Fluid Actuated Or Retarded Patents (Class 137/15.19)
  • Patent number: 10288180
    Abstract: An improved membrane valve and method for manufacturing such membrane valve. The improved membrane valve can be used for transferring fluids or gases in hermetic or semi-hermetic compressors, including a method and system for manufacturing a membrane valve and a membrane valve with applications for use in several motors, particularly in hermetic or semi-hermetic compressors which use, as a refrigeration fluid, an appropriate type of gas thus promoting the refrigeration physical affect. A body and a membrane of the membrane valve are produced from substantially thin metallic plates separately in accordance to an available process and can be subjected to rounding in order to eliminate live corners, and then juxtaposed thus composing the valve, with the above mentioned membrane on one side, fitted to the body which is fixed through a connection process and, on the other side, left free to oscillate.
    Type: Grant
    Filed: October 14, 2016
    Date of Patent: May 14, 2019
    Assignee: Barnes Group Inc.
    Inventor: Jose Ubaldino Rosa
  • Patent number: 9629993
    Abstract: A tubing adapter for interconnection with a least one tubing section of a medical device, a dialysis fluid tubing system including such a tubing adapter, a medical device including such a dialysis fluid tubing system, and a method for avoiding a pressure within a dialysis fluid tubing system that is below a minimum pressure are described.
    Type: Grant
    Filed: March 11, 2013
    Date of Patent: April 25, 2017
    Assignee: Fresenius Medical Care Deutschland GmbH
    Inventor: Juergen Klewinghaus
  • Patent number: 9022055
    Abstract: An improved valve assembly having an integral single piece housing (1) having an inlet (15), an outlet and defining an inwardly extending wall forming a valve seat (3); a valve member (4) moveable within the housing (1) between a closed position and an open position and a seal (11) to form a fluid tight seal between the valve member (4) and the valve seat (3) when the valve member is in the closed position. The seal (11) also acting to retain the valve member (4) within the housing (1) and in which the housing defining end portions which extend axially away from the valve member (4) at any position of the valve member between the open and closed positions.
    Type: Grant
    Filed: October 16, 2009
    Date of Patent: May 5, 2015
    Assignee: Cambridge Reactor Design Limited
    Inventors: Bashir Husein Harji, Christopher Mitchelmore, Malcolm Withers
  • Publication number: 20150096657
    Abstract: A pneumatic control valve that, when implemented inside a pneumatic tire having an internal reversible peristaltic pump, is configured to prevent air from entering the peristaltic pump if a tire air pressure in a pressurizable cavity of the tire is greater than a selectable set point pressure. The control valve is further configured to open an air passage between an atmosphere external to the tire and an intake of the peristaltic pump if the tire air pressure in the pressurizable cavity of the tire is less than or equal to the selectable set point pressure.
    Type: Application
    Filed: December 15, 2014
    Publication date: April 9, 2015
    Inventors: Larry P. Bennett, Lalit M. Patil
  • Patent number: 8978695
    Abstract: A check valve assembly has a body having a central cavity intersected by upstream and downstream flow passages. A seat is secured by a threaded engagement in the upstream flow passage. An access bore intersects the cavity and has a support shoulder formed in it. A holder is supported on the support shoulder. A flapper is pivotally secured to the holder and located in the cavity for movement between an open position and a closed position blocking flow through the seat. A straight edge portion in the access bore engages a straight edge portion of the holder to prevent rotation of the holder. A fastener extends through a hole in the support shoulder into engagement with the seat to prevent rotation of the seat.
    Type: Grant
    Filed: September 10, 2012
    Date of Patent: March 17, 2015
    Assignee: S.P.M. Flow Control, Inc.
    Inventors: Brian Witkowski, Nuder Said
  • Patent number: 8960216
    Abstract: A diaphragm control valve has a universal diaphragm mounting location, the diaphragm control valve includes a bonnet, a valve body, a diaphragm, and a clamping washer. The bonnet includes a first clamping surface that transitions into a first annular retention surface formed by a skirt, and the valve body includes a second clamping surface that transitions into a second annular retention surface formed by an upturned annular lip.
    Type: Grant
    Filed: March 21, 2011
    Date of Patent: February 24, 2015
    Assignee: Tescom Corporation
    Inventors: Jason D. Clifford, Thomas W. Logan
  • Patent number: 8915260
    Abstract: A pressure relief device is disclosed for a system containing a pressurized fluid. The device includes a main valve body having inlet and outlet flow ports and a valve plug positioned to seal the flowpath of the pressurized fluid between the inlet port and the outlet port of main valve body. A force transmission component is connected to the valve plug and an activation component is installed between the force transmission component and a mounting surface. The activation component is configured to prevent axial movement of the valve plug until a predetermined pressure is exerted on the valve plug. The force transmission component more efficiently transfers the output force acting on the valve plug to the activation component.
