Self-proportioning Flow Systems Patents (Class 137/98)
  • Patent number: 9662211
    Abstract: Methods and apparatus for accelerated wear testing of prosthetic heart valves apply non-sinusoidal pressure waveforms. The waveforms may maintain a threshold reverse pressure for a desired duration while limiting a peak reverse pressure. Apparatus may include a fluid impeller such as a bellows or a piston driven by an actuator having a position controlled by a motion control system. The apparatus may include a pressure control system comprising one or more bypass channels and bypass valves controlling a resistance of the bypass channels to fluid flow. The bypass valves may be controlled in real time.
    Type: Grant
    Filed: June 25, 2013
    Date of Patent: May 30, 2017
    Assignee: VIVITRO LABS INC.
    Inventors: Ted Hodson, Satyaprakash Karri, Scott Phillips
  • Patent number: 9434048
    Abstract: An abrasive blasting apparatus comprises a blast pot, a blast media valve fluidly connected to said blast media outlet of the blast pot, a source of pressurized gas, a proportional air valve in fluid communication with the blast media valve and the source of pressurized air, a hose having a blast nozzle at a distal end thereof, and a main control unit fluidly connected to the blast media valve and the air valve. The blast media valve comprises a housing having a blasting media intake, a plunger disposed within the housing, a sleeve disposed between the housing and the plunger, a blast media port in the sleeve, a casing fixedly connected to the housing, a piston disposed within the casing and connected to the plunger, and a base member fixedly connected to the housing. The plunger is movable by the piston with respect to the blast media port.
    Type: Grant
    Filed: February 24, 2015
    Date of Patent: September 6, 2016
    Assignee: Atlantic Design, Inc.
    Inventor: John Russell Roden
  • Publication number: 20150122339
    Abstract: A gas turbine engine includes a first duct, a second duct, and a bladder. The bladder is disposed in the first duct and communicates with the second duct. A first gas flow is capable of passing through the first duct and a second gas flow is capable of passing through the second duct. The bladder is adapted to receive a bleed gas flow from the second duct and inflate within the first duct, thereby decreasing an area in the first duct through which the first gas flow is capable of traveling.
    Type: Application
    Filed: March 11, 2014
    Publication date: May 7, 2015
    Applicant: UNITED TECHNOLOGIES CORPORATION
    Inventors: John R. Buey, Keegan M. Martin
  • Patent number: 9010368
    Abstract: An apparatus comprises a body, a first poppet, and a second poppet. The body comprises a first fluid channel and a second fluid channel. The first fluid channel and the second fluid channel are operable to be fluidly isolated from each other. The first poppet is positioned in the first fluid channel, and the first poppet is operable to be moveable within the first fluid channel. The second poppet is positioned within the second fluid channel, and the second poppet is operable to be moveable within the second fluid channel. The first poppet and the second poppet are operable to be mechanically coupled together such that movement of the first poppet within the first channel is operable to cause sympathetic movement of the second poppet within the second fluid channel.
    Type: Grant
    Filed: September 7, 2011
    Date of Patent: April 21, 2015
    Assignee: Precision Temp, Inc.
    Inventor: Gerry C. Wolter
  • Patent number: 8985132
    Abstract: A balance valve is provided with an asymmetric structure. When the dual-temperature ceramic valve is switched to cold water supply modes, and the hot water line is blocked to make a moveable spool abutted towards a first lateral end wall of a holding space, a cold water channel can thus be formed between the cold water opening of a fixed valve pipe and a second end of the moveable spool with the setting of the asymmetric structure. Hence, cold water supply can maintained. When the hot water line is blocked, the cold water supply function of the balance valve of the present invention could still be maintained for improved convenience and applicability.
    Type: Grant
    Filed: October 10, 2011
    Date of Patent: March 24, 2015
    Assignees: Paijo Co., Ltd.
    Inventor: Ping-Jung Tung
  • Patent number: 8887752
    Abstract: A fuel staging system comprises a splitter valve arranged to split an input fuel stream into a pilot fuel stream and a main fuel stream, the splitter valve comprising a spool slidable within a bore, the spool and bore together defining first and second control chambers, the fluid pressures in which determine the position occupied by the spool, the system further comprising a control line which, in use, controls fuel delivery through a plurality of main burners, the fluid pressure in the control line being a combination of the fluid pressures in the first and second control chambers.
    Type: Grant
    Filed: November 18, 2008
    Date of Patent: November 18, 2014
    Assignee: Goodrich Control Systems
    Inventor: Neil Rawlinson
  • Patent number: 8826659
    Abstract: PCV systems are well known in the art and commonly used in turbocharged engines. The ejector creates a pressure drop for additional pull of PCV gas under boosted conditions of the turbocharger engine. The ejector typically includes a first inlet and a second inlet and a sole outlet. The first inlet pulls air from the compressor of the PCV system. The second inlet pulls air from the cyclone separator of the PCV system. Air exiting the ejector is exited to the intake manifold. However, when the turbocharger of the system is off, fresh air can leak in from the inlet from the oil separator thereby preventing the ventilation of blowby. The unwanted air reduces the efficiency of the turbocharger system. Accordingly, an ejector preventing unwanted fresh air flow is needed in the art.
