Resilient Material Valve Patents (Class 137/843)
  • Patent number: 10458559
    Abstract: An inlet check valve for controlling fluid from a supply into a variable cam timing phaser includes a double flapper check valve assembly with an open position and a closed position, which includes a housing having a body forming at least two stoppers, a flapper valve comprising at least two flexible flaps received within the housing and aligned with the at least two stoppers, and a valve seat received within the housing, the valve seat defining openings aligned with the at least two flexible flaps, axially opposite the two stoppers. In another embodiment, the stoppers are on a stopper piece separate from the housing.
    Type: Grant
    Filed: October 3, 2017
    Date of Patent: October 29, 2019
    Assignee: BorgWarner, inc.
    Inventors: Augusto Fanzani, Maino Bruno
  • Patent number: 10369343
    Abstract: An apparatus includes a fluid path, a coupling, and a nozzle. The fluid path is to carry a fluid including one or more microparticles. The coupling is located in the fluid path. The nozzle is located in the fluid path to move the fluid through a stagnant region located near the coupling.
    Type: Grant
    Filed: June 30, 2006
    Date of Patent: August 6, 2019
    Assignee: Biocompatibles UK Limited
    Inventors: Thomas J. Simpson, Jim Hagerman
  • Patent number: 10258786
    Abstract: A collapsible valve for use in a needleless access connector to reduce the priming volume of the needleless access connector. A needleless access connector with a small priming volume. A method of connecting a first medical device to a second medical device with a needleless access connector with a small priming volume.
    Type: Grant
    Filed: June 4, 2015
    Date of Patent: April 16, 2019
    Assignee: CareFusion 303, Inc.
    Inventors: Tim L. Truitt, Alex T. Mazza
  • Patent number: 10190549
    Abstract: Check valves, Venturi devices and engines having such check valves, define an internal cavity having a first port and a second port, a first seat and a second seat, and a translatable seal disk. The check valves have an outlet conduit extending from the second port and/or the first seat has a first annular seal bead and a second annular seal bead disposed radially inward of the first annular seal bead with a plurality of ribs extending between the first annular seal bead and the second annular seal bead within the fluid flow path of the first port. The outlet conduit defines an outlet passageway having a restrictor profile that is circular in a transverse profile, and the ribs decrease the flow area of the fluid flow path of the first port by about 10% to about 60%.
    Type: Grant
    Filed: January 24, 2018
    Date of Patent: January 29, 2019
    Assignee: Dayco IP Holdings, LLC
    Inventors: David E. Fletcher, Brian M. Graichen, Matthew C. Gilmer, Andrew D. Niedert, James H. Miller, Keith Hampton
  • Patent number: 10160585
    Abstract: An inflatable structure may be formed from a single piece of flexible film. The inflatable structure may include quilting seals which divide the inflatable chamber. The inflatable structure may include a one-way valve including an internal valve opening, a channel, and an external valve opening. A locator aperture positioned in the channel may be surrounded by a valve position-retention seal. A corresponding inflation device fills the inflatable structure with air and may do so without requiring heat sealing or insertion into the one-way valve. The inflation device may include a mechanical registration device configured to engage the locator aperture and position the one-way valve at a desired position with respect to an outlet of a source of pressurized air. The inflation device may detect when the inflatable structure is filled with a desired amount of air and automatically shut off the source of pressurized air.
    Type: Grant
    Filed: July 20, 2015
    Date of Patent: December 25, 2018
    Assignee: Sealed Air Corporation (US)
    Inventors: Shawn Michael Frayne, Paul Chudy
  • Patent number: 10107240
    Abstract: Check valves, Venturi devices and engines that include the check valves are disclosed. The check valves define an internal cavity having a first port and a second port, a first seat and a second seat, and a translatable seal disk. The first seat is proximate the first port and has a first annular seal bead, and a second annular seal bead radially inward from the first annular seal bead. The seal disk has a first sealing portion seatable against the first annular seal bead and a second sealing portion seatable against the second annular seal bead (both of a first thickness), an intermediate portion between the first and second sealing portions of a second thickness, and a lip portion defining the outer periphery of the seal disk of a third thickness. The second thickness is greater than the first thickness, and the third thickness is less than the first thickness.
    Type: Grant
    Filed: June 14, 2016
    Date of Patent: October 23, 2018
    Assignee: Dayco IP Holdings, LLC
    Inventors: David E. Fletcher, Brian M. Graichen, Matthew C. Gilmer, Andrew D. Niedert, James H. Miller, Keith Hampton
  • Patent number: 10024458
    Abstract: Bypass check valves, suitable for bypassing a Venturi gap, are disclosed and include a housing defining an internal cavity having a first seat and a second seat, and a seal member within the internal cavity translatable between a closed position against the first seat and an open position against the second seat. The second seat defines a support structure having a middle region of a predetermine height and a downstream side having a height that is shorter than the predetermined height of the middle region. The seal member is seatable against the second seat with a downstream portion thereof a further distance from the first seat than an upstream portion thereof.
