Abstract: A cutting oxygen flow control valve in a cutting torch has a poppet movably positioned in a cutting oxygen passageway upstream of a valve seat. The poppet has openings at a downstream end of the cylindrical wall thereof so that these openings are exposed upon movement of the poppet as a manually controlled diaphragm lifts off the valve seat. The progressive exposure of the openings provides for cutting oxygen flow past the valve, thereby producing a desired progression in the flow rate.

Abstract: The present invention relates to a two stage venturi for a catalytic burner wherein a large exit aperture size and a small air entrainment opening are used to provide a low velocity, rich fuel/air mixture for the pre-heating process followed by a small exit aperture size and a large air entrainment opening to provide a high velocity, lean fuel/air mixture for the catalytic combustion process. Concentric rotating sleeves are used to vary the size of the exit apertures and the air entrainment openings.

Abstract: An apparatus for the construction of improved tank structures employing a pump metering and delivery system which accurately meters, mixes and evenly sprays composite materials to form the walls of tanks or containment vessels. Such systems have specific application to the construction of walls of prestressed tanks formed by inflating a membrane and applying rigidifying material outwardly of the membrane and then prestressing the walls by circumferentially wrapping prestressing material around the same. Promoters, catalyst, and other chemicals are used to create composite walls, each feeding into individual pump systems comprised of at least two hydraulic cylinders connected to supply cylinders which are coordinated so that their strokes are controlled to arrive at a desired flow. The flow is then channeled through a mixer which mixes the material for spraying through a nozzle. The flow from the nozzle can also be intermixed with chopped glass from a chopper system or with granular materials.

Abstract: The apparatus for applying a sprayed concrete layer to a surface comprises a concrete feed pipe for a pumpable and sprayable concrete mixture made with water, a sprayer and a compressed air feed device for compressed air under a pressure of several bar from a compressed air source. The concrete feed pipe opens into the sprayer which has a compressed air connector device. The concrete mixture is sprayable with the compressed air. The compressed air feed device comprises a register including several compressed air chambers which connect to and open into the compressed air connector device. The individual compressed air chambers are connected with the help of control valves in alternating sequence to a power silo for loading a powdery concrete additive, particularly silica powder, or for blowing through a compressed air partial flow.

Abstract: A spray gun with an automatic valve opening control means which enables remote and stepless control of a paint spraying operation has atomizing means provided at the front end thereof, a paint valve member which enables adjustment of the amount of paint jetted out from the atomizing means, and a spray pattern adjusting valve member adapted to adjust the spray pattern by controlling the amount of compressed air jetted out from the atomizing means. A threaded slider mechanism is provided on the proximal portion of a valve body of either the paint valve member or the spray pattern adjusting valve member (or both). A servo motor and an encoder are connected to a drive screw member of the threaded slider mechanism. The encoder is adapted to detect the rotational position of the servo motor and output a controlled variable of the motor, and the servo motor is controlled in response to an external signal.

Abstract: An improved beverage dispensing system utilizing a unique mixing valve design is disclosed. The mixing valve comprises an inner rotatable member an outer casing, and a flow restriction which produces a jet of spray, yielding a reconstituted beverage of uniform consistency.

Abstract: A liquid dispensing gun wherein a spray pattern control valve is located internally of the gun. The spray pattern control valve is in the form of a two position air flow valve movable between a first position wherein low air flow is supplied through the valve to a second position wherein high air flow is provided through the valve. The valve has two adjustable stops operable to fix the low air flow and the high air flow positions of the valve. Manual pressure on the stem of the valve controls movement between the two positions.

Abstract: An adjustable valve incorporated into a faucet or shower head which is manually manipulatable in order to control water flow at the faucet or shower head with the adjustable valve including interchangeable components to enable the faucet and shower head to be provided with an aerator or jet spray arrangement and enabling the components to be assembled in a manner which will reduce the number of different components necessary to assemble either a faucet or shower head which includes an adjustable valve therein. The adjustable valve includes a rotatably supported crown or shower head bell which can be manually rotated to adjust the valve with the valve itself including a restrictor having orifices therein and a valve plate having flat surfaces and a cavity associated with a central opening to enable control of flow through the orifices.

Abstract: An oxygen-fuel cutting torch having an easily manufactured preheat tube assembly assuring complete mixing of the oxygen and fuel, and minimizing the danger associated with flashback of the flame into the torch. The preheat tube assembly includes an outer tube, an inner tube, a mixer tube, and a nozzle fitting. The inner tube and mixer tube are joined together end to end by the nozzle fitting and are both positioned within the outer tube. A chamber is formed in the oxygen channel at the juncture of the nozzle fitting and the mixing tube for increasing the turbulence of the oxygen prior to mixing with the fuel and to attenuate the shock wave generated by flashbacks.

