Abstract: A compact spray gun using a single air supply port to actuate two piston valves and act as an air refinement system. An externally adjustable cartridge type packaging assembly needle piston valve seals the resin. A spool valve portion of a catalyst piston valve having O-ring seals is separable external from the piston portion. Leak detection ports are provided so the operator can easily determine when to adjust or replace the packing or O-ring seals. The catalyst piston valve controls the mixing of the catalyst and air from a second air supply port. In a preferred embodiment, the resin piston valve controls a valve which provide air to the chopper system simultaneously with spraying of the resin.

Abstract: A gun having a gun body which includes a housing for component inlet and outlet passages and for a product flow control valve, which further includes a handle, a nozzle receiver assembly, and a trigger for rotating a spool valve between open, closed, and intermediate positions, and wherein means are provided for controlling the proportion and flow rates of the components within the flowing passages, and to facilitate insertion, locking, and ejection of the nozzle within the gun body.

Abstract: A foam dispenser for converting a plurality of foam components into an expanded foam that can be cleaned with compressed gas after the foam is discharged and which is distinguished by the use of a center plug having discrete passages to separate the various foam components until the components enter a detachable mixing chamber located external to the dispenser barrel.

Abstract: The invention relates to a discharge nozzle for the discharge valve of a whirlpool tube having a water inlet duct and an air inlet duct, in which the water stream and air stream are mixed together as the result of an injector effect. In order to improve the hydropneumatic massaging effect, the water inlet duct is disposed axially and centrally with respect to the inner surface of an outer disk-shaped distribution element and is open to a radially outwardly leading circular discharge duct formed between the outer distribution element and an inner disk-shaped distribution element. The air inlet duct discharges air into a ring interstice defined between the inner distribution element and the tub wall or the valve body or valve housing of the discharge valve.

Abstract: A piston-powered fluid dispensing system is disclosed. The fluid dispensing system comprises an apertured base, a hollow elongated cylinder, an apertured piston, a hollow orificed overcap, an elongated fluid passageway, an externally-channeled hollow extension, and three valves. The elongated cylinder, which defines a longitudinal axis, carries the base at one end portion and defines a hollow neck at the opposite end portion. The piston, disposed in the cylinder for providing two cylinder chambers, defines a circumferential portion that is slidably engageable with the cylinder substantially along the length of an inner surface. The overcap, carried by the cylinder and rotatable about the longitiudinal axis, defines an internal fluid-mixing region and a throat that is in fluid communication with the fluid-mixing region. The throat, carrying the externally-channeled extension, is slidably engageable with an inner surface portion of the cylinder neck.

Abstract: A method of and apparatus for producing a dense and tenacious coating with a thermal spray gun including a nozzle member and a gas cap. The gas cap extends from the nozzle and has an inwardly facing cylindrical wall defining a combustion chamber with an open end and an opposite end bounded by the nozzle. An annular flow of a combustible mixture is injected at a pressure of at least two bar above atmospheric pressure from the nozzle coaxially into the combustion chamber. An annular outer flow of pressurized air is injected from the nozzle adjacent to the cylindrical wall. Heat fusible powder entrained in a carrier gas is fed axially from the nozzle into the combustion chamber. An annular inner flow of pressurized air is injected from the nozzle into the combustion chamber coaxially between the combustible mixture and the powder-carrier gas. Upon combusting the annular mixture a supersonic spray stream containing the powder is propelled through the open end to produce a coating.

Abstract: Injection of atomized coal slurry fuel into an engine combustion chamber is achieved at relatively low pressures by means of a vortex swirl nozzle. The outlet opening of the vortex nozzle is considerably larger than conventional nozzle outlets, thereby eliminating major sources of failure due to clogging by contaminants in the fuel. Control fluid, such as air, may be used to impart vorticity to the slurry and/or purge the nozzle of contaminants during the times between measured slurry charges. The measured slurry charges may be produced by a diaphragm pump or by vortex valves controlled by a separate control fluid. Fluidic circuitry, employing vortex valves to alternatively block and pass cool slurry fuel flow, is disclosed.