    Type: Grant
    Filed: September 9, 2005
    Date of Patent: December 23, 2014
    Assignee: BS&B Safety Systems, Limited
    Inventors: Greg Klein, Charlie Beair, Joseph P. Kelly, Geof Brazier
  • Publication number: 20140355253
    Abstract: The present disclosure relates to an apparatus with a closed housing, as well as isolation and manufacture method thereof. The apparatus is arranged in a first medium during operating, and the inside of the apparatus is filled with a second medium the pressure of which is higher than the pressure of the first medium. By means of the apparatus with the closed housing and the isolation and manufacture method according to the embodiments of the present disclosure, at least one of the following objects may be achieved: achieving sufficient sealing with relatively low cost, improving the performance and/or lifetime of the devices contained in the apparatus, and facilitate the maintaining and replacing of the apparatus and the devices contained therein.
    Type: Application
    Filed: May 22, 2014
    Publication date: December 4, 2014
    Applicant: OSRAM GmbH
    Inventors: Longshan YANG, SiXiong Zeng, WeiHuang Chen, Baisong Wang
  • Patent number: 8869815
    Abstract: A pinch valve, a chip including the pinch valve, a peristaltic pump including the pinch valve and a method for manufacturing the pinch valve. The pinch valve includes a first substrate, a second substrate, and a third substrate. The third substrate is formed from an elastic material and situated between the first and second substrates. The first substrate adjoins the third substrate and includes at least one first recess on the side adjacent to the third substrate. The second substrate adjoins the third substrate and includes at least one second recess on the side adjacent to the third substrate. The first recess and the second recess are situated at least partially opposite each other.
    Type: Grant
    Filed: April 23, 2009
    Date of Patent: October 28, 2014
    Assignee: Robert Bosch GmbH
    Inventors: Manuela Schmidt, Jochen Rupp
  • Patent number: 8839808
    Abstract: In an assembling structure of an actuator part of a chemical liquid valve, a cover is formed with a protrusion extending in a radial direction of a valve element, and a cylinder is formed with an engagement part engageable with the protrusion. A cover is placed to hold a spring in a compressed state in the cylinder and make a cap part cover an opening of the cylinder. The protrusion and the engagement part are engaged with each other to integrally connect the cylinder and the cover without separating from each other.
    Type: Grant
    Filed: October 28, 2010
    Date of Patent: September 23, 2014
    Assignee: CKD Corporation
    Inventors: Naofumi Murata, Hiroyuki Murase, Kazuhiro Sugata, Shinji Ikenoya
  • Patent number: 8839807
    Abstract: A rapid response self-closing pressure equalization vent employs a frame supported in a compartment divider and a movable vent portion having a periphery sealingly engaging the frame in a closed position. Multiple resilient extension elements are attached to the frame and engage the movable vent portion for even displacement around a periphery of the movable vent portion relative to the frame to an open position responsive to a pressure differential on the movable vent portion. The resilient extension elements retract upon equalization of the pressure differential to reseat the movable vent portion in the frame.
    Type: Grant
    Filed: October 8, 2010
    Date of Patent: September 23, 2014
    Assignee: The Boeing Company
    Inventors: Steven R. Kent, James S. Wells, John E. Kuhn
  • Publication number: 20140196798
    Abstract: Microscale valves for use in, e.g., micropump devices, may be formed of a slitted diaphragm bonded to the interior of a valve tube. A bump in the diaphragm and/or a backward-leakage stopper may increase the breakdown pressure of the valve. A push-rod may be used to pre-load the valve membrane to thereby increase the cracking pressure.
    Type: Application
    Filed: January 13, 2014
    Publication date: July 17, 2014
    Inventors: Yu-Chong Tai, Po-Ying Li, Fukang Jiang, Changlin Pang, Natasha Yvette Bouey, Man Ting Chou, Atoosa Lotfi
  • Publication number: 20140191150
    Abstract: A method of forming a poppet valve having a stem, a valve head and a valve seat while concurrently maintaining compressive residual stress without grain coarsening on both the valve body and the valve seat. The method includes forming a rounded cladded part on the valve head of the poppet valve by welding and forming a valve seat surface at a predetermined aperture angle and cutting the cladded part to form a smooth surface which is subjected to uniform contact pressure at a temperature less than the recrystallization temperature of the base material or cladding material, whichever is lower, to enhance the durability of the valve seat.