    Type: Grant
    Filed: September 27, 2011
    Date of Patent: September 9, 2014
    Assignee: Toyota Motor Engineering & Manufacturing North America, Inc.
    Inventor: Tenghua Tom Shieh
  • Patent number: 8740098
    Abstract: The initially cold water streams of a household hot water plumbing circuit are accumulated in a storage container to be thereafter drained off with the cold water stream, at various flow restricted levels, thereby conserving water use. This accumulate may be adjustably admixed into the waste products of a household drinking water purification system, thereby diluting it to acceptable levels that may be useful for washing and the like. Additionally, and/or alternatively, the fresh water stream may be admixed into the water purification waste water stream. Each of these water conserving functions is conformed to be combined in a stepwise manner, thereby accommodating budgetary and use growth constraints.
    Type: Grant
    Filed: October 14, 2008
    Date of Patent: June 3, 2014
    Assignee: Nitroworks Corporation
    Inventors: Steven M. Greenthal, Neal W. Smith
  • Patent number: 8740102
    Abstract: A gas turbine engine valve is disclosed. In one form the valve includes two inlets in fluid communication with an outlet. The valve can include a spool having two lands capable of selectively closing either of the two inlets. The valve can include energy storage devices that initially position the spool within a valve housing. A temperature motor is provided to position the spool based upon a temperature of a mixture of working fluid from the two inlets. A working fluid flowing into the first inlet can be in fluid communication with a second end of the valve; and a working fluid flowing into the second inlet can be in fluid communication with a first end of the valve. A relatively high pressure condition at one or the other of the inlets can be used to alter a position of the valve.
    Type: Grant
    Filed: November 24, 2009
    Date of Patent: June 3, 2014
    Assignee: Rolls-Royce Corporation
    Inventor: Daniel G. Edwards
  • Patent number: 8726924
    Abstract: A flow-control valve has a housing having first and second input ports and respective first and second output ports for respective first and second separate fluid streams and formed between the first and second port with first and second valve seats. Respective first and second valve bodies are axially shiftable in the valve seats, and a coupling element connected axially between the valve bodies moves the valve bodies axially jointly. A diaphragm between the first piston and the housing defines an axially inner compartment into which the first input port opens and between the diaphragm and the housing an axially outer compartment. The first valve body is formed with a passage extending through the first valve body and having an axially extending part opening into the outer compartment and a transversely extending part opening into the housing between the first seat and the first output port.
    Type: Grant
    Filed: October 20, 2011
    Date of Patent: May 20, 2014
    Assignee: Oventrop GmbH & Co. KG
    Inventors: Gerhard Loeffler, Stefan Brambring
  • Publication number: 20140124046
    Abstract: A balance control valve with improved operational sensitivity is accommodated in the holding space preset into the dual-temperature ceramic valve. Annular grooves are located correspondingly to the cold water opening and hot water opening of the fixed valve pipe. An unscaling portion is formed between the annular grooves and the inner wall of the fixed valve pipe in a vertical configuration, and is used to remove scale generated on the exterior of the moveable spool. The setting width of the annular groove is equal to or greater than the width of the cold water opening and hot water opening. With the setting of the annular groove, the contact area of the moveable spool and the inner wall of the fixed valve pipe could be reduced so as to improve the operational sensitivity of the moveable spool, remove the scale and extend the service life of the balance control valve.
    Type: Application
    Filed: January 10, 2014
    Publication date: May 8, 2014
    Applicants: PAIJO CO., LTD.
    Inventor: Ping-Jung TUNG
  • Publication number: 20140116514
    Abstract: A hot melt dispensing system includes a hopper, a delivery line, a shaker, and an air supply line. The hopper stores hot melt pellets and the delivery line delivers the hot melt pellets from the hopper. The shaker agitates the hot melt pellets. The air supply line supplies air that flows through the shaker to produce vibration and additionally flows through the delivery line to create a vacuum that draws the hot melt pellets through the delivery line.
    Type: Application
    Filed: December 5, 2012
    Publication date: May 1, 2014
    Applicant: GRACO MINNESOTA INC.
