Abstract: The oral hygiene device comprises a nozzle-holder connectable to a liquid source and a nozzle (1) removably attached to the nozzle-holder, the nozzle being intended for spraying either a multi-jet of liquid via a first duct or a single jet of liquid via a second duct. A two-way valve (5) makes it possible to direct the liquid towards one duct or the other and therefore the branching of the two liquid ducts are located in the nozzle itself. There is a restoring spring (27) which is such that the stable position of the device is for multi-jet spraying, while under the action of an external force exerted on the control member (6) of the valve the device assumes the single-jet position.

Abstract: A valve comprises a housing having an inlet port, an outlet port, and a backflush port for discharging the dirt from the filter during a backflushing operation. A first passageway interconnects the inlet port and outlet port, and a second passageway interconnects the outlet port and the backflush port. A displaceable valve member is movable to a filtering position to effect a filtering operation wherein the inlet port is connected to the outlet port via the first passageway, or to a backflushing position to effect a backflushing operation wherein the outlet port is connected to the backflush port via the second passageway.

Abstract: A system is disclosed which may alternatively be used as a diverter or as a blowout preventer for a drilling rig. The system comprises a blowout preventer attached above a spool having a hydraulically driven sleeve/piston. An outlet flow passage in the spool, which may be connected to a vent line, is closed off by the sleeve wall when the spool piston is at rest.Hydraulic ports are connected above and below the blowout preventer annular piston and above and below the spool annular piston. The ports below the blowout preventer piston and above the spool piston are in fluid communication with each other. A hydraulic circuit is provided having two valves between a source of pressurized hydraulic fluid and a drain.

Abstract: A valve comprising a cylinder with a number of inlet and outlet ports at one end having movable therein a resiliently surfaced piston, wherein the valve is closed by movement of the piston to a position wherein the resilient surface simultaneously closes all of the ports. Means is provided to normally urge the valve toward an open position and closing means which may be highly pressurized air is provided to move the piston to a valve closed position.

Abstract: A compressed gas supply system is disclosed which includes a pressure tank for a predetermined compressed gas. An outlet valve is mounted on the pressure tank and includes at least two outlet ports. One outlet port is provided with a size and thread configuration proportioned to meet a first industry standard for connection of equipment using the compressed gas within the tank. The other port has a size and thread configuration different from the one port, and proportioned to meet a second different standard for connection of equipment using the compressed gas. An automatic pressure-regulating valve is provided in one of the ports to reduce the pressure delivered to such port to a maximum pressure less than the maximum pressure allowable in the associated outlet port. The valve reduces the inventory requirements by permitting the use of a single valve and tank combination to connect with distribution systems for the compressed gas having different maximum pressure values.

Abstract: A four-way air directional valve assembly is disclosed in combination with apparatus employed for pneumatically generating waves in a wave pool having a plurality of wave generating chambers arranged side-by-side and extending across the width of a pool at one end thereof. Each of these wave chambers has a below the water passageway in communication with the pool and a sealed portion located above the normal water level of the pool. Each chamber has an inlet-outlet passageway above the water level with the passageway serving in one mode as an inlet for directing forced air into the wave chamber and in a second mode as an outlet for exhausting air therefrom.

Abstract: An air distribution system, particularly for automobiles, in which the depth of the unit is relatively short and in which control over the direction of air flow can be achieved by movement of an element in a plane orthogonal to the direction of air flow. A main air flow outlet is formed in a wall member and a parallel flow path is formed adjacent the outlet and has diverging walls which are relatively short so that there is no wall attachment or coanda effects per se. Flow of fluid through the adjacent parallel flow path exits through an opening that directs the air in a direction generally parallel to the short wall direction of the adjacent flow path. By controlling the entry of air into the parallel flow path, the main air flow vector is deflected and the direction of flow is thereby controlled. The deflection is greater when an obstacle slightly intrudes the side of the outlet opposite the parallel flow path.

Abstract: A flow device including a plurality of flow channels which converge in a common housing containing a pre-biased flow control diaphragm at the position of convergence of at least two channels. The control diaphragm is pre-biased by a set of prongs which extend from an integral portion of the common housing.

Abstract: A system that is particularly useful in biological fluid analysis includes a face plate member and a mating flexible member, one of which has a plurality of passages. Selected motion of the flexible member provides a valving action to control fluid flow into, through, and out of the passages. An analysis chamber in a surface of the face plate member is in fluid communication with a passage and has an analyzer which, for a hematology analyzer, is preferably an impedance-type particle counter.