    Type: Application
    Filed: March 13, 2014
    Publication date: July 10, 2014
    Applicant: Nittan Valve Co., Ltd.
    Inventors: Maiku MIKAMI, Kazunori KURAHASHI
  • Patent number: 8720468
    Abstract: A pouch air valve includes a hollow tube, a first suction plate, a second suction plate and an air valve. The hollow tube has a central passage running through two sides thereof. The air valve fills and seals the central passage. The first and second suction plates encircle the outer wall of the hollow tube and suck the sealed pouch respectively to couple each other. A method for using includes the following steps: preparing a pliable sealed pouch and forming on the sealed pouch an aperture smaller than suction areas of the first and second suction plates; running the hollow tube through the aperture and positioning the first and second suction plates at two sides of the sealed pouch to couple each other. Air can be sucked out from the sealed pouch for vacuuming or fresh-keeping gas can be injected into the sealed pouch to meet requirements.
    Type: Grant
    Filed: August 29, 2011
    Date of Patent: May 13, 2014
    Inventor: Wei-Ling Chen
  • Patent number: 8720467
    Abstract: A purging device is provided for an assembled unit for a vehicle, having both a wheel including a rim and a tire. The purging device has a body connected to the inflation tube of the assembled unit, the body being designed to be subjected to the inflation pressure of the assembled unit, and a piston able to move inside the body. The piston operates an open/close element, fixed to the piston, between a closed position and a purging position of the body, the open/close element being normally closed, the open/close element and the piston each having a face designed to be exposed to the inflation air inside the body in the closed position. The open/close element is opened by the action of an operating force on the piston. Also disclosed is a method for deflating an assembled unit.
    Type: Grant
    Filed: June 3, 2009
    Date of Patent: May 13, 2014
    Assignees: Michelin Recherche et Technique S.A., Compagnie Generale des Etablissements Michelin
    Inventor: Olivier Ferlin
  • Publication number: 20140109983
    Abstract: In one featured embodiment, a spring assembly for a valve comprises a spring, a spring seat including a cup-shaped portion for seating one end of the spring, and a ball received within a recess formed within the cup-shaped portion of the spring seat. The ball is defined by a ball diameter. A disc prevents the ball from contacting a piston. The disc is defined by an outer diameter and includes a center opening defined by an inner diameter. A ratio of the inner diameter to the ball diameter is between 0.60 and 0.65.
    Type: Application
    Filed: October 23, 2012
    Publication date: April 24, 2014
  • Publication number: 20140109544
    Abstract: In one featured embodiment, a closure sleeve for a valve comprises a sleeve body surrounding a center axis and defined by an overall length extending from an upstream end to a downstream end. The sleeve body has an internal cavity that is enclosed at the downstream end and is open at the upstream end. The internal cavity is defined in part by a piston contact surface that is defined by an inner diameter. The piston contact surface is configured to slide against a piston to be received within the internal cavity, and a ratio of the inner diameter to the overall length is between 1.0 and 1.5.
    Type: Application
    Filed: October 23, 2012
    Publication date: April 24, 2014
    Applicant: Hamilton Sundstrand Corporation
    Inventors: Aaron Rickis, Francis P. Marocchini
  • Publication number: 20140048148
    Abstract: A pressure relief valve includes a singular body that encloses a seat and a stationary shim, a poppet, within the singular body, that is forced against a seat by a spring attached to the stationary shim, and a pin inserted into the pressure relief valve body to lock the pressure relief valve into a housing bore. The poppet includes a nose extension that extends into a void enclosed by the seat to provide damping. The seat includes a non-threaded stepped region on its outer surface and the singular body includes a complementary stepped region on its inner surface such that when the seat is fit into the singular body, the stepped region of the seat and the complementary stepped region of the singular body interface with each other to prevent movement of the seat toward the spring. The pin includes a coating to reduce friction and galling.
    Type: Application
    Filed: October 25, 2013
    Publication date: February 20, 2014
    Applicant: Ausco, Inc.
    Inventor: FRANCIS J. MARTIN
  • Publication number: 20140034856
    Abstract: To provide a pneumatic control valve including: a valve body 10; a valve opening/closing mechanism section 20; a pneumatic control section 60 for the valve opening/closing mechanism 20 that is coupled to the valve element 21 via a piston stem 62; a diaphragm 30 that defines a partition between a fluid and the pneumatic control section 60; a cylindrical lower stopper 40 that is fixed to the valve body 10 as anti-falling off for the valve element 21 and the diaphragm 30 inserted into a valve chamber 13, and supports movement of the piston stem 62; and a cylindrical upper stopper 50 that is fixed to the valve body 10 as anti-falling off for the piston stem 62 inserted into a piston chamber 15, and supports movement of the piston stem 62.