Abstract: In a plural component foam dispensing apparatus there is provided an adjustable valving rod which permits the length of the rod to be more accurately adjusted to compensate for varying tolerances and permit the rod to extend out the end of the mixing chamber in its extended position and to retract to the rear of the inlet orifices in its retracted position.

Abstract: A lotion blending and dispensing unit is disclosed herein for internally combining and then discharging a composite lotion or solution which includes a cylindrical housing having a storage chamber for enclosing at least a pair of lotion containers removably mounted on a mounting block. The block is provided with at least a pair of orifices on an annular surface having a central projection about which a selector dial rotates. The projection includes at least a pair of passageways in fixed alignment with the orifices so as to conduct lotion therethrough. A regulating disc is movably disposed on the annular surface for revolving about the projection whereby a plurality of different sized apertures may be selectively aligned between the orifices and the passageways. The disc is movable in response to rotation of the selection dial.

Abstract: In a spray gun for fluids, such as paint, pressurized air is brought from a hollow handle to a hollow barrel while the fluid is brought radially into a fluid nozzle in the barrel. The fluid is expelled through a port in the center of the fluid nozzle at the end of the barrel and the pressurized air is expelled out the end of the barrel through openings in an air cap to shape the fluid spray. A cylindrical cartridge, which includes the fluid nozzle and a restricter plug, is movable along the inside of the barrel to change the size and/or shape of the spray and at the same time, control the amount of air to the air cap and the amount of expelled fluid to keep the air-to-fluid ratio substantially unchanged.

Abstract: A water jet aerator in combination with a diverter valve including an aerator housing, a valve body that is rotatably positioned within the aerator housing, and a swivel nozzle. The aerator housing includes a water inlet conduit, a water outlet conduit, and an air inlet conduit, while the valve body forms two chambers, a diverter chamber and an aeration chamber. As the valve body is rotated in one direction within the aerator housing, water flow from the water inlet conduit to the aeration chamber is diverted to the water outlet conduit, while the air inlet conduit is proportionally closed to the aeration chamber. As the valve body is rotated in the other direction, water flow from the water inlet conduit to the water outlet conduit is diverted to the aeration chamber, while the air inlet conduit is proportionally opened to the aeration chamber.

Abstract: A control mechanism is provided for use in a gas-operated spraying apparatus such as an airbrush having a needle located axially of a nozzle, the needle being retractable in the nozzle to dispense a medium, for example, paint to be sprayed. The control mechanism includes a manually actuated operating member supported by a pivotal linkage and movable in a first manner to retract the needle, the pivotal linkage causing the needle to be retracted initially at a reduced rate.

Abstract: An apparatus for mixing and dispensing fluid components includes a mixing chamber for mixing reactive components prior to dispensing the components. The components are provided through separate valves to ducts in fluid communication with inlets to the mixing chamber. The valve actuator can be selectively positioned to prevent one of the valve from opening. The valves are ball valves which are actuated by a hydraulic actuator acting through a rack and gear system. The rack is cylindrical with a flat spot formed thereon for preventing rotation of an associated one of the gears as the actuator is moved.

Abstract: A dispenser head (104) is fitted on two separate reservoirs which are disposed side-by-side and on the outlet openings whereof, dispenser valves are disposed. The head (104) comprises a first part (113) which cooperates simultaneously with the two valves with a view to producing the ejection of each one of the constituents into an ejection duct which passes through it. The second part of the head is complementary to the first part so as to constitute in the assembled position of the two parts, a mixing chamber (134) into which there open the two ducts (121a, 121b). The mixing chamber opens out to the outside of the head. Deflectors (136) may be carried by one of the parts (113, 114) in the mixing region of the chamber (134) to improve the mixing of the material dispensed from the two reservoirs.

Abstract: A dispensing device which includes two chambers, one for holding a resin and another for a hardener. Each chamber has an exit port formed in a neck which contains passageways leading to each of the chambers. The neck is equipped with external threads which mate with internal threads on a nozzle adjusting nut. A nozzle, which is carried by the nut can be moved from an open position to a closed position in which a portion of the nozzle's base closes the ports. A divider or tab projects from the neck at a location near and between the ports, and the nozzle has a slot to receive the divider. The divider serves to prevent mixing of the components until well after they exit the ports. The divider/slot arrangement further prevents mixing of the components by preventing relative rotation between the nozzle and the neck. Three separate sealing surfaces are formed on the base of the nozzle. One is cylindrical and seals against an O-ring carried by the neck.

