Coaxial Actuator, Seat And Valve Patents (Class 251/61.2)
  • Patent number: 10497525
    Abstract: An electromagnetic contactor to open and close a contact formed by a movable contact and a fixed contact. The electromagnetic contactor includes an arc extinguishing cover having a shape in which a center portion is concaved with respect to an edge portion in a first direction and in which faces having a same height as the center portion continue in a second direction crossing the first direction; and an operation indicating piece arranged at an end of the movable contactor, to indicate a contact state of the contact by projecting from the center portion of the arc extinguishing cover or by being embedded therein. A step between the edge portion and the center portion of the arc extinguishing cover is equal to or larger than a projecting amount of the operation indicating piece that projects from the center portion of the arc extinguishing cover.
    Type: Grant
    Filed: September 29, 2015
    Date of Patent: December 3, 2019
    Assignee: Mitsubishi Electric Corporation
    Inventor: Satoshi Makino
  • Patent number: 9974943
    Abstract: Positive displacement using a connector with dual diaphragms is provided. For example, the connector includes a single fluid flow path, an air chamber and a valve. The single fluid flow path is configured for delivering fluid to a person and configured for receiving fluid from a person. The air chamber configured for expelling air from the air chamber when an actuator is inserted into the connector and for receiving air into the chamber when the actuator is removed from the connector. The valve plug comprises two diaphragms that separate the air chamber from the single fluid flow path. The valve plug is configured for creating positive displacement by returning the valve plug to its uncompressed state when the actuator is removed from the connector.
    Type: Grant
    Filed: January 23, 2017
    Date of Patent: May 22, 2018
    Assignee: CAREFUSION 303, INC.
    Inventors: Tyler Devin Panian, George M. Mansour
  • Patent number: 9010729
    Abstract: A membrane valve comprising a first and a second valve housing part and a membrane clamped between the valve housing parts comprises a peripherally surrounding bead on the membrane and a thin, axially movable membrane portion adjacent thereto. The bead is supported by the two valve housing parts and is provided with an undercut at a radial inner side. Further, a membrane for installation in a membrane valve is provided.
    Type: Grant
    Filed: March 29, 2012
    Date of Patent: April 21, 2015
    Assignee: Buerkert Werke GmbH
    Inventors: Johannes Baumann, Christina Ripsam, Ralf Scheibe, Holger Schwab
  • Publication number: 20150076746
    Abstract: An apparatus for moulding plastic preforms into plastic containers, includes an application unit for applying a gaseous medium onto the plastic performs. The application unit includes at least one valve unit for controlling the gaseous medium to be supplied to the plastic preform The valve unit has a working piston that is movable between at least two positions, and a control piston that is movable between at least two positions. Movement of the control piston is coupled, at least at times, to movement of the working piston. The valve unit includes a sealing unit that substantially prevents a gas flow between the working chamber and the control chamber at least in one position of the working piston and a membrane body that seals at least one area of the control piston against at least one area of the control chamber.
    Type: Application
    Filed: September 15, 2014
    Publication date: March 19, 2015
    Inventors: Eduard Handschuh, Florian Geltinger, Frank Winzinger
  • Patent number: 8956531
    Abstract: A filter device may include a filter housing having at least one filter element configured to separate the filter housing into a raw side and a clean side. A bypass valve may control a bypass for circumventing the at least one filter element, wherein the bypass valve may have a valve member for controlling a bypass opening connecting the clean side of a coupling chamber of the bypass valve with the raw side. The valve member may be configured to close the bypass opening via a pretension generated by a closing spring. The bypass valve may be an actuating device for changing the pretension acting on the valve member and the actuating device may be coupled with at least one control chamber and configured to set the pretension acting on the valve member based at least in part on a control pressure of the control chamber.
    Type: Grant
    Filed: August 11, 2010
    Date of Patent: February 17, 2015
    Assignee: Mahle International GmbH
    Inventors: Alfred Gröner, Gerhard Steiner
  • Patent number: 8939428
    Abstract: Apparatus and a control system for monitoring (preferably digitally) and/or controlling pressure to a pneumatic load such as a proportional fluid control valve and using a measurement input from a fluid measurement device that responds to a flow rate, the liquid measurement input being used to control the pressure to the pneumatic load so that pneumatic load may be increased or decreased (to proportionally open or close the pneumatic valve) to change the flow rate of the fluid to a desired rate. The pneumatic load can also be adjusted (to proportionally open or close the pneumatic valve) to accommodate changes in temperature and viscosity of a fluid.
    Type: Grant
    Filed: March 29, 2013
    Date of Patent: January 27, 2015
    Assignee: Entegris, Inc.
    Inventors: Marc Laverdiere, Robert F. McLoughlin, George Gonnella, Iraj Gashgaee, Jennifer Marrs
  • Publication number: 20150021502
    Abstract: This invention provides a fluidic device comprising a diaphragm valve having a fluidics layer, an actuation layer and an elastic layer between the fluidics layer and the actuation layer, the elastic layer having a diaphragm that is mechanically sealed against the fluidics layer and the actuation layer by a sealing ring in the actuation layer.
