Abstract: A valve body has an inflow passage for a working fluid, an outflow passage for the working fluid, and a pressure relief passage, which connects the inflow passage and the outflow passage by bypassing a normally close valve seat. A pressure relief valve is located in the pressure relief passage. The pressure relief valve closes the pressure relief passage, if a pressure of the working fluid in the outflow passage is lower than, is equal to, and is higher by a pressure difference less than a predetermined relief pressure than a pressure of the working fluid in the inflow passage. The pressure relief valve opens the pressure relief passage, if the pressure of the working fluid in the outflow passage is higher by a pressure difference equal to or higher than the relief pressure than a pressure of the working fluid in the inflow passage.

Abstract: A water main tapping device includes a saddle body including an arcuate shape between a first clamp end and a second clamp end, wherein the saddle body includes a saddle opening at a point between the first clamp end and the second clamp end, and a corporation stop body formed integrally with the saddle body at the saddle opening. The corporation stop body includes a base on the saddle body, a housing atop the base, and a connector end atop the housing. A valve housed in a valve cavity within the housing of the corporation stop body. The base of the corporation stop body includes an inlet cavity and the connector end of the corporation stop body includes an outlet cavity, and the opening of the saddle body, the inlet cavity, the valve cavity, and the outlet cavity are in fluid communication.

Abstract: An apparatus for draining the water from a waterlogged pressure bladder tank wherein the apparatus uses a drill bit which may be drilled through the tank and then passed outwardly through a valve member to a suitable drain.

Abstract: A saddle, in particular a clamping saddle for plastic pipes, containing a branch projection, a saddle piece, center axes (X), (Y) and (Z), and a groove for the arrangement of a seal, wherein the inner cheek of the groove is arranged, throughout the course of the groove, perpendicular to the inner surface of the saddle piece.

Abstract: A method for extracting tritium from irradiated boiling water reactor control rods that have cruciform-shaped. Bands of a malleable metal are wrapped around the flat portions of the blades, one band near the top of each blade panel and a second band near the bottom. The bands are crimped and an inlet penetration is formed through one of the bands and the panel and an outlet penetration is formed through the second band and the panel. A termination of each end of a closed loop conduit is sealably connected to the inlet and outlet for transporting a carrier gas through the interior of the panel. The carrier gas passing through the interior transports the tritium out of the panel to a tritium getter filter to capture the tritium. The carrier gas then recirculates through the system.

Abstract: Embodiments of an aircraft valve assembly are provided for use in conjunction with a selected type of clamp having multiple segments separated by a predetermined gap spacing. In one embodiment, the aircraft valve assembly includes a flowbody having a ported end portion and a flow passage in which a valve element is movably mounted. An array of baulking tabs is mounted around the ported end portion at predetermined intervals corresponding to the predetermined gap spacing to substantially limit the type of clamps installable around the ported end portion to the selected type of clamp.

Abstract: The invention relates to a coaxial coupling which comprises a male part (501) and a female part (502) and comprises a bypass valve (218) so that the female part (502) can be decoupled from the male part (501) while pressurized fluid passes through the female part (502). The nipple pipe (105) of the male part (501) pushes a spring-loaded valve (218) in the female part (502) over said rear holes (301) in the inner pipe (2) of the female part. The female part (502) has a rotatable locking sleeve (207), which is coupled to a sleeve (214) accommodating pins (213).

Abstract: A blast gate assembly for connecting two hoses includes a first cylindrical section for frictionally engaging with a first flexible vacuum hose, a second cylindrical section for frictionally engaging with a second flexible vacuum hose, and a valve section disposed between the first cylindrical section and the second cylindrical section. The valve section includes a mounting bracket.

Abstract: The present invention relates to an apparatus for a flanged connection between a tubular member having a flange and a valve fitting having a valve flange and a valve body, and in particular to an apparatus for axially loading the mated threads of the valve flange and the valve body after geometrical alignment of the bolt holes of the flange on the tubular member and of the bolt holes of the valve flange.