Abstract: A flexible and resilient normally planar flap valve having two portions which together form a generally elongated oval shape. One portion of the flap has a greater radius than the other portion to restrict movement of the flap when installed in a tubular member. When installed the valve forms a generally arcuate shaped flap having a outer surface configured to conform to the cross-sectional shape of the tubular member. The flap has two operative positions; a first position in which the valve allows air to flow unrestricted through the tube; and a second position in which the valve seals off the main air source and directs air between a side opening and the tubular member. The flap is provided with a handle molded directly to one end of the flap, thereby creating a single piece integrated lever and live spring valve.

Abstract: A multi-functional air heater and compressor is provided and consists of a cylindrical housing having a closed bottom and an open top, an electric fan affixed vertically in the bottom of the housing, first screen affixed around circumference of the housing to provide an air inlet for the fan, electric filaments for heating the air placed within the housing above the fan, a second screen affixed near the open top of the housing to provide a large air outlet and a plate for directing the air into a plurality of small outlets, the plate located at the open top of the housing.

Abstract: An adjustable volumetric control and balancing element is positioned in a flow passageway at the juncture of a supply line and two discharge ports. The element has a beveled end face in the flow passageway for directing fluid from the supply line to the discharge ports. Adjustment of the position of the beveled end face within the flow passageway controls and balances the flow of fluid directed to the discharge ports.

Abstract: A vent line system is disclosed which is adapted for connection to a flow diverter attached to a drilling rig. The system assures that the vent line is always open for discharge of pressurized drilling fluid away from the drilling rig in one of two directions.

Abstract: A valve body is provided having axially spaced annular valve seats defining fluid outlets for the body. The body includes an inlet opening into the interior thereof between the seats and a disc valve is supported within the body for axial shifting between the seats. A drive mechanism for the valve disc is drivingly connected thereto and is operative to slowly shift the valve disc from one seat toward engagement with the other seat. The drive mechanism includes a reversible electric motor, a timer, a storage battery and a solar panel for recharging the storage battery. The timer alternately operates the motor in opposite directions whereby the valve disc is shifted back and forth between seated engagement with the axially spaced valve seats.

Abstract: A distributing valve comprising a valve housing 1 having an inlet 2 and a plurality of outlets 3, the interior of the valve housing 1 being provided with a plurality of displaceably arranged closure members 6, each closure member 6 cooperating with an outlet and being provided with an end face 9 forming a smooth guiding surface from the inlet 2 to one or more other outlets 3 in the closed position of said closure member.

Abstract: An engine coolant flow controlling valve for governing the flow of engine coolant to a heater core comprises a valve housing defining first and second ports for respectively introducing coolant to the valve housing from the engine and directing coolant to the engine from the housing, said first and second ports opening into said housing adjacent each other in a housing wall, and third and fourth ports for respectively directing coolant from the housing to the heater core and introducing coolant from the heater core to the housing; a ceramic valving member supported for translational movement in the housing between a first position wherein coolant flows to said heater core via the first and third ports and returns to the engine via the second and fourth ports and a second position wherein the valving member blocks flow through the third and fourth ports and coolant flows from the first port to the second port bypassing said heater core.

Abstract: A unit for diversion of a gas which may be hot, dust-laden, saturated with water vapor and containing water droplets, e.g.

Abstract: A power-assisted valve is provided which is particularly effective for systems handling viscous materials, such as certain metering systems. The check valve operates effectively even with highly-filled viscous resins used in such systems. The valve includes a valve seat and a valve ball which can be urged toward the valve seat to a closed position by a fluid-powered cylinder and piston. The piston rod is separate from the valve ball so that the ball can rotate relative to the valve seat.

Abstract: A cylindrical chamber accommodates an axially movable rod having a helically grooved portion of the periphery, to which a starting flow of liquid is fed via an inlet passage of said cylindrical chamber, outlet passages for discharging separate streams of liquid after splitting of the initial flow to users and for feeding one of the streams back to the initial flow being arranged on different sides of the inlet passage. The distances between the geometrical axes of the inlet passage and outlet passages for discharging liquid to users are substantially identical and equal to the length of the helically grooved portion of the rod. With such a construction of the splitter, liquid supply to users may be varied over a broad range with relatively small axial displacement of the rod.

