By Fluid Pressure Patents (Class 137/12)
  • Patent number: 10946378
    Abstract: Provided herein are passive microfluidic pumps. The pumps can comprise a fluid inlet, an absorbent region, a resistive region fluidly connecting the fluid inlet and the absorbent region, and an evaporation barrier enclosing the resistive region, the absorbent region, or a combination thereof. The resistive region can comprise a first porous medium, and a fluidly non-conducting boundary defining a path for fluid flow through the first porous medium from the fluid inlet to the absorbent region. The absorbent region can comprise a fluidly non-conducting boundary defining a volume of a second porous medium sized to absorb a predetermined volume of fluid imbibed from the resistive region. The resistive region and the absorbent region can be configured to establish a capillary-driven fluid front advancing from the fluid inlet through the resistive region to the absorbent region when the fluid inlet is contacted with fluid.
    Type: Grant
    Filed: March 18, 2016
    Date of Patent: March 16, 2021
    Assignee: North Carolina State University
    Inventors: Brian M. Cummins, Frances Smith Ligler, Glenn Walker
  • Patent number: 10935477
    Abstract: A method of detecting a defect in an applied volume of material includes detecting a pressure discontinuity during dispensing the volume of material along a predetermined path on a substrate. The pressure discontinuity is indicative of the defect in the applied volume of material. The location of the defect along the predetermined path is function of a start time of the pressure discontinuity and the size of the defect is a function of a time duration of the pressure discontinuity. The method can further include determining whether or not to repair the defect as a function of the location and the size of the defect in the applied volume of material. The method includes repairing the defect by re-directing the material applicator to the location of the defect and dispensing additional material at the location of the defect.
    Type: Grant
    Filed: March 27, 2019
    Date of Patent: March 2, 2021
    Assignee: Ford Motor Company
    Inventors: Ahmad Rezaei Mojdehi, David John Hill, Jim Derry
  • Patent number: 10912876
    Abstract: A system for controlling the position of a diaphragm in a diaphragm-containing pressure pod, is provided. The system can include a peristaltic pump, a pressure pod having a flow-through fluid side and a gas side that are separated by a diaphragm, and a pressure sensor operatively connected to the gas side. The pressure sensor is configured to sense pulses of pressure resulting from movement of the diaphragm and caused by the action of the peristaltic pump. A gas source and a valve can be in fluid communication with the gas side of the pressure pod and can be configured to provide gas to, or vent gas from, the gas side. A controller receives pressure signals from the pressure sensor and controls the valve in response, and in so doing, controls the position of the diaphragm. Methods for positioning the diaphragm are also included.
    Type: Grant
    Filed: July 8, 2019
    Date of Patent: February 9, 2021
    Assignee: Fresenius Medical Care Holdings, Inc.
    Inventors: Martin Crnkovich, Lee Tanenbaum, Michael Emmanuel Kotsos, Fei Wang, Alex Brown
  • Patent number: 10850530
    Abstract: In one example, a liquid delivery and gas removal system for a printhead. The system includes a pump to provide a liquid at a positive pressure. The system also includes a filter fluidically coupled to the pump to receive the pressurized liquid at an upstream side, at a first pressure push the liquid through the filter to a downstream side, and at a higher second pressure push gas bubbles in the liquid through the filter to the downstream side. The system further includes a vent having a gas-permeable membrane. A wet side of the membrane is fluidically coupled to the downstream side and to a printhead. A vacuum is applied to a dry side of the membrane.
    Type: Grant
    Filed: October 27, 2015
    Date of Patent: December 1, 2020
    Assignee: Hewlett-Packard Development Company, L.P.
    Inventors: David Ridgway Otis, Jr., Si-lam Julius Choy, Kevin Edward Swier, David N. Olsen
  • Patent number: 10835071
    Abstract: A cookware apparatus is utilized to efficiently drain liquids from itself. The apparatus includes a body having an upper bottom section including at least one orifice, a lower bottom section, and a sidewall section affixed to the upper bottom section. Shafts affixed to the lower bottom section may be disposed within each of at least one housing mounted to a surface of the sidewall section. Handle portions affixed to at least one of the body and the at least one housing each include a trigger mechanism for actuating linear movement of the shafts. Actuation of the trigger mechanism separates the lower bottom section from the upper bottom section and the sidewall section to allow liquid to drain through the at least one orifice and out the interior volume of the body.
    Type: Grant
    Filed: November 19, 2019
    Date of Patent: November 17, 2020
    Inventor: James B. Lynch
  • Patent number: 10823448
    Abstract: A heat exchange system, an air conditioning control system, and an air conditioning system control method. A control portion of the heat exchange system respectively adjusts the opening of electronic expansion valves, and controls the electronic expansion valves to store an initialisation state and position information before powering down so that the electronic expansion valves first perform initialisation state switching when next powering up, thereby reducing the risk of the electronic expansion valves being out of step, and saving system start-up time.
    Type: Grant
    Filed: May 17, 2017
    Date of Patent: November 3, 2020
    Assignee: Hangzhou Sanhua Research Institute Co., Ltd.