Abstract: The gas manifold assembly (1) is adapted to a cooking appliance for supplying the burners (21) thereof, and is equipped with various taps (C1-C4) of the rotary type, installed on a elongated tubular-shaped manifold conduit (2), which is disposed parallel to the front wall (FP) of the appliance and supported on it. The taps (C1-C4) have a respective installation seat (7) with a built-in gas intake connected to the elongated conduit (2), and mounting is carried out by means of a one-piece mounting device (12), which in turn has an integral means (12b) for supporting and fastening the manifold assembly (1) to the front wall (FP), for which purpose the aligned tap drive shafts (16) stand proud of the front wall (FP) and the tap outlet conduits (8) face and adjoin their respective burner (21).

Abstract: A device making use of heated fluid to reduce dust products in a waste gas pipeline comprises a chamber, a heating pipe placed in the chamber, a gas injection pipe for injecting gas into the chamber, an exhaust pipe for exhausting gas carrying away heat of the heating pipe, a connection pipe connected to the pipeline and having an open groove annularly disposed thereon, a U-shaped gas guide ring having an insertion hole for connecting the exhaust pipe, and a top lid for sealing the U-shaped gas guide ring. A wedged guide wall is disposed on the inner sidewall of the U-shaped gas guide ring. When the device is in use, gas injected into the chamber will take heat on the heating pipe away. The gas of higher thermal energy then flows from the chamber into the connection pipe and then the exhaust pipeline, hence reducing accumulation of products in the exhaust pipeline.

Abstract: An improved outlet tube device for a urinary drainage bag is disclosed wherein an outlet valve mechanism is contained with a rigid housing fixed securely to the drainage bag, rather than just being clamped to the outlet tubing, and thus cannot become separated from the bag. The outlet valve can be opened only by positive action on the part of the medical care personnel, thereby assuring that urine will be discharged only in a controlled manner. Further, because the valve mechanism does not require that a substantial length of tubing with a freely movable end be used in conjunction with the outlet port, there is no need to engage the free end of the tubing with a keeper. Thus the possibility of the tubing springing back to its straight configuration and flicking residual urine on the attending medical personnel is eliminated. In one embodiment the outlet tube device comprises a pinchcock-type valve which is fixedly mounted to the bag and which is normally operative to clamp off the outlet tube.

Abstract: Plumbing articles made from a thermoplastic resin comprising a poly(biphenyl ether sulfone) and a poly(aryl ether sulfone) comprising bisphenol A residues.

Abstract: A method and assembly (kit) are provided for use by propane tank service personnel to detect escaping gas in propane tank systems. The standard connection between the regulator and tank service valve is replaced with a permanent valve assembly including a main connection between the regulator and valve and a valve unit disposed in a branch connection of the valve assembly. A separate pressure gauge is individually assigned to tank service personnel and adapted to be carried by such personnel in testing the pressure in the propane tank. The pressure gauge is affixed, e.g., through a hose, to a valve unit connector including an actuator, i.e., a valve stem operator, for actuating the valve unit. When the pressure gauge is connected to the valve unit, the latter is actuated to provide an immediate reading of the tank pressure.

Abstract: Siphon freeze drain valve for an underground water sprinkling system including a line operating under water pressure, the drain valve being a U-shaped tube, one end of which is passed through a hole in the top of the line, the other end of which is outside the line at a lower level than the first end. A clamp and a seal holds the tube in the line against the force of the water in the line and prevents leaking around the tube. A check valve is in the end of the tube outside the line, the check valve selectively opened and closed to control flow through the tube and for establishing a siphon for draining the line.

Abstract: A milk line valve comprises a slide, a connector and a saddle. A port in the saddle opens into the milk line through an annular seal and the slide obstructs the seal. When the connector is inserted, it moves the slide into a position in which it unblocks the port and allows it to communicate with an opening in the connector. The slide and connector can be forced against the seal by connector guides and springs which force the guides against the seal with a prescribed force.

Abstract: A user friendly engine delivery system is provided which employs a wheeled engine pallet assembly for transferring a dressed engine to a dynamometer room where the engine will be subsequently tested. A set of guide rails work in conjunction with a self-centering pallet locating system in order to strategically locate the engine pallet relative to the centerline of the dynamometer. Once the engine pallet is properly aligned, a clamping system is used to secure the engine pallet assembly to the bed plate of the dynamometer. A flexible fluid manifold is attached to the pallet assembly and allows a test engineer to uniquely design a fluid manifold to have the proper fluid fittings that are needed for a particular test application. The engine delivery system is versatile in that it can accommodate both front and rear wheel drive engines and further offers the flexibility of dual side entry ways.