Abstract: A fluid-dispensing system is disclosed. The dispensing system comprises an apertured base, a hollow cylinder, an apertured piston, an orificed overcap, a fluid passageway, an apertured extension, and three valves. The piston, slidably engageable within the cylinder, divides the cylinder into two chambers. The cylinder defines a hollow neck at one end portion thereof. The overcap defines an apertured throat that is slidably engageable within the cylinder neck. The throat aperture of the overcap provides fluid communication between one cylinder chamber and a fluid-mixing region spaced from the fluid-dispensing system. The fluid passageway, disposed through the piston aperture, provides fluid communication between a pressurized-fluid source and the fluid-mixing region via at least one orifice of the overcap. The base defines an apertured sleeve. The hollow extension, slidably engageable within the sleeve, is in fluid communication with the one overcap orifice via the fluid passageway.

Abstract: A foam dispensing gun of the type having a disposable nozzle for mixing and dispensing separate fluid components of a resin system in which a single, relatively large diameter cylindrical nipple projecting from the gun body supplies both components to the interior of the mixing nozzle. The nozzle is retained on the gun by a sliding breech which also pivotally supports a valve actuating trigger to be in an operative position when the breech is moved to retain a nozzle to the gun and disabled when the breech is moved to release the nozzle for reloading and by a molded-in ring which makes a fluid tight seal between the nozzle and the single gun body port. The breech includes a stop member so that the trigger actuating forces are isolated from the nozzle.

Abstract: The burner for gaseous fuels is especially intended for boilers. It is provided with sliding and/or turning means (15, 37) so as to assure, at least, in the output range of between 50 and 100% of the rated output, an at least approximately constant quantity relationship between gas and combustion air. For this purpose, for the simultaneous change in the admission of gas and air into a mixing chamber (24), there is used a control component, for example, a piston (15, 37). A first moveable, turning and/or sliding control piston (15) is provided the outer cylindrical surface of which controls the amount of combustion air while inside the first, tubular control piston (15) there is a second control piston (37) preferably coaxial to the first control piston (15), which controls the amount of gas by means of its inner cylindrical surface. The two control pistons (15, 37) are firmly attached to one another and can be pushed back and forth and/or turned by means of an actuating device (33).

Abstract: A coin-controlled atomizer dispensing system is actuated entirely by compressed air or gas. At the conclusion of an operating cycle a cylinder is charged with liquid to be dispensed. The next operating cycle is initiated by inserting a coin which momentarily opens an air valve. A charge of compressed air and a charge of liquid are simultaneously fed to an atomizer nozzle until the charge of liquid in the cylinder has been completely dispensed whereupon the compressed air is cut off and the cycle is terminated by re-charging the cylinder with the next charge of liquid to be dispensed.

Abstract: A spray gun has a housing with a piston chamber formed therein. A piston is movable within the piston chamber. One or more control rods connect to the piston and move in conjunction with the piston. The piston has a gas passageway in it. The gas passageway has a mouth which fits against a piston sealing member to control the flow of gas through the passageway. Each of the control rods includes a gas channel through the control rod extending from one end of the control rod to the other end of the control rod. Each of the control rods is associated with a spray component cavity with one of the ends of the respective control rods fitting in to a spray component seat within the component cavity. Movement of the control rod with respect to the seat serves as a valve for the spray component within the particular component cavity.

Abstract: A two-component mixing type coating method which is utilized for coating car components, and the like. A main component solution and a hardner solution are run together at an intermediate portion of a supply conduit and are mixed. The mixture solution is sent to a coating spray gun and injected from the gun for coating. The two-component mixing type coating method of the present invention is characterized in that check valves and stop valves are disposed at positions of the flow conduits upstream from the junction, an escape valve is connected to a flow conduit at a portion downstream from the junction, and when the coating spray operation from the coating spray gun is stopped, the escape valve is opened and then the stop valves are closed by control means.