    Inventors: Joseph E. Tix, Daniel P. Ross, Kyle A. Bottke
  • Publication number: 20140102550
    Abstract: A mixing valve (10) includes a valve body (12) having a hot fluid inlet (14), a cold fluid inlet (16), a mixed fluid outlet (18), and a cavity (20) in the valve body (12) between the inlets (14, 16) and the outlet (18). Mixing valve (10) includes a liner (30, 130, 230, 430, 530, 630, 730, 830) positioned in valve body (12) and a valve member (40, 140, 240, 340, 440, 540, 640, 740, 840) movable therein between a first position restricting the flow of hot fluid and a second position. Liner (30, 130, 230, 430, 530, 630, 730, 830) includes a downstream valve seat (74, 174, 274, 474, 574, 674, 774) that, when engaged by valve member (40, 140, 240, 340, 440, 540, 640, 740, 840), restricts flow of hot fluid past valve member (40, 140, 240, 340, 440, 540, 640, 740, 840).
    Type: Application
    Filed: September 27, 2013
    Publication date: April 17, 2014
    Applicant: Magarl, LLC
    Inventor: Kevin B. Kline
  • Patent number: 8689895
    Abstract: A pilot valve assembly for regulating the output of a first pressure source relative to a second pressure source, a fluid system equipped with the valve assembly, and a method of operating the valve assembly. The valve assembly includes a valve body with inlet and outlet ports and first and second sensing ports. The first and second sensing ports are adapted to sense, respectively, the fluid pressures of the first and second pressure sources. The inlet port is adapted for fluidically connecting to the first pressure source. The valve assembly defines a flow path between the inlet and outlet ports, and has components for allowing fluid flow from the inlet port, through the flow path, and to the outlet port only if the fluid pressure of the first pressure source exceeds the fluid pressure of the second pressure source by a differential by the flow-allowing components.
    Type: Grant
    Filed: March 8, 2012
    Date of Patent: April 8, 2014
    Assignee: Vanair Manufacturing Inc.
    Inventor: Jeff Rohl
  • Publication number: 20140051610
    Abstract: Processes are provided for reducing the hydrodynamic friction of a turbulent brine stream including, for example, the step of injecting a mixture of a finely divided free flowing friction reducing powder into the turbulent brine stream, wherein the particles of the powder have a primary particle size between 10 and 100 microns in average particle diameter, and the brine stream comprises water with at least 90,000 ppm total dissolved solids, wherein the total dissolved solids includes at least 30,000 ppm sodium cations, 10,000 ppm calcium cations, and 1,000 ppm magnesium cations, and wherein the brine has an electrical conductivity of greater than 100.0 mS/cm at 25° C. For use with a harsher brine, the particles preferably have a primary particle size between 10 and 53 microns in average particle diameter. The friction reducing powder may, for example, be a polyacrylamide polymer.
    Type: Application
    Filed: August 16, 2013
    Publication date: February 20, 2014
    Applicant: CORSICANA TECHNOLOGIES, INC.
    Inventors: Houston P. Perry, Brian L. Mueller
  • Patent number: 8646475
    Abstract: The invention relates to a dosing pump unit for mixing a liquid reducing agent with an exhaust gas flow by means of a dosing pump which is connected, on the input side thereof, to a connection connectable to a reducing agent tank and, on the output side thereof, to a pressure pipe and a pipe for returning flow back to said reducing agent tank, wherein a non-return valve which is prestressed against a hydraulic pressure produced by the dosing pump is arranged in the pressure line, the return pipe is connected to the pressure pipe upstream of the non-return valve in the reducing agent flow direction and a first stop valve for selectively closing the return pipe is placed therein.
    Type: Grant
    Filed: December 29, 2005
    Date of Patent: February 11, 2014
    Assignee: Grundfos Nonox a/s
    Inventors: Hans Henrik Jochumsen, Niels Stubager Kiemer, Karim Lindberg, Niels Torp Madsen, Tom Johansen
  • Publication number: 20140026977
    Abstract: One or more techniques and/or systems are disclosed for saturating a gas with a liquid-borne compound. A bubbler container may be configured to contain a carrier liquid, which comprises a desired compound. The container may comprise at least one routing plane, disposed between the top and bottom of the container, which may be configured to allow gas bubbles to travel through a circuitous, routing route. The gas can be introduced to the container at a bottom portion of the container, into the carrier liquid comprising the compound. Carrier gas bubbles formed in the liquid may be forced to travel the routing route to a top portion of the container, where gas saturated with the compound may be collected.
    Type: Application
    Filed: July 25, 2013
    Publication date: January 30, 2014
    Inventors: William Kimmerle, Kyle Kimmerle
  • Publication number: 20130277503
    Abstract: A continuous moldline technology elastomeric control surface and methods are presented. A control surface is coupled to a fluid-dynamic body. An elastomer interface is coupled to the control surface and the fluid-dynamic body such that a joint gap caused by movement of the control surface relative to the fluid-dynamic body is filled.
    Type: Application
    Filed: April 19, 2012
    Publication date: October 24, 2013
    Inventor: Paul F. Geders
  • Patent number: 8499542
    Abstract: A flow balancing valve for a multistage combustor includes a first pressure feedback line, a first burn line, and a first metering port fluidly connected to the first fuel injector. The flow balancing valve further includes a second pressure feedback line, a second burn line, and a second metering port fluidly connected to the second fuel injector. A metering land is located between and defines sizes of the first metering port and the second metering port. An increase in pressure differential between the first pressure feedback line and the second pressure feedback line causes a compensatory movement in the metering land to balance fuel flow for the first fuel injector and the second fuel injector.