    Inventors: Xiaojun Jiang, Likun Yang, Yingchong Lu, Rongrong Zhang
  • Patent number: 10753494
    Abstract: A pneumatic valve, includes an air chamber with a supply port to supply compressed air into the air chamber and one or more discharge ports for discharging compressed air from the air chamber. An actuator with a movable closing element and a shape memory alloy SMA element are provided in the valve. The SMA element deforms in response to a supply of electrical heating current and effects an activation of the actuator by movement of the closing element. When the actuator is in an activated state, the closing element blocks the supply of compressed air via the supply port is blocked. When the actuator is in a deactivated state, the closing element enables the supply of compressed air via the supply port. Upon deactivation of the actuator, the closing element is moved by a restoring force into the free setting. The valve includes a check valve with an elastic element.
    Type: Grant
    Filed: July 27, 2018
    Date of Patent: August 25, 2020
    Assignee: Conti Temic Microelectronic GmbH
    Inventors: Michael Beuschel, Stefan Bauer, Norbert Seltner, Alexander Kerler
  • Patent number: 10654355
    Abstract: A filling nozzle of a fuel tank including a receiving pipe and a liquid-vapor separator, includes a hollow body communicating with an intake pipe for a stream of vapors from the fuel tank, an emptying pipe flowing into the receiving pipe, and a vapor outlet pipe. The hollow body includes a separation mechanism extracting droplets and including at least one wall movable between first and second configurations. In the first configuration the movable wall forms, together with walls of the hollow body, a maze in which stream of vapors passing from the intake pipe towards the outlet pipe is forced to circulate. In the second configuration the movable wall allows the stream of vapors to pass from the intake pipe to the outlet pipe following a path that avoids all or part of the path travelled by the vapors when the movable walls are in the first configuration.
    Type: Grant
    Filed: December 26, 2014
    Date of Patent: May 19, 2020
    Assignee: PLASTIC OMNIUM ADVANCED INNOVATION AND RESEARCH
    Inventors: Yvan Le Mat, Pierre Oszwald
  • Patent number: 10639385
    Abstract: A sterilization apparatus for sterilization of objects. The apparatus includes a chamber for receiving the objects including a sterilization medium inlet and outlet; an inlet flow control device for controlling a supply of a sterilization medium to the chamber; a drain system for controllable discharge of fluid from the chamber; and a control unit configured to control the inlet flow control device and drain system. The drain system includes: a drain inlet connected to the sterilization medium outlet; a drain outlet connected to a vacuum system for evacuating the chamber; a first conduit connecting the drain inlet and outlet; and a proportional valve, arranged along the first conduit, controllable by the control unit to partly restrict fluid flow through the first conduit according. Drain valves may be controlled in response to the temperature of a flow of coolant, the coolant being used for cooling fluid via a heat exchanger.
    Type: Grant
    Filed: June 19, 2018
    Date of Patent: May 5, 2020
    Assignee: GETINGE STERILIZATION AB
    Inventors: Bengt Storberg, Stefan Troedsson
  • Patent number: 10635155
    Abstract: Independent power control of two or more processing cores. More particularly, at least one embodiment of the invention pertains to a technique to place at least one processing core in a power state without coordinating with the power state of one or more other processing cores.
    Type: Grant
    Filed: April 12, 2018
    Date of Patent: April 28, 2020
    Assignee: Intel Corporation
    Inventors: Stephen H. Gunther, Edward A. Burton, Anant Deval, Stephan Jourdan, Robert Greiner, Michael Cornaby
  • Patent number: 10634003
    Abstract: Methods and apparatus to control the actuation of regulators including a loading chamber are disclosed. An example apparatus includes a first pneumatic regulator including a loading chamber, the first pneumatic regulator to flow fluid toward a downstream process; a second pneumatic regulator coupled between the loading chamber and the downstream process, the second pneumatic regulator to control an actuation of the first pneumatic regulator during normal operation based on a pressure difference between a first pressure downstream of the first pneumatic regulator and a second pressure within the loading chamber; and a valve coupled between the loading chamber and the downstream process, the valve to control the actuation of the first pneumatic regulator during a shut-down event.
    Type: Grant
    Filed: January 20, 2017
    Date of Patent: April 28, 2020
    Assignee: Emerson Process Management Regulator Technologies, Inc.
    Inventors: Justin Lane Masias, William Kevin Burke, Paul Richard Anderson
  • Patent number: 10613610
    Abstract: Independent power control of two or more processing cores. More particularly, at least one embodiment of the invention pertains to a technique to place at least one processing core in a power state without coordinating with the power state of one or more other processing cores.
    Type: Grant
    Filed: April 12, 2018
    Date of Patent: April 7, 2020
    Assignee: Intel Corporation
    Inventors: Stephen H. Gunther, Edward A. Burton, Anant Deval, Stephan Jourdan, Robert Greiner, Michael Cornaby
  • Patent number: 10578091
    Abstract: Fluid flow adapter for a cylinder of a reciprocating compressor, the cylinder having a side wall provided with a valve seat, the fluid flow adapter comprising a filler element having an internal surface facing an internal volume of the cylinder and an external surface facing the valve, the filler element having at least a channel connecting the internal surface to the external surface, wherein the internal surface is flush with the side wall of the cylinder, the channel being configured to allow the passage of fluid between the internal volume of the cylinder and the valve.