    Type: Application
    Filed: July 31, 2013
    Publication date: February 6, 2014
    Applicant: Surpass Industry Co., Ltd.
    Inventors: Takashi IMAI, Hiroki Igarashi
  • Publication number: 20130312840
    Abstract: A valve actuator apparatus and method for preventing latitudinal movement of a diaphragm actuator spring. The downstop is fitted with spring retainers to prevent latitudinal movement of the spring upon compression.
    Type: Application
    Filed: May 23, 2012
    Publication date: November 28, 2013
    Applicant: Array Holdings, Inc.
    Inventor: Terry Glenn Young
  • Publication number: 20130306333
    Abstract: A differential control valve and method of operation as a residential dry pipe fluid control valve which provides for a high liquid to gas trip ratio. The valve includes a housing having an interior surface defining an internal chamber with a central axis. The valve further includes a first port; a second port and a third port, each in communication with the internal chamber. A first valve seat is disposed along the interior surface of the housing circumscribed about the central axis and a second valve seat is circumscribed about the first valve seat. A sealing member defines a sealed position and an open position with respect to the valve seats. A spring member biases the seal member toward the open position and is disposed between the sealing member and the interior of the housing.
    Type: Application
    Filed: February 16, 2012
    Publication date: November 21, 2013
    Inventors: Yoram Ringer, James E. Golinveaux
  • Publication number: 20130291953
    Abstract: A pressure regulator (500) is provided. The pressure regulator (500) comprises a housing (503), a fluid inlet (508) to receive a pressurized fluid at an inlet pressure, and a fluid outlet (510) to output the pressurized fluid at a regulated pressure. The pressure regulator (500) further includes a regulating piston (504) movable within the housing (503) to provide fluid communication between the fluid inlet (508) and the fluid outlet (510). The regulating piston (504) includes a first end (505) comprising a first cross-sectional width (D,) in fluid communication with the fluid inlet (508) and a second end (509) comprising a second cross-sectional width (D2) in fluid communication with the fluid outlet (510). The first and second cross-sectional widths (D15 D2) are sized such that the regulated pressure at the fluid outlet (510) is correlated to the inlet pressure at the fluid inlet (508).
    Type: Application
    Filed: February 7, 2012
    Publication date: November 7, 2013
    Applicant: Norgren Limited
    Inventors: Jacek Tarczewski, Richard Edwards, Simon Gass, Vishal Sharma
  • Publication number: 20130283763
    Abstract: A pressure regulating valve assembly includes a pressure regulating valve sleeve and a pressure regulating valve spool. The pressure regulating valve sleeve includes a first window set and a second window set. The pressure regulating valve spool includes a first cylindrical portion, a second cylindrical portion, and a third cylindrical portion formed between the first and second cylindrical portions. The pressure regulating valve spool also includes an angled bucket formed on the first cylindrical portion having a high gain portion of a first width, a low gain portion of a second width, and a ratio of the first width to the second width between 1.44 and 1.47. The pressure regulating valve spool further includes an angled outlet surface. The angled bucket is configured to align with the first window set and the angled outlet surface is configured to align with the second window set.
    Type: Application
    Filed: April 26, 2012
    Publication date: October 31, 2013
    Inventors: David J. Podgorski, Aaron Rickis
  • Publication number: 20130280113
    Abstract: The compressor comprises a valve plate, to be affixed to a compressor block, and a suction valve (V) formed by a spacer body, having a median opening and a flexible vane, which has a fixing end portion provided with a contour, symmetrical or asymmetrical, in relation to a longitudinal axis (X) of the flexible vane and which presents peripheral edge portions to be seated against respective inner edge portions of the median opening for restricting coplanar, linear and angular displacements of the flexible vane in relation to the spacer body upon seating the flexible vane against the valve plate, in the interior of the median opening.
    Type: Application
    Filed: November 18, 2011
    Publication date: October 24, 2013
    Applicant: WHIRLPOOL S.A.