    Type: Grant
    Filed: August 17, 2011
    Date of Patent: August 6, 2013
    Assignee: Hamilton Sundstrand Corporation
    Inventor: Thaddeus J. Zebrowski
  • Patent number: 8475550
    Abstract: A method for injecting a chemical, such as an odorant, from a chemical supply into a fluid-containing system such as a natural gas or an LPG pipeline. A tank of odorant is maintained at a pressure above ambient, but below pipeline pressure. An injection conduit communicates the odorant tank with the pipeline. A hydraulic pressure booster is located in the injection conduit for pressurizing the chemical to a pressure above that of the pipeline. Flow-control apparatus located within the injection conduit for metering chemical to be injected into the pipeline is either (a) drip-style metering valve adjustable between a drop-wise setting and a steady-flow setting or (b) a pair of valves one of which is a flow valve allowing larger volumes to be injected and the other which is a drop-wise flow valve for metering smaller volumes of the chemical.
    Type: Grant
    Filed: March 13, 2012
    Date of Patent: July 2, 2013
    Assignee: Sentry Equipment Corp.
    Inventor: Mark Zeck
  • Patent number: 8443826
    Abstract: A demand valve for gas mixing comprises two or more flow control valves that are connected to separate gas supplies. The demand valve includes a common actuation mechanism, such as a diaphragm arranged to displace levers, each of which, in turn, opens and closes proportionally in a substantially constant ratio a respective flow control valve. Inhalation flow drawn through an outlet causes displacement of the diaphragm and hence opening of the flow control valves. Gas from the separate supplies is therefore mixed in a main chamber to a substantially constant composition, regardless of the flow rate demanded, before being dispensed via the outlet.
    Type: Grant
    Filed: May 23, 2008
    Date of Patent: May 21, 2013
    Assignee: Concept 2 Manufacture Design OCD Ltd.
    Inventor: Andrew Tatarek
  • Publication number: 20130098474
    Abstract: A cold and hot water balancing valve structure is provided which can fit common standard specifications. While maintaining the outer diameter and height of the high legged seat of the valve enclosure under existing standard specifications of ceramic valves, the bottom ends of the cold and hot water through holes of the high legged seat are configured with a water inlet pipe set housing groove for fitting an eccentrically positioned assembled water inlet pipe set, which are made up of cold and hot water tubes. When the meshing edges of the tubes are joined together, a balancing valve housing space is defined inside to hold a cold and hot water balancing valve unit. The cold and hot water balancing valve structure fits existing standard ceramic valve specifications, so as to dramatically reduce the production cost of cold-hot balancing valves while realizing the cold and hot water balancing function.
    Type: Application
    Filed: October 24, 2011
    Publication date: April 25, 2013
    Applicants: PAIJO CO., LTD.
    Inventor: Ping-Jung TUNG
  • Patent number: 8408231
    Abstract: A temperature controlling valve contains a body including a cylindrical chamber, a first opening, a second opening, a first inflow channel, and a second inflow channel; a sleeve member retained in the chamber and including at least one first orifice and second orifice; a first cover to close the first opening; a second cover applied to close the second opening; a valve core fitted into the sleeve member, wherein the first cover includes a first projected portion with a first guide tunnel; the first guide tunnel includes a first axial flowing section and a first longitudinal flowing section; the first projected portion includes a first circular back pressure fence; the second cover includes a second projected portion with a second guide tunnel; the second guide tunnel includes a second axial flowing section and a second longitudinal flowing section; the second projected portion includes a second circular back pressure fence.
    Type: Grant
    Filed: January 4, 2011
    Date of Patent: April 2, 2013
    Assignee: Globe Union Industrial Corp.
    Inventors: Tsungyi Lo, Mingchia Wu, Weilong Chen
  • Publication number: 20130048099
    Abstract: The subject invention described herein is directed to an improved fluid powered system for dispensing a selectively variable proportion of additives into a primary fluid supply line such as is commonly encountered in the firefight industry where it is desirable to proportion foam concentrates into a water line. The subject invention features a water driven motor that is integral to a variable displacement additive pump. A proportioning adjustment allows the solution % to be adjusted. Once set, the additive percent varies in direct proportion to the water flow rate in order to maintain a nearly constant solution percentage over a broad flow range.