    Type: Grant
    Filed: November 24, 2015
    Date of Patent: March 3, 2020
    Assignee: NUOVO PIGNONE SRL
    Inventors: Riccardo Bagagli, Leonardo Tognarelli, Alberto Babbini, Massimo Bargiacchi, Guido Pratelli, Federico Puccinelli, Riccardo Maleci
  • Patent number: 10514107
    Abstract: An oil tank for a gas turbine engine includes a top and a bottom disposed vertically beneath the top. An overfill return passage extends from the bottom of the oil tank toward the top of the oil tank. An outlet is formed on the bottom of the oil tank and inside the overfill return passage. A check valve is inside the overfill return passage and is connected to the outlet. The check valve includes a seat circumscribing the outlet and a plug inside the overfill return passage. The plug has a lower density than an oil disposed inside the oil tank. The check valve does not include a spring such that the plug is configured to translate freely inside the overfill return passage.
    Type: Grant
    Filed: June 12, 2017
    Date of Patent: December 24, 2019
    Assignee: United Technologies Corporation
    Inventor: David Allen Stachowiak
  • Patent number: 10509422
    Abstract: A mass flow controller includes a flow meter, a mechanical pressure-regulating valve disposed adjacent to and on an upstream side of the flow meter, and a flow control valve disposed on a downstream side of the flow meter. The mechanical pressure-regulating valve is embedded in a base of the mass flow controller. The mass flow controller also includes a compulsive valve-opening mechanism configured to compulsorily open the mechanical pressure-regulating valve. Thereby, the mass flow controller can instantly recover pressure on the upstream side of the flow meter to its original pressure even in a case where the pressure changes, and can raise measurement accuracy of a flow rate measured by the flow meter.
    Type: Grant
    Filed: August 20, 2015
    Date of Patent: December 17, 2019
    Assignee: Hitachi Metals, Ltd.
    Inventors: Tomokazu Hirota, Hiroyuki Ito
  • Patent number: 10392123
    Abstract: A method of recovering performance of an air separation module (ASM) is described. A recovery system includes an air source providing inlet air, a filter to output clean air and a heater heating the air. The ASM is coupled to the system and comprises a hollow fiber membrane to output nitrogen enriched air (NEA) exhaust. The method comprises operating the system with the air source and heater in a default condition; measuring an initial purity of NEA exhaust; adjusting the air source and/or heater based on the initial purity; operating the system after adjusting the air source and/or heater; returning the air source and heater to the default condition; measuring a recovered purity of NEA exhaust; and determining whether the recovered purity is within tolerance. If the recovered purity is within tolerance, system operation is terminated. If the recovered purity is not within tolerance, the steps are repeated.
    Type: Grant
    Filed: April 7, 2017
    Date of Patent: August 27, 2019
    Assignee: Carleton Life Support Systems, Inc.
    Inventors: Abdullah Al-Yafawi, William Vestal
  • Patent number: 10337463
    Abstract: A method is presented wherein during a first condition that includes a fuel tank pressure above a threshold, a fuel tank is fluidically coupled to a fuel vapor canister while a fuel vapor canister vent path is restricted, and a degree of restriction of the fuel vapor canister vent path is modulated. Modulating the degree of restriction of the fuel vapor canister vent path allows a fuel tank to be depressurized at a controlled rate. In this way, excess fuel tank pressure can be relieved, even if a vehicle engine is not operating in a combustion mode.
    Type: Grant
    Filed: October 22, 2015
    Date of Patent: July 2, 2019
    Assignee: Ford Global Technologies, LLC
    Inventors: Mohammad R. Aghili, Aed M. Dudar, Dennis Seung-Man Yang
  • Patent number: 10253594
    Abstract: A zone to be treated comprises a plurality of sliding sleeve valves. The sleeve defined opposed chambers charged with pressurized fluid on opposed sides of the sleeve. Valves responsive to a remote signal with no borehole intervention change the pressure balance on the sleeve to get it to open from a closed position and then close and then to reopen for production. One way this is done is by sequential pressure bleeding off from the opposed chambers. A zone having multiple such valves can be treated without need for dropping balls and subsequent milling out, which allows production to commence sooner with reduced restrictions to flow from the ball seats and without the debris associated from a milling operation.
