Abstract: A vented water storage system (16) is disclosed. A vent (62) is disposed within an elbow (38). A riser pipe (26) extends from the elbow (38) to a containment (18) having water (22) stored therein. The vent (62) includes an open end (66) that fluidly communicates with the riser pipe (26), and a closed end (70) that is located between a distally located open end (42) of the elbow (38) and the open end (66) of the vent (62). An access port (74) is included on a sidewall (64) of the vent (62) at a location within the elbow (38) that reduces the potential for being able to introduce a liquid into the open end (42) of the elbow (38) in a manner such that this liquid will reach the containment (18).

Abstract: A system for mixing a first gas flow and a second gas flow includes a conduit defined by a wall for communicating the first gas flow therethrough, an inlet passing through the wall of the conduit for introducing the second gas flow into the conduit, and a valve body disposed within the conduit, the valve body being displaceable in a longitudinal direction with respect to the conduit at the inlet. The conduit includes a bend downstream of the body with respect to a direction of the mixed gas flow. A holder is operably connected at a first end thereof to a downstream end of the valve body, the holder passing through a bore in the wall of the conduit at the bend. An actuator is operably connected to a second end of the holder, the actuator causing, via the holder, the valve body to be displaced in the longitudinal direction.

Abstract: A tube defines a cavity. Normally-open fitting (2) and normally-closed fitting (3) are respectively fitted into the tube to form ports (34),(35) having seats (40),(13). A body secured to fitting (3) defines a chamber (26) to which port (35) leads. Body (4) defines holes (27),(30) leading into chamber (26). A solenoid assembly (6) is slidable within chamber (26), includes a coil, segregates chamber (26) to chambers (7),(29) which communicate respectively with holes (27),(30) and defines a chamber (16), a seat (18), a seal (14) and an orifice (33) leading between seat (18) and seat (13). A rod-piston assembly includes a rod (37) attached to: assembly (6), sealably passing through body (4) into cavity and preventing gas communication between cavity and chamber (7); and a piston with a seal (39). A magnetic rod (15) slides within chamber (16). Spring (17) urges rod (15) towards seat (18) to seal orifice (33). Spring (12) urges assembly (6) towards seat (13) to seal port (35).

Abstract: A valve assembly for preventing backflow and siphoning in a plumbing line, the valve assembly comprising a valve body including a first end having a first aperture for receiving liquid from a supply source, a second end having an exit port for releasing liquid to a demand source, and a second aperture for receiving air. The assembly further includes a variable thickness diaphragm located within a valve chamber having a first and a second portion, the first portion for influencing the flow of liquid in the first aperture and the second portion for influencing the flow of air in the second aperture, the second portion having a flex line for enhancing the amount of flexing provided by the second portion. The first portion further includes a protuberance for enhancing the strength of the diaphragm during low vacuum sealing conditions.

Abstract: A microelectromechanical (MEM) flow control apparatus is disclosed which includes a fluid channel formed on a substrate from a first layer of a nonconducting material (e.g. silicon nitride). A first electrode is provided on the first layer of the nonconducting material outside the flow channel; and a second electrode is located on a second layer of the nonconducting material above the first layer. A voltage applied between the first and second electrodes deforms the fluid channel to increase its cross-sectional size and thereby increase a flow of a fluid through the channel. In certain embodiments of the present invention, the fluid flow can be decreased or stopped by applying a voltage between the first electrode and the substrate. A peristaltic pumping of the fluid through the channel is also possible when the voltage is applied in turn between a plurality of first electrodes and the substrate.

Abstract: A chemical processing system includes a mixing chamber coupled to the chemical processing system. A stream of first process gas and a stream of second process gas are introduced into the mixing chamber. The stream of first process gas and the stream of second process gas interact with each other to form a mixed process gas, which is supplied to the substrate for processing thereof. A method of mixing process gas in a mixing chamber of a chemical processing system is provided. The method includes injecting a stream of first process gas and a stream of second process gas into the mixing chamber, causing the streams of the first process gas and the second process gas to interact and mixing the first process gas and the second process gas in the mixing chamber to form a mixed process gas. A mixing system is also provided.

Abstract: A method and apparatus for cooling a clutch of a motor vehicle by controlling a valve through which a coolant circuit is coupled with a pump circuit. The valve includes a control piston that is movable at least to actuate a connection between the coolant circuit and the pump circuit.

Abstract: An embodiment of the present invention is a method for creating and maintaining a partial vapor pressure in a sample chamber of a sorption analyzer. A first dry gas flow is purged from a first mass flow controller through a saturator to produce a near-saturated gas flow. The near-saturated gas flow is mixed with a second dry gas flow from a second mass flow controller to produce a mixed gas flow with a predetermined partial vapor pressure. The mixed gas flow is directed into the sample chamber. If the lowest possible vapor pressure is required in the sample chamber, the first dry gas flow is directed around the saturator to the sample chamber and vapor migrating from the saturator is vented to the atmosphere.

Abstract: A vacuum breaking device includes a housing, a sealing base, a floating cup and a sealing ring. The housing has a liquid inlet, a liquid outlet and an air passageway. The sealing base is installed in the air passageway, and the floating cup is installed in an inner chamber of the sealing base. The sealing ring is fitted around an upper end of the floating cup for properly sealing the outer-air inlet in the upper portion of the sealing base and communicating with the inner chamber. The floating cup has an annular flange for increasing the buoyancy of the floating cup, so that the outer-air inlet may be quickly sealed up. The annular flange has plural air paths, so the vacuum condition may be broken immediately when a vacuum pressure is produced in the device.

