Abstract: A plurality of manifold valve assemblies each including a generally vertical valve cylinder having an inlet port at its top and at least two outlet ports near its bottom. A single actuator valve is fitted for closing each of the ports, each including a valve actuator, an actuator rod attached to and actuatable by the actuator, one end of the rod projecting outward from the actuator, and at least one valve plug attached to the projecting end of the actuator rod. Two of the three valves have rods that are coaxial with each other, the rods being independently actuatable by their respective actuators, a hollow cylindrical valve stem attached to the projecting end of the hollow actuator rod, having a valve plug for opening and closing an inlet port, the valve plug having a central opening through which the first actuator is fitted, the other two valves having valve plugs for opening and closing outlet ports, and being independently controllable by a valve actuator, one of the outlet ports.

Abstract: A combination of a fuel manifold and a plurality of like fuel control devices mounted thereto, a manifold for such a combination and methods of making the same are provided, the combination comprising a fuel manifold having a fuel receiving chamber therein and a plurality of like fuel control devices mounted to the manifold and having inlet projections extending into the manifold to receive fuel from the chamber thereof, the manifold having a pair of opposed spaced apart substantially flat front and rear walls and a pair of opposed spaced apart substantially flat side walls interconnecting the front and rear walls together, one of the side walls having a plurality of spaced apart openings therethrough and through which the inlet projections of the control devices respectively extend, the side walls being spaced apart a distance that will permit two of the control devices to have the inlet projections thereof respectively extend through aligned openings in the side walls so that two of the control devices can

Abstract: A slide-valve manifold useful for attachment to a catheter and a syringe is disclosed. The slide-valve construction of the manifold tolerates high-pressure fluid without significant leakage. The manifold may contain a single slide element or multiple slide elements.

Abstract: A flow control manifold assembly, constructed of a number of manifold valve assemblies. Each manifold valve assembly is formed of a single valve body that has two or three valve chambers. Each chamber is fitted with an inexpensive single actuator valve assembly. The valve chambers are connected together in fluid communication with each other at their lower ends. A bonnet is affixed to each actuator, and projects into its valve chamber and removably carries the valve stem which carries a valve plug. Each valve assembly is thus independently removable from the valve housing while the other two valve assemblies remain in place, thus providing a means to prevent unwanted loss or mixing of fluids in the system.

Abstract: An irrigation control device, comprising a primary water supply tube for operable connection to a pressurized water source, a plurality of water manifold pipes extending horizontally from the supply tube having formed along the tops thereof a plurality of apertures, a manifold seat for water-tight connection with each of the apertures and including an upwardly opening receptacle in flow communication with the supply tube, a plurality of rotameters arranged upright for receipt in the receptacles, each rotameter including a base through which is formed a passageway for receipt of a flow of water, a transparent water tube extending upright therefrom having formed therethrough a vertical passageway and a weighted element therein positionally responsive to the flow of water therethrough, and an outlet nozzle located above the valve for connection to a water line to convey the controlled flow of water to areas requiring irrigation and, a cabinet for housing the manifold pipes and the rotameters, including an access

Abstract: Branch pipes are provided at a plurality of locations along a supply conduit of a lubrication oil circulation system comprising a storage tank, an oil supply pump and the supply conduit. The branch pipes are connected to oil supply tanks via shut-off control valves, thus constituting the oil supply systems. Oil supply devices for apparatuses to be lubricated are connected to the respective oil supply systems.

Abstract: A combination shut-off and test-injection valve has a valve body with an inlet end and an outlet end adapted for connection to a fluid line or conduit and a fluid flow passageway extending from end to end. A shut-off valve in the body is movable between an open position allowing fluid flow through the body and a closed position closing off fluid flow through the body. The combination valve has a test-injection valve in fluid communication with the fluid flow passageway adjacent the shut-off valve which is movable between a normally closed position preventing communication between the fluid flow passageway and the exterior of the body and an open position allowing fluid communication between the fluid flow passageway and the exterior of the body.

Abstract: Fire hose manifolds and systems are provided by this invention which include a high pressure chamber having a large inlet opening and a plurality of small outlet openings therein. A first coupling means is provided for making fluid communication between the large inlet opening and a source of pressurized water, and a second coupling means is provided for making fluid connection between a portion of the outlet openings and a fluid conduit. The fire manifolds of this invention are light weight and include quick disconnect couplings for providing emergency access to a water source for the treatment of fires and hazardous material zones.