    Type: Grant
    Filed: December 9, 2016
    Date of Patent: April 9, 2019
    Assignee: BAKER HUGHES, A GE COMPANY, LLC
    Inventors: John K. Wakefield, Robert S. O'Brien, Alexander Kendall, Stephen A. Graham, Peter J. Clark
  • Patent number: 10245941
    Abstract: The invention relates to a vent valve (1) for controlling the internal tank pressure of a fuel tank, having at least one valve housing (2) having at least one first connection (3) to the fuel tank and at least one second connection (4), which can be connected to a vent line leading to a fuel vapor filter. The vent valve (1) comprises at least one valve element, which is held in a valve seat (8) in a position in which it closes the first connection (3) by the force of gravity and/or by spring loading and, after a given pressure threshold is exceeded, is raised from the valve seat (8) and, when a given pressure threshold is undershot, returns to the initial position. The valve element and/or the valve element guide has/have at least one relief opening (10), which forms a bypass for a gap flow which arises, for example, during a return movement of the valve element.
    Type: Grant
    Filed: September 20, 2012
    Date of Patent: April 2, 2019
    Assignee: KAUTEX TEXTRON GMBH & CO. KG
    Inventor: Ibrahim Koukan
  • Patent number: 10221645
    Abstract: A high-integrity pressure protection system Christmas tree is provided. In one embodiment, an apparatus includes a Christmas tree, a choke coupled to receive fluid from the Christmas tree, and a high-integrity pressure protection system. The high-integrity pressure protection system includes pressure sensors downstream of the choke, valves upstream of the choke, and a logic solver connected to control operation of the valves of the high-integrity pressure protection system that are upstream of the choke. Further, the valves of the high-integrity pressure protection system that are upstream of the choke include at least two valves of the Christmas tree. Additional systems, devices, and methods are also disclosed.
    Type: Grant
    Filed: June 13, 2017
    Date of Patent: March 5, 2019
    Assignee: Cameron International Corporation
    Inventor: Declan Elliott
  • Patent number: 10216200
    Abstract: Devices, methods, and systems for water balancing are described herein. An example device includes a memory and a processor configured to execute executable instructions stored in the memory. The instructions are executed to send a command from a building controller to balance a subset of a plurality of valves. The instructions are executed to simultaneously balance the subset of the plurality of valves associated with a plurality of building systems, based on the command, and without accessing any of the plurality of valves individually.
    Type: Grant
    Filed: June 22, 2016
    Date of Patent: February 26, 2019
    Assignee: Honeywell International Inc.
    Inventors: Cary Leen, Andrew David Halford, Roy Alan Kolasa, Vinay Prasad, Jayaprakash Meruva, Evan John Kingston
  • Patent number: 10144278
    Abstract: Air guide system (10) for a motor vehicle, comprising a support structure (12) having an air passage opening (14), an air damper assembly (16) having at least one air damper (18) which is provided on the support structure (12) so that it can pivot about a damper axis (20) between a closed position (FIG. 1(a)) and an open position (FIG. 1(c)) in order to adjust a flow cross-section of the air passage opening (14), the flow cross-section being minimal in the closed position (FIG.
    Type: Grant
    Filed: February 24, 2014
    Date of Patent: December 4, 2018
    Assignee: Röchling Automotive SE & Co. KG
    Inventor: Andreas Schmitt
  • Patent number: 10138716
    Abstract: An apparatus for controlling a flow of fluid downhole comprises a removable fluid nozzle in fluid communication with a production tubular disposed in a borehole penetrating the earth. The removable fluid nozzle is configured for bi-directional flow, wherein a pressure drop of fluid flow in one direction is greater than the pressure drop of fluid flow in the other direction.
    Type: Grant
    Filed: May 18, 2016
    Date of Patent: November 27, 2018
    Assignee: BAKER HUGHES, A GE COMPANY, LLC
    Inventors: Britain A. Fisher, Joshua Raymond Snitkoff
  • Patent number: 10139005
    Abstract: A sensor for sensing the integrity of a pressure relief device, along with associated systems and methods, are disclosed. The sensor may sense a designed area of weakness of a pressure relief device, such as an explosion vent or rupture disk. A monitor may monitor a signal from the sensor, which may be transmitted between the sensor and monitor by way of a sensor loop. In response to a change in the designed area of weakness, the signal from the sensor may be altered or interrupted, indicating that the designed area of weakness has changed. The signal from the sensor may be, for example, an electrical signal, optical signal, or an air flow in a pneumatic loop.
    Type: Grant
    Filed: July 30, 2010
    Date of Patent: November 27, 2018
    Assignee: BS&B Safety Systems Limited
    Inventors: Geof Brazier, John Tomasko, Liam Fitzgerald, Stephen Farwell, Hughie Leahy
  • Patent number: 10082216
    Abstract: Disclosed is a system to dynamically operate a valve including a direct current (DC) stepper motor. The system includes a valve detector to identify the valve and to determine whether the valve is operable in multiple operating modes. The system further includes a mode selector electrically coupled to the valve detector. The mode selector selects an operating mode from the multiple operating modes. The system further includes a current selector electrically coupled to the mode selector. The current selector selects a target current level based on the selected operating mode. The system further includes a motor controller electrically coupled to the current selector and the DC stepper motor. The motor controller drives the DC stepper motor with a drive current at the selected target current level.
