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| Number | Title | Issue Date |
| 8443838 | Refrigerant control valves A refrigerant valve has a body with a through bore. Multiple tubes have openings aligned in a ring around a middle of the bore. The tubes lead to larger channels in the body. A needle assembly inserted through an end of the bore reciprocates a needle with a stepper ... | 05/21/2013 |
| 8393355 | Short stroke control valve A short stroke flow control device or valve which is adapted to provide velocity control trim in a short stroke. The valve constructed in accordance with the present invention comprises multiple disk stacks or cages which are separated from each other by intervening... | 03/12/2013 |
| 8322372 | Flow force reduction by incremental pressure drop A fluid flow control device for improving, for example, valve operation by reducing “error forces” occurring due to fluid communication between ports of a valve having two or more ports. Incremental pressure drop passages bleed incrementally the flow of fluid be... | 12/04/2012 |
| 8297315 | Throttle valve Disclosed is a throttle valve (1), having a housing (2), comprising an inlet opening (3) for a fluid under an inlet pressure, a throttle (4), by means of which the fluid can be throttled to an outlet pressure, and an outlet opening... | 10/30/2012 |
| 7802589 | Multirate tubing flow control valve A flow control valve includes a stem extending into an interior bore defined by a wall of a flow control member of the valve, the stem and the wall defining therebetween a cylindrical space allowing fluid communication between apertures formed in differing planes of... | 09/28/2010 |
| 7766041 | Flow force reduction by incremental pressure drop A fluid flow control device for improving, for example, valve operation by reducing “error forces” occurring due to fluid communication between ports of a valve having two or more ports. Incremental pressure drop passages bleed incrementally the flow of fluid be... | 08/03/2010 |
| 7690396 | Multirate tubing flow restrictor A flow control valve for medical liquid is disclosed. The valve has a housing including an inlet, an outlet, and a flow path therebetween. A plurality of flow restrictors are located in the flow path to define a plurality of flow streams of differing flow rates. A f... | 04/06/2010 |
| 7363941 | Fluid control valve device Certain embodiments of a fluid control valve include one or more ceramic components that operate substantially free of tensile stress concentrations along the control surfaces. In some embodiments, a fluid control valve includes a ceramic plug having a set of longit... | 04/29/2008 |
| 7363937 | Replaceable sleeve insert for a choke assembly A replaceable sleeve insert for a choke assembly is disclosed, wherein the replaceable sleeve insert has a tubular member coaxially and sealingly retained within an upper body section of the choke assembly. The tubular member is also sealed against the bonnet. The t... | 04/29/2008 |
| 7353837 | Pressure reducer with adjustable flow restrictor A pressure reducer has a housing comprising an inlet and an outlet in which a flow-around body is arranged in a flow channel connecting inlet and outlet. A flow restrictor is adjustably mounted relative to the flow-around body for varying a flow rate and is movably ... | 04/08/2008 |
| 7347387 | Distributor for distributing a fluid to a number of fluid application nozzles A distributor which is mountable on a vehicle and is arranged for distributing a fluid from a reservoir to a number of nozzles through which the fluid is dispensed. The distributor includes housing, a first number of connections extending from the reservoir to the h... | 03/25/2008 |
| 7331564 | Normally open high flow hydraulic pressure control actuator A solenoid-operated valve includes a valve body defining a valving bore for providing a path of communication between axially spaced inlet and outlet ports. A solenoid assembly is attached to the valve body and includes an inductor coil, a fixed flux guide and an ar... | 02/19/2008 |
| 7320340 | Fluid pressure reduction devices Fluid pressure reduction devices for use in gas and liquid handling systems are disclosed. An example fluid pressure reduction device includes a plurality of cylinders, each having an inner diameter surface and an outer diameter surface and a plurality of apertures ... | 01/22/2008 |