    Type: Application
    Filed: June 30, 2014
    Publication date: January 22, 2015
    Inventor: Mattias Vangbo
  • Patent number: 8900118
    Abstract: An implantable device controls the movement of fluid to an inflatable portion of a gastric band. The implantable device includes a body. The body has an inlet, an outlet and a valve seat positioned between the inlet and the outlet. The body defines a fluid passage from the inlet to the outlet. The implantable device also includes a diaphragm. The diaphragm has one or more edges coupled to the body. The diaphragm is made of an elastomeric material and capable of being moved between a closed position that blocks the valve seat and does not allow the fluid to move from the inlet to the outlet and an open position that does not block the valve seat and allows the fluid to move from the inlet to the outlet.
    Type: Grant
    Filed: May 15, 2013
    Date of Patent: December 2, 2014
    Assignee: Apollo Endosurgery, Inc.
    Inventors: Janel A. Birk, Robert E. Hoyt, Jr., Sean Snow
  • Patent number: 8864102
    Abstract: An actuator for actuating a plunger of a valve is provided. The actuator has an inlet and includes first and second hollow caps. A main actuation assembly is provided between the caps. The main actuation assembly includes a deformable diaphragm; first and second chambers, static sealing elements and a main piston movable between actuated and unactuated positions. A biasing mechanism biases the piston in the unactuated position. When pressurized gas is flown through the inlet and/or drawn from the outlet of the actuator, the first chamber expands, moving the main piston from the unactuated position to the actuated position, an actuating stem connected to the main piston thereby sliding within a channel provided in the bottom cap. Stackable actuating assemblies can also be used between the caps. Using static sealing elements advantageously avoids friction between moving parts.
    Type: Grant
    Filed: July 5, 2012
    Date of Patent: October 21, 2014
    Assignee: Mecanique Analytique Inc.
    Inventor: Yves Gamache
  • Publication number: 20140264104
    Abstract: A diaphragm-type control valve having a valve body holding a diaphragm and a depression member is provided preferably for use in the separation of and fluid control between a fluid source and a pressurized gas volume. An inner surface of the valve body defines a chamber having an inlet and an outlet in communication with the chamber, and an elongated seat member. The depression member biases the diaphragm to a seated position within the valve.
    Type: Application
    Filed: March 14, 2014
    Publication date: September 18, 2014
    Applicant: TYCO FIRE PRODUCTS LP
    Inventors: Yoram Ringer, Su Yang
  • Patent number: 8826933
    Abstract: A control assembly for converting a “fail-close” regulator to a “fail-open” regulator, or vice versa, without having to modify or reconfigure a casing of the regulator includes a control member, a central rod, and a spring disposed between first and second spring seats. A regulator including the control assembly includes a valve body and an actuator casing, the valve body defining a fluid flow-path. The control member is slidably disposed within the actuator casing and adapted for displacement relative to the valve body for controlling the flow of fluid through the flow-path. The spring and spring seats are disposed about the central rod, such that the spring biases the control member into a predetermined position relative to the regulator casing.
    Type: Grant
    Filed: September 12, 2007
    Date of Patent: September 9, 2014
    Assignee: Fisher Controls International LLC
    Inventors: Daniel G. Roper, Harold J. McKinney, Thomas L. Weyer, Jr.
  • Patent number: 8752578
    Abstract: A regulator (108) comprising a first chamber (132), and second chamber (134) and an actuator (130). The second chamber (134) is coupled to the first chamber (132) through an aperture (156). The actuator (130) is arranged to the adjust the size of the aperture (156) according to a pressure differential between fluid pressure in the first chamber (132) and a pressure reference (36). The rate of change of the cross sectional area of the aperture (156) is arranged to have a non-linear response to a change in the pressure differential.
    Type: Grant
    Filed: May 10, 2012
    Date of Patent: June 17, 2014
    Assignee: Parker Hannifin Manufacturing (UK) Ltd.
    Inventors: Adrian Mincher, Daniel Copley
  • Patent number: 8740179
    Abstract: Two-piece trim apparatus for use with fluid regulators are described. In one described example, a fluid regulator has a regulator body and a first seat ring to provide a first flow characteristic disposed within the body and defining a fluid orifice. The first seat ring is interchangeable with a second seat ring that is to provide a second flow characteristic different from the first flow characteristic. The fluid regulator also includes a first cage to provide a third fluid characteristic and removably coupled to the first seat ring. The first cage is interchangeable with a second cage that is to provide a fourth fluid flow characteristic different from the third flow characteristic. The first cage can be selectively coupled to the first seat ring or the second seat ring and the first seat ring can be selectively coupled to the first cage or the second cage.
    Type: Grant
    Filed: January 16, 2008
    Date of Patent: June 3, 2014
    Assignee: Fisher Controls International, LLC
    Inventors: James Lyman Griffin, Jr., Thomas Leroy Weyer, Jr., Daniel Gunder Roper, Harold Joe McKinney
  • Patent number: 8733392
    Abstract: A paint circulating system back pressure regulator comprises a flow passage for paint, at least part of which is disposed between a fixed structure and a moveable surface which is moveable to vary the width of the flow passage so as to regulate a pressure of paint upstream of the regulator. The regulator is also provided with a chamber having an opening for communicating with a supply of a pressurized fluid for controlling operation of the regulator.