    Inventors: Roque Tadeu Miranda, Guilherme Alan Kruger
  • Publication number: 20130248006
    Abstract: A pressure reducing valve including a balanced valve cartridge. The balanced valve cartridge has a retainer including a central bore. A valve seat and a valve plug are disposed within the central bore and cooperate to open and close the valve. A cap closes one end of the central bore, the cap including a blind bore for receiving a portion of the valve plug. Downstream fluid pressure is transmitted into the blind bore through a hollow portion of the valve plug, thus balancing the valve plug within the retainer.
    Type: Application
    Filed: May 10, 2013
    Publication date: September 26, 2013
    Inventor: Jason D. Clifford
  • Publication number: 20130240051
    Abstract: A valve assembly, including a seat and a flapper complementarily formed with respect to the seat for creating a seal at an interface therebetween. At least one shim is operatively disposed in the valve assembly for altering a position of the flapper relative to the seat in at least one direction for aligning the flapper and the seat at the interface. A method of aligning the flapper and seat of a valve assembly is also included.
    Type: Application
    Filed: March 19, 2012
    Publication date: September 19, 2013
    Inventors: Wade A. Miller, Robert J. Dyer, Michael L. Hair, Thomas S. Myerley, Leonard D. Medill, Matthew P. Presley
  • Publication number: 20130233406
    Abstract: Systems and methods for a three chamber compensation network for pressure regulators are disclosed. For example, one described pressure regulator includes: an inlet port; a primary chamber coupled to the inlet port by a main valve; an outlet chamber coupled to the primary chamber by one or more venturi; and a control chamber coupled to one or more of the venturi by one or more sensing holes, the control chamber comprising a movable piston configured to vary the position of the main valve.
    Type: Application
    Filed: March 5, 2013
    Publication date: September 12, 2013
    Inventor: Andy R. Askew
  • Publication number: 20130233407
    Abstract: A relief valve (100) is provided, including a floating piston (120) configured to move reciprocally in a piston chamber (103) in response to fluid pressure, a circumferential seal (124) located on the floating piston (120), a biasing device (130) configured to keep the floating piston (120) within a piston float movement range, wherein the fluid is held when the floating piston (120) is within the piston float movement range and the fluid is exhausted when the floating piston (120) exceeds the piston float movement range, and one or more relief grooves (107) formed in a sidewall (106) of the piston chamber (103). The one or more relief grooves (107) are configured to conduct fluid around the floating piston (120) and the circumferential seal (124) when the floating piston (120) is compressed to a predetermined relief location in the piston chamber (103).
    Type: Application
    Filed: December 7, 2011
    Publication date: September 12, 2013
    Applicant: Norgren Limited
    Inventors: Jacek Tarczewski, Richard Edwards, Jagroop Sahota
  • Patent number: 8523541
    Abstract: The invention relates to a one-piece plastic element having an inlet valve cover and an inlet valve seat element for an inlet valve of a piston pump of a hydraulic brake system of a motor vehicle. The inlet valve is designed as a check valve, and the inlet valve cover and the inlet valve seat element are connected to each other by a designed fracture point. The invention further relates to a piston pump having an inlet valve cover and inlet valve seat element made of a one-piece plastic element. The invention further relates to a method for assembling the inlet valve designed as a check valve.
    Type: Grant
    Filed: October 13, 2008
    Date of Patent: September 3, 2013
    Assignee: Robert Bosch GmbH
    Inventor: Harald Hermann
  • Patent number: 8459288
    Abstract: A regulator for gas having a diaphragm rod held at the center of a diaphragm of which rim is sandwiched between a body and a cover via diaphragm retainers, and a valve element capable of seating itself at a valve seat fixedly placed in the body with a valve hole opening at the center provided in an intermediate portion of a valve shaft having its one end detachably coupled to the diaphragm rod and its other end slidably fitted in a guide opening provided on the body side, wherein the body (34) is equipped with a valve action unit (120) formed by assembling in advance a valve seat member (100) having a valve hole (111) and the valve seat (112) provided thereon, a guide member (106) having a guide opening (105) and pressed into the valve seat member (100), and a valve shaft (114) having a valve element (113) provided thereon in a state of having one end of the valve shaft (114) projected from the valve hole (111) and the other end of the valve shaft (114) slidably fitted into the guide opening (105) It is there
    Type: Grant
    Filed: April 1, 2011
    Date of Patent: June 11, 2013
    Assignee: Keihin Corporation
    Inventor: Kazuki Ishikawa
  • Publication number: 20130133755
    Abstract: A slam-shut device includes an inlet, an outlet, a valve seat, and defines a flow path. A valve disc is shiftable between an open position and a closed position, and reset pin responsive to an actuator is coupled to the valve disc and shifts between an untripped position and a tripped position. A cylindrical cage is mounted within the valve body and is disposed in the flow path, and includes a plurality of flow apertures slidably receives the valve disc. The cage includes a first end adjacent the valve seat and a second end away from the valve seat, and the cage forms a cylindrical recess disposed adjacent the second end of the cage and spaced from the flow apertures.