Abstract: An L-shaped mixing head for reaction injection molding apparatus comprises a first chamber wherein a plurality of reactive molding components are impingement mixed under high pressure. A second chamber intersecting with the first chamber quiets the resulting stream of mix product prior to its exiting the mixing head. The outlet end of the second chamber is defined by the inner surface of a sleeve, the material of which has a yield strength less than that of the materials of the mixing head body and the second plunger. Most preferably, the sleeve material is also chemically nonreactive with and nonadherent to the reactive molding components to be used therewith, both individually and as mixed.

Abstract: A system for controlling fluid flow between a first point and a second point on a fluid line is disclosed. The system includes the first valve located at the first point on the fluid line to permit forward fluid flow from the first point to the second point on the fluid line and for closing to prevent such forward fluid flow. The system also includes flow sensors for detecting forward fluid flow at the second point and opening the first valve when such forward fluid flow is detected. The flow sensors also close the first valve when fluid flow at the second point stops. The system further includes a second valve located at the second point for opening and closing to control forward fluid flow at the second point. The system prevents forward fluid flow if a break in the fluid line occurs between the first and second points by preventing the first valve from opening.

Abstract: The supply and return passages of the apparatus are defined by fittings, each of which defines also a valve passage, which contains a rotary valve for controlling the flow rate in a cooling circuit of the injection molding machine. A valve actuator is detachably mounted on each of said fittings and is operatively connected to said rotary valve. Each of said valve actuators is selectively constituted by a gearmotor housing, which contains a gearmotor for an automatic control of said rotary valve, or by an actuator housing of a manual drive. At least one of said fittings is provided with detachably mounted monitoring means, which comprise a temperature detector and/or a flow-sensing tube and communicate at one end through a tubular port of said fitting with said return passage section thereof and at the other end are provided with a hose coupling for connection to one of said cooling circuits.

Abstract: A color changer comprises a manifold assembly including first and second fluid outlet passages for supplying coating material to first and second devices, respectively, a coating material circulation line extending through the manifold assembly, and valves for selectively coupling the coating material circulation line to the fluid outlet passages for separately controlling flow of coating material from the circulation line to the first and second outlet passages. The valves are coupled to the manifold assembly. The valves are arranged in pairs, one valve of each pair disposed across a respective coating material outlet passage directly opposite the other valve of its respective pair. The manifold assembly comprises a plurality of segments which are joined together to form the manifold assembly.

Abstract: An electro-pneumatic valve which includes a spiral coil formed of electrically conductive material bonded to an insulative substrate. A second layer of substrate material is mounted substantially beneath the combination of the spiral coil and insulative substrate. The second layer of substrate has both a recess and an outer edge. There is a first passage communicating between the recess and the outer edge. Within the recess is a magnetic armature that is operatively aligned with the spiral coil. There is a second passage communicating between the spiral coil and the recess. The magnetic armature moves in response to electric current passing through the spiral coil to close the second passage.

Abstract: A pinch valve control system for regulating the flow of water through the water distribution network of a building. Remote-controlled, fluid-operated pinch valves are spaced at various locations throughout the water distribution network of the building and may be selectively operated from a remote station to stop the flow of water in any pipe throughout the building's water distribution network. The use of pinch valves permits water flow to be increased or decreased gradually and reduces or eliminates water hammer. The pinch valve is operated by compressed fluid which enters the sleeve around the pinch valve to stop the flow of water in the pipe. To resume the water flow, the fluid in the pinch valve is released.

Abstract: A valve for controlling flow of air from a source of air under pressure such as a compressed air tank comprising an elongate body with first and second ends and first and second sides lying opposite one another. A transverse opening, extending between the first and second sides of the body adjacent its first end, has five coaxial sections of circular cross section having various diameters. The valve further includes a valve stem having a head with a pair of annular grooves in it, each holding an O-ring. The O-ring closest to the inner end of the head is engageable with a valve seat provided in of the transverse opening on inward movement of the stem to close the valve. A knob is attached to the valve stem to facilitate moving the stem. The valve stem with the O-rings in the grooves but without the knob is capable of assembly by inserting the stem into the opening from one side of the body.

Abstract: Disclosed are a spout and a method for simultaneously dispensing beverage into a plurality of drinking glasses or a single drinking glass. The spout includes a housing having a first portion defining a beverage receiving chamber with a beverage inlet for receiving beverage. The housing also has a second portion defining at least two beverage dispensing chambers, each of which has a beverage exit for dispensing beverage. The beverage dispensing chamber is in fluid communication with the beverage receiving chambers for receiving fluid from the beverage receiving chamber. The second portion of the housing has at least two spout sections, each of which defines one of the beverage dispensing chambers and one of the fluid exits.