Abstract: A snowmaking apparatus is formed of a concentric tubes to define an outer flow passage and an inner circular passage with water carried within the inner flow passage ejected across a pressure compensated annular gap defined by the end of the inner tube and the confronting surface of a spring biased nozzle disk tending to close off that annular gap. The same nozzle disk defines a second annular gap between the nozzle disk and an annular ring fixedly mounted within the outer flow passage has an end face confronting the end face of the nozzle disk.

Abstract: The improved adjustable combustion rate air/fuel proportioned burner of the present invention includes an air chamber housing with a plurality of air exit holes therein, a fuel gas tube disposed within the air chamber housing having a wall which is generally coextensive with the wall of the air chamber housing and having gaseous fuel openings therein, and a rotatable face plate covering a portion of such coextensive wall and having openings therein substantially corresponding in shape, size and location to the air exit openings and gaseous fuel openings in such coextensive wall. The improved adjustable combustion rate air/fuel proportioned burner of the present invention functions by means of rotation of the rotatable face plate to expose a selected and variable cross-sectional area of the air exit openings and gaseous fuel openings simultaneously to maintain a pre-selected ratio of air to fuel gas for the burning thereof.

Abstract: An automatic aspirator-transfer valve is disclosed which controls the delivery of washing and rinsing fluid from a supply to a cleaning gun. The device includes a valving piston which moves between a first or rinsing position to open communications to the bypass conduits and a second or washing position to close the bypass conduit. The injector aspirates washing fluid from a reservoir through a non-return valve, a side inlet and conduit of the side inlet, the side inlet conduit being separated from a passage within the housing bore. By this novel aspect, a user may change from the washing mode to the rinsing mode without the aspiration of dangerously high concentrations of washing agent and without unnecessary waste of the washing agent during operation.

Abstract: In a plural component foam dispensing apparatus there is provided an easily removable and replaceable combination nozzle-mixing chamber that is formed of a low friction, slightly deformable material with a first front contact surface against which is applied force to load the second rear contact surface against the contact surface of the nozzle seat to securely hold the combination nozzle-mixing chamber in place. The core of the combination nozzle-mixing chamber is not axially restrained on each end.

Abstract: A two-component mixing type coating apparatus comprises a supply/mixing device for letting a main component and a hardener run together at an intermediate portion of a supply conduit and sending them to a coating spray gun, check valves disposed in flow portions upstream of a junction in order to prevent backflow from the junction, and stop valves disposed in the flow portions between the check valves and the junction in order to close the flow portions in response to the stop of spray of coating by the coating spray gun.

Abstract: A gun having a gun body which includes a housing for component inlet and outlet passages and for a product flow control valve, which further includes a handle, a nozzle receiver assembly, and a trigger for rotating a spool valve between open, closed, and intermediate positions, and wherein means are provided for controlling the proportion and flow rates of the components within the flowing passages, and to facilitate insertion, locking, and ejection of the nozzle within the gun body.

Abstract: A spraying system having a plurality of separate pressurized fluid supply sources, a spray gun having a discharge nozzle and a plurality of fluid inlet ports corresponding to the number of supply sources and each communicating with the discharge nozzle, lines coupling each supply source to a respective one of the inlet ports, and a selectively operable discharge control associated with the spray gun for permitting passage of fluid through the discharge nozzle from any one of the plurality of supply sources, for enabling the simultaneous passage of fluids through the nozzle from a plurality of the supply sources, and for preventing the passage of fluids through the nozzle from all of the supply sources. The discharge control includes an individual spring biased valve assembly in each inlet port and a single control lever that is movable between an operative position for actuating selective of the valve assemblies and an inoperative position in which none of the valve assemblies are actuated.

Abstract: A shower head attachment has a liquid detergent reservoir and facilitates a "soap," "rinse," and "off" cycle. The attachment has a body provided with a rotary valve having a transverse port. The port is alined, selectively, with a first or second longitudinal inclined passageway formed in the body forwardly of the valve. A third passageway of critical internal diameter communicates the first passageway with an opening formed in a depending neck on the body and acts as an aspirating passageway. A sleeve is secured within the opening and carries a depending feed tube. The feed tube extends into a reservoir or bottle of liquid detergent that is removably mounted on the depending neck of the body, externally of the sleeve. The sleeve has a valve seat above the feed tube, and a ball check valve is seated on the valve seat. The valve carries an external handle; and the ends of the handle carry depending cables, the ends of which are provided with respective tabs.

