, it may be desirable to maintain the fuel at a high pressure to prevent premature vaporization of the fuel in the exchanger and resulting vapor lock of the fuel system.

Abstract: A nozzle needle has a hollow tubular form having a closed base end. A heat transfer tube is press fitted into a first magnetic portion. The heat transfer tube surrounds an outer peripheral surface of the nozzle needle. A ceramic heater is formed as an integral cylindrical body by sintering a ceramic material together with a heat generating resistive element. A case covers the heater and protects the heater from externally applied water. An inner tube of the case is resiliently engaged with both the heater and the first magnetic portion. Heat of the heater is conducted to the nozzle needle through the inner tube, the first magnetic portion and the heat transfer tube to heat fuel inside the nozzle needle.

Abstract: The invention is based on a heatable washer system (10) for vehicle windows having at least one spraying nozzle (16) that is acted upon with washer fluid via a pressure valve (38), and the housing (40) of which is connected via a water line (14) to a water pump (20, 58) that delivers washer fluid from a reservoir (12) to the spraying nozzle (16), wherein a heating device (18) is located in the reservoir (12).

Abstract: The invention provides an improved nozzle and method for delivering a coolant stream to a location in an ambient atmosphere.

Abstract: A semiconductor chip cooling system having a body that forms a cavity configured to create a spray chamber when conformingly adjoined to a chip, or to a substrate or printed circuit board carrying one or more chips. The cooling system uses thermal inkjet sprayers to spray the chip(s) in the spray chamber with cooling fluid. The cooling system includes a combined reservoir and condenser. Liquid and gaseous cooling fluid travel or are pumped from the spray chamber to the reservoir. A controller transmits a control signal to the sprayer to cause the sprayer to spray at a rate leading to the cooling fluid being vaporized by the semiconductor device.

Abstract: A pressure washer for use by an operator. A heat exchanger has a water input adapted to connect to a water source and has a water output providing discharge water. A water pump supples water to the heat. A temperature selector is responsive to operator. A burner in thermodynamic communication with the heat exchanger applies heat to the heat exchanger and the water in the heat exchanger. The burner has a fuel input connecting a fuel source to the burner. A fuel switch selectively allows fuel from the fuel source to be supplied to the combustion chamber via the fuel input. A duty cycle timer has a uniform duty cycle and is energized when water flows through the heat exchanger. The duty cycle timer is responsive to the temperature selection switch to vary its duty cycle as a function of the operator input provided to the temperature selector.

Abstract: A self-contained thermo-mechanically self-opening steam head that is normally generally flush with a supporting steam room wall when not in use so as not to pose a safety hazard. The steam head has a mechanical thermostat that automatically responds to the presence of heat as from steam to move a deflector plate, which normally generally blocks a steam outlet from the head, to an open position. That open position is spaced from but closely in front of the steam outlet. This allows steam to flow out of the outlet, but the deflector plate diverts the outward steam flow to a direction generally along the supporting wall. When the steam is shut off, the thermostat cools and thereby causes the deflector plate to return to its closed, blocking position. There is no electrical wiring or connection which could pose a major safety hazard in the presence of water.

Abstract: Cooling gas is fed through a cooling-gas line (14) to a liquid atomizer, preferably an atomizing bell (4) in order to cool its end surface (24) configured underneath streaming coating liquid and therefore in contact with the ambient air. The cooling reduces coating deposition at this end surface or reduces the rate of layering.

Abstract: The invention relates to a spraying method and to a spray system which comprises a unit (16) metering accessory liquid into the coating-liquid's spray jet (14).

Abstract: An aerosol generator includes a fluid supply which supplies fluid to a fluid passage, a main heater which heats the fluid into a gaseous state and a preheater which delivers a volume of fluid to the main heater. The preheater can be located in or adjacent a metering chamber which receives a predetermined volume of fluid, the preheater heating a portion of the fluid so as to form a vapor bubble which ejects the remaining fluid from the chamber. An outlet of the aerosol generator is arranged to receive the volatilized fluid formed by the main heater and direct the volatilized fluid out of the fluid passage. The aerosol generator can be used to generate aerosols containing medicated materials.

Abstract: A method and an apparatus for heating or cooling material having poor thermal conductivity, especially medium-consistency fiber suspensions. The material is directed, substantially as a plug flow, at a velocity below 5 m/s (e.g. 0.1-1 m/s) through an apparatus formed by a flow channel provided with heat exchange surfaces. The flow of the material is throttled at a throttling point by a more than 30% reduction in the cross-sectional area of the channel. After throttling, the material is discharged from the throttling point in such a manner that another portion of the material contacts the heat exchange surfaces.

Abstract: A nozzle beam for descaling or cooling metal strand material, particularly rolling stock, includes an inlet for the product treatment liquid and an additional inlet for a device cooling liquid, an outlet for the device cooling liquid, and a switching member for opening and closing the device cooling liquid outlet. The switching member is automatically switchable through a device cooling liquid pressure which controls the state of operation of the nozzle beam.

Abstract: Methods and devices for repelling insects are disclosed. The methods and devices provide personal protection from insect bites and insect landings, particularly mosquito bites. The methods and devices employ insect repellents such as pyrethroids at low (parts per billion) levels. The methods and devices effectively minimize the number of mosquitoes landing on a subject properly using the devices.