    Type: Grant
    Filed: September 12, 2006
    Date of Patent: May 27, 2014
    Assignee: Finishing Brands UK Limited
    Inventors: Alan Smith, Nigel Charles Wood
  • Patent number: 8714178
    Abstract: In a valve stem connection structure of a pressure reducing valve, an insertion recess portion (72) opened toward a valve mechanism is coaxially provided in a diaphragm rod (68); a reduced diameter stem portion (30a) and a pair of enlarged diameter stem portions (30b, 30c) are provided in one end portion of the valve stem (30); a holding plate (74) is inserted into the insertion recess portion (72) while the reduced diameter stem portion (30a) is loosely inserted into the engaging recess portion (73); and an engaging ring (78) expandable and contractable in a radial direction of the valve stem (30) is engaged with an arc-shaped first engaging groove (76) provided in an outer periphery of the holding plate (74) and an annular second engaging groove (77) provided in an inner periphery of the insertion recess portion (72).
    Type: Grant
    Filed: September 10, 2010
    Date of Patent: May 6, 2014
    Assignee: Keihin Corporation
    Inventor: Hiroaki Yamamoto
  • Patent number: 8708309
    Abstract: A spring seat for self aligning a bias-open or bias-close spring is disposed within a tubular control element of a gas regulator and designed to reduce side loading of the spring, which can cause the spring to prematurely fail. The spring seat can comprise a spring seat adaptor and a seat ring. The spring seat adaptor is fixed inside of the tubular control element and the seat ring is movably mounted on the spring seat adaptor via a ball and socket type joint. The movable seat ring is engaged by the spring and adapted to be self-aligned through three-dimensional displacement relative to the spring seat adaptor via the ball and socket joint.
    Type: Grant
    Filed: April 21, 2010
    Date of Patent: April 29, 2014
    Assignee: Emerson Process Management Regulator Technologies, Inc.
    Inventors: Daniel G. Roper, Douglas J. Scheffler, Harold J. McKinney
  • Patent number: 8696231
    Abstract: Apparatus for operatively connecting an actuator rod to a valve stem is disclosed. An example apparatus includes a connector housing having an outer surface and an inner surface where the inner surface defines an internal cavity. The example apparatus also includes an actuator rod passage extending from the outer surface into the internal cavity that is adapted to receive at least a portion of the actuator rod and a valve stem passage extending from the outer surface into the internal cavity that is adapted to receive at least a portion of the valve stem. Additionally, the example apparatus includes a load relieving body disposed within the internal cavity between the actuator rod passage and the valve stem passage.
    Type: Grant
    Filed: December 21, 2005
    Date of Patent: April 15, 2014
    Assignee: Fisher Controls International LLC
    Inventors: Michael Wildie McCarty, Thomas Adam Brandau, Galen Dale Wilke, Michael Melvin Anderson, Doug Gethmann
  • Publication number: 20140014859
    Abstract: Actuator apparatus having internal passageways are disclosed. An example apparatus includes an actuator casing having a load apparatus to define an upper pressure chamber and a lower pressure chamber. The upper pressure chamber is opposite the lower pressure chamber. A yoke is to couple to the actuator casing to a fluid valve. An internal passageway is formed in a body of the yoke to fluidly couple a control fluid to at least one of the first or the lower pressure chamber. A fluid connector assembly is positioned in the actuator casing to fluidly couple the internal passageway to the upper pressure chamber. The load apparatus is between the internal passageway of the yoke and the upper pressure chamber.
    Type: Application
    Filed: July 12, 2012
    Publication date: January 16, 2014
    Inventor: Michael Wildie McCarty
  • Publication number: 20140014202
    Abstract: An irrigation valve has a liquid passage, a sealing diaphragm and a control port that can receive control signals. The sealing diaphragm is held in the valve in a non clamped manner and is adapted to seal the passage. Upon receipt of a control signal the sealing diaphragm bends and opens a path for liquid around the sealing diaphragm that can exit the valve.
    Type: Application
    Filed: February 26, 2012
    Publication date: January 16, 2014
    Applicant: NETAFIM, LTD.
    Inventor: Ron Keren
  • Patent number: 8502163
    Abstract: A valve unit configured for a charged particle beam device having a beam path 2 is described. The valve unit includes a vacuum sealed valve housing 102 configured for a pressure difference between the inside of the valve housing and the outside of the valve housing, wherein the housing provides a beam path portion 103 for having a charged particle beam pass therethrough along the beam path, a valve positioning unit adapted for selectively providing a first movement of the valve housing such that the beam path portion is selectively moved into and out of the beam path, and at least one sealing element 122 configured for a second movement, wherein the second movement is different from the first movement.