Abstract: A drought relief system employs waste water as normally discharged from an appliance into a plumbing drain. A dual valve assembly is mounted in series within an existing appliance discharge line, usually exteriorly of the appliance and includes a first valve allowing for the distribution of waste water to the normal discharge line. By shutting off this first valve and opening a second valve, waste water is directed into a drought diversion conduit passing through the building wall and communicating with an appropriate distribution line. The latter may comprise a single conduit or a manifold network of conduits such as perforated pipes or hoses and thus permits utilization of water that otherwise would be discharged into the user's septic system or municipal waste system.

Abstract: A three-way ball valve adapted for connection to a liquid distribution pipe with a pipe cleaning device therein, the valve including a spherical closure element that is located with respect to the pipe to minimize deposition and accumulation of residues in said pipe and to facilitate removal of said residues by movement of said cleaning device past said closure element.

Abstract: A fuel injection system having a novel electromagnetic-actuated fuel pump in which four pumping elements, equally-spaced around a camshaft are mounted such that a pair of opposed pumping elements alternate to deliver pressure to a high pressure common rail with a second pair of pumping elements. In one embodiment of the invention the pumping elements are mechanically actuated, in another they are electronically actuated. The high pressure common rail is adapted to reduce surges in the fuel pressure from the pump up to levels of 20,000 psi. The common rail has a relief valve for controlling the maximum pressure in the common rail chamber. The electromagnetic injection nozzle has a needle valve that is closed by pressure in a balancing chamber having a reduced pressure level less than that of the pressure required to open the valve.

Abstract: A pinch valve control system for regulating the flow of water through the water distribution network of a building. Remote-controlled, fluid-operated pinch valves are spaced at various locations throughout the water distribution network of the building and may be selectively operated from a remote station to stop the flow of water in any pipe throughout the building's water distribution network. The use of pinch valves permits water flow to be increased or decreased gradually and reduces or eliminates water hammer. The pinch valve is operated by compressed fluid which enters the sleeve around the pinch valve to stop the flow of water in the pipe. To resume the water flow, the fluid in the pinch valve is released.

Abstract: A fluid flow control valve for use with chemical fluids where avoidance of contaminants is important, is provided. The valve has a flow control chamber divided into an analytical section and a driver section by a metallic foil membrane operating member, clamped between the peripheral rim of the chamber and the upper wall. The foil membrane is moveable in response to driver fluid pressure between open and closed positions. The upper portion of the rim which engages the membrane is of relatively small surface area, and is made of a softer material than that from which the membrane and the upper wall are constructed, thereby providing a very effective means of sealing the membrane periphery to the upper wall when tightly clamped. The membrane is of domed shape, and is formed in situ by deformation of a planar metal foil sealingly clamped in position within the chamber, by application of fluid pressure thereto through a port to the chamber.

Abstract: A one-way check valve is positioned in a water line leading from a building to a water supply line or main so that the water line is divided into a first portion substantially disposed within the building and a second portion substantially disposed externally of the building. The valve retains water in the first water line portion in the event of a loss of water pressure in the second water line portion as may be caused, for example, by earthquake or other earth movement.

Abstract: A system for metering the volume of a liquid, e.g. ink, supplied by a positive displacement pump to an installation, such as a printing press, employs a device for generating a first series of signals each indicative of completion of a pumping stroke. The speed of the pump is also sensed to generate a second series of signals each indicative of the positive supply of liquid by the pump. The signals of the first series are counted only in the presence of a corresponding signal of the second series. The result is an accurate numerical indication of the total volume of liquid pumped.

Abstract: A plurality of pilot controlled liquid operated coolant control valves are mounted in a section of a manifold for actuation by fluid pressure of coolant in said manifold as controlled by solenoid operated pilot valves controlling the fluid pressure operation of the coolant control valves. The manifold and its valve assemblies are positioned adjacent the work and backup rolls of a rolling mill for supplying coolant to said rolls in desirable spray patterns covering the surfaces of the rolls and operable only when the rolling mill is functioning normally.