Abstract: A pipe connecting structure is constituted by a milk tap having an aperture to be aligned with a corresponding opening arranged at the top of a milk delivery pipe, and a slide valve for opening and closing said aperture, and a plug-in metal fitting removably fitted to said milk tap and including an elbow pipe. The slide valve includes a slide valve carriage having a substantially circular valve sliding hole and transversal collar insertion holes disposed along the lateral sides of the valve sliding hole, a pair of guide pins projecting outwardly from the bottoms of the respective collar insertion holes, a pair of guides projecting outwardly in a direction opposite to that of the guide pins, a pair of holders for slidably holding the guides collars with tapered leading ends fitted to the respective guide pins of the valve carriage, and coil springs arranged between the collars and the bottoms of the collar insertion holes.

Abstract: The present invention is a bracket connector for a water supply system having a ballast pipe supporting a conduit with a plurality of dispenser valves. The three piece bracket connector includes a bottom or saddle receiving portion attached on the conduit and keyed to a vertical wall of the conduit saddle, a middle or ballast receiving portion having arms for receiving and holding the ballast pipe, and a top portion for fitting between the arms whereby the three portions form a bracket connector body having a substantially continuous external surface for minimizing the accumulation of particulate. By keying the saddle receiving portion on the wall of the conduit saddle, the dispenser valves are maintained in a perpendicular alignment with the ground. The bottom and middle portions are interconnected by a tongue and slot arrangement which extends across substantially all of the width of the bracket connector, thus distributing the weight of the conduit across the tongue and slot interconnection.

Abstract: A drain fitting adapted to receive and direct condensate into a drain pipe comprises a cylindrical body with multiple stepped diameters for attaching condensate drain hoses of different sizes, and includes an internal one-way ball check valve to prevent material from reversing flow and escaping out of the drain pipe. The body attaches to the drain pipe by either a clamped-on connector consisting of multiple parallel hinged elements molded integral with both the fitting body and with each other, or by being glued into a screwed-in fitting received in the threaded opening of a Y-branch fitting in the drain pipe. The ball is retained in the check valve opening by ridges formed by pressing a hot tool to crimp over the edges of the fitting opening.

Abstract: A continuous output device for liquid or gaseous fluids comprising a rail having channels each opening to a first surface of the rail through a slit sealed by a sealing strip, the fluid being supplied to the channels of the rail, and a coupling having an opening member for locally pushing aside the sealing strip for passing, at activation of the coupling, the fluid to said coupling beyond the sealing strip for further distribution to a using place. The sealing strip comprises a spiral spring covered with a sealing body for sealing against the slit. The revolutions of the spiral spring are inclined so that the torsional properties of the spring are used for pushing aside the sealing strip.

Abstract: Apparatus for selectively introducing an additive into a conduit fluid stream, said apparatus comprising an intake means (29A) for drawing said additive from a supply thereof, a metering device (28) for selectively regulating the amount of said additive introduced and a clamp (20) which in use engages a conduit (21) and includes means (36) for dispensing said additive through said conduit wall and into the fluid stream.

Abstract: A throttling device is located in a venting pipe or in a pipe section such as a flue gas pipe or conduit arranged between a boiler and a flue or chimney. The flap is held in a pipe section for removal out of the respective pipe either by tilting or by pulling the flap out. For this purpose the pipe section has a slot which is about semicircular and which, in operation, is covered by a ring section or sector. The throttle flap may be pulled out of the pipe section together with the ring section and with its adjustment drive whereby cleaning of the pipe or conduit is substantially facilitated. Heat losses through the flue are avoided when the throttle flap is closed.

Abstract: An adjustable pneumatic conveyor tube booster valve for banding to the top of a conveyor tube with the booster valve inlet located remotely from the pneumatic conveyor tube. The booster valve is constructed from an annular rubber sleeve which flexes inwardly in response to high inlet pressure in the booster valve to permit flow of air into the conveyor tube but returns to its original shape when the pressure in the inlet drops to prevent back flow of material from the conveyor tube into the booster valve. An adjustable cap permits adjustment of gas flow into the booster tube.