    Type: Grant
    Filed: November 15, 2011
    Date of Patent: August 6, 2013
    Assignee: ICT Integrated Circuit Testing Gesellschaft für Halbleiterprüftechnik mbH
    Inventor: Thomas Jasinski
  • Patent number: 8469332
    Abstract: A valve-closing pressure chamber and a valve-opening pressure chamber are arranged on both sides of a main diaphragm inside an outlet shutoff valve. An upper supply/discharge tube and a lower supply/discharge tube are connected to a housing forming the outlet shutoff valve. The upper and lower supply/discharge tube supply and discharge air to and from the valve-closing pressure chamber and the valve-opening pressure chamber, respectively. An opening end, which is on the pressure chamber side, of each supply/discharge tube is obliquely cut relative to the direction of axis of the supply/discharge tube, which increases the opening area of the opening end. This prevents water present in the pressure chamber from adhering to the opening end of each supply/discharge tube and prevents the adhered water from freezing. This in turn prevents the opening end of the supply/discharge tube from being closed or the opening area from being reduced. As a result, operation performance of the outlet shutoff valve is enhanced.
    Type: Grant
    Filed: November 7, 2007
    Date of Patent: June 25, 2013
    Assignee: Toyota Jidosha Kabushiki Kaisha
    Inventor: Masahiro Takeshita
  • Patent number: 8443830
    Abstract: A heater built-in valve usable even under a high-temperature condition beyond 200° C. is provided. Piston driving means 7 has an upper compressed-air introducing chamber 24 for moving a piston 6 downward, and a lower compressed-air introducing chamber 25 for moving the piston 6 upward. Piston sealing means 8 has an upper bellows 29 that seals the upper compressed-air introducing chamber 24, and a lower bellows 30 that seals the lower compressed air introducing chamber 25.
    Type: Grant
    Filed: April 1, 2008
    Date of Patent: May 21, 2013
    Assignee: Fujikin Incorporated
    Inventors: Tsuyoshi Tanikawa, Michio Yamaji, Tadayuki Yakushijin, Hiroshi Fukuchi, Keisuke Ishibashi
  • Patent number: 8430120
    Abstract: A proportional fluid control valve with improved linearity and reduced hysteresis is disclosed. The valve allows for smooth, gentle flow of fluid in a substantially linear fashion, with minimal turns. Preferably the valve is pneumatically actuated. Where temperature is not an issue, the valve can be actuated by any suitable means, including stepper motors, linear motors, voice coils or other force actuators. A versatile molded valve body that requires fewer parts compared to a machined valve is disclosed. In one embodiment, the molded valve body is designed specifically for flow control and contains two sensor housings with carefully positioned flow paths to optimize the use of space. The sensor housing or housings can be separately formed as inserts, allowing installation in various orientations.
    Type: Grant
    Filed: November 21, 2011
    Date of Patent: April 30, 2013
    Assignee: Entegris, Inc.
    Inventors: Marc Laverdiere, Robert F. McLoughlin, George Gonnella, Iraj Gashgaee, Jennifer Marrs
  • Patent number: 8408515
    Abstract: A pressure-reducing valve is provided in which a diaphragm rod connected to a valve body of a valve mechanism is connected to a central part of a diaphragm having its peripheral edge part clamped between a body and a diaphragm cover, wherein the diaphragm (28) is formed from a disk-shaped rubber sheet for which the sheet thickness of at least its peripheral edge part is uniform in the natural state, and in a state in which the diaphragm cover (17) is fixed to the body (16) so that the peripheral edge part of the diaphragm (28) is compressively held between a collar portion (17b) of the diaphragm cover (17) and a clamping face (91) of the body (16), a portion having, of the gap between the collar portion (17b) and the clamping face (91), a minimum gap is positioned further inward in the radial direction of the diaphragm (28) than a portion having a maximum gap.
    Type: Grant
    Filed: July 8, 2008
    Date of Patent: April 2, 2013
    Assignee: Keihin Corporation
    Inventors: Hiroaki Yamamoto, Yutaka Chiba, Yoshio Saito, Yoji Nakajima
  • Patent number: 8403294
    Abstract: In an example, an apparatus, such as a microfluidic assembly, can include or can include using a channel including a valve seat, a valve film configured to adjust position with respect to the valve seat, and a first electrode configured to actuate the valve film electrostatically to adjust the position of the valve film to control a flow of a fluid in the channel laterally across the valve seat, the flow in a direction substantially parallel to the film.
    Type: Grant
    Filed: November 11, 2011
    Date of Patent: March 26, 2013
    Assignee: University of Virginia Patent Foundation
    Inventors: James P. Landers, Matthew R. Begley, Jerome P. Ferrance, Michael H. Jones, Jennifer Monahan-Dian
  • Patent number: 8322364
    Abstract: An actuator for operating a valve comprises a housing, a cap, a ring and a piston. The housing has a connecting interface for being mounted on the valve. The cap substantially covers a first portion of the housing. Both the cap and the housing define a substantially enclosed space inside the housing. The ring sealably covers a second portion of the housing. The ring is equipped with two ports that are in fluid communication with the enclosed space. The piston is slidably located inside the housing. Advantageously, an actuator assembly may include the actuator as previously described and one bonnet, one of the connecting interfaces of the actuator being connected to the bonnet. The bonnet is adapted to be mounted to a valve body.
