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| Number | Title | Issue Date |
| 8042572 | Controllable pressure-reducing valve and device for the generation of pressure change signals A controllable pressure reducing valve has a housing which includes an inner chamber extending in the direction of a longitudinal axis and an inlet opening and an outlet opening. The inlet opening and the outlet opening open into the inner chamber at an axial relati... | 10/25/2011 |
| 8011386 | Control valve having “C” seal A control valve having a shiftable valve plug includes a valve body having an inlet, an outlet, a flow passage extending between the inlet and the outlet, and defining a longitudinal axis, a generally cylindrical valve cage disposed within the valve body and sized t... | 09/06/2011 |
| 7681594 | Control valve having “C” seal A control valve having a shiftable valve plug includes a valve body having an inlet, an outlet, a flow passage extending between the inlet and the outlet, and defining a longitudinal axis, a generally cylindrical valve cage disposed within the valve body and sized t... | 03/23/2010 |
| 7448409 | Fluid flow control device having a throttling element seal A fluid flow control device includes a body defining an inlet, an outlet, and a fluid flow path extending from the inlet to the outlet. A valve seat ring is coupled to the body and defines an orifice through which the fluid flow path passes. A cage is also coupled t... | 11/11/2008 |
| 7325781 | Automatic bathroom flushers with modular design A bathroom flusher includes a flusher body, a valve assembly, an electronic control system, and a flusher cover. The flusher body includes an inlet and an outlet, and is designed to accommodate the valve assembly that controls water flow between the inlet and the ou... | 02/05/2008 |
| 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 |
| 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 |
| 7228872 | Nitrous oxide and fuel control valve for nitrous oxide injection system A nitrous oxide and fuel control valve has simultaneous flow control of nitrous oxide from a first fluid-delivery aperture (8) and flow control of fuel from a second fluid-delivery aperture (10) into a mixing nozzle (38) of an intake manifold of... | 06/12/2007 |
| 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 |
| 7188822 | Enclosures for automatic bathroom flushers A bathroom flusher includes a flusher body, a valve assembly, an electronic control system, and a flusher cover. The flusher body includes an inlet and an outlet, and is designed to accommodate the valve assembly that controls water flow between the inlet and the ou... | 03/13/2007 |
| 7156363 | Bathroom flushers with novel sensors and controllers A bathroom flusher (10) includes a body having an inlet (12) in communication with a supply line and an outlet (16) in communication with a flush conduit, a valve assembly in the body positioned to close water flow between the inlet and the outl... | 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 |
| 7104281 | Fluid flow regulation Fluid flow regulation may be achieved by a system including a housing, a first flow throttling area, and a second flow throttling area. The housing includes a flow inlet port, a flow outlet port, and a passage between the ports. The first flow throttling area is in ... | 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 |
| 7086366 | Energy efficient fluid pump A dual pumping element fluid system for an engine or other system which reduces the driving power consumption by unloading one pumping element through the use of recirculation when a fluid pressure target value is achieved. A cross-over port fluid system prevents ca... | 08/08/2006 |
| 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 |
| 7069950 | Noise abatement module using Herschel-Quincke tubes A noise-attenuating module of a valve trim, including: a first divider plate; a second divider plate; and a plurality of flow segment plates disposed adjacent to and in contact with one another. At least one Herschel-Quincke tube flow path is formed by interconnecte... | 07/04/2006 |
| 7055548 | Control valve trim and seat design for valve trim with minimal unbalanced area A fluid control valve trim and seat with a valve plug of a radius of about 0.03 inch, when used in conjunction with a valve seat angle of about 75°, results in minimal unbalance area. The valve trim is provided with pairs of anti-cavitation notches. The notches are... | 06/06/2006 |
| 7028712 | Skirt guided globe valve A skirt guided control valve provides streamlined flow and minimum resistance to flow in flow up and flow down conditions when the valve is open. The skirt guided control valve has a fluid inlet, a fluid outlet, a passageway disposed between the fluid inlet and flui... | 04/18/2006 |
| 7013919 | Throttle device for high fluid pressures A throttle device comprises a tubular outer sleeve having a plurality of outer sleeve circumferential grooves formed on an outer sleeve inner surface and intersecting a plurality of outer sleeve axial grooves formed on an outer sleeve outer surface to form outer sle... | 03/21/2006 |
| 7013918 | Fluid pressure reduction device A fluid pressure reduction device comprises a plurality of stacked disks having a perimeter and a hollow center aligned along a longitudinal axis. Each disk has at least one flow path extending between the hollow center and the perimeter, the flow path including an ... | 03/21/2006 |
| 7007711 | Dispersion nozzle with variable throughput The invention relates to a dispersing device wherein the dispersed material has a variable throughput comprising a jet disperser which comprises at least one inlet for the materials to be dispersed, a chamber with a multiciplicity of openings arranged in rows along ... | 03/07/2006 |
