Abstract: A throttle device to decompress a refrigerant and to deliver the refrigerant to an evaporator, may have an opening level of a needle valve controlled following a condensation pressure. Inside a case including a primary chamber connected to the condenser and a secondary chamber connected to the evaporator, a valve seat formed with a port and a guide integral to the valve seat are provided. A spring to energize the needle valve toward the port side is provided inside the guide. The guide guides the needle valve along a line allowing an opening level of the port to be variable. A space between the guide and the case forms a channel to deliver the refrigerant from the port to the secondary chamber. A rear space of the needle valve within the guide forms an intermediate chamber. An intermediate channel introduces the refrigerant from the port into the intermediate chamber.

Abstract: A blow case with an inlet pipe positioned to gravity direct debris to an outlet pipe. The inlet pipe having a discharge end sealed by gravity open clapper style check valve that is closed by activation of pneumatic pressure through a float style pneumatic valve. The check valve has a top mounted access port and aperture allowing for direct above ground servicing access to both the clapper inside the valve and has a removable clapper and access port for servicing the outlet pipe. The float style pneumatic valve is also top mounted for ease of service and removal and is remotely positioned from the outlet pipe to allow for removal of the valve for flushing of the debris from the blow case.

Abstract: A system and method for adjusting a position of an oil-water interface layer. A vessel, such as a free water knockout or a treater used in the processing of heavy oil, contains a fluid comprising the interface layer. A nuclear densitometer is positioned to obtain density measurements of the fluid at various heights along the vessel. Based at least in part on these density readings, a valve controlling flow out of a water discharge port on the vessel may be actuated, with the flow of water through the water discharge port being inversely proportional to the height of the interface layer.

Abstract: An apparatus for detecting an oil level and a method for controlling the same, an apparatus for detecting oil flow and a method for controlling the same, and a method for controlling oil return using the detected oil level and the detected oil flow are disclosed. The level of oil stored in a compressor is measured at two or more positions. The frequency comparison scheme using two electrodes can correctly detect the level of oil stored in the compressor, a refrigerant state, and the level of mixed oils, and can determine an internal state of the compressor and a normal or abnormal state of the oil return system, such that the oil return control can be actively controlled. The flow of oil in the oil return pipe is detected so as to determine whether the oil is normally supplied in real time, such that a malfunction of the compressor is prevented and a valve state can be checked.

Abstract: An dual acting solenoid valve (DASV) is a device for controlling mediums as gases or fluids through two valves simultaneously using a dual position latching solenoid operated with a bi-stable permanent magnet activation system (BSPMAS) to allow the DASV to be electrically energy efficient and power versatile.

Abstract: A first electrode coolant path is configured to cool a first welding electrode by liquid coolant flowing from a supply path through the first electrode coolant path to a return path. A second electrode coolant path is configured to cool a second welding electrode by liquid coolant flowing from the supply path through the second electrode coolant path to the return path. Three or more valves are configured to stop or reduce liquid coolant flow through the first or second electrode coolant path and configured to stop or reduce liquid coolant backflow from the return path when the first or second welding electrode is at least partially detached. At least one valve is coupled in the first or second electrode coolant path. A drawback apparatus generates a suction force to draw liquid coolant away from a gap formed when the first or second welding electrode is at least partially detached.

Abstract: A disposable dental valve device is disclosed having a valve body having a tip receiving end, a hose receiving end, a lumen formed between the tip receiving end and the hose receiving end, a partial opening formed in the valve body, and a rotatable valve sealing body adapted to being inserted into the partial opening, the rotatable valve sealing body having a bore for alignment with the lumen formed between the tip receiving end and the hose receiving end, the bore having a tip receiving opening and a hose receiving opening, the rotatable valve sealing body having a check valve positioned on the tip receiving opening, and the rotatable valve sealing body having a top and a handle portion connected to the top.

Abstract: Vessel closures having a variety of inserts for aseptically sealing vessels. The vessel closures have a body with one or more apertures, one or more inserts extending axially through the one or more apertures, and a cast seal surrounding the inserts. The cast seal is preferably east silicone. The vessel closures may have one or more anchors securing the inserts to the body of the vessel closure. Also disclosed are methods of manufacturing vessel closures and a method of using the vessel closures disclosed herein for circulating fluids into and out of a vessel while also having the ability to regulate the temperature of the pumped fluid.

Abstract: A controller for a vacuum sewage system includes a housing having multiple chambers. Certain chambers are maintained under atmospheric pressure or vacuum prior to activation of the controller. Ports, valves, orifices and air flow paths located in the housing control the rate of air flow between groups of the chambers during activation of the controller.

Abstract: The present invention provides a hinged valve, comprising a handle, a valve body, a valve stem, a valve core, sealing rings, guide and a valve cover. The valve core is connected to the valve body by means of a hinge such that the valve core will be rotated around a rotation axis of the hinge. A locking hook and a positioning hole are provided on the valve stem. A positioning column, elastic buckles and guiding slot are provided on the guide. The positioning column is connected to the positioning hole of the valve stem and the guide is elastically assembled to the body of the valve stem under the effect of the elastic buckles of the guide, such that the guide and the valve stem will move synchronously without motion relative to each other. Rotating shafts and a guiding post are provided. The rotating shafts are rotatably connected to the connecting holes.

Abstract: A retaining mat is suitably sized to stabilize a toilet while the toilet is being replaced or installed. The mat prevents damage to adjacent tile, carpet, wood, or other flooring during toilet replacement. The mat includes an encircling retaining lip so as to form a catch basin to receive any water which may escape from the toilet.