    Type: Grant
    Filed: July 21, 2017
    Date of Patent: September 25, 2018
    Assignee: Johnson Controls Technology Company
    Inventors: Nicholas S. Van Derven, Kraig D. Ritmanich, Peter J. Wawer
  • Patent number: 10046072
    Abstract: A sterilization apparatus is disclosed for sterilization of objects. The sterilization apparatus includes a chamber for receiving the objects, the chamber including a sterilization medium inlet and outlet; an inlet flow control device for controlling a supply of a sterilization medium to the chamber; a drain system for controllable discharge of fluid from the chamber; and a control unit configured to control the inlet flow control device and drain system in accordance with a sterilization scheme. The drain system includes: a drain inlet connected to the sterilization medium outlet; a drain outlet connected to a vacuum system for evacuating the chamber; a first conduit connecting the drain inlet and outlet; and a proportional valve, arranged along the first conduit, controllable by the control unit to partly restrict fluid flow through the first conduit according to a continuous relation between a control parameter and a valve opening of the proportional valve.
    Type: Grant
    Filed: June 18, 2012
    Date of Patent: August 14, 2018
    Assignee: GETINGE STERILIZATION AB
    Inventors: Bengt Storberg, Stefan Troedsson
  • Patent number: 10018277
    Abstract: A flow rate control valve capable of eliminating an extra operation of a diaphragm spacer after a valve has become a closed state and shortening a response time is provided. It has an annular valve seat 115, a diaphragm 116 including a thin plate-shaped elastic body an outer peripheral part of which has been fixed, and a diaphragm spacer 117 located on the opposite side of the valve seat 115 with the diaphragm 116 interposed therebetween, and the annular valve seat 115, the diaphragm 116 and the diaphragm spacer 117 are coaxially disposed. And, it is structured that the annular valve seat 115 has, on its top, an inclined surface 123 inclined to the inner peripheral side, and the diaphragm 116 is displaced in a direction of the valve seat 115 and the inclined surface 123 on the top of the valve seat 115 and the diaphragm 116 abut against with no gap by pressing force of the diaphragm spacer 117.
    Type: Grant
    Filed: March 28, 2014
    Date of Patent: July 10, 2018
    Assignee: Hitachi Metals, Ltd.
    Inventors: Takahiro Umeyama, Keiko Watanabe, Toshihiko Shimizu
  • Patent number: 9927121
    Abstract: Servo gas system (11) for a gas burner (10), namely for controlling a pressure regulation valve (20) positioned in a gas duct (18) of the gas burner, thereby controlling a gas pressure within the gas duct (18) being present downstream of the pressure regulation valve (20) and thereby controlling a pressure difference between a pressure in a burner chamber (12) of the gas burner and said gas pressure within the gas duct (18), the servo gas system (11) comprising a static servo gas flow branch (28) and a dynamic servo gas flow branch (29) being connected in parallel, and a flow sensing element (30) being connected between the static servo gas flow branch (28) and the dynamic servo gas flow branch (29) and providing a signal used to control the pressure regulation valve (20) by an electric actuator (41).
    Type: Grant
    Filed: July 29, 2014
    Date of Patent: March 27, 2018
    Assignee: Honeywell Technologies, Sarl
    Inventor: Willem Super
  • Patent number: 9863837
    Abstract: Various embodiments disclosed herein relate to detecting leaks in a patient monitoring system. The system can include a fluid handling network configured to receive a fluid sample drawn from a patient and to deliver at least a portion of the fluid sample to an analyte measurement system. The system can isolate at least a portion of the fluid handling network, can apply pressure to the at least a portion of the fluid handling network, can measure the pressure in the at least a portion of the fluid handling network, and can determine whether a leak is present in the at least a portion of the fluid handling network based at least in part on the measured pressure.
    Type: Grant
    Filed: December 17, 2014
    Date of Patent: January 9, 2018
    Assignee: OptiScan Biomedical Coporation
    Inventors: Peter Rule, James D. Causey, III
  • Patent number: 9759123
    Abstract: A liquid container including: at least two compartments (2; 3) which are each provided with a fluid inlet and outlet and which are connectable to a fluid flow circuit, respectively, at least one communication area (4) between the compartments (2; 3), at least one opening (5) for filling the container, at least one plug (6) for closing the opening (5) for filling the container, the opening (5) for filling the container is an opening common to the compartments (2, 3) and the container further includes at least one member (7) for closing the communication area (4) between the compartments (2, 3), the closing member being movably mounted between an open position of the area and a closed position of the area, the closing member being in a closed position of the area in a closed position of the filling opening plug.
    Type: Grant
    Filed: January 2, 2014
    Date of Patent: September 12, 2017
    Assignee: TRISTONE FLOWTECH SOLUTIONS (TFS)
    Inventors: Louis-Philippe Le Poul, Ghislain Gaudiau, Caroline Archambeault, Luc N'Kaoua, Dominique Saint-Lary, Sylvain Merour
  • Patent number: 9675135
    Abstract: Provided herein are methods for the modulation of appearance or material properties within items of apparel or equipment. Also provided herein are design articles having alterable designs.