    Type: Application
    Filed: November 29, 2012
    Publication date: May 30, 2013
    Applicant: Fisher Controls International LLC
    Inventor: Fisher Controls International LLC
  • Publication number: 20130118612
    Abstract: A clack valve assembly comprising: a valve seat comprising an opening; a bearing comprising a recess with a base, a mouth, and a pair of side walls between the base and the mouth; a lid comprising a lid plate and a shaft, the shaft being received in the recess of the bearing; and a shaft retaining member which closes the mouth of the recess in the bearing, thus retaining the shaft within the recess. The shaft and the lid plate are integrally formed elements of a single part. The shaft can rotate within the recess to enable the lid to rotate from a closed position in which the lid engages the valve seat and covers the opening, to an open position in which the lid lifts away from the valve seat enabling fluid to flow through the opening in the valve seat.
    Type: Application
    Filed: November 2, 2012
    Publication date: May 16, 2013
  • Publication number: 20130037125
    Abstract: A pressure relief valve assembly includes a body having a passage extending therethrough. The body includes an upstream end adapted to be connected to a source of fluid pressure, an intermediate portion, and a downstream end having a downstream exit. A rupture disk is mounted in the passageway and blocks the fluid pressure of the source from the downstream end. In operation, the rupture disk configured to rupture above a predetermined differential fluid pressure. A catcher is disposed in the passage downstream of the rupture disk. The catcher generally includes a disk portion with at least one opening sized to prevent passage of the rupture disk through the catcher in response to a rupture disk failure while simultaneously allowing fluid flow through the catcher to the downstream exit.
    Type: Application
    Filed: August 10, 2012
    Publication date: February 14, 2013
    Applicant: S.P.M. Flow Control, Inc.
    Inventors: Philip Drake, Brian Witkowski
  • 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
  • Publication number: 20120285551
    Abstract: In accordance with one embodiment of the present invention, a seal for a surge relief valve includes a) a valve housing having a flow inlet and a flow outlet; b) an annular retainer for coupling a plug to an interior of the valve housing, the retainer having a first end oriented toward the flow inlet and a second end remote therefrom; c) the plug having a first end oriented toward the flow inlet and a second end remote therefrom, the plug having a mating junction for coupling with the second end of the retainer, the plug having a first countersink, a second countersink, a first lip defined between the first and second countersinks and a second lip adjacent the second countersink; and d) an annular plug seal having a first end oriented toward the flow inlet and a second end remote from the first end for mating with the second countersink and a lip that abuts the second end of the retainer.
    Type: Application
    Filed: May 11, 2011
    Publication date: November 15, 2012
    Applicant: SPX Corporation
    Inventors: Mark LEWANDOWSKI, Raj Shah, Phi Nguyen
  • Publication number: 20120261013
    Abstract: A microfluidic system includes a bubble valve for regulating fluid flow through a microchannel. The bubble valve includes a fluid meniscus interfacing the microchannel interior and an actuator for deflecting the membrane into the microchannel interior to regulate fluid flow. The actuator generates a gas bubble in a liquid in the microchannel when a sufficient pressure is generated on the membrane.
    Type: Application
    Filed: June 19, 2012
    Publication date: October 18, 2012
    Applicant: CYTONOME/ST, LLC
    Inventors: John Richard Gilbert, Sebastian Böhm, Manish Deshpande
  • Patent number: 8251082
    Abstract: A dual valve assembly for limiting flow into a toilet tank comprises a fill valve, such as a float valve or ball cock valve, and a piston valve positioned between a water supply line and the fill valve. The piston valve operates independently of the fill valve, and is designed to shut off water flow after an approximate flow volume or time. The dual valve assembly may be provided in a single housing replacement part. The dual valve assembly may be provided as an adapter kit comprising a housing and piston valve which is installed in a toilet tank to accept a fill valve.
