Abstract: A torque transfer assembly comprising a drive shaft and a driven shaft and a dielectric insert arranged to be positioned between the drive shaft and the driven shaft, the insert assembly comprising a body of dielectric material shaped to form an insulating layer and configured to engage, respectively, with a first shaped engagement feature on the drive shaft and a second shaped engagement feature on the driven shaft, in torque transfer engagement, the insulating layer providing a dielectric barrier between the drive shaft and the driven shaft.

Abstract: A pressure vessel defines an opening with a shoulder around a periphery of the opening. A door is configured to regulate access to the opening. The door is configured to compress against the shoulder when in the closed position. A first seal is between the door and the shoulder. The first seal touches an interior side of the door and the shoulder when the door is in the closed position. The first seal is configured to seal fluid within the pressure vessel. A second, active seal surrounds a periphery of the opening. The seal is actuable between an engaged position and a disengaged position regardless of a position of the door. The second, active seal touches the periphery of the door, perpendicular to the first seal, when in the engaged position and the door is in the closed position. The second, active seal is configured to seal fluid within the pressure vessel.

Abstract: A compact valve block for a chemical container wherein the coaxial valve block has a housing that can accommodate three valve control mechanisms thus allowing for quick and effective purging without the need for an additional external conduit, valves, and coaxial injector. The advantage is a greatly reduced amount of wetted surface area inside the valve block leading to a significant decrease in the time it takes to purge a system thus allowing for quicker times to change chemical containers.

Abstract: A method of cutting and removing a section of prestressed concrete cylinder pipe and then installing a replacement valve while the pipeline is fully pressurized uses a replacement valve body (22) with two cylinders (223, 225) that match the openings of the cut pipe (35). Inside each of the two cylinders (223, 225) is a cut-covering assembly (62) which includes a cylindrical elastomeric seal (26) and spring tube (25), and a cross brace (27) extends between two surfaces within the spring tube (25).

Abstract: A multi-port rotary disc valve includes a valve housing having chamber walls that segregate an internal space of the housing into subchambers that each provide a portion of one or more fluid paths through the valve housing. The valve housing includes valve ports, where each valve port communicates with a subchamber and is an axially-extending through hole that resides in a plane that is common to all valve ports. The valve also includes a diverter assembly that is disposed in one of the subchambers and is configured to control fluid flow through the valve housing. The valve also includes seal assemblies disposed in the chamber so as to be aligned with the diverter assembly along a rotational axis of the diverter assembly.

Abstract: Apparatus (2) for monitoring a set of fuel dispensers (101, 102, . . . 10N) of filing stations (11, 12, . . . 1M), for providing fuel stored in tanks (11) to vehicles, may include interfaces (21) to receive measurements from output probes (301, 302, . . . 30N) measuring fuel flowing through nozzles (111, 112, . . . 10N); measurements from amount probes (31) measuring a stored amount contained within the tank; and receipt data of fuel delivered; a memory (22) to store at least part of said measurements, and a computing means (23). The computing means may be configured for: determining two subsequent fuel deliveries for which stored amounts measured at the start of said deliveries are substantially equals; determining a suspicious situation by comparing said receipt data corresponding to said subsequent fuel deliveries with the sum of measurements provided by said output probes during the time period between these two subsequent deliveries; and triggering an action when a suspicious situation is determined.

Abstract: A sensing device for a hydrant can include a sensor located entirely within an interior cavity of a hydrant body of the hydrant and configured to measure a property of a fluid of a fluid distribution system and an antenna in communication with the sensor and positioned within the interior cavity.

Abstract: A control valve for at least one sanitary fitting that contains a body having at least one inlet (3) for a liquid; a diaphragm valve for opening and closing a flow channel of the control valve, the diaphragm valve having a diaphragm and a counterpressure chamber connected to the at least one inlet, and a pilot orifice being formed in the diaphragm, which pilot orifice connects the counterpressure chamber to the flow channel; a multi-port valve disposed downstream of the diaphragm valve and having a plurality of outlets for the liquid; and a controller for controlling the diaphragm valve and the multiport valve, the controller containing a control rod extending through the pilot orifice of the diaphragm, wherein the control rod can be adjusted in a longitudinal direction for controlling the diaphragm valve and can be rotated for controlling the multiport valve.

Abstract: A ventilation treatment device and a ventilation-control method are provided. During use, when a headband contacts a headrest, a first valve assembly contacts a second valve assembly to open first air holes and second air holes, thereby communicating a first chamber with a second chamber, such that air from an air source into the first chamber enters the second chamber and further enters a respiratory chamber of a patient connecting apparatus for inhalation by a patient; and when the headband is separated from the headrest, the first valve assembly and the second value assembly are separated to close the first air holes and the second air holes, thereby preventing the air in the first chamber and the second chamber from flowing out through the first air holes and the second air holes, respectively.

Abstract: A rotary valve rotated by an arm connected to a piston being driven by the pressurized fluid, either water or air. The orientation of the valve body in the valve housing will direct the fluid in one of two directions to move the piston. The arm of the rotary valve is connected to a cam that rotates a shaft connected to the valve body. Two cam rollers are biased towards the outer surface of the rotating cam member. The cam rollers provide a force to the cam to aid in the changing of the orientation of the valve body. There are two bump outs on the cam that correlate to the end of the piston movement so that the rotary valve does not stop at an end point of the piston stroke. The rotary valve may be is utilized in a chemical dosing or chemical application device that is driven by pressurized fluid.