    Type: Application
    Filed: August 18, 2012
    Publication date: February 28, 2013
    Inventor: Dennis W. Crabtree
  • Publication number: 20130014828
    Abstract: Methods of controllably creating three-dimensional (3D) combined-flow-interface patterns in multi-lane fluidic devices, and systems, apparatuses and software therefor. In one example, the 3D-pattern is created and varied as a function of one or more of the geometry of the inlets to a main fluidic channel in which the 3D-pattern is formed, the Reynolds number of the flows, the dimensions of the main fluidic channel and the inlets, and the spacing of adjacent inlets. In one embodiment particularly disclosed, differing 3D combined-flow-interface patterns are created using a three-lane fluidic device having a fixed inlet geometry. In another embodiment particularly disclosed, differing 3D combined-flow-interface patterns are created using a five-lane fluidic device having a fixed inlet geometry that can be used to effectively mimic variable inlet geometries.
    Type: Application
    Filed: December 22, 2011
    Publication date: January 17, 2013
    Applicant: CARNEGIE MELLON UNIVERSITY
    Inventors: Yong Tae Kim, William C. Messner, Philip R. LeDuc
  • Patent number: 8349038
    Abstract: A system is shown for injecting a chemical, such as an odorant, from a chemical supply into a fluid containing system such as a natural gas pipeline or an LPG pipeline. A tank of odorant is maintained at a pressure above ambient, but below the pressure of the pipeline. An injection conduit communicates the odorant tank with the pipeline. A hydraulic pressure booster is located in the injection conduit for pressurizing the chemical to a pressure above that of the pipeline, the hydraulic booster having a first side which communicates with the chemical in the injection conduit and another, isolated side which is exposed to hydraulic pressure but which is isolated from the chemical being injected. A flow control valve may be located within the injection conduit for metering chemical to be injected into the pipeline.
    Type: Grant
    Filed: March 19, 2009
    Date of Patent: January 8, 2013
    Assignee: Sentry Equipment Corp.
    Inventor: Mark Zeck
  • Patent number: 8307902
    Abstract: A downhole flow control tool 1, includes a flow control member in the form of a sleeve 8, and comprises a main body 2 having a longitudinal internal bore 3 extending therethrough, an upper end 4 having a box section 6, and a lower end 5 with a pin section 7, which enable connection of the tool 1 into a work string. The flow control sleeve 8 is mounted for movement relative to the bore 3 between at least a closed and one of several open positions. The tool body 2 includes several flow ports extending through a wall of the body 2 and spaced around a circumference of the body 2. The tool provides multiple fluid flow control options for directing and splitting fluid flow for example during a drilling operation to clear settled cuttings by suitable location of the tool.
    Type: Grant
    Filed: May 21, 2008
    Date of Patent: November 13, 2012
    Assignee: Specialised Petroleum Services Group Limited
    Inventor: George Telfer
  • Patent number: 8267111
    Abstract: A temperature controlling valve includes a housing and a valve core installed in the valve core, the housing including a fist end wall having a first limiting elements and a second end wall having a second limiting element, and the first and the second limiting elements being fixed to fourth openings on two ends of the valve core to decrease cross sectional areas of the fourth openings for flowing the cold and the hot waters to be less than cross sectional areas of first and second inlets to flow the cold and the hot waters of the housing, such that a pressure in the valve core is gathered well to sense a pressure difference between the cold and the hot waters precisely and balance the pressure difference.
    Type: Grant
    Filed: March 3, 2010
    Date of Patent: September 18, 2012
    Assignee: Globe Union Industrial Corp.
    Inventor: Chaota Yang
  • Publication number: 20120192959
    Abstract: The windscreen wiper water system specified for all types of motor vehicle comprises a water collection device (1) for collecting rain water or car wash water falling onto the motor vehicle as collected water, means (4) for filtering and purifying collected water, a wiper-wash container (5), a supply line (2) for feeding the collected water to the wiper-wash container (5) and means (8, 9, 10, 11, 12, 13, 14) for producing a mixture of wiper-wash water and anti-freeze, depending on the outside temperature, for cleaning vehicle windscreens.
    Type: Application
    Filed: November 22, 2006
    Publication date: August 2, 2012
    Applicants: FROTEK-Vermogensverwaltung GmbH, Rienhold WEIN
    Inventors: Reinhold Wein, Friedhelm Bednarz
  • Publication number: 20120167999
    Abstract: A temperature controlling valve contains a body including a cylindrical chamber, a first opening, a second opening, a first inflow channel, and a second inflow channel; a sleeve member retained in the chamber and including at least one first orifice and second orifice; a first cover to close the first opening; a second cover applied to close the second opening; a valve core fitted into the sleeve member, wherein the first cover includes a first projected portion with a first guide tunnel; the first guide tunnel includes a first axial flowing section and a first longitudinal flowing section; the first projected portion includes a first circular back pressure fence; the second cover includes a second projected portion with a second guide tunnel; the second guide tunnel includes a second axial flowing section and a second longitudinal flowing section; the second projected portion includes a second circular back pressure fence.