    Type: Grant
    Filed: September 22, 2009
    Date of Patent: December 4, 2012
    Assignee: MBF Stainless Valve Limited
    Inventors: Louis Lacasse, David Balasubramanian
  • Patent number: 8322359
    Abstract: A gas pressure regulator comprises a main body having a first, gas inlet pipe and a second, gas outlet pipe, a calibrated gas passage through which gas flows from the first pipe to the second pipe, a shutter housed at least partially in the main body and mobile lengthwise along a first defined line to adjust the opening of the calibrated passage, a device for actuating the shutter and a regulator spring unit opposing the movement of the shutter.
    Type: Grant
    Filed: June 4, 2010
    Date of Patent: December 4, 2012
    Assignee: O.M.T. Officina Meccanica Tartarini S.r.I.
    Inventors: Stefano Zecchi, Andrea Monti
  • Patent number: 8307846
    Abstract: A pressure control valve is provided with a valve main body (10) having a valve chamber (15) with a valve seat portion (14), a refrigerant inflow port (11) and a refrigerant outflow port (12), and a pressure response element (30) having a diaphragm (20) defining an upper surface of a valve chamber (15) and driving a valve body (17) and a lid-like member (35) defining a sealed pressure chamber (25) together with the diaphragm (20) and having a concave portion (36), an inert gas having a thermal expansion coefficient not more than a predetermined value is enclosed within said sealed pressure chamber (25), and an internal volume of the sealed pressure chamber is set such that the valve body (17) comes to a full-open state when that the pressure of the valve chamber (18) becomes a predetermined pressure or more higher than the pressure at which said valve body starts opening.
    Type: Grant
    Filed: March 30, 2009
    Date of Patent: November 13, 2012
    Assignee: Fujikoki Corporation
    Inventors: Shu Yanagisawa, Ryo Matsuda, Daisuke Watari, Hiroshi Yokota
  • Patent number: 8267110
    Abstract: A gas pressure regulator comprises a main body having a first, gas inlet pipe and a second, gas outlet pipe, a calibrated gas passage through which gas flows from the first pipe to the second pipe, a shutter housed at least partially in the main body and mobile lengthwise along a first defined line to adjust the opening of the calibrated passage, a device for actuating the shutter and a regulator spring unit opposing the movement of the shutter.
    Type: Grant
    Filed: June 4, 2010
    Date of Patent: September 18, 2012
    Assignee: O.M.T. Officina Meccanica Tartarini S.r.l.
    Inventors: Stefano Zecchi, Andrea Monti
  • Patent number: 8256740
    Abstract: A connection mechanism for fluid pipings, for connecting a plurality of the fluid pipings to flow a fluid, includes: a first component provided to one side of the plurality of the fluid pipings and including a movable portion constituting a part of a pressure control valve and operated by a differential pressure; a second component provided to another side of the plurality of the fluid pipings and including an opening and closing mechanism which is opened and closed by an operation of the movable portion constituting the part of the pressure control valve; and a transmission mechanism provided to at least one of the first component and the second component.
    Type: Grant
    Filed: August 28, 2007
    Date of Patent: September 4, 2012
    Assignee: Canon Kabushiki Kaisha
    Inventor: Toru Nakakubo
  • Patent number: 8251673
    Abstract: A displacement control valve of a variable displacement compressor opens and closes a communication passage extending between a portion of the compressor on which discharge pressure acts and a crank chamber of the compressor. The displacement of the compressor is controlled, such that discharge chamber pressure does not act on the valve body in the opening and closing direction, and pressures acting on the opposite ends of the valve body are maintained at the same level.
    Type: Grant
    Filed: July 2, 2007
    Date of Patent: August 28, 2012
    Assignee: Sanden Corporation
    Inventor: Yukihiko Taguchi
  • Patent number: 8235353
    Abstract: The present invention is a water faucet device (2a) connected to pipes and buried in a mounting surface (W1), including: a water conveying portion main body (20) having an inflow-side connecting portion (20a), an outflow-side connecting portion (20b), and double pipe connecting portions (20c, 20d) respectively communicating with these; a push valve (30) opened and closed by a pushing operation; a valve receiving main body, positioned at a predetermined position relative to the mounting surface, and having double pipe joining portions (26a, 26b) slidably joined to a double pipe connecting portion in a direction approximately perpendicular to the mounting surface, and a push valve receiving recess (26c) for receiving the push valve; and a push button unit (10a) disposed on the mounting surface, furnished with a push button (12b) for pushing the operating portion of a push valve.
    Type: Grant
    Filed: August 12, 2010
    Date of Patent: August 7, 2012
    Assignee: Toto Ltd.
    Inventors: Takafumi Miyagi, Shoji Miura
  • Patent number: 8205856
    Abstract: A metering assembly includes a fluidic chip and metering chambers. Selectable outlet valves communicate with each metering chamber to provide a discrete dispensed volume. The valves may be commonly controlled and may be formed as multi-level valves. The valves may be grouped into common substrate valve clusters. Purge channels communicate with the metering chambers and controlled purge valves allow reverse flow wash fluid to wash the metering chamber. Pressure ports are employed to actuate the valves. A method of dispensing a fluid from the fluidic chip includes a) to selectively filling (or filling) the metering chambers with a selected fluid; and b) outputting (or selectively outputting) the fluid to output locations. The total output volume of fluid dispensed from each metering chamber may be accumulated. The process may be repeated until the accumulated volume equals the desired volume and may be repeated for another fluid from a plurality of different fluids.