Abstract: The method of supplying nutrient liquid to a plant growing system comprising a series of many planters that are essentially alike and that are disposed at a common level, the system including a supply line extending from a supply point to the planters in succession, including the steps of first supplying a first nutrient liquid to the supply line at the supply point under pressure so that the planters receive nutrient liquid to progressively lower levels in relation to their distances from the supply point due to attenuation of pressure along the supply line, interrupting the supply of liquid for equalizing the levels of liquid in the planters, thereafter supplying a second nutrient liquid different from the first at the supply point so that the planters receive such second nutrient liquid to progressively lower levels in relation to their distances from the supply point, and interrupting the supply of the second liquid for equalizing the levels of liquid in the planters, thereby to develop a range of differe

Abstract: An electromagnetically controlled fuel injection system which includes a mechanism for sensing a plurality of operating conditions of a combustion engine and for generating a plurality of electric signals corresponding to the conditions, an electrical control unit receiving the first electric signals to thereby generate a second electric signal in response thereto, an electromagnetically controlled fuel injection valve mechanism controlled by the second signal from the electrical control unit and having a fuel injection port formed therein and an electromechanically controlled air supply valve mechanism provided with an air supply port around the fuel injection port of the fuel injection valve and controlled by the second signal from the electric control unit.

Abstract: Hydromassage apparatus for a whirlpool bath system includes a novel adjustable nozzle assembly adapted to be mounted on the wall of a bathtub or other water holding receptacle to directionally discharge a high velocity jet stream of fluid. The system includes a novel, venturi type, air injector for introducing air flow and intermixing air and water to form a high velocity, turbulent stream of fluid which is discharged from the directional nozzle assembly. The system further includes a novel air inlet control valve for selectively controlling the amount of air introduced into the water stream in the injector and the valve is also provided with a safety shut off capability for preventing the back-flow of water out through the air inlet passage.

Abstract: The present invention relates to a method of controlling a substantially stoichiometric combustion of liquid fuels in a burner assembly wherein a stream of compact or atomized fuel is produced by means of an orifice or nozzle (e.g. injection, pressure, rotary atomizing nozzle) and fed into a mixing and atomizing zone in accordance with the preferably adjustable, nozzle input pressure, wherein at least part of the combustion air as an atomizing medium is introduced from the side of the axis of the fuel stream, with the flow of such air being adapted to be controlled with respect to throughput (flow rate) and flow velocity, and including a subsequent combustion of the fuel/air mixture within a combustion zone downstream of said mixing zone.

Abstract: Chemical injector comprises injector structure for injecting a solution from a reservoir into a flowing stream, usually water. The reservoir is at atmospheric pressure, and a chemical solution is withdrawn therefrom by Venturi action, with flow rate being controlled by passage size. Alternatively, an injector pump can positively pump the reservoir solution into the flow stream when the flow rate is too low for Venturi action. A flow control valve is also connected to a bottom portion of the piston of the pump to control the amount of chemical solution flowing from the reservoir to the flowing stream.

Abstract: A versatile portable fluid dispensing, manually controlled gun with instant selectivity of hard, soft or foam flow of liquids, either of water or a solution, with or without entrainment of fluid such as air and with or without a foaming flow of the fluid whereby each of a great many different relations of discharge can be selected with a versatile solution discharge nozzle that provides selectively changeable liquid solid jet streams or soft flows of liquids with or without entrainment of a fluid such as air; and selectively with entrainment of air operable either with or without a foaming agent in the liquid. Instant controls interchangeably operated provide any one of twelve different dispensing relations with water alone or with a chemical foaming agent, each supplied separately or together as a mixture; in each of these phases, namely jet flow, soft flow and foam flow.

Abstract: Automatic and reproducible spraying of liquid materials on complex tool surfaces is attained through a multinozzle spraying block, traversed by supply passages for the spray material and the air for spraying, and comprising, on at least one of its faces, a series of valves provided with elastic obturating membranes and with pneumatic logic control, programming and communication of the spray material supply passages with the spray air outlets of the nozzles grouped on at least one of the block faces. Application of the multinozzle spraying block to automatic treatment is achieved by spraying materials on tool surfaces under constant conditions on repetitive-cycle machines.

Abstract: An electrical control mechanism for use with high-pressure pump systems having the electrical control components housed within a pistol-like structure connected by flexible hosing to the high-pressure distribution system for convenience of directing of the high-pressure spray and also for ease of controlling the pumping system. The high-pressure distribution system being controlled by the electrical mechanisms in the pistol-like device by means of a remotely actuated electrical clutch and a remotely actuated electrical valve.

Abstract: A spray gun includes several atomizer and a plurality of conduits communicating therewith for supplying different coating materials. A valve needle is disposed in each supply conduit, such needles being individually controlled by pneumatic cylinders. In one embodiment the supply conduits are oriented at an acute angle relative to the axis of the gun barrel. In a second embodiment the supply conduits curve away from such longitudinal axis, with the valve needles formed of elastic material. In a third embodiment the supply conduits extend parallel to the longitudinal axis of the barrel, with the pneumatic cylinder oriented at a right angle relative to the valve needle and connected thereto by means of a knee joint.

Abstract: Nozzle having a housing with a cylindrical inner surface and with a fixed wall extending at a right angle to its axis. A movable wall is mounted in the housing adjacent the fixed wall and is rotatable about the axis, so that a pattern of apertures in the movable wall match similar apertures in the fixed wall to control flow of fluid therethrough.

Abstract: A process and apparatus for mixing two fluids by generating a pressure drop across a pair of surfaces each forming a wall of a mixing chamber and confronting one another while separating a respective source of fluid from the mixing chamber. The surfaces being provided with mutually aligned and opposing apertures thereby accelerating the respective gases through the apertures in opposing jets. The resulting mixture of the fluids is conducted away from the chamber in a direction substantially parallel to the surfaces.