Abstract: A laser effects simulator having inner and outer cylinders which serve as parate plenums for two gases--a fuel and an oxidizer. Each plenum contains a multiplicity of small release ports or holes. An inner cylinder serves as a combustion chamber. The inner cylinder contains two sets of small release ports or holes arranged to simultaneously match or line up with the multiplicity of ports in the two plenums. Thus, allowing both fuel and oxidizer to be admitted to the combustion chamber and become mixed. On one end of the inner cylinder is an igniter that starts the combustion process. The reaction creates a high temperature mixture which expands to a low density hot gas that simulates the results that are produced when a high energy laser beam interacts with a solid surface.

Abstract: A hydraulic valve arrangement is provided for simultaneously opening or closing off the flow of fluid from a plurality of separate and distinct inlet fluid lines to a plurality of concentric fluid passageways connected to an internal mixing chamber having an outlet nozzle leading therefrom. The valve arrangement includes a spool valve axially slidable within a bore of a housing. This spool valve includes at least a central fluid passageway therethrough and another, concentric fluid passageway defined between the spool valve and the bore. When the spool valve is in the open position, the inlet fluid lines are in fluid communication with both the central passageway and the concentric passageway. Fluid flowing through these passageways enters into the interior mixing chamber and exits that chamber through the outlet nozzle. When the spool valve is in the closed position, flow from the inlet fluid lines to the passageways is cut off.

Abstract: An improved injection gun system for lawn treatment adapted to permit selective application of a treating fluid by the operator as an incident to application of a main stream fluid through a hand held injection gun. The system comprises a pressurized source of main stream fluid, a pressurized source of treating fluid, a reach of hose including a large diameter conduit connected to the main stream fluid source and a small diameter conduit connected to the treating fluid source, an injection gun connected to the large diameter conduit of the concentric hose, and a fail safe cut-off valve interposed between the small diameter treatment fluid conduit and the injection gun for controlling the injection of treatment fluid into the main stream passing therethrough.

Abstract: A dispensing gun to deliver at point-of-use chemically reactive constituents or foam reactants in a predetermined volumetric ratio. The foam reactants are pre-packaged within pressurized containers connected to the gun through supply tubing. The dispensing gun has as its principal components: a body with a barrel, bore and pistol grip; a squeezable trigger housed in the pistol grip; a reactant supply and mixing component adjacent the front end of the bore; a reciprocating valve rod within the bore actuated by the trigger; and a bias means normally closing supply ports in the reactant supply and mixing component, and moving the trigger rearwardly of the pistol grip.

Abstract: Spray gun (10) includes a unitary valve (22) for controlling the flow of polyester resin and catalyst through the gun and discharging the polyester resin and catalyst in converging streams from nozzles (24) and (26) so that the two liquids thoroughly mix as they flow together through the air. Valve (22) includes a rearward, catalyst mixing section (82) composed of an inlet sleeve (90) and an outlet sleeve (91), and a forward resin flow control section (84) composed of an elongate inlet sleeve (144) and an end sleeve (150). Inlet ports are formed in sleeves (90) and (144) and outlet ports are formed in sleeves (91) and (150) to permit the flow of catalyst and resin when an elongated needle (80), extending longitudinally through the center of the sleeves, is disposed in rearward, activated position and to prevent the flow of catalyst and resin when the needle (80) is disposed in forward, deactivated position.

Abstract: A dispensing apparatus to deliver at point-of-use chemically reactive constituents or foam reactants in a predetermined volumetric ratio. The foam reactants are prepackaged within replaceable pressurized containers carried by the apparatus and having projecting dispensing valves connected to a manually actuated dispensing nozzle through flexible tubing. The apparatus includes brackets for holding the top and base of the containers in side-by-side fixed relation, a T-shaped member for actuating the dispensing valves in unison, and a manual key with an elongated shank extending through bores in the brackets and the T-shaped member. The key shank and the bores are selectively threaded to provide opening or closing movement of the container dispensing valves.