Abstract: An inexpensive valve clamp assembly is provided which inhibits removal of a radiator relief valve. The assembly includes a cable for securing the valve to the radiator, a plate which holds the cable in position relative to the valve, and a clamp to maintain the cable in position relative to the radiator.

Abstract: A sparger for efficient liberation of air when submerged in a body of liquid comprises a pressure-opened closure biased upwardly to constrict the discharge of air under a rigid annular seat member. Air is thus discharged at an exactly predetermined and constant level. When air is supplied to the interior of the sparger at the lowest volume of flow likely to be desired, it overcomes the bias of the closure and opens the closure, equalizing means ensuring uniform distribution. With different forms, the uniform distribution may be at all points around the periphery of the seat, at selected points, only, or at selected points when the air flow is low, and all around the periphery at high volume. The bias toward closed position may be supplied by the resiliency of the valve, or by buoyancy action, or both. A predetermined back pressure substantially constant through all flow rates can be provided by using buoyancy alone. The equalizing means may be a parallel-movement mounting or movement limiting means.

Abstract: A fluid flow controlling butterfly valve assembly is disclosed which comprises a valve body defining a through passage for fluid, a butterfly valving member supported within the body, a shaft extending transversely through the passage and drivingly connected to the valving member, and a shaft supporting structure rotatably supporting the shaft in the body while sealing against leakage from the valve.In a preferred embodiment the shaft supporting structure includes a band extending about the body and defining recesses aligned with shaft portions emerging from the body. Resilient flexible elements are disposed within the recesses and compressively engage the shaft and body to provide both bearings and seals.

Abstract: Valve for use with a tubular chemical reactor operating at pressures of over 1000 bar and temperatures of more than 250.degree. C. The actual wall thickness of the lower valve part within the area of the inlet/outlet duct is at least 35% less than the wall thickness of adjacent wall areas, the undersize being compensated by the prestress applied by the tightening bolts of the upper valve part. A lens type seal is located between the lower valve part and the upper valve part and simultaneously (1) seals the connection between the valve parts and (2) comprises the valve seat. The thermal conductivity of the seal is at least 50% lower than that of the valve material.

Abstract: An improved device for enabling a small diameter milking hose to be removably connected to a larger diameter manifold of a milking system through an opening in the wall thereof and for automatically closing the opening through the wall of the manifold when the milking hose is not connected thereto is disclosed. The method of making such device primarily from flat spring steel stock by simple stamping and forming techniques is described and preferred structural features of the completed device providing for optimum performance in use, inexpensive manufacture and ease of application and removal from the larger conduit are described.

Abstract: Apparatus is provided for pneumatically communicating with a pressurized cable provided with a peripheral opening. The apparatus includes a saddle of resilient material having a cross-section defined by a parabola and the arc of a circle. The saddle is adapted to sit astride the cable in surrounding relationship with the opening. A pneumatic fitting is molded into the saddle in generally parallel relationship with the cable. The saddle is provided with a bore communicating with the fitting and generally perpendicular thereto. The bore communicates with the opening in the cable. A sealing compound is provided between the saddle and the cable and the saddle is held on the cable by a pair of straps holding a metal strip against the saddle. An orientation protrusion is located on the saddle in alignment with the bore and protruding through an opening provided in the strip.

Abstract: A sanitary milk inlet valve for a pipe line milker includes a two-part valve housing with the valve parts having laterally extending flanges which are secured together by bolts to clamp the valve housing at a selected position on a milk pipeline. One valve part encloses a rubber seal which partially surrounds the inlet pipe and which includes a rubber boss with a through aperture which seals the inlet pipe extending into the pipeline or manifold line. The inlet pipe is easily inserted and removed for cleaning purposes. The valve housing part which receives the inlet pipe also includes a spring biased cover which moves under force of a spring to a closed position to seal the inlet pipe opening when not in use. The cover also carries a neoprene rubber seal to seal the opening. When the inlet pipe is inserted in place the cover is displaced and a concave recess in the cover engages the inlet pipe and secures the pipe in place and provides a fluid seal.