    Type: Grant
    Filed: May 16, 2011
    Date of Patent: June 26, 2012
    Assignee: Formulatrix, Inc.
    Inventors: Kabir James Mukaddam, Jennifer Ezu Hu, Jeremy Stevenson
  • Patent number: 8104740
    Abstract: A flow control device is provided comprising: a housing (19) including a first chamber (21) communicated with an inlet port (11) and a second chamber (22) communicated with an outlet port (12); a cylindrical portion (25), which extends in the second chamber, for communicating the first chamber with the second chamber; a valve seat (61) provided at a forward end portion (25a) of the cylindrical portion; and a valve body (32) for opening and closing the valve seat, wherein at least one of the valve seat and the valve body is made of a material, the heat deformation of which is smaller than that of material composing the cylindrical portion. Due to the foregoing, it is possible to stably adjust the flow rate of a fluid of a high temperature and pressure. A pressure chamber (29), which is communicated with the second chamber and provided with a pressure port (18), may be arranged in the housing.
    Type: Grant
    Filed: December 27, 2005
    Date of Patent: January 31, 2012
    Assignee: Surpass Industry Co., Ltd.
    Inventor: Hiroki Igarashi
  • Patent number: 8082948
    Abstract: The present application is directed to a gas-generating apparatus and various pressure regulators or pressure-regulating valves. Hydrogen is generated within the gas-generating apparatus and is transported to a fuel cell. The transportation of a first fuel component to a second fuel component to generate of hydrogen occurs automatically depending on the pressure of a reaction chamber within the gas-generating apparatus. The pressure regulators and flow orifices are provided to regulate the hydrogen pressure and to minimize the fluctuation in pressure of the hydrogen received by the fuel cell. Connecting valves to connect the gas-generating apparatus to the fuel cell are also provided.
    Type: Grant
    Filed: April 17, 2008
    Date of Patent: December 27, 2011
    Assignee: Societe BIC
    Inventors: Andrew J. Curello, Paul Spahr
  • Patent number: 8083205
    Abstract: Apparatus and method for fail-safe high-speed-pneumatic valve is disclosed. Fail-safe dependability is provided by a spring-loaded normally-closed pneumatic actuator. When the spring-loaded actuator is pressurized, the normally closed mechanism is actuated to the valve active position. Concurrently, the pressure is directly applied to deflect a diaphragm or a bellow-assembly back to sealing position. Ultra high purity embodiments with standard dome shaped diaphragms are disclosed. Additional high conductance diaphragms and bellows embodiments are employed for higher conductance valves. Novel flow path layouts are disclosed. The valves are applicable for fast gas and fluid switching and are particularly suitable for high productivity Atomic Layer Deposition (ALD) applications. Additional embodiments cover improved diaphragm and seal reliability, externally adjustable valve conductance, improved valve safety and high temperature valve seals.
    Type: Grant
    Filed: May 19, 2010
    Date of Patent: December 27, 2011
    Assignee: Sundew Technologies, LLC
    Inventor: Ofer Sneh
  • Patent number: 8056881
    Abstract: The present invention relates to microfluidic devices, and in particular, flow management in such devices. In particular, the present invention provides an electrostatic valve for flow manipulation in a microfluidic device. The valve of the present invention sits on a valve seat in a microchannel and deflects away from the valve seat by electrostatic actuation to assume an opened configuration to allow fluid flow.
    Type: Grant
    Filed: October 13, 2005
    Date of Patent: November 15, 2011
    Assignee: University of Virginia Patent Foundation
    Inventors: James P. Landers, Matthew R. Begley, Jerome P. Ferrance, Michael H. Jones, Jennifer Monahan-Dian
  • Patent number: 8016260
    Abstract: A metering assembly includes a fluidic chip and metering chambers. Selectable outlet valves communicate with each metering chamber to provide a discrete dispensed volume. The valves may be commonly controlled and may be formed as multi-level valves. The valves may be grouped into common substrate valve clusters. Purge channels communicate with the metering chambers and controlled purge valves allow reverse flow wash fluid to wash the metering chamber. Pressure ports are employed to actuate the valves. A method of dispensing a fluid from the fluidic chip includes a) selectively filling (or filling) the metering chambers with a selected fluid; and b) outputting (or selectively outputting) the fluid to output locations. The total output volume of fluid dispensed from each metering chamber may be accumulated. The process may be repeated until the accumulated volume equals the desired volume and may be repeated for another fluid from a plurality of different fluids.
    Type: Grant
    Filed: December 7, 2007
    Date of Patent: September 13, 2011
    Assignee: Formulatrix, Inc.