    Type: Application
    Filed: January 4, 2011
    Publication date: July 5, 2012
    Inventors: Tsungyi Lo, Mingchia Wu, Weilong Cheng
  • Patent number: 8162068
    Abstract: A pilot valve assembly for regulating the output of a first pressure source relative to a second pressure source, a fluid system equipped with the valve assembly, and a method of operating the valve assembly. The valve assembly includes a valve body with inlet and outlet ports and first and second sensing ports. The first and second sensing ports are adapted to sense, respectively, the fluid pressures of the first and second pressure sources. The inlet port is adapted for fluidically connecting to the first pressure source. The valve assembly defines a flow path between the inlet and outlet ports, and has components for allowing fluid flow from the inlet port, through the flow path, and to the outlet port only if the fluid pressure of the first pressure source exceeds the fluid pressure of the second pressure source by a differential by the flow-allowing components.
    Type: Grant
    Filed: June 15, 2009
    Date of Patent: April 24, 2012
    Assignee: Vanair Manufacturing, Inc.
    Inventor: Jeff Rohl
  • Publication number: 20120080094
    Abstract: A method and device for feeding a presettable measurement quantity of a sample liquid from a liquid reservoir via a feed line through a switching valve into a temporary store in order subsequently, after actuation of the switching valve, to feed the sample liquid to an analytical measuring instrument where the sample liquid is conveyed into the temporary store until further conveying of the sample liquid is terminated and the switching valve is actuated by evaluation of a characteristic quantity, wherein a flow rate of the sample liquid is determined at a time at which a first proportion of the sample liquid has already flowed through the switching valve, and the switching valve is actuated as a function of the flow rate determined and a switching delay determined in advance.
    Type: Application
    Filed: September 29, 2011
    Publication date: April 5, 2012
    Applicant: MERK PATENT GMBH
    Inventor: Michael MARTIN
  • Publication number: 20120036866
    Abstract: A system and method are disclosed for supplying fuel to an auxiliary power unit of an aircraft. The system includes a primary fuel source, a secondary fuel source, and a secondary valve. The primary fuel source is in fluid communication with the auxiliary power unit to provide a primary fuel thereto. Similarly, the secondary fuel source is in fluid communication with the auxiliary power unit to provide a secondary fuel thereto. The secondary valve regulates flow of the secondary fuel from the secondary fuel source to the auxiliary power unit. The method provides a secondary fuel from a secondary fuel source to the auxiliary power unit if an emergency operating condition experienced by the aircraft results from either exhaustion or contamination of a primary fuel.
    Type: Application
    Filed: August 11, 2010
    Publication date: February 16, 2012
    Applicant: HAMILTON SUNDSTRAND CORPORATION
    Inventor: Adam M. Finney
  • Publication number: 20110318209
    Abstract: Methods, devices, and systems are disclosed for combining fluids of different pressures and flow rates in, for example, gas gathering systems, gas wells, and other areas in which independently powered compressors are not desired. Methods, devices, and systems for turning a shaft are also provided, as are methods, devices, and systems for dropping pressure in a gas line.
    Type: Application
    Filed: September 7, 2011
    Publication date: December 29, 2011
    Applicant: BLUE MARBLE ENGINEERING LLC
    Inventors: Philip Allard, Stanley D. Benham
  • Publication number: 20110284311
    Abstract: A steering system includes a fluid pump and an electro-hydraulic steering circuit in selective fluid communication with the fluid pump. The electro-hydraulic steering circuit defines a first flow path having a first proportional valve and a first load-sense passage in selective communication with the first proportional valve. The first proportional valve includes a closed position. A hydrostatic steering circuit is in selective fluid communication with the fluid pump and defines a second flow path having a second proportional valve and a second load-sense passage in selective fluid communication with the second proportional valve. The second flow path is in a parallel flow configuration with the first flow path. An isolation valve is disposed in the first flow path in series with the first proportional valve. The isolation valve includes a closed position and is piloted to the closed position by fluid communicated through the second load-sense passage.
    Type: Application
    Filed: July 26, 2011
    Publication date: November 24, 2011
    Applicant: Eaton Corporation
    Inventors: John Michael Cadman, Nathan Harold French, Wade Leo Gehlhoff, Robin Francis Ireton
  • Publication number: 20110139266
    Abstract: A flow splitter for accurately dividing fluid flow into different outlets includes a splitter valve and a calibration member. The calibration member blocks a portion of fluid flow to reduce differences in the divided fluid flows.
    Type: Application
    Filed: December 11, 2009
    Publication date: June 16, 2011
    Inventors: Tomas R. Leutwiler, Glenn Gradischer, Anthony Towne, Richard H. Bostiga
  • Publication number: 20110120569
    Abstract: A fuel tank system for gasoline or flexible gasoline/ethanol powered vehicles that use independently controlled direct ethanol injection to provide a large on-demand octane boost is disclosed. The on-demand octane boost is used when needed to prevent knock. The ethanol can be in the form of 100% ethanol or E85 (a 85% ethanol, 15% gasoline mixture) and is stored in a second tank that is separate from the tank that which contains the primary fuel. The primary fuel can be gasoline, E85, ethanol or a mix of these fuels. The fuel tank system enables convenient, quick, flexible and minimal cost refueling of the separate fuel tank. A range of fueling options is available to provide the driver with the maximum freedom to choose fuels depending upon price and availability. Valves may be utilized to direct the flow in fuel to the various tanks.