Abstract: A valve assembly that includes a gate valve and an injection fitting. The gate valve has a lower body disposed between and fluidly coupled to a first pipe and a second pipe. The first pipe resides upstream of the lower body and the second pipe resides downstream of the lower body. The injection fitting is coupled to a side of the lower body of the gate valve. The injection fitting receives a sealing fluid to be flowed to the lower body of the gate valve to seal at least a portion of the gate valve.

Abstract: A refrigeration cycle apparatus includes a compressor, a four-way valve, a first outdoor heat exchanger, a first expansion valve, and an indoor heat exchanger. The four-way valve includes a casing, a first flow channel, a second flow channel, a flow channel switching piston, and a wall portion. The flow channel switching piston is configured to slide along an inner surface to switch between passing the refrigerant through the first flow channel and passing the refrigerant through the second flow channel. The wall portion is configured to slide along the inner surface together with the flow channel switching piston and is disposed with a space between the flow channel switching piston and wall portion to cover the flow channel switching piston.

Abstract: A submersible pump assembly that is capable of transporting water from a body of water, and methods of use thereof, are herein disclosed. The pump assembly includes a submersible pump, a power source for the pump, and a hose that pumps water from the body of water to a location on land. In certain embodiments, one or more filters may be used to remove particulates from the water prior to entering the submersible pump. Further, an anchor and warning pole may be incorporated to prevent the submersible pump from being displaced, and to provide notification to others in the water of the presence of the submersible pump and anchor.

Abstract: A plug-in pump installation structure of a cooling distribution unit is disclosed. A pump seat is disposed in a machine case and has a fixed joint. A plug-in pump has a pump main body and a moveable joint. The plug-in pump is plugged or removed relative to the pump seat through the moveable joint and the fixed joint being connected or released. One distal end of each rotary arm of a handgrip has a latching hook. The rotary arms are pivotally connected at opposite sides of the pump main body. When the handgrip is folded on the machine case, the latching hook abuts against a protrusion disposed on a block piece of the machine case, when the handgrip is rotated to be away from the machine case, the latching hooks of the rotary arm is released from the abutted protrusion.

Abstract: A method includes initiating a gas flow of a first gas parallel to a wall of an interface module to create an air curtain across an opening defined in the wall. The method includes moving an interface door to reveal the opening, wherein the air curtain restrains a second gas within the interface module from passing through the opening. The method includes transferring a semiconductor wafer through the opening and moving the interface door to cover the opening. The method includes halting the gas flow of the first gas after moving the interface door to cover the opening.

Abstract: In an implementation, a hydraulic valve includes a valve body, a cylindrical chamber within the valve body, and a cylindrical spool within the chamber. The spool is rotatable between at least a first position and a second position about a longitudinal axis parallel to a longitudinal axis of the chamber. The spool includes a landing and an eccentric channel that extends around a portion of an outer circumferential surface of the landing. In the first position, an inlet and an outlet of the hydraulic valve are fluidly coupled by the eccentric channel to allow a flow of a hydraulic fluid circumferentially around the landing from the inlet to the outlet. In the second position, the inlet and/or the outlet are obstructed by another portion of the outer circumferential surface of the landing to prevent the flow of the hydraulic fluid from the inlet to the outlet.

Abstract: A valve bonnet defines a packing box having an inner surface Roughness Average (Ra) of 0.15 or less, for example, between 0.10 and 0.15. Multiple Polytetrafluoroethylene (PTFE) packing rings are in a packing stack. A packer is bolted to the bonnet and extends into the packing box. The packer is configured to apply a packing pressure on the packing, for example, between 100 megapascals (MPa) and 200 MPa. Such arrangements can allow for high pressure valves, for example valves that can retain up to 10,000 pounds per square inch (PSI) of pressure or up to 15,000 PSI.

Abstract: A bypass valve includes a base defining a base sealing surface, the base defining an upstream utility bore, a downstream utility bore, a meter inlet bore, and a meter outlet bore each extending into the base sealing surface; and a selector defining a selector sealing surface and a front surface, a primary passage and a secondary passage defined within the selector between the selector sealing surface and the front surface, the primary passage being isolated from the secondary passage, the selector defining at least one primary passage bore extending into the selector sealing surface and connected in fluid communication with the primary passage, the selector defining at least one secondary passage bore extending into the selector sealing surface and connected in fluid communication with the secondary passage.

Abstract: The invention relates to an agricultural sprayer valve unit. An electronically controlled control valve and a passive overflow valve serially connected in fluid communication are arranged in the agricultural sprayer valve unit between a primary line and a secondary line. The agricultural sprayer valve unit may be used for any agricultural sprayer valve device, in particular in connection with the discharge of a fluid such as water, a fertilizer, an insecticide, a weedkiller and the like in agricultural or fruit or vegetable cultivation.

Abstract: A method of cutting and removing a section of prestressed concrete cylinder pipe and then installing a replacement valve while the pipeline is fully pressurized uses a replacement valve body with two cylinders that match the openings of the cut pipe. Inside each of the two cylinders is a cut-covering assembly which includes a cylindrical elastomeric seal and a mechanical linkage to move the seal in and out of the cut pipe. The replacement valve body further includes a rotatable valve in a central portion of the valve, and when the cylinder ends of the replacement valve body are positioned adjacent the bores of cut pipe ends, the valve can be rotated to move linkage assemblies that control the elastomeric seals in and out of each of the cut-covering assemblies into the bores of the cut pipe ends, thereby covering gaps created when the pipe was cut and placing the pipe ends in fluid-tight engagement with the replacement valve body.