Abstract: A multiple waste isolation system including a common drain connected to the discharge outlet of an inductively coupled plasma system for atomic spectroscopy. This common drain may be connected to a multiport valve for directing the flow of waste material to a selected one of a plurality of flow paths or the common drain may be connected directly to each flow path with each flow path including individual on/off type valves for selectively allowing flow through the various paths. The system also includes at least two drainage lines either directly connected to the common drain or connected thereto via the multiport valve for isolating a waste product from the other drainage line so as to maintain the separation of potentially incompatible waste products. The system further includes a purging tube which is also connected either directly to the common drain or thereto via the multiport valve for circulating a cleaning solvent through the common drain and the valve.

Abstract: A flow collector/distributor for a water treatment tank comprises a housing proportioned to communicate through a wall of the water treatment tank to provide flow communication between the tank interior and the tank exterior. The collector/distributor defines an inner end to project inwardly from the tank wall and an outward end to face outwardly from the tank wall. A plurality of slots are defined in the tubular housing, positioned to communicate with the tank interior when the collector/distributor is seated in the tank wall. The slots are of a width which is narrow enough to permit water flow therethrough while substantially preventing passage therethrough of water treatment material present within the tank.

Abstract: Gas distribution system including main, lateral and loop conduits in which gas flow is continuously provided between a source of pressurized gas and venting means so that "dead space" is avoided in the distribution system and continuous real time monitoring of system gas is enabled.

Abstract: A common manifold, which is connectable to a source of pressurized gas, is connected via two symmetrical sets of rigid components to respective coupling elements, which are connectable directly to vessels to be charged with gas. Since there is no flexible hose section the risk of bursting at high pressure is obviated. To facilitate connection of vessels at any convenient position each set preferably includes at least one component which is rotatable and at least one elbow joint.

Abstract: A solenoid valve having an electromagnet arranged in a chamber into which an inlet duct and an outlet duct of the solenoid valve open, whereby the coil is constantly ventilated by the compressed air itself. The armature of the electromagnetic has a disc for shutting off the outlet duct and is formed by a plate which is urged into the closed position of the solenoid valve by the compressed air. The plate rotates about a beading of elastomeric material and exhibits extremely low inertia, whereby the solenoid valve can be operated at high frequency. The chamber can house a plurality of electromagnets, each of which controls a shut-off member for a corresponding outlet duct. The body also comprises an interchangeable shell which has funnel-shaped chambers for directing the air of at least one set of ducts to a common outlet aperture.

Abstract: A reliable, consistent, facile, and economical mounting of a fuel rail on an engine for attenuating vibration between the fuel rail and the engine. An attaching bracket that is joined to the fuel rail has a hole that aligns with a threaded hole in the engine. An elastomeric grommet is situated in the bracket hole and compressed in a controlled manner by a threaded fastener that is passed through the grommet and threaded into the threaded engine hole until a shoulder of the fastener abuts the engine.

Abstract: A movable air stand for pneumatic tools has a supporting base and a vertical column supported by the base. The column is a tube closed at both ends having fittings thereon whereby compressed air may be introduced into the column through an inlet fitting and may be connected to pneumatic tools through a plurality of outlet fittings. A plurality of hangers are provided on the column, each hanger having a hook thereon for supporting one or more pneumatic tools when the tools are not in use. The hangers are pivotally joined to the column and are braced for support. The hangers and braces may be vertically pivoted on the stand. A tray is movably mounted on the stand. A moisture release valve is disposed at the base of the column. The air stand is easily assembled and disassembled.

Abstract: An apparatus, including a manifold pipe, for applying variable amounts of steam to sections of a calenderable material to control certain properties of the material such as gloss. Built-in steam flow control valves are provided along the manifold pipe to control the amount of steam applied to each section. Bucket nozzles provided on the valves decrease the velocity of the steam jetted from the valves and eliminate any condensate present in the steam before discharging the steam against a surface of the calenderable material. Condensate which may form on the apparatus may be channeled away from the calenderable material by a pair of gutters.

Abstract: Apparatus for simultaneously forming one or more lines of multi-character messages on the surface of solid material which employs an array of marker pins which are moved by a carriage along a singular plane locus of movement defining a sequence of rows corresponding with a pixel matrix. The locus includes a retrace feature for each row or transverse movement which enhances the quality of character formation. An actuator assembly develops the locus of movement and, in turn, is driven by facing cam wheels which, in turn, are powered from an electric motor. A manifold which receives pneumatic pulses from arrays of conduits is coupled to the carriage and a marker head assembly, in turn, is removably coupled to the manifold. An array of solenoid actuated valves is coupled to the tubing arrays and to a pneumatic source which may be remotely positioned from the manifold.