    Type: Application
    Filed: November 22, 2010
    Publication date: May 26, 2011
    Applicant: ETHANOL BOOSTING SYSTEMS, LLC
    Inventors: Leslie Bromberg, Daniel Cohn
  • Publication number: 20110108132
    Abstract: The invention pertains to reaction systems in which at least one capillary unit is applied.
    Type: Application
    Filed: May 26, 2009
    Publication date: May 12, 2011
    Applicant: AVANTIUM HOLDING B.V.
    Inventors: Roelandus Hendrikus Wilhelmus Moonen, Emilio Rene' Bodenstaff, Martin Smit
  • Patent number: 7918241
    Abstract: A control valve for a faucet includes a valve housing, a hollow valve seat, two sealing gaskets, at least one water outlet channel, a rotation plate, a control unit, two mounting seats, a fixed sleeve, and a movable sleeve. Thus, the movable sleeve is movable in the fixed sleeve to control the water flow rate of the mixed cold and hot water to the optimum value to regulate and stabilize the water pressure automatically so as to provide a pressure balance effect so that the mixed water flowing from the water outlet channel is kept at a constant temperature, thereby providing a comfortable sensation to a user.
    Type: Grant
    Filed: December 5, 2007
    Date of Patent: April 5, 2011
    Assignee: Hain Yo Enterprises Co., Ltd.
    Inventor: Chia-Po Chang
  • Publication number: 20110036416
    Abstract: Device for equalizing a liquid flow in a flow taking place through a device formed of at least two liquid-moving elements located on shafts (10, 11), in which case the flow channel is formed of a hollow shaft (10), a flow opening (16) in Hs wall and a flow groove (14) for leading the liquid to the liquid-moving elements. The liquid-moving element (e.g., 13) is located on the shaft (10), in a rotating manner that regulates the size of the flow opening (16).
    Type: Application
    Filed: February 3, 2009
    Publication date: February 17, 2011
    Inventor: Pekka Leskinen
  • Patent number: 7864062
    Abstract: Provided is an apparatus for detecting a change in a specific gravity of a fluid surrounding the apparatus wherein the fluid moves upwardly and downwardly with respect to the apparatus. The apparatus includes a housing having a top and a plurality of openings for allowing the fluid to enter the housing. A first floatation device is provided having a first specific gravity and being located within the housing. The first floatation device includes a magnet. A second floatation device is provided having a second specific gravity and located within the housing adjacent said first floatation device. The said second floatation device includes a magnet aligned to have the same polarity as the magnet of the first floatation device. A switch fixedly attached to said top, the switch having an open state and a closed state where when one of said magnets is in proximity to the switch, the switch is in a closed state and wherein when both of said magnets are in proximity to said switch, the switch is in an open state.
    Type: Grant
    Filed: November 4, 2005
    Date of Patent: January 4, 2011
    Assignee: Kinetico Incorporated
    Inventors: Stephen W. Cook, Michael A. Hemann, Steven M. Hoopes, Jerome P. Kovach
  • Patent number: 7806134
    Abstract: A control valve for a faucet includes a valve housing, a hollow valve seat, at least one water outlet channel, a fixed plate, a rotation plate, a control unit, two mounting seats, a fixed sleeve, and a movable sleeve. Thus, the movable sleeve is movable in the fixed sleeve to control the water flow rate of the mixed cold and hot water to the optimum value to regulate and stabilize the water pressure automatically so as to provide a pressure balance effect so that the mixed water flowing from the water outlet channel is kept at a constant temperature, thereby providing a comfortable sensation to a user.
    Type: Grant
    Filed: December 5, 2007
    Date of Patent: October 5, 2010
    Assignee: Hain Yo Enterprises Co., Ltd.
    Inventor: Chia-Po Chang
  • Publication number: 20100126495
    Abstract: An appliance including at least two surface burners and a burner control system configured to selectively allow individual control of each of the at least two burners or simultaneous control of the at least two burners as a unit.
    Type: Application
    Filed: November 25, 2008
    Publication date: May 27, 2010
    Inventor: Timothy Scott Shaffer
  • Publication number: 20100116352
    Abstract: A multi-component coating spray application system comprises: a source of a first coating component, a source of a second coating component, a dynamic mixer in fluid flow communication with the sources of the first and second coating components, wherein the dynamic mixer comprises a mixing chamber and a movable stirring member in the mixing chamber, and a spray gun in fluid flow communication with an outlet port of the dynamic mixer.