    Inventors: Kabir James Mukaddam, Jennifer Ezu Hu, Jeremy Stevenson
  • Publication number: 20100243928
    Abstract: A modular gas valve arrangement including a housing that has a valve chamber having a gas inlet and a gas outlet and a valve mechanism disposed in the chamber between the inlet and the outlet to control the flow of gas. An interchangeable valve control module is mounted to the housing and has a valve actuator that moves the valve mechanism to control the position of the valve mechanism to thereby control the flow of gas. A diaphragm seal is disposed between the control module and the valve mechanism to seal the valve chamber from the control module. A diaphragm seal is connected to the valve mechanism and acts to retract the valve mechanism under pressure of gas within the valve chamber.
    Type: Application
    Filed: March 9, 2010
    Publication date: September 30, 2010
    Applicant: AMERICAN FLAME, INC.
    Inventors: Christopher Flick, Michael Rogers, Jih-Ching Lai
  • Publication number: 20100243081
    Abstract: A gas pressure regulator comprises a main body having a first, gas inlet pipe and a second, gas outlet pipe, a calibrated gas passage through which gas flows from the first pipe to the second pipe, a shutter housed at least partially in the main body and mobile lengthwise along a first defined line to adjust the opening of the calibrated passage, a device for actuating the shutter and a regulator spring unit opposing the movement of the shutter.
    Type: Application
    Filed: June 4, 2010
    Publication date: September 30, 2010
    Applicant: FISHER CONTROLS INTERNATIONAL LLC
    Inventors: Stefano Zecchi, Andrea Monti
  • Patent number: 7766028
    Abstract: A variable device for regulating the outlet pressure of a fluid from a valve body, includes a pressure-sensing chamber having a wall formed by a resilient self-restoring diaphragm which is responsive to pressure in the chamber. A valve element connected to the diaphragm controls flow into the chamber. Increased pressure in the chamber decreases the flow into the chamber and decreasing pressure increases flow whereby fluid flow out from the chamber is maintained at a desired pressure. The outlet pressure is adjusted by deflecting the diaphragm in a direction to open the valve while permitting a section of the diaphragm connected to the valve member to remain responsive to the pressure in the chamber. An adjustment cover is provided to adjustably deflect the diaphragm and includes a catch mechanism to allow adjustment of the fluid outlet pressures and also retain the device at a desired value. An indicator arrangement may be provided to visually indicate the fluid outlet pressure.
    Type: Grant
    Filed: June 15, 2009
    Date of Patent: August 3, 2010
    Assignee: I-Flow Corporation
    Inventors: Roger Massengale, Stanley Fry, Charles J. McPhee
  • Patent number: 7744060
    Abstract: Apparatus and method for fail-safe high-speed-pneumatic valve is disclosed. Fail-safe dependability is provided by a spring-loaded normally-closed pneumatic actuator. When the spring-loaded actuator is pressurized, the normally closed mechanism is actuated to the valve active position. Concurrently, the pressure is directly applied to deflect a diaphragm or a bellow-assembly back to sealing position. Ultra high purity embodiments with standard dome shaped diaphragms are disclosed. Additional high conductance diaphragms and bellows embodiments are employed for higher conductance valves. Novel flow path layouts are disclosed. The valves are applicable for fast gas and fluid switching and are particularly suitable for high productivity Atomic Layer Deposition (ALD) applications. Additional embodiments cover improved diaphragm and seal reliability, externally adjustable valve conductance, improved valve safety and high temperature valve seals.
    Type: Grant
    Filed: October 18, 2004
    Date of Patent: June 29, 2010
    Assignee: Sundew Technologies, LLC
    Inventor: Ofer Sneh
  • Patent number: 7665833
    Abstract: A differential pressure valve unit that is accommodated in a liquid cartridge main body having: a liquid containing portion containing liquid; and a liquid supply portion supplying the liquid in the liquid containing portion to the outside, the differential pressure value unit including: a membrane valve that is opened when a predetermined pressure difference between the liquid containing portion and the liquid supply portion occurs; and a first member that holds the membrane valve and forms a downstream pressure chamber together with the membrane valve, wherein, in the first member, an opposing surface forming the downstream pressure chamber and having a connection port connected to the liquid supply portion has a shape corresponding to a movable range of the membrane valve, and a groove portion is provided at the opposing surface in order to allow the liquid in the downstream pressure chamber to easily flow into the connection port.
    Type: Grant
    Filed: October 27, 2006
    Date of Patent: February 23, 2010
    Assignee: Seiko Epson Corporation
    Inventors: Taku Ishizawa, Satoshi Shinada
  • Patent number: 7650903
    Abstract: A fluid controller that allows facilitated installment, piping and wiring connection to semiconductor manufacturing equipment and does not corrode even when a corrosive fluid is used, includes a flowmeter sensor section having a first ultrasonic transducer which transmits ultrasonic waves in a fluid and a second ultrasonic transducer which receives the ultrasonic waves transmitted from the first ultrasonic transducer and outputs the signal thereof to a flowmeter amp section. An adjustment valve that adjusts the flow rate of the fluid using operation pressure is provided, and at least the flowmeter sensor section and the adjustment valve are connected to and disposed in a casing having a fluid inlet and a fluid outlet.