Abstract: A device for mixing and dispensing two or more reactive liquids into a homogeneous stream. The device includes a mixing chamber with two or more inlets for introducing separate liquid components into and an outlet for dispensing the mixed liquid components from the chamber. Separate passages connect each inlet to a separate source of liquid. Also, each passage includes an on-off valve disposed between the liquid source and the inlet and each passage also includes a pressure opening truncated cone pin check valve seated in close position in a truncated inlet to the mixing chamber.

Abstract: A shower fitting for a domestic installation comprises a shower head, which can be held in the hand, and which comprises inlet connections adapted to be connected by flexible conduit to supplies of hot and cold water. The shower head comprises a body, the interior of which is formed to provide a mixing chamber to which hot and cold water is delivered, and from which water flows to a spray outlet of the shower head. The temperature of the water flowing from the shower head is controlled by a thermostatic control member on the body, which includes means for positively shutting off the flow of water from the shower head.

Abstract: A dispensing device for mixing and dispensing multi-component liquid mixtures is described. The dispensing device comprises valve assemblies including a tapered valve plug and a correspondingly tapered valve seat and, downstream from the valve assemblies, respective orifices which provide access to a mixing and dispensing nozzle. The cross-sectional area of the orifices is about 1.7.times.10.sup.-4 to 2.0.times.10.sup.-3 sq. in. and the ratio of the cross-sectional area of the valve opening at any level of operation to the cross-sectional area of its respective downstream orifice is less than about 3.0. The device generally is configured as a dispensing "gun" and provides a capability for controlled variation in the flow rate of the liquid components and mixing of the components at a consistent volume ratio.

Abstract: A proportional regulation oil burner of low-pressure air type, wherein a second separate air nozzle is disposed between the oil nozzle and the first air nozzle, and a small amount of low-temperature air is fed into the second air nozzle to prevent the oil nozzle from becoming higher in temperature, whereby heavy oil can be used even when the preheating air of high temperature is used.

Abstract: A foam dispenser for converting a plurality of foam components into an expanded foam which can be flushed with a cleaning solution after the foam is discharged is distinguished by the use of a rotary valve member corresponding to each foam component introduced into the dispenser to constitute the expanded foam. Each rotary valve member has a single passageway and is mounted for movement between positions in which (a) the passageway communicates with the tube carrying the foam component and (b) the passageway communicates with a tube carrying the cleaning solution, thus permitting cleaning of the dispenser at all points downstream of where the foam components enter the valve. The distance between where the foam component is introduced into the dispenser and the point where the foam component enters the valve is so short that no significant amounts of buildup of the foam component can occur.

Abstract: An improved method and apparatus for producing a dispersion of substantially immiscible liquids which employs a conduit having an upstream section divided into first and second channels of variable length and a downstream section for mixing the liquids. The apparatus also includes means for varying the length of the first and second channels and means for flowing the liquids separately through the channels whereby the liquids mix in the downstream section of the conduit to form the dispersion. In accordance with one embodiment, a conventional mixer-settler is modified to include the conduit mounted at an upstream end of the settling chamber so that its inlet is adjacent the mixing chamber and its outlet is approximately at the same height as the organic-aqueous interface in the settling chamber.

Abstract: A showerhead control structure having an extending control operator, defining, a showerarm provided having a separate hot and cold water port for connection to existing hot and cold water supply lines in a showerstall wall comprising, a first pivotal ball and socket waterflow control valve structure to shut off the water flow in at least one pivotal position by swinging movement of the extending operator and in combination a second waterflow control valve structure to vary the water spray temperature and shut off the waterflow therethrough by rotational movement of the extending operator.

Abstract: A showerhead device assembly, independent of the need for faucet or faucets, including an extending control operator for controlling waterflow, water temperature and spray, comprising, a main housing having a passageway between a discharge mouth and an inlet providing a separate hot and cold water chamber for pivotal connection to a showerarm having a hot water port and a cold water port including discharges and an inlet connection, to a hot and cold water supply, including a first water temperature and flow control structure and a second waterflow and spray control structure connected with the extending operator, enabling a user to shut off and turn on waterflow through the showerhead, adjust the temperature of the water flowing therethrough and adjust the spray texture and direction by movement of the operator.