    Type: Application
    Filed: November 12, 2008
    Publication date: May 13, 2010
    Applicant: PRC-DeSoto International, Inc.
    Inventor: Ian Mark Toole
  • Publication number: 20100037958
    Abstract: Gas is delivered to a locus from a gas delivery device (1), which is spaced from the locus and comprises an inner pipe (2) and an outer pipe (3) axisymmetrical with and surrounding said inner pipe (2) to form an annular conduit (4). A first gas is fed to the inner pipe to exit as a laminar flow jet impinging on the locus and a second gas is fed to the annular conduit to exit as a turbulent flow annular sleeve surrounding and constraining diffusion of said jet. In a preferred embodiment, normoxic air is fed to both the inner pipe and the conduit and oxygen is introduced into the inner pipe at an intermediate location so that the jet is oxygen-enriched air for inhalation by a user at the locus.
    Type: Application
    Filed: May 18, 2009
    Publication date: February 18, 2010
    Applicant: Air Products and Chemicals, Inc.
    Inventors: Andrew Duncan Tassell, Neil Alexander Downie, Richard Wiktorowicz
  • Publication number: 20100000609
    Abstract: A gas mixing device feeds from two gas sources (1, 4), placing each gas into half of a chamber (17, 16) which is divided by a flexible physical barrier (12), such that pressure is equalised across the chambers (16, 17). Upon the release of each gas from each chamber at the same time into a mixing barrel (7), exit pressures and thus mixing characteristics are suitably controlled for a desired mix of gasses, due to the pressure balancing effect of the flexible barrier (12). The device might also be termed a divider or a dilutor. The device might be used in the mixing of low concentrations of carbon monoxide, such as 1 percent, in nitrogen with more nitrogen to dilute the concentration to 0.001 percent.
    Type: Application
    Filed: December 19, 2007
    Publication date: January 7, 2010
    Inventor: Brian Arthur Goody
  • Publication number: 20090320480
    Abstract: Fuel control arrangements provide and control fuel flow to injectors through fuel control valves. The injectors are connected to respective fuel control valves which in turn are connected to a first fuel flow path. The injectors are also connected to a second fuel flow path. The fuel paths are associated with a fuel source and generally have a recirculation valve between them. When flow in the flow path is stopped, recirculation of fuel can be provided across the recirculation valve to prevent fuel degradation. By provision of a restrictor valve in the second fuel flow path control of fuel recirculation can be achieved, as well as greater flexibility by presenting fuel flow separately through the second flow path to the injector whilst the first flow path is inhibited.
    Type: Application
    Filed: May 21, 2009
    Publication date: December 31, 2009
    Applicant: ROLL-ROYCE PLC
    Inventor: Mark Scully
  • Publication number: 20090218161
    Abstract: A steering system includes a fluid pump and an electro-hydraulic steering circuit in selective fluid communication with the fluid pump. The electro-hydraulic steering circuit defines a first flow path having a first proportional valve and a first load-sense passage in selective communication with the first proportional valve. The first proportional valve includes a closed position. A hydrostatic steering circuit is in selective fluid communication with the fluid pump and defines a second flow path having a second proportional valve and a second load-sense passage in selective fluid communication with the second proportional valve. The second flow path is in a parallel flow configuration with the first flow path. An isolation valve is disposed in the first flow path in series with the first proportional valve. The isolation valve includes a closed position and is piloted to the closed position by fluid communicated through the second load-sense passage.
    Type: Application
    Filed: February 28, 2008
    Publication date: September 3, 2009
    Applicant: EATON CORPORATION
    Inventors: John Michael Cadman, Nathan Harold French, Wade Leo Gehlhoff, Robin Francis Ireton
  • Publication number: 20090126802
    Abstract: A fuel staging system comprises a splitter valve arranged to split an input fuel stream into a pilot fuel stream and a main fuel stream, the splitter valve comprising a spool slidable within a bore, the spool and bore together defining first and second control chambers, the fluid pressures in which determine the position occupied by the spool, the system further comprising a control line which, in use, controls fuel delivery through a plurality of main burners, the fluid pressure in the control line being a combination of the fluid pressures in the first and second control chambers.
    Type: Application
    Filed: November 18, 2008
    Publication date: May 21, 2009
    Applicant: Goodrich Control Systems Limited
    Inventor: Neil Rawlinson
  • Patent number: 7464766
    Abstract: A self-metering, automatic (i.e. pressure regulating) industrial-scale fire fighting nozzle, with or without self-eduction, for self-metering a concentrate in accordance with varying liquid flow through the nozzle occasioned by the pressure regulating, with additional features of having a “ratio selectable” means for self-metering for different selected additive concentrations or mixing ratios and of having a mechanical flowmeter.
    Type: Grant
    Filed: October 2, 2003
    Date of Patent: December 16, 2008
    Assignee: Williams Fire & Hazard Control, Inc.
    Inventors: Dennis W. Crabtree, Dwight P. Williams