Abstract: A low air loss bed having an integral source of air mounted to the frame thereof. Sets of air bags are mounted on the frame, each set of air bags corresponding to a portion of the body of the patient to be supported on the bed. Separate gas manifolds are provided, each of which connects a single set of air bags to the gas source. Individually controlled valves are used to adjust the amount of air which flows to the gas manifolds and on into the air bags. Also, means are provided operable to selectively route a flow of additional air to the gas manifold which supplies air to the air bags which support the heavier portions of the patient. A low air loss air bag is provided, as is apparatus for adjusting the amount of air supplied to each set of air bags and for controlling the temperature of the air delivered. Also provided is a means for simultaneously fully inflating all the air bags and means for simultaneously deflating all the air bags.

Abstract: A modular fill assembly is provided for use on a filling machine. The assembly defines a plurality of individual product discharge flow paths each communicating with a common supply. A plurality of fill nozzles are carried by the assembly for each filling a separate container. Individual valves for each flow path are each operable between an open configuration permitting the flow of the product through the associated flow path and a closed configuration occluding the associated flow path. Each valve has a separate actuator for operating the associated valve independently of the other valves.

Abstract: An improved solvent handling system for use with a liquid chromatograph is disclosed in which a manifold allows a source of pressurized gas to communicate with a plurality of solvent vessels. Individual check valves prevent return flow into the manifold and cross flow between the solvent vessels. A pressure equalization system is also provided for equalizing the pressure between each solvent vessel and the corresponding supply conduit. An individually manually operated vent is provided for sparging and pressure release.

Abstract: An internal pressure explosion-proof construction for an electrically-driven robot with which purging of airtight chambers of the robot in which electric motors are installed can be performed efficiently in a short time when air or inert gas is charged into the airtight chambers. The airtight chambers in which the electric motors are divided into a plurality of blocks, and an automatic opening and closing valve is provided at an outlet port connected to each of the blocks such that it may be opened only when the corresponding block is to be purged.

Abstract: An automatically operating valve for regulating water flow, especially a mixing valve for automatically mixing hot water and cold water to obtain a mixed water of a desired temperature is characterized by employing piezoelectric actuators for operating valve bodies thereof. Due to such a construction, the valve can not only fully close or open but also carries out the fine flow amount control by regulating the opening rate or angle of the valve body. Especially in case the automatically operating valve is a mixing valve, the mixing ratio of hot water and cold water can be accurately regulated so that the mixed water of a desired temperature can be always automatically obtained.

Abstract: A method and an apparatus for dividing and uniting flows of high-consistency fibre suspensions. To prevent clogging of the distributor the fibre suspension is caused to flow into a space unitting the inlet and the outlet flows, where a turbulent flow extending to the valves regulating the discharge flow is created. The distributor includes a vortex chamber provided with an inlet and outlets and with regulating valves connected to the outlets and disposed at a short distance from the outlets. According to a preferred embodiment of the the invention, a rotor provided with vanes is disposed in the vortex chamber.

Abstract: A distributor is connected through a main pipe to a discharge port or discharge ports of a lubricating apparatus. Deaerating valves of the distributor are disposed in connection with at least one of a main pipe flow passage and discharge ports of the distributor.

Abstract: Airtight sacks are installed in parallel array to support a patient on a bed. A blower supplies air to the sacks through a function control valve system and a multi-tap high flow pressure selector. The pressure selector defines discrete zones of air pressure between its inlet and its exhaust to atmosphere. An adjustable tap communicating with each sack may be selectively placed in communication with any of the pressure zones to independently establish the pressure maintained in each sack. The sacks connect to the line from the pressure tape at a check valve connector. The function control valve system permits, in addition to normal operation, rapid inflation of the sacks, rapid pump-down of the sacks, and closing of the sacks to retain air pressure for transportation. A detector and indicator of the patient's depth of deflection is provided for at least one sack.

Abstract: A valve construction and method of making the same are provided, the valve construction comprising a housing, a valve seat carried by the housing, a movable lever carried by the housing and having an opening passing through opposed sides thereof, a valve member for opening and closing the valve seat and having a stem projecting through the opening of the lever whereby the valve member is carried by the lever, and a tubular member disposed in the opening of the lever and telescopically receiving the stem of the valve member therein whereby the tubular member spaces the stem from the lever at the opening thereof.