| 7284569 | Steam valve In a steam valve, a strainer is arranged between a valve body and a valve casing in which the valve body is accommodated, and a screen assembly is mounted on an outer peripheral portion of the strainer. The screen assembly includes a temporary screen unit and a perm... | 10/23/2007 |
| 7284968 | Bidirectional air pump A bidirectional air pump to selectively inflate or deflate an inflatable object has a housing, a pump assembly and a motor. The housing has a controller cover, a pump cover, and a motor cover. The pump assembly is mounted inside the housing and has a centrifugal pum... | 10/23/2007 |
| 7273068 | Electric driven, integrated metering and shutoff valve for fluid flow control A fuel control valve (100) includes a rotary throttling valve assembly (4,7) providing one or more of the benefits of being lightweight, having a relatively low power consumption, having a fail-closed structure and/or zero leakage. The fuel control val... | 09/25/2007 |
| 7264224 | Valve with offset venturi A valve is disclosed having a valve closing member that divides the valve bore into passageways of unequal cross sectional areas when in an open position. A venturi is positioned within the valve bore upstream of the valve closing member. The throat of the venturi m... | 09/04/2007 |
| 7252701 | Method of cleaning electric filter and electric filter The invention relates to a method of cleaning an electric filter and to an electric filter. In the method gas containing particles is fed to a chamber (2) of the electric filter. The gas is further fed to gas channels (5) in an emission system (3 | 08/07/2007 |
| 7240694 | Flow control valve for refrigeration system A flow control valve includes a valve body defining fluid inlet and outlet sections interconnected by a connecting port. A valve unit is disposed in the valve body and is operably connected to an actuator to be moved thereby for opening and closing the connecting po... | 07/10/2007 |
| 7237573 | High pressure, low flow rate fluid flow control An adjustable high pressure, low flow metering valve provides a sleeve extending about a restrictor shaft, the sleeve having a narrow helical groove formed in the inside diameter. A restrictor shaft within the sleeve encloses the groove and forms a sealed helical fl... | 07/03/2007 |
| 7234488 | Valve assembly and method with slotted plates and spherical ball plug A valve assembly, comprises a housing having an inlet, an outlet, and an internal volume; a pair of sealing rings and mounted to the housing; and a spherical plug rotatably disposed within the housing for contact with the seating rings, the spherical plug comprising... | 06/26/2007 |
| 7207352 | Bushing for thermally independent bypass air metering valve A bypass air metering valve is provided with a stationary case flange having a plurality of slots, a bushing positioned within each of the slots, and a metering ring positioned so as to ride on a surface of each respective bushing. Each bushing creates a gap between... | 04/24/2007 |
| 7201188 | Fluted reciprocating ball valve The device described herein is a valve suitable for the control or shut-off of fluid flow in a piping system. It comprises a valve housing having inlet and outlet ports and a cylindrical bore whose axis is slanted at about 90 degrees in relation to the axis connecti... | 04/10/2007 |
| 7201186 | Electronic valve for flow regulation on a cooking burner The gas flow regulating valve (1) is adapted to one cooking burner amongst the several on a cooking hob. The regulating valve member (7) is cylindrical-shaped and coupled to a step motor “M”, which controls the axial displacement “X” thereof th... | 04/10/2007 |
| 7195034 | Fluid trim apparatus and method A noise reducing apparatus and method for handling of fluid comprises a plurality of discs stacked on one another, each disc having a radially inner periphery and a radially outer periphery, and a plurality of fluid flow channels defined on at least some of the disc... | 03/27/2007 |
| 7185675 | Reduced gain thrust control valve A reduced gain thrust control valve for use in a rocket engine has a housing with a fluid inlet and a piston and cylinder unit for controlling a fluid output of the control valve. The fluid inlet is formed by at least one metering element formed in the housing. The ... | 03/06/2007 |