    Type: Grant
    Filed: July 7, 2008
    Date of Patent: August 28, 2012
    Inventors: Rodger Lynn Ross, Donna H Ross
  • Patent number: 8141572
    Abstract: An isolation valve system includes a main body (32), an actuator body (34) and a sealing membrane (307) arranged at a high pressure portion (36) of the isolation valve system. The sealing membrane mechanically attaches the actuator body to the main body. The sealing membrane further seals the high pressure portion from a low pressure portion (38). A burst plug (315) is arranged against the main body and supports the actuator body. An activation arrangement (50) is arranged for allowing an at least partial displacement of the burst plug, typically causing a phase transition. The sealing membrane is dimensioned to break when the actuator body is moved due to the displacement of the burst plug. The isolation valve system includes preferably a stack (30) of substrates (301-304) being bonded together. The substrates have micromechanical structures, which form at least the actuator body and the sealing membrane.
    Type: Grant
    Filed: October 4, 2006
    Date of Patent: March 27, 2012
    Assignee: NanoSpace AB
    Inventors: Lars Stenmark, Pelle Rangsten
  • Patent number: 8141573
    Abstract: Micro check valves having a free-floating member for controlling flow of fluid in microfluidic and biomedical applications and methods of fabrication. A micro check valve includes a valve seat, a valve cap that contacts the valve seat and an untethered floating member that can move between the valve seat and the valve cap. Certain micro check valves have zero cracking pressure and no reverse leakage. Certain other valves may be configured to permit flow of fluid within a pressure range. The floating member can be solid or define an orifice, and the valve seat can have one or two levels. Valves can be configured to allow fluid to flow when the floating member is pushed by fluid against the valve cap or against the valve seat. The valve seat may be silicon or another material that is compatible with micromachining processes, and the valve cap and the floating member may be a polymer such as Parylene.
    Type: Grant
    Filed: September 23, 2009
    Date of Patent: March 27, 2012
    Assignee: California Institute of Technology
    Inventors: Yu-Chong Tai, Po-Jui Chen, Damien C. Rodger, Mark S. Humayun
  • Patent number: 7950408
    Abstract: A pressure relief device is disclosed that is designed to open in response to a pre-determined pressure differential. The pressure relief device includes a panel member, and at least one release mechanism. The release mechanism has a first end, a failure portion configured to fail upon experiencing a predetermined load, and a second end. The at least one release mechanism is configured to hold the panel member against a frame prior to experiencing the predetermined pressure differential.
    Type: Grant
    Filed: December 4, 2006
    Date of Patent: May 31, 2011
    Assignee: BS&B Safety Systems Limited
    Inventors: Steven Farwell, Niall Smith, Geof Brazier
  • Patent number: 7942160
    Abstract: The present invention relates to microfluidic systems, including valves and pumps for microfluidic systems. The valves of the invention include check valves such as diaphragm valves and flap valves. Other valves of the invention include one-use valves. The pumps of the present invention include a reservoir and at least two check valves. The reservoir may be of variable volume. The present invention also relates to a flexible microfluidic system. The present invention additionally relates to a method of making microfluidic systems including those of the present invention. The method includes forming a microfluidic system on a master, connecting a support to the microfluidic system and removing the microfluidic system from the master. The support may remain connected to the microfluidic system or the microfluidic system may be transferred to another substrate. The present invention further relates to a method of manipulating a flow of a fluid in a microfluidic system.
    Type: Grant
    Filed: June 14, 2004
    Date of Patent: May 17, 2011
    Assignee: President and Fellows of Harvard College
    Inventors: Noo Li Jeon, Daniel T. Chiu, Christopher J. Wargo, Insung S. Choi, Hongkai Wu, Janelle R. Anderson, George M. Whitesides, J. Cooper McDonald, Steven J. Metallo, Howard A. Stone
  • Patent number: 7896021
    Abstract: A system for quickly removing and installing check valve parts without disturbing system piping attached to a pump. The system includes a first adapter attached to the outlet of the pump head. The first adapter includes a valve seat and a housing with a side wall having external threads. A second adapter includes a hollow body with a space for a check valve. The body has an opening in the side wall for inserting the check valve. The second adapter fits over the first adapter and the adapters are attached by means of a collar. Tightening the collar onto the threads on the first adapter causes the check valve to be held firmly between the valve seat and the top wall of the second adapter.
    Type: Grant
    Filed: March 27, 2008
    Date of Patent: March 1, 2011
    Assignee: Pulsafeeder, Inc.
    Inventor: Cordell E. Claude
  • Publication number: 20100326533
    Abstract: A multistage, pilot-operated pressure regulator for pressure adjustment and/or back pressure relief and/or differential pressure or flow control applications comprises a diaphragm and a plurality of plates, including a throttle plate and at least one flow control plate. In at least one embodiment, the throttle plate includes a sloped upper surface for contacting the diaphragm, and a plurality of apertures residing within a plurality of concentric rows. In addition, in at least one embodiment, at least one flow control plate is positioned downstream of the throttle plate, the at least one flow control plate including a plurality of apertures residing within a plurality of concentric rows. A method of controlling the flow of fluid in a conduit is also provided.