Abstract: An improved patient support structure comprising an articulatable frame, a plurality of elongated inflatable sacks, some of the sacks having one or two comfort slots therein, a low pressure compressed air blower and a plurality of pipes and manifolds for carrying gas from the blower to the sacks. The sacks are connected to the gas supply pipes and manifolds so as to be easily detachable therefrom. Each manifold has a variable muffler to control gas exhaust. An automatic switching circuit determines whether to power the brushless DC electric motor from a rectified AC power source or DC power supplied by batteries carried unobtrusively by the support structure. A multi-outlet, variable flow, gas valve connects to the blower to the pipes and comprises a housing defining at least two cylinder chambers and a discrete outlet for each cylinder chamber. A primary silencer is connected to each discrete outlet. The sacks rest atop a neoprene membrane which covers a planar upper surface of the frame.

Abstract: A mobile resuscitating apparatus with a detachable and portable oxygen delivery unit adapted to deliver either low or high pressure oxygen ventilation. A stand with casters supports the oxygen delivery unit for movement in the vicinity of a patient. Two oxygen canisters are coupled to flow control valves through a manifold. One valve regulates the volume of oxygen delivered to the patient and a second valve regulates oxygen pressure. The canisters, valves and manifold can be detached from the stand and carried with the patient to a medical facility. Two storage containers organize various drugs and airway maintenance equipment used in performing emergency resuscitation.

Abstract: A solids flow distribution apparatus is disclosed for use with two or more solid separation devices, such as shale shakers. The appartatus includes a plenum in communication with a source of flow of solids and liquid, such as from a drilling rig's mud system. The plenum includes lower outlets positioned adjacent inlet zones for each solid separation device. Valves are positioned across the lower outlets for regulating the quantity of solids and liquids that flow into the inlet zones of each solid separation device. A variable distribution apparatus is included within the plenum adjacent the flow inlet for regulating the proportion of solids directed towards each solid separation device.

Abstract: The disclosed gaseous fuel torch apparatus is adapted for use in cutting, welding, heating or other such operations involving the heating, cutting, or fusing of either metallic or non-metallic materials. The apparatus includes a fueling module for supplying gaseous fuel to a torch at an elevated pressure from a relatively low pressure gaseous fuel source, such as a natural gas supply system for example. The fueling module also preferably includes a selectively-operable alternate system for supplying such compressed gaseous fuel for other applications, including the recharging of one or more storage vessels for example. The fueling module includes features by which its gaseous fuel discharge pressure can be infinitely varied and preselectively adjusted within the capabilities of the fueling module's compressor device.

Abstract: A multiple inflatable/deflatable seat cushion bladder system has bladders arranged to receive pressurized air from one source without having fluid communication between the separate bladders when they are deflated or when an external load increases the pressure in one of the bladders. Input tubes are connected to the bladders and an inflation valve is connected to the input tubes for permitting fluid flow into the bladders while preventing fluid flow out of each of the bladders. An output tube is connected to the each bladder, and a deflation valve is connected to the output tubes for permitting fluid flow out of each bladder while preventing cross flow between the bladders. A switch assembly connected to the inflation valve and to the deflation valve allows the pressure in the bladders to remain constant or to be selectively increased or decreased.

Abstract: A unitary block of steel is formed into a manifold by a feeder bore that is intersected by one or more common branch bores. The common brach bore includes a first branch and a second branch which extend along the common branch bore axis in opposite directions from the feeder bore. The first branch is intersected by a first stem cavity and the second branch is intersected by a second stem cavity, and the valve stems are located in these cavities. In this way, the manifold block is formed by boring operations instead of by casting, the flow of gas through the branches is unimpeded by obstructions or offsets in the flow path.

Abstract: A dual shower head assembly for use in personal showers to allow two people to shower independently at the same time, one person to shower in a conventional manner or one person to shower with two separate sprays. The assembly includes an upper shower head, a lower shower head, a substantially "S"-shaped connecting conduit, a diverter valve assembly and an adjustable shut-off valve. The diverter valve assembly is adapted for threaded engagement with the water supply pipe protruding from the shower wall and defines a pair of water outlets, one of which communicates with and is pivotally connected to the lower end of the connecting conduit. The shut-off valve is carried by the diverter valve assembly and communicates with the other of the water outlets in the diverter valve for selectively allowing water flow therethrough. The lower shower head communicates with and is pivotally mounted on the shut-off valve, downstream of the diverter valve.

Abstract: A hydraulic control system for actuating a switch or related device including an actuator assembly having a housing with a member movable therein and connected to the switch for movement therewith between first and second positions responsive to the application of hydraulic pressure in the housing on opposite sides of the movable member.