| 7178782 | Quiet opening ball valve A valve uniquely integrates ball valve and throttling valve principals, thus affording quieter stop-and-start operation. A ball held by two seat rings is rotatable ninety degrees and has a diametric bore adjustable between fully closed (0°) and fully open (90°) po... | 02/20/2007 |
| 7174913 | Gas tap for a cooking appliance, with a cover for the rotary shaft The manual gas tap for a cooking appliance is of the type with a conical plug (3) for regulating the outlet gas flow (G), accommodated in a central housing (2a) in the tap body, and has a rotary actuating shaft (4) coupled to the conical ... | 02/13/2007 |
| 7156122 | Rotary ball valve assembly A method of forming a ball valve element for a rotary ball valve assembly, the method comprising the steps of: (a) inserting an impedance element through an insertion opening of a ball valve element into a bore; (b) forming a fluid opening in the ball valve element ... | 01/02/2007 |
| 7152628 | Anti-cavitation valve assembly A valve assembly for reducing cavitation includes a seat disposed within a valve housing intermediate a fluid inlet and outlet thereof. A disc guide is associated with the seat so as to be slidably moveable relative to the seat. The seat includes a wall defining an ... | 12/26/2006 |
| 7146997 | Regulator with flow diffuser A flow-through pressure regulator having a housing, and a divider. The housing includes an inlet and an outlet disposed along a longitudinal axis. The divider separates the housing into a first chamber and a second chamber, and includes a seat, a diaphragm, a retain... | 12/12/2006 |
| 7147203 | Fluid control Fluid control apparatus and method of controlling fluid flow. The fluid control apparatus comprises an elongate tube having a first flow opening at an end of the tube and at least one second flow opening along the length of the tube, and a sleeve arranged to slide a... | 12/12/2006 |
| 7131284 | Automatic defrost controller including air damper control A damper apparatus for controlling airflow between compartments in a two compartment refrigerator having a door includes a controller for controlling opening and closing of a damper; and a door sensor connected to the controller for detecting when the door is open. ... | 11/07/2006 |
| 7130324 | Axial flow type gas laser oscillator A gas laser oscillator achieving a substantial increase in laser output is provided. This gas laser oscillator includes a permeable screen plate at a position of a laser gas passage and can increase the laser output substantially by suppressing and uniformizing lase... | 10/31/2006 |
| 7117894 | Ball valve with high damping of the noise due to fluid passage A regulation ball valve for a fluid flow in which a ball is rotatable to bring a passage thereof from a limit position of full opening of the valve to a limit position of full closure of the valve and vice versa. Present in the passage are perforated baffles that at... | 10/10/2006 |
| 7111642 | Valve having fast and slow acting closure elements A first valve portion and a second valve portion are arranged in series in a flow passage within a valve casing to open and close the flow passage. The first valve portion includes a first valve seat, a first valve element supported to a first valve shaft and adapte... | 09/26/2006 |
| 7104283 | Normally open hydraulic control valve A normally open hydraulic control valve includes: a linear solenoid unit; a spool driven by an output force of the linear solenoid unit to move forward; a valve body in which the spool is fitted; and a return spring for biasing the spool in a retreating direction. T... | 09/12/2006 |
| 7089961 | Fluid energy reduction device A fluid energy reduction device especially for a flow control valve has a fluid inlet and a fluid outlet separated by a plurality of stacked plates in the form of a trim stack. Each plate of the stack has a plurality of rows of discrete, spaced columns that extend t... | 08/15/2006 |
| 7077931 | Method and bleaching line with a main conduit for wash liquor The method is for bleaching cellulose pulp in a bleach line that has at least two bleaching steps. The filtrate distribution is led up through the bleaching line counter-currently to the flow of cellulose pulp established in the bleaching line. A single joint main c... | 07/18/2006 |
| 7073532 | Valve assembly A valve assembly (10) comprises a valve stem (14) with a bore (15) and radial apertures (17), and a sleeve (18) closed atone end and slidable over the valve stem (14) to obstruct the apertures (17). At the end of the ... | 07/11/2006 |