    Type: Grant
    Filed: February 10, 2012
    Date of Patent: June 13, 2017
    Inventors: Nicole Justis Truitt, Benjamin David Sullivan, Zeyad Moussa, Daniel Kincade
  • Patent number: 9644349
    Abstract: A controller (8) for a pilot valve (102) which adjusts the output pressure of a pressure reducing valve (44) supplying water to a consumer region (3). With the aim of reducing output pressure whilst still providing a minimum required pressure at a critical point (CP) in the region, the controller adjusts the output pressure in accordance with the flow rate. The controller includes a clock (22) and the relationship between the required output pressure and the measured flow rate is time dependent. Parameters which define the relationship are supplied to the controller (8) from a remote data processing system (13) which analyses flow rate and output pressure data transmitted from the controller, and also pressure data from a remote sensor (10) at the critical point. At intervals, the controller (8) establishes a wireless connection with the remote system (13), to transmit logged data, and to receive parameters covering a period of time which is greater than the interval between communication sessions.
    Type: Grant
    Filed: January 24, 2008
    Date of Patent: May 9, 2017
    Assignee: i2O Water Limited
    Inventor: Andrew Roland Burrows
  • Patent number: 9639363
    Abstract: A processor core includes a front end, and first and second back ends, the front end including a fetch engine configured to retrieve the sequence of data processing instructions for both the first back end and the second back end from a memory, and the first and second back ends are each configured to execute the sequence of program instructions. The core operates in a first mode in which the first back end is active and receives the sequence of data processing instructions from the fetch engine and the second back end is inactive, and a second mode in which the first back end is inactive and the second back end is active and receives the sequence of data processing instructions from the fetch engine, where the cycles-per-instruction rate is lower and energy consumption is higher for the first mode than the second mode.
    Type: Grant
    Filed: November 29, 2013
    Date of Patent: May 2, 2017
    Assignee: The Regents of the University of Michigan
    Inventors: Andrew Lukefahr, Reetuparna Das, Shruti Padmanabha, Scott Mahlke
  • Patent number: 9625918
    Abstract: A fluid-pressure regulator for regulating the pressure of a fluid. The regulator includes a variable-resistance fluid element and a variable-volume fluid element located downstream of the variable-resistance element. Pressure in the fluid at the outlet of the regulator is controlled by substantially simultaneously changing the resistance of the variable-resistance element and the volume of the variable-volume element. In one example, a decrease in pressure is effected at the outlet by simultaneously increasing the resistance of the variable-resistance element and increasing the volume of the variable-volume element. Some embodiments of the regulator are particularly useful to effect long-term and high-speed pressure changes in high-resistance fluidic channel networks.
    Type: Grant
    Filed: September 17, 2015
    Date of Patent: April 18, 2017
    Assignee: Carnegie Mellon University
    Inventors: Yong-Tae Kim, Matthew Brandon Kuczenski, Philip LeDuc, William Messner
  • Patent number: 9557744
    Abstract: A mass flow controller comprises: a first flow meter constructed and arranged to measured flow rate of mass through the mass flow controller; a second flow meter constructed and arranged to measure flow rate of mass through the mass flow controller; a control valve constructed and arranged so as to control the flow rate of mass through the mass flow controller in response to a control signal generated as a function of the flow rate as measured by one of the flow meters; and a system controller constructed and arranged to generate the control signal, and to provide an indication when a difference between the flow rate of mass as measured by the first flow meter and the flow rate of mass as measured by the second flow meter exceeds a threshold.
    Type: Grant
    Filed: March 11, 2014
    Date of Patent: January 31, 2017
    Assignee: MKS Instruments, Inc.
    Inventor: Junhua Ding
  • Patent number: 9423800
    Abstract: Methods for initiating and implementing fail operational modes in an electro-hydraulic system are disclosed. In one step, a plurality of valve assemblies is provided wherein each of the valve assemblies has a pressure sensor and a position sensor in communication with an electronic system controller. The valve assemblies are in fluid communication with a hydraulic actuator, for example a linear actuator or hydraulic motor. In one step, a fault condition with one of the sensors is detected. The method may also include the steps of determining the type and location of the sensor associated with detected fault condition. In another step, an actuator state is determined wherein the actuator is in a passive state or overrunning state. Another step is initiating and implementing one of a plurality of fail operational modes based on the determination of the sensor type and location, and the actuator state.
    Type: Grant
    Filed: December 20, 2013
    Date of Patent: August 23, 2016
    Assignee: Eaton Corporation
    Inventor: Michael Berne Rannow
  • Patent number: 9411341
    Abstract: A vacuum pump controller and a method of making a devise using the same are presented. The vacuum pump controller comprises detectors for detecting whether a cassette is present in a semiconductor processing load lock; and controllers for sending control signals to a vacuum pump to control the speed voltage of the vacuum pump. The vacuum pump controller may further send control signals to control the supply of N2/H2 gas, cooling water and other vacuum pump accessories.