Abstract: A spray head for use with conventional air-atomizing spray equipment is disclosed which has spray-forming means that includes a secondary atomization annulus which provides improved atomization of liquid materials and which is especially suitable for spray devices having electrostatic induction charging means. The secondry annulus minimizes deposition on the spray head of particles electrically charged with a polarity opposite that of components of the spray head and provides re-atomization of sprayable material which collects on the walls of the nozzle.

Abstract: A flame spray gun (10) for feeding and melting rods (R) of heat fusible material and spraying molten droplets thereof onto a substrate comprising an improved main supply valve connected to air, fuel gas and oxidant conduits (14-22) (44-48) including air, fuel gas and oxidant inlet and outlet chambers (28-38), continuous seals (40) and vents (42) between the chambers, a valve shaft (50) with axially spaced slots movable within a bore and seals to connect the inlet and outlet chambers, a valve locking device (54-56) for maintaining shaft (50) either in a LIGHTING or ON position and an unlocking device (62-66) to release biased valve shaft to an OFF position. An improved combustion head (70) and flame spray nozzle (82) has seals situated on opposite sides of oxidant and fuel gas chambers and between the combustion head and nozzle.

Abstract: A spray gun is disclosed for simultaneously spraying a liquid and a particulate material, for example, in applying decorative facings to walls and like surfaces. The gun is designed to spray a central stream of particulate material surrounded by a liquid stream. The gun includes a first air passageway into which the particulate material is introduced and a second air passageway into which liquid can be introduced under pressure. An air flow control valve is disposed in a first air passageway and is coupled to a trigger so that the valve is progressively opened as the trigger is squeezed. A flow control valve is also provided for the liquid and is coupled to the trigger so as to be progressively opened as the trigger is squeezed.

Abstract: A dual gas supply blow torch has two gas inlets and a gas outlet for connection to a nozzle; a mixing and control valve operated by a single control device is interposed between the inlets and the outlet and this comprises a core axially displaceable in a bore provided with valve seatings. For each gas inlet the core has a valve formed by an annular elastic sealing joint engageable with a corresponding seating, and an escape passage is provided having a cross-section which can be varied by elastic deformation of the sealing joint in order to control the gas flow. At least one of the two valves has means for proportioning the gas flow rates.

Abstract: An injection valve arrangement for a high-pressure injection of liquid fuel into a working chamber of an internal combustion engine with the arrangement including at least one valve needle which is urged by a spring force in a closing direction so that a pair of sealing cones associated with the valve needles are brought into engagement with a pair of separate valve seats. The valve needle is liftable in a direction opposite a flow direction effective in the injection process by hydraulic pressure of the fuel to be injected. Pressure chambers having a diameter larger than the respective valve seats are provided and communicate by way of appropriate ducts which merge to form a common flow cross-section. At least two separate line connectors are provided for receiving separate fuels and/or fuel components with the line connectors directing the fuels and/or fuel components to the respective pressure chambers.

Abstract: An apparatus is provided for the mixing of a first liquid foaming agent component with compressed air in a mixing chamber to produce a foam. A nozzle for ejecting a second liquid component into the foam is provided downstream of the mixing chamber. The mixing chamber is attached to the downstream side of a valve housing. The valve housing includes a triple plug valve for simultaneously selectively connecting and disconnecting a first liquid component inlet and an air inlet with the mixing chamber and a second liquid component inlet with the nozzle. First port means, connecting the air inlet downstream of the triple plug valve, to a plurality of air ejection orifices communicating with the mixing chamber is provided within the valve housing. Air control valve means is provided within said first port means for controlling the amount of air flowing to said mixing chamber.

Abstract: Valve assembly which mixes two components for delivery to a spraying apparatus. The assembly is comprised of a core valve mounted in a housing or body which is secured in a chamber in a manner which provides passageways between the housing and the chamber. A fluid is delivered to the core valve by a first conduit attached to the housing, while air is delivered to the chamber by a second conduit coaxial with the first attached to the chamber. The core valve is operated by a plunger or push rod which opens the valve permitting the fluid to enter the chamber and causing it to be mixed internally with the air for delivery to a spraying nozzle device. The valve assembly is operated simultaneously with the vlaves of the spraying device and may be incorporated into the spraying nozzle device or provided as an attachment thereto.