    Type: Grant
    Filed: August 31, 2005
    Date of Patent: January 26, 2010
    Assignee: Asahi Organic Chemicals Industry Co., Ltd.
    Inventor: Takashi Yamamoto
  • Patent number: 7647938
    Abstract: A fill valve assembly for controlling liquid flow into a reservoir includes a mounting adapter defining a liquid inlet passage for connection to a riser for supplying water to the valve and which renders the fill valve readily mountable and demountable for installation and maintenance. A valve body has liquid inlet and outlet openings and a pressure-responsive member is disposed within the valve body and defines a control chamber with which the liquid inlet passage communicates opposite a second side of the pressure responsive member also in communication with the liquid inlet for selectively opening and closing the inlet opening to liquid flow in response to liquid pressure in the control chamber.
    Type: Grant
    Filed: October 26, 2005
    Date of Patent: January 19, 2010
    Assignee: Jobe Holdings Limited
    Inventors: David Jobe, Robin Jobe
  • Patent number: 7617874
    Abstract: A valve control system for a wellbore includes a fiber composite actuator functionally coupled to a valve operating member and means for controllably charging an interior of the actuator with fluid under pressure. A valve for a wellbore includes a valve stem and a valve seat associated with a valve body. The valve stem and valve seat are configured to enable fluid flow from an inlet port in the valve body to an outlet port in the valve body when the stem is moved from the seat. An axial contraction fiber composite actuator is functionally coupled to the valve stem. The valve includes means for controllably charging an interior of the actuator with fluid under pressure.
    Type: Grant
    Filed: June 13, 2007
    Date of Patent: November 17, 2009
    Assignee: Schlumberger Technology Corporation
    Inventor: Murat Ocalan
  • Patent number: 7565916
    Abstract: The pneumatic oscillating valve includes a housing defining an internal chamber, an inlet passageway, and an outlet passageway. An annular seat extends into the internal chamber. A diaphragm is disposed in the internal chamber. The diaphragm seats against the annular seat and separates the inlet passageway from the outlet passageway. A spring engages the diaphragm to seat the diaphragm against the annular seat. As fluid is admitted to the inlet passageway, pressure increases in the inlet passageway until sufficient pressure is present to overcome the spring and unseat the diaphragm. The inlet passageway is more restrictive to fluid flow than the outlet passageway such that fluid is exhausted more quickly from the outlet passageway than can pass through the inlet passageway allowing pressure in the inlet passageway to reduce to a point less than the spring force of the spring thereby allowing the diaphragm to reseat on the seat.
    Type: Grant
    Filed: January 12, 2006
    Date of Patent: July 28, 2009
    Assignee: Wabtec Holding Corp.
    Inventor: James E. Hart
  • Patent number: 7552906
    Abstract: There is provided a valve assembly with an inlet passage and an outlet passage in communication with a valve chamber, a diaphragm mounted at the valve chamber for movement between a closed position, substantially preventing the flow of fluid from the inlet passage to the outlet passage, and an opened position, defining a path of fluid flow between the inlet passage and the outlet passage, and a pressure chamber disposed in the valve chamber above the diaphragm for retaining fluid pressure to control the diaphragm position. The valve assembly provides improved support for the diaphragm at an outlet aperture of the pressure chamber, air bleed from the pressure chamber, and upstream shutoff.
    Type: Grant
    Filed: July 17, 2006
    Date of Patent: June 30, 2009
    Assignee: Rain Bird Corporation
    Inventors: Kevin M. Irwin, Kenneth J. Skripkar
  • Patent number: 7192001
    Abstract: A microvalve device includes a semiconductor-based valve housing that defines a flow passage, and a valve face disposed within the valve housing and in fluid communication with the flow passage. The microvalve device further includes a thermal expansion actuator that drives movement of the valve face from a first position to a second position relative to the flow passage, and a capacitor that holds the valve face in the second position. The microvalve may also include an insulating layer disposed on portions of the semiconductor-based valve housing, and a capacitance sensor for monitoring a capacitance level to determine when the valve face reaches the second position. Once the sensor indicates that the second position has been reached, power is no longer applied to the thermal expansion actuator such that power is only substantially consumed during the transition from the first position to the second position.
    Type: Grant
    Filed: May 10, 2004
    Date of Patent: March 20, 2007
    Assignee: The Regents of the University of Michigan Office of Technology Transfer
    Inventors: Kensall D. Wise, Joseph A. Potkay
  • Patent number: 7185489
    Abstract: A particulate trap has a housing and a plurality of filters disposed within the housing. The particulate trap also has a plurality of dividers fluidly isolating one or more of the plurality of filters into filter divisions. The particulate trap has at least one inlet and at least one outlet individually associated with each filter division, and a valve assembly configured to selectively block a flow of exhaust air through each of the inlets.
    Type: Grant
    Filed: December 24, 2003
    Date of Patent: March 6, 2007
    Assignee: Caterpillar Inc
    Inventors: Owen Charles Kolstad, Kartik Ganesan Iyer, Kerry Allen Delvecchio, Joanna Louise Williams