    Type: Grant
    Filed: May 23, 2013
    Date of Patent: August 9, 2016
    Inventors: Chin Fong Lee, Ming Zhu, Chuin Boon Yeap
  • Patent number: 9298190
    Abstract: A pilot valve assembly for use with a main valve apparatus coupled to a water pipe, includes a differential pilot valve, and first and second pilot valves. An inlet of the differential pilot valve is coupled to a junction and an outlet is coupled to the first pilot valve. The differential pilot valve is responsive to a pressure differential to open and close the differential pilot valve to control water flow therethrough to the first pilot. The first pilot valve is responsive to a first pressure to close the first pilot valve to reduce water flow therethrough. The second pilot valve is coupled to the junction to facilitate water flow through the second pilot valve when the differential valve member is open. The second pilot valve is responsive to a second pressure to close the second pilot valve to reduce water flow therethrough.
    Type: Grant
    Filed: December 31, 2013
    Date of Patent: March 29, 2016
    Inventors: Kari Juhani Oksanen, Marc Norman Ferrer Payot
  • Patent number: 9298189
    Abstract: A pilot valve assembly for use with a main valve apparatus coupled to a water pipe, includes a differential pilot valve apparatus, and first and second pilot valve apparatuses. An inlet of the differential pilot valve is coupled to a junction and an outlet is coupled to the first pilot valve apparatus. The differential pilot valve is responsive to a pressure differential to open the differential pilot valve apparatus for water to flow to the first pilot valve apparatus and to close the differential pilot valve apparatus to inhibit water flow to the first pilot valve apparatus. The second pilot valve apparatus is coupled to the junction to facilitate water flow through the second pilot valve apparatus when the second differential valve member is open. Adjustment mechanisms facilitate adjustment of the pressures responsive to which the first pilot valve member and the second pilot valve member close.
    Type: Grant
    Filed: October 31, 2013
    Date of Patent: March 29, 2016
    Inventors: Kari Juhani Oksanen, Marc Norman Ferrer Payot
  • Patent number: 9273394
    Abstract: A plasma processing apparatus includes at least three gas supply lines connected to a process chamber in parallel to allow a gas to flow therethrough, and at least three flow-rate controllers provided on the gas supply lines to detect the flow rate of the gas flowing through each of the flow-rate controllers to control the flow rate to a set value and a diagnosis method. The apparatus has a function of splitting and supplying a gas controlled to a predetermined flow rate by the third flow-rate controller, to a first flow-rate controller for the smallest detectable range of the three flow-rate controllers and to a second flow-rate controller, in order to test the operation of the control of the flow rate of the first flow-rate controller, based on the value obtained from the flow rate of the gas flowing through the second flow-rate controller and the predetermined flow rate.
    Type: Grant
    Filed: September 13, 2012
    Date of Patent: March 1, 2016
    Assignee: HITACHI HIGH-TECHNOLOGIES CORPORATION
    Inventors: Masahiro Nagatani, Yoshifumi Ogawa
  • Patent number: 9205187
    Abstract: A device including: a tubing clamp having a clamping mechanism holding closed a first fluid line while a second fluid flows along a second fluid line from a second container, the first fluid line delivers a flow of a first fluid; and a vacuum activated catch retainably coupled with the tubing clamp and coupled with the second fluid line, the vacuum activated catch including: a movable element coupled with the tubing clamp and configured for changing from a first shape to a second shape upon receipt of a deforming pressure, wherein when the movable element is in the first shape, the vacuum activated catch retains the tubing clamp in a closed position, and when the movable element is in the second shape, the vacuum activated catch releases the tubing clamp into an open position, thereby allowing the flow of the first fluid to commence within the first fluid line.
    Type: Grant
    Filed: June 12, 2012
    Date of Patent: December 8, 2015
    Assignee: CareFusion 303, Inc.
    Inventor: Robert Dwaine Butterfield
  • Publication number: 20150136236
    Abstract: Method of operating a valve (1) which connects openings (2, 3) of at least two chambers (4, 5) to one another and, for closing the openings (2, 3) of each of the chambers (4, 5), has at least one dedicated closure member (6, 7), wherein for opening one of the openings (2, 3), the chamber (4, 5) assigned to said opening (2, 3) has generated in it a positive pressure which is higher than a current pressure in the valve-housing interior (8), wherein, by virtue of this positive pressure, the closure member (6, 7) assigned to said opening is raised up from the valve seat (10, 11) assigned to said opening (2, 3) and then, through this opening (2, 3), pressure equalization is carried out between the valve-housing interior (8) and the chamber (4, 5) assigned to said opening (2, 3). (FIG.
    Type: Application
    Filed: November 19, 2014
    Publication date: May 21, 2015
    Applicant: VAT Holding AG
    Inventors: Christoph Bachmann, Florian Ehrne
  • Publication number: 20150129043
    Abstract: A valve with a valve body in which is rotatably mounted a valve member, the valve member having therein a ball check for selectively preventing fluid flow through the valve. This abstract is provided to comply with the rules requiring an abstract which will allow a searcher or other reader to quickly ascertain the subject matter of the technical disclosure and is submitted with the understanding that it will not be used to interpret or limit the scope or meaning of the claims, 37 C.F.R. 1.72(b).