    Type: Application
    Filed: June 26, 2009
    Publication date: December 30, 2010
    Inventors: Richard J. Mooney, Pamela Mooney
  • Publication number: 20100313971
    Abstract: A pressure regulator comprising a housing having an inlet port and an outlet port, a linearly sliding member for selectively covering a section of a passage between the inlet port and the outlet port, a diaphragm interconnected to the linearly sliding member to slide the linearly sliding member in reaction to pressure levels in the housing, and a valve seat located in the passage between the inlet port and the outlet port. The linearly sliding member includes a sealing disc for preventing fluid flow past the valve seat. The valve seat is located closer to the outlet port than to the inlet port.
    Type: Application
    Filed: April 1, 2010
    Publication date: December 16, 2010
    Inventors: J. Reese Moore, Robert Clifton Jones, JR., Brian Keith Yutzy, Thomas V. Lozito, Charles M. Olds, Angelica Wright
  • 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
  • Publication number: 20100025401
    Abstract: A relief valve including a generally cylindrical housing with first and second openings. The first opening is defined by a flange having an internal shoulder located adjacent the first opening. A pin is provided in the housing and has a first end and a second end opposite of the first end. A spring is positioned about the pin. A seal is located at the second end of the pin and adjacent the second opening of the housing. A clip is located at the first end of the pin and engages the internal shoulder of the flange to compress the spring between the clip and the seal.
    Type: Application
    Filed: August 11, 2009
    Publication date: February 4, 2010
    Inventors: Thomas M. Jagemann, Peter John Mayer, Michael Thomas Jagemann
  • Publication number: 20090183779
    Abstract: A mechanism to check fluid flow from a tube or spigot when it is disconnected from a downstream conduit is provided. The mechanism includes a duckbill check valve that has its bills pointed in the upstream direction. To keep the bills apart for the fluid flow to continue, the downstream conduit has to be inserted against the underside of the bills. Once the downstream conduit separates from the valve, the valve closes itself.
    Type: Application
    Filed: April 14, 2006
    Publication date: July 23, 2009
    Inventors: James J. Minard, Mark E. Bush
  • Patent number: 7533689
    Abstract: A poppet mounted concentrically on a barrel for axial travel downstream relative thereto from an open to closed position, the poppet biased by a coil sprint to its open position.
    Type: Grant
    Filed: June 1, 2006
    Date of Patent: May 19, 2009
    Assignee: R.W. Lyall Company, Inc.
    Inventor: Gregory Harlan Goble
  • Publication number: 20090032112
    Abstract: A valve chip may include a substrate having first and second faces and openings between the first and second faces, and a plurality of flexible valve flaps on one of the faces of the substrate with each flexible valve flap being associated with at least one of the openings. The valve chip may be packaged by forming a frame having an opening therein, and securing the valve chip in the opening of the frame. More particularly, the valve chip may be secured in the opening so that central portions of the first and second faces of the substrate are exposed through the opening in the frame and so that a fluid seal is provided between the frame and edges of the substrate. Related valves, valve assemblies, and methods are also discussed.
    Type: Application
    Filed: October 7, 2008
    Publication date: February 5, 2009
    Inventors: William O. Teach, James C. Laski, Paul W. Gibson, Donald C. Harris, Kevin R. Douglas
  • Patent number: 7448102
    Abstract: A method for supplying liquid mixtures on a mix-on-demand basis for consumptive use, and for maintaining the composition of such mixture on a highly accurate and stable basis. For wet-on-wet processing of fabrics, the processing solution is supplied at start-up on a mix-on-demand basis to precise specifications and is maintained at such precise specifications throughout fabric processing, which involves continuous additions of water by the incoming fabric and removal of solution by the exiting fabric. Recirculation of the solution at a high rate, together with rapid and repetitive measurements of the composition of the recirculating solution enables the solution to be precisely monitored and maintained. Periodic small additions of chemical are injected as necessary to maintain highly stable, accurately controlled process conditions. Extraordinary economies, both direct and indirect, can be realized with the new system.
    Type: Grant
    Filed: May 16, 2006
    Date of Patent: November 11, 2008
    Assignee: Tubular Textile Machinery, Inc.
    Inventors: William D. Milligan, E. Scott Allison, Eric A. Best