Abstract: The heatable windshield washer nozzle is designed for mounting on the windshield wiper of a motor vehicle. The washer nozzle consists of a housing (1) with a connection adapter (2). This connection adapter (2) connects to a spray water hose (19) electrically heatable via cables (22) or woven wires molded into it, while the ends (23) of the heating cables (22) are electrically bridged across just before the end (24) of the hose. The housing (1) is further equipped with a chamber (5) for storing a nozzle body (6) and includes a heating plate (28) above the nozzle body (6) as well as a cover (8) for closing the chamber (5). Here the nozzle body (6) is designed as a flat chip with several channels (26) fanning outward from a central water input opening (25). In keeping with the invention, a bar (29) is formed on the rim (32) of the heating plate (28), which completely covers the surface of the nozzle chip.

Abstract: In atomizing apparatus as described herein comprises an outer cylinder having an inlet and an outlet and an inner cylinder slidably disposed in the outer cylinder moving in an axial direction. The particular inner cylinder comprises a plurality of holes therein which are exposed to a processing chamber. The holes may be axially arranged along the inner cylinder into groups having substantially the same diameter. The instant apparatus demonstrates superior processing efficiency and homogenization. A method of atomizing a desired substance with the instant apparatus is also described.

Abstract: A spray assembly for applying material to an object is provided. The assembly includes a plurality of spray nozzles each having spray openings for applying material to the object. Four nozzles are provided having two orientations each orientation with two spray widths. The assembly also includes a plurality of valves for controlling the flow of material through each of the spray openings. A manifold supports the plurality of spray nozzles and the valves and defines a feed bore and a spray bore extending between the feed bore and each of the nozzles. Water passages are integral with the manifold to regulate the temperature of the material flowing through the spray bores.

Abstract: There is disclosed a showerhead apparatus for radical-assisted deposition including a showerhead of a two-stair structure separated by a given distance, which has a first buffer for uniformly distributing a raw material gas and a second buffer for uniformly distributing a plasma gas, wherein a plasma is generated within the showerheads and the raw material gas sprayed into the plasma is constantly maintained, thus forming a uniform thin film on a wafer or a substrate.

Abstract: A fuel atomizing-injection apparatus for internal combustion engines is disclosed. This apparatus is installed between the injector of a fuel injection device and the suction manifold of an engine, and is used for promoting vaporization of fuel injected from the injector into the suction manifold, thus finally allowing the injected fuel to be more effectively and actively mixed with combustion air into mixed gas. The apparatus also improves the fuel combustion efficiency of the engine while achieving a conservation of fuel and increasing engine output power. The apparatus exhausts little harmful gases into the atmosphere, thus being unlikely to cause environmental pollution, such as air pollution. In the fuel atomizing-injection apparatus, a heater, having a heat dissipating spiral plate on its external surface, is installed between the injector and the suction manifold.

Abstract: A flow mixer apparatus and method in an injection molding system which transitions a flowing medium around an obstruction and/or a degree change in direction, said flowing medium exhibiting reduced stagnation points and substantially uniform flow characteristics downstream of the obstruction and/or change in direction.

Abstract: In the case of a washer system (9) which is intended for a motor vehicle, a delivery unit (1) is used to supply a washer nozzle (11) which is connected by means of a pipe element (10). To protect against damage at low ambient temperatures, a heating element (5) is arranged on a housing (7) of a pump chamber (3) of the delivery unit (1) and thus makes it possible for the washer fluid situated in the pump chamber (3) to be heated rapidly and in a specific manner.

Abstract: A liquid processing apparatus is provided to improve its processing efficiency, together with a liquid processing method. The apparatus is capable of both reduction in temperature-variation of a processing liquid at processing and shortening for temperature-recovery of the processing liquid. Further, the liquid processing apparatus can facilitate the establishment of respective designated temperatures for different processes and carry out different processes continuously and effectively. The apparatus includes an inner cylinder 25 to accommodate semiconductor wafers W and a chemical supply unit 50 to supply the semiconductor wafers W in an inner cylindrical chamber 23 with a chemical liquid. The apparatus further includes a case heat exchanger 90 arranged in an outer peripheral position of the inner cylinder 25 and allowing a temperature-adjustment medium to flow and a medium supplier 100 to supply the regulator 90 with the temperature-adjustment medium.

Abstract: A diffuser assembly for controlling air flow in a fresh food compartment of a refrigerator has a housing mounted to the refrigerator liner wall that covers a first air flow opening in the fresh food compartment liner. The housing has side walls and an exterior wall with a second air flow opening spaced from the liner by the side walls. An air flow passage extends between the first air flow opening and a second air flow opening The exterior wall has a first centralized opening passing therethrough and an inner surface with a recessed elongated slot. The assembly has an elongate leaf spring secured in the housing adjacent the inner surface along the recessed slot and biased away from the exterior wall. The spring has a second centralized opening aligned with the first centralized opening. The assembly has a dial diffuser with a shaft that extends through the first and second centralized openings and a shaft controlling portion extending beyond the exterior wall of the housing.

Abstract: The present invention relates generally to paving machines capable of spraying a liquid binding material in the form of an emulsion on the road surface prior to the application of a hot asphaltic bituminous concrete paving material. The paving machine including a self-propelled chassis having a hopper and a paving material accumulator on the front end for receiving paving material, a transversely extending spray bar at the rear of the chassis for spraying the liquid binding material on the surface of the road bed, a conveyor for conveying the paving material from the hopper to a discharge location to the rear of the spray bar, the conveyor including two or more conveying augers mounted in auger troughs, and auger covers from the accumulator to the discharge location, which cover reduces heat loss from the paving material.