Abstract: A device for fluid processor comprises a plate-shaped base material, a micro conduit network formed in the base material and formed of a first micro conduit and second micro conduits intersecting with the first micro conduit, a valve provided in each of conduit portions and a valve control mechanism. The valves in the conduit portions are closed, whereby a fluid running route is set, thereby forming a fluid processor that an intended processing is conducted by circulating a fluid through the running route. A fluid suspending cavity is preferably formed at each of the intersections of the micro conduits. A fluid running route setting apparatus is equipped with a conduit portion opening and closing mechanism having a function that individual valve control mechanisms in the device are driven, and the conduit portion opening and closing mechanism is driven by indication of fluid running route setting to a computer.

Abstract: Various embodiments of a toilet fill valve lock and method for adjusting the fill water level in a toilet are provided. In one embodiment a toilet fill valve includes a riser that extends along an axis and an inner shaft that is disposed along the axis between the axis and the riser. The toilet fill valve further includes a lock that is moveable toward and away from the axis and which can limit the movement of the riser relative to the inner shaft about the axis when in a locked position.

Abstract: In one embodiment, a frost-free sillcock is provided. The sillcock has a single handle which rotates to control the temperature of the discharged fluid. The handle also moves axially toward and away from a mounting surface to control the volume of fluid discharged from the sillcock. Furthermore, the sillcock has valve components disposed on the inside of the mounting surface which can be serviced from outside of the mounting surface.

Abstract: The present invention is a side-mounted position indicator for use with a flapper check valve. The indicator is located outside the valve body and attaches to an internal, cylindrically-shaped roller that allows limited rotation about one axis. This roller has a tripper rod that extends from one side of the roller and has a round, non-marring plastic ball on its opposite end. The ball is held in contact with the valve flapper using a mechanical spring. A separate flush port is provided to allow for periodic internal cleaning without substantial disassembly.

Abstract: A dispensing valve assembly with a housing having a plurality of inlet passageways connectable at a respective upstream end to a respective supply source. Each inlet passageway is in communication with a pressure responsive valve element. The valve element is biased to abut a discharge valve seat in a closed position about an upstream end of an outlet passage. The valve element is moveable to an open position when pressure in its respective inlet passageway exceeds a predetermined value. Each outlet passage is in fluid communication with a common dispensing outlet.

Abstract: A multifunctional regulator provides a housing having an inlet passage joined with an outlet passage through a poppet valve. The housing has a control diaphragm separating the control chamber into a first volume and a second volume and depending on the differential pressure between the two volumes, the diaphragm will push open the poppet valve. Pressurizing and depressurizing valves join the first volume with the inlet and outlet passages, whereby, with an inlet pressure level within the inlet passage greater than an outlet pressure level within the outlet passage, and with the pressurizing valve admitting the inlet pressure level to the first volume, the diaphragm is displaced into the second volume thereby forcing the poppet valve to open and thereby raising the outlet pressure toward the inlet pressure with fluid flow from the inlet to outlet passages.

Abstract: A pressure relief check valve system includes a valve body, a flapper, a magnet, an electromagnet, and a pressure sensor circuit. The flapper is rotationally mounted on the valve body and is movable between a closed position and an open position. The magnet is coupled to the flapper, and the electromagnet is coupled to the valve body. The pressure sensor circuit is adapted to sense one or more fluid pressures and is operable, based on the one or more sensed fluid pressures, to selectively supply or interrupt the electrical current to the electromagnet. The electromagnet is coupled to receive the electrical current and, upon receipt of the electrical current, either magnetically attracts or does not magnetically attract the magnet, to thereby hold the flapper in the closed position or allow flapper rotation to the open position, respectively.

Abstract: A double-walled flexible dispenser sump connection system prevents fuel leaks into a dispenser sump located below a fuel dispenser. An inner flexible connector and an outer flexible connector are configured such that the dispenser sump connection system may be installed on newly constructed fuel delivery systems or be retrofitted onto existing fuel delivery systems in order to bring them into compliance with recently environmental regulations.

Abstract: The fuel cutoff valve comprises a valve support on the upper part of the float, and the seat member is mounted on the valve support. The valve support has the bending space that has an inner diameter larger than the outer diameter of the seal part. The seat member is formed from a rubber material, has a side wall formed in a cylindrical shape from the outer periphery of the seat part and a stopper on the side wall, forming the mounting space by being formed in an almost a rectangle shape cross section, and being supported on the valve support by fitting the valve support on the mounting space. The seat part is elastically deformed in the bending space direction when set on the seal part and closes the connection path.

Abstract: A pressure regulator is provided. In one embodiment, the pressure regulator includes a housing having a supply port for receiving a pressurized medium within the housing and an outlet port for outputting the pressurized medium to a downstream device. The housing of this embodiment also includes a vent port for venting the pressurized medium from the housing. The pressure regulator of this embodiment further includes two pistons disposed within the housing, wherein one piston controls flow of the pressurized medium through the supply port, and the other piston controls flow of the pressurized medium through the vent port, based on the level of pressure within the housing. Other embodiments of pressure regulator devices and systems are also provided.

Abstract: A backpressure-protected valve suitable for subsea well treatment chemical injection applications includes an improved gate valve, a check valve and a pressure compensator responsive to ambient hydrostatic pressure. The check valve may comprise a poppet valve in a detachable outlet body. The pressure compensator comprises a free piston in a cylinder. The portion of the cylinder on one side of the piston is exposed to seawater whereas the portion of the cylinder on the opposing side of the piston is filled with a selected hydraulic fluid. In this way the valve actuator is not exposed to the corrosive and/or contaminating effects of seawater.