Abstract: A fire engine hose connector system and a method for using the system are reported. The system allows for rapid connection between the fire hose and the fire engine, and more importantly the system enables even more rapid disconnection. The fire engine and firefighting personnel may make a rapid escape form an overtaking wildfire. The ability to rapidly disconnect and escape from the fire scene allows the fire engine and personnel to access hydrant supplies that would otherwise not be available due to safety procedures that preclude connection when the long disconnect time requirements of prior art connectors place the escape of the fire engine and personnel at risk in a rapidly moving fire. The connector further includes a means to bend the connector for stress relief and ease of handling and multiple safety interlocks.

Abstract: This disclosure relates generally to valves, and more particularly, to gas valve assemblies. In one example, the valve assembly may include a valve body with a fluid path, one or more valves or valve sealing members positioned across the fluid path, and one or more pressure sensors in fluid communication with a fluid path of the valve assembly. The valve assembly may include a valve controller in communication with the pressure sensors, where the valve controller may be configured to compare a measure related to a pressure sensed by the one or more pressure sensors to a pressure threshold value (e.g., a high pressure threshold value, a low pressure threshold value, or other pressure threshold value). If the measure surpasses the threshold value, the valve controller may provide a predetermined output signal indicating a pressure event has occurred, such as a high or low gas pressure event.

Abstract: An insert is rotatable relative to a housing to transition the stopcock between different operational states with various different ports being open or closed. The insert includes a manifold shaft which resides within a hollow core of a hub of the housing. The openings are brought into and out of alignment with ports in the housing to cause the stopcock to transition between operational states with two or more of the ports being open or all of the ports being closed. The manifold shaft and hollow core include either detent slots or detent ribs thereon which coact together to cause the ribs to reside within the slots when the insert is rotated to one of the desired operational states, and for the ribs and slots to be out of alignment when outside of one of the desired operational states. The stopcock thus tends to snap into desired operational states.

Abstract: A valve opening setpoint corrector and a correction table storage are provided in a flow rate controlling valve. A correction table indicating valve opening correction values corresponding to combinations of amounts of opening of a valve and front-back differential pressures across the valve is stored in the correction table storage. In the valve opening setpoint corrector a correction value acquirer acquires, from the correction table, the valve opening correction value ? that corresponds to the inputted measured value of the valve and front-back differential pressure across the valve and sends it to the setpoint corrector, as a correction value that takes into account the amount of twist in the valve rod. The setpoint corrector corrects, by the correction value taking into account the amount of twist in the valve rod, the valve opening setpoint from the air conditioning controller, sending this corrected valve opening setpoint to the valve opening controller.

Abstract: Reed valve modules and corresponding reed valve assemblies are disclosed. In one embodiment, the reed valve module includes a body having a single or a plurality of sealing faces, a seat and flow passages from the seat to the sealing face(s). The reed valve module also includes one or a plurality of petals. In some embodiments, the module further includes a petal guard. Novel reed valve assemblies are disclosed incorporating the reed valve modules. One embodiment of the reed valve assembly includes a seat with a plurality of fluid conduits, a retainer plate with a plurality of fluid conduits and a means for receiving recesses between the seat plate and retainer plate. Other devices, systems, and methods related to reed valve modules and valve assemblies are also disclosed.

Abstract: A valve stem packing assembly can seal a valve stem to a valve body having a body cavity. The packing assembly includes a packing ring circumscribing the valve stem within a stem opening extending axially through the valve body. A primary dynamic seal is positioned to seal a dynamic leak path between the packing ring and the valve stem. A secondary dynamic seal is spaced axially apart and functionally independent from the primary dynamic seal and positioned to redundantly seal the dynamic leak path. A primary static seal is positioned to seal a static leak path between the packing ring and the valve body. A secondary static seal is spaced axially apart and functionally independent from the primary static seal and positioned to redundantly seal the static leak path.

Abstract: A pressure control valve includes a main valve unit provided with a main valve element and a valve housing body having a main valve seat capable of seating the main valve element and having a pilot chamber for slidably housing the main valve element. A pilot valve unit is provided with a pilot valve element and a pilot valve seat member has a pilot valve seat capable of seating the pilot valve element and separating the pilot valve element from the pilot valve seat and opening when a pressure in the pilot chamber exceeds a predetermined pressure. The pressure control valve is configured with recessed (concaved) parts that form hydraulic fluid channels between the pilot valve seat member and the pilot valve element when the pilot valve unit is in an open-valve-state at three or more locations so as to be separated by equal angles. Each recess has the same shape.

Abstract: Positive displacement using a connector with dual diaphragms is provided. For example, the connector includes a single fluid flow path, an air chamber and a valve. The single fluid flow path is configured for delivering fluid to a person and configured for receiving fluid from a person. The air chamber configured for expelling air from the air chamber when an actuator is inserted into the connector and for receiving air into the chamber when the actuator is removed from the connector. The valve plug comprises two diaphragms that separate the air chamber from the single fluid flow path. The valve plug is configured for creating positive displacement by returning the valve plug to its uncompressed state when the actuator is removed from the connector.

Abstract: A stand alone ice making appliance or an ice maker within an appliance is provided including a water inlet, a water inlet valve disposed within the water inlet configured to allow water passage when in an open position and configured to prevent water passage when in a closed position, a reservoir in fluid communication with the water inlet, a water level sensor disposed in the reservoir, and a control unit in electrical communication with the water level sensor and the water inlet valve. The control unit is configured to calculate a fluid flow rate using the time between the water inlet valve opening and the water level sensor communicating when a first predetermined water level has been reached within the reservoir, and use the calculated flow rate to calculate a total water inlet valve open time to fill the reservoir to a second predetermined water level.