Abstract: A valve housing has a circular cylindrical tubular member and a tubular body having a central portion which is substantially rectangular in cross-section and has mutually opposite, first and second side walls. The first side wall has in cross-section a length equal to the diameter of said tubular member, which is joined to said first side wall and extends at right angles thereto. A motor-operable valve member is axially slidably mounted in said tubular member and comprises a laterally open shell, which consists of a part of a circular cylinder and is coaxial to said tubular member and substantially defined by that cross-sectional plane of said central portion which includes the axis of said tubular member, a circular ring at the end remote from said second side wall, and an end wall at the end opposite to said circular ring.

Abstract: The fluid flow switching apparatus includes a housing defining a chamber, a bore in communication with the chamber, fluid inlet and outlet ports respectively in communication with the chamber and bore, and a valve body movable within the chamber and carrying a sealing means for sealing about the bore. The valve body carries a pin which projects laterally into a cam track formed in the housing and which serves to releasably lock the valve body in a position enabling flow between the inlet and outlet ports through the chamber and bore and in a valve closed position preventing flow between the inlet and outlet ports. The valve body is movable manually between the valve open and closed positions by consecutive depressions of a push key connected to the valve body.

Abstract: An adjustable distribution valve comprises a body defining first and second axially-aligned branches and a third branch extending laterally thereof, substantially in the form of a T. A plug element is fitted in the passage formed by the axially-aligned branches and is movable therewithin. The plug element is bounded by a cylindrical surface of diameter equal to the diameter of the passage, and two opposed concave surfaces which intersect the cylindrical surface at a point substantially halfway along the plug element and at opposite ends of the plug element at positions which are diametrically opposite said point.

Abstract: A fluid distributor for distributing a fluid into a plurality of flow paths. Each flow path can be individually opened or closed without disturbing the flow of liquid in the other paths. The distributor comprises a plurality of cells, each of which includes an intake orifice which is in fluid communication with a discharge conduit from which the fluid flows for subsequent use and an evacuator conduit from which the fluid flows for eventual recycle to the intake orifice. An obturator is provided which, in one position, stops flow from the intake orifice to the discharge orifice while permitting flow from the intake orifice to the evacuation orifice and which, in its other operative position, stops flow from the intake orifice to the evacuation orifice while permitting flow from the intake orifice to the discharge orifice. Each cell includes valve means to adjust the flow to the evacuation conduit to be the same as that to the discharge conduit.

Abstract: A valve construction in the form of a "flex-finger" or flexible stem valve is provided for handling substances which are highly corrosive or very active chemically. The valve body, valve seats, a valve ball and flexible finger or flexible valve stem are all composed of chemically resistant material. The flexible stem has an outer end secured in the valve body against rotation with a fluid tight joint and an inner end for actuating the "ball". The flexible stem is composed of material which is sufficiently resilient so that it may be caused to travel in a circular or orbital path carrying or actuating a "ball" or other attachment into and out of engagement with the valve seat or seats.

Abstract: In a thermoplastic extrusion system where a single extruder feeds molten polymer through a manifold to a plurality of separate extrusion orifices, a valve is provided which distributes and regulates the flow of the molten polymer to the individual extrusion orifices.

Abstract: An alternator valve assembly particularly suited for below ground level use in septic systems for diverting flow from a single inlet to either of two separate outlets. The valve is comprised of a plastic housing which defines a valve chamber having an inlet, a pair of outlets, and valve plug seat means located in the housing adjacent each outlet. A rubber valve plug is adapted to be received in the valve chamber in one of the outlets to selectively block flow therethrough. The plug includes a sealing lip cooperable with the valve seat of the associated outlet and includes an elongated handle protruding outwardly of the valve housing to facilitate movement of the plug between blocking positions with each of the outlets. An outlet box defining a hollow outlet box chamber and having an exit area may be disposed in operative communication with each of the valve housing outlets.

Abstract: A waste disposal system embodies a waste diverter apparatus for receiving waste from a single waste supplying chute and selectably controlling distribution of the waste to a pair of waste outlet chutes. Each of the waste outlet chutes is connected to a waste compactor or other suitable means for waste disposal. The waste diverter apparatus includes a waste diverter housing which has a single waste inlet opening, and a pair of waste outlet openings which connect to the pair of waste outlet chutes. A waste outlet gate is provided for each waste outlet opening, and each gate slides horizontally to open and close its corresponding waste outlet opening.