    Type: Application
    Filed: November 8, 2013
    Publication date: May 14, 2015
    Inventors: Richard C. Hughes, Melvin O. Castillo, James C. Hertenberger
  • Publication number: 20150122340
    Abstract: A biased normally open check valve assembly for facilitating Multiair® engine start-up after extended periods of non-use. The check valve is biased in an open position and allows for the ventilation of air out of the system so that the engine can start. The check valve also comprises a metering groove in a valve seat. The metering groove is configured to allow a controlled flow of hydraulic fluid through the check valve when the check valve is in a closed position.
    Type: Application
    Filed: November 1, 2013
    Publication date: May 7, 2015
    Inventor: Thomas C. Edelmayer
  • Publication number: 20150114337
    Abstract: Disclosed herein is a system includes a lubricated component and a lubricant pump that selectively provides lubricant to the lubricated component. The system also includes a lubricant source in lubricant providing communication with the lubricant pump. Additionally, the system includes a lubricant flow regulation device in lubricant receiving communication with the lubricated component and lubricant providing communication with the lubricant source. The lubricant flow regulation device is configured to drain lubricant from the lubricated component to the lubricant source based on when the lubricant pump provides lubricant to the lubricated component, and to prevent drainage of lubricant from the lubricated component to the lubricant source based on when the lubricant pump stops providing lubricant to the lubricated component.
    Type: Application
    Filed: October 28, 2013
    Publication date: April 30, 2015
    Applicant: Cummins IP, Inc.
    Inventor: Michael J. Marthaler
  • Publication number: 20150114477
    Abstract: A fuel supply system for an aircraft is provided for delivering in use fuel from a fuel tank to an aircraft powerplant. The in use fuel flows along a fuel flow passage from the fuel tank to the powerplant. A downstream pump is associated with the powerplant and configured to draw fluid along the fuel flow path so as to supply it to the powerplant in use. An upstream pump is disposed in or associated with the fuel tank and operable to pump fluid along the fuel flow passage. A pressure sensor is configured to monitor a pressure at an inlet to the downstream pump. A fuel system controller is responsive to the pressure sensor and configured to control the upstream pump so as to maintain the pressure at the inlet to the downstream pump at or above a predetermined threshold pressure.
    Type: Application
    Filed: April 18, 2013
    Publication date: April 30, 2015
    Inventor: John Henry Wood
  • Publication number: 20150107681
    Abstract: A method and apparatus for compressing gases and supplying compressed gaseous fuel to a consuming device, such as a gaseous fueled vehicle or the like. One embodiment includes a gas compressor for compressing the gaseous fuel to an array of tanks having predetermined initial set points which are increasing for tanks in the array. One embodiment provides a selecting valve having first and second families of ports wherein the valve can be operated to select a plurality of ports from the first family to be fluidly connected with a plurality of ports with the second family, and such fluid connections can be changed by operation of the valve.
    Type: Application
    Filed: October 28, 2014
    Publication date: April 23, 2015
    Inventors: Walter H. Killeen, Bryan Killeen, Carl Guichard
  • Publication number: 20150107680
    Abstract: A modulating check valve and method of operating the modulating check valve adapted for mounting to an inlet of a compressor. The modulating check valve includes a flow section through which fluid flow. The flow section has an intake portal and an outlet portal connected to the inlet of the compressor. A flapper valve is disposed in the flow section to prevent backflow from the outlet portal to the intake portal. An actuator controls the flapper valve allowing the flapper valve to open, close and modulate the fluid flow from the intake portal to the outlet portal of the flow section in response to fluid pressure at an outlet of the compressor.
    Type: Application
    Filed: October 23, 2013
    Publication date: April 23, 2015
    Inventors: Walter R. Chapman, JR., James W. Swoger
  • Publication number: 20150096984
    Abstract: An aircraft fuel tank system includes at least one fuel tank having a plurality of interconnected bays and a vent arranged so as to allow an inward venting of atmospheric air. The system is arranged so as to direct the inwardly vented air along a vent duct. The vent duct is arranged so as to convey the inwardly vented air to substantially each one of the interconnected bays.
    Type: Application
    Filed: April 29, 2013
    Publication date: April 9, 2015
    Inventors: Dominic Ashton, John Wood, John Foster
  • Publication number: 20150096625
    Abstract: A valve assembly for a tank of a vehicle and a method of creating a vacuum are disclosed. A valve body defines a cavity and an outlet in fluid communication with the cavity for venting the tank. The assembly includes a seat disposed in the cavity of the valve body. The seat separates the cavity into first and second cavity portions. The seat defines an aperture to provide fluid communication between the first and second cavity portions. The assembly includes a cover device disposed between the seat and the outlet. The cover device defines at least one hole therethrough. The cover device is movable between a rest position engaging the seat to minimize fluid communication between the aperture and the hole and an actuated position spaced from the seat to increase fluid communication between the aperture and the hole when a vacuum is created in the first cavity portion.
    Type: Application
    Filed: December 15, 2014
    Publication date: April 9, 2015
    Applicant: EATON CORPORATION
    Inventor: Vaughn Kevin Mills