| 6997212 | Choke valve with temperature transmitter A choke valve useful for sub-sea application, having a valve body forming a bore extending therethrough which provides a body inlet, a body outlet and an insert chamber therebetween, and a removable insert assembly positioned in the insert chamber. The insert assemb... | 02/14/2006 |
| 6997211 | Multiple material valve plug for high temperature operation A valve assembly with a multiple-component valve plug is disclosed. The use of multiple materials in the construction of the valve plug provides different rates of thermal expansion in the axial and radial directions thereby enabling the valve plug to have thermal e... | 02/14/2006 |
| 6973941 | Control valve with low noise and enhanced flow characteristics A control valve that reduces noise and controls flow includes a slotted cylindrical skirt and/or a tapered metal ring. The metal ring has a tapered external surface for engaging a matching tapered bore within a valve housing. One embodiment is directed to a control ... | 12/13/2005 |
| 6934976 | Toilet flusher with novel valves and controls A tank-type flusher includes an intake valve, i.e., a fill valve, a diaphragm-operated flush valve, and a pressure control mechanism. The intake valve is connected to an external water source and is constructed to close water flow to a water storage tank at about a ... | 08/30/2005 |
| 6935371 | High capacity globe valve A high flow globe valve with a body defining an interior cavity in communication with a first and second fluid passages. A tubular throttling cage is offset in the cavity away from the second fluid passage and has an open end in communication with the first fluid pa... | 08/30/2005 |
| 6929020 | Fluid pressure releasing system and method A system and method for enabling rapid and controlled releasing of fluid pressure, as for deflating a tire. The system, in an embodiment thereof, enables rapid and controlled deflation of a tire to enable a vehicle to navigate in rough or unstable terrain. ... | 08/16/2005 |
| 6926032 | Pressure-reducing control valve for severe service conditions A severe service condition pressure reduction valve that is resistant to damage by debris carried by high-pressure process fluid stream and operates at acceptable noise levels includes a first stage annular member in the form of a tube or sleeve that is closely fitt... | 08/09/2005 |
| 6926249 | Precision modulating globe valve A precision modulating globe valve for controlling the flow of a fluid from zero to a maximum flow rate. The valve plug of the globe valve includes at least one flow modulating channel recessed from the outer surface of the valve plug. The outer surface of the valve... | 08/09/2005 |
| 6918409 | Spool and poppet inlet metering valve Valve structures include a combination of spool valving and poppet valving. A spool function of the structure regulates the flow of a liquid, such as the flow of fuel to a diesel engine. A poppet function provides a low leakage in the valve in a closed or cut-off st... | 07/19/2005 |
| 6805162 | Erosion reducing valve plug and seat ring A valve arrangement comprises a valve housing, a valve seat and a valve plug. The valve housing defines an interior chamber and a flow opening for respectively receiving and discharging fluid. The seat ring is engaged to the valve housing and defines an angled seati... | 10/19/2004 |
| 6637452 | Valve with self-cleaning trim The seal assembly is disclosed for use with a valve having a trim cage with an inner surface extending along in axis and a plug sized to fit inside the trim cage inner surface, wherein the plug is adapted to move along the axis thereof. A seal ring is att... | 10/28/2003 |
| 6536473 | Choke valve The downstream end of the flow trim cage is formed to provide an inwardly protruding lip. The lip deflects flow inwardly as it leaves the bore of the cage. As a result, erosion of the body, immediately downstream of the flow trim, is reduced.... | 03/25/2003 |
| 6322052 | Ventilation valve The aim of the invention is to provide an improved ventilation valve (8), especially for ventilating a mold (5) in the production of umbrella type insulators (1), so that harmful deformation of the molded body can be avoided during removal from the mold (... | 11/27/2001 |
| 6161584 | High energy loss fluid control device A high energy loss fluid control device includes a plurality of annularly-shaped discs stacked one upon another and a reciprocal plug in slidable contact with the discs. The discs form a plurality of flow passageways extending between an inlet and an outl... | 12/19/2000 |
| 6095192 | Spool valve for fluid control A spool valve is provided with a stem portion that defines a fluid passageway formed by either (a) a single central support having a non-cylindrical curved surface shaped hydrodynamically, or (b) only a pair of sidewalls with, preferably, interior surface... | 08/01/2000 |
| 6082405 | Valve cone, a valve and a valve manufacturing process A valve cone comprises a cylindrical body extending along a longitudinal axis. The body has a cylindrical surface with at least one, axially extending recess. The recess extends inside a contour line between a first end position at a first end of the cyli... | 07/04/2000 |
| 6076552 | Valve structure for hydraulic circuit A valve comprises a spool with a land received in a bore of a valve body. The land is formed with at least one transfer passage. The land and cylindrical inner wall of the bore cooperate with each other to prevent any passage other than the transfer passa... | 06/20/2000 |
| 6047734 | Valve assembly A retrofit tap valve assembly is disclosed for a tap having a tap housing, an axial flow valve seat in the tap housing, a tap spindle adapted to effect sealing engagement between a tap seal and the valve seat, and a spindle housing mounted in the tap hous... | 04/11/2000 |