    Type: Grant
    Filed: April 3, 2015
    Date of Patent: July 17, 2018
    Assignee: Dayco IP Holdings, LLC
    Inventors: Andrew D. Niedert, Brian M. Graichen
  • Patent number: 9757753
    Abstract: [Object] To provide a push-type dispenser that is simple in structure and yet capable of surely preventing liquid leakage even when it topples over.
    Type: Grant
    Filed: May 12, 2014
    Date of Patent: September 12, 2017
    Inventor: Tetsuya Tada
  • Patent number: 9585999
    Abstract: A flow system for medical lines includes a flow component having a main duct and at least one lateral tubular fitting with a female luer cone communicating with the main duct) through a valve. The valve includes a transverse diaphragm normally kept in fluid-tight contact against an annular valve seat of the lateral tubular fitting, which can be moved away from this into an opening position following upon insertion of a male luer-cone introducer of fluid into the lateral tubular fitting. The diaphragm is prearranged for being pushed into the opening position directly by the introducer, and the lateral tubular fitting is configured to couple in a fluid-tight way with the introducer before the latter comes into contact of thrust with the diaphragm.
    Type: Grant
    Filed: June 11, 2013
    Date of Patent: March 7, 2017
    Assignee: INDUSTRIE BORLA S.P.A.
    Inventor: Gianni Guala
  • Patent number: 9394809
    Abstract: A hydraulic valve for a cam phaser including a valve housing with a longitudinal axis and a valve piston that is axially moveable along the longitudinal axis, wherein the valve piston opens and closes a first operating connection of the valve housing and a second operating connection of the valve housing, wherein the first operating connection and the second operating connection are axially offset from one another; and a supply connection of the valve housing which is used for supplying the hydraulic valve with a hydraulic fluid fed by a feed device, wherein the hydraulic valve is configured to be flowed through by the hydraulic fluid on different paths controlled by a flow permeable channel system of the valve piston, and wherein a check valve opening and closing an inflow channel is arranged in the hydraulic valve in the inflow channel of the valve housing.
    Type: Grant
    Filed: February 15, 2015
    Date of Patent: July 19, 2016
    Assignee: Hilite Germany GmbH
    Inventors: Erik Gruber, Michael Oppel, Juergen Goll
  • Patent number: 9352086
    Abstract: A one-way valve for medical infusion lines includes a first tubular connector and a second tubular connector, which define, respectively, an upstream passage and a downstream passage, which are coaxial and set transversely between which is a diaphragm made of elastically deformable material co-operating in a fluid-tight way with an annular seat to keep the valve normally closed. A filter, integrated in the valve, is axially clamped and blocked between the first tubular connector and the diaphragm.
    Type: Grant
    Filed: June 25, 2013
    Date of Patent: May 31, 2016
    Assignee: INDUSTRIE BORLA S.P.A.
    Inventor: Gianni Guala
  • Patent number: 9341182
    Abstract: An electromagnetic pump includes a coil configured to conduct an alternating current, a cylinder, and a piston assembly. The piston includes a cavity configured to receive fluid and an aperture defined in a first end thereof The piston is arranged within the cylinder to define an interface between the piston and the cylinder, and the piston is configured to move linearly between a first position and a second position within the cylinder. The piston is positioned in the electromagnetic pump such that it is within a magnetic field which is generated by the coil when the coil conducts a current.
    Type: Grant
    Filed: March 14, 2013
    Date of Patent: May 17, 2016
    Assignee: GOTEC SA
    Inventor: Pierre Mayoraz
  • Patent number: 9046182
    Abstract: A check valve includes connected first and second bodies respectively disposed on upstream and downstream sides. A valve plug is disposed displaceably in a communication chamber formed in the interior of the first body. A skirt urges a main body portion of the valve plug in a direction for seating the main body portion on a valve seat surface, and is provided on the valve plug such that the main body portion is seated on the valve seat surface by an elastic force of the skirt. By supplying a pressure fluid to the first body, the valve plug is displaced in opposition to the elastic force of the skirt, whereby the interior of the first body and the interior of the second body are placed in communication and the pressure fluid is allowed to flow therethrough.
    Type: Grant
    Filed: November 2, 2012
    Date of Patent: June 2, 2015
    Inventors: Yoshihiro Fukano, Tadashi Uchino
  • Patent number: 8997788
    Abstract: A metering end cap provided to the neck of a flexible container containing a fluid and intended to transfer, at will, an amount of fluid from an upstream space towards a downstream space, this end cap including a chamber in which is disposed a movable valve normally biased towards a rest position and operationally moved towards an end position. The valve isolates the upstream space and the downstream space from each other in its end position and only in this position, and the outlet of the chamber communicates with the upstream space for any position of the valve other that its end position.
    Type: Grant
    Filed: November 4, 2009
    Date of Patent: April 7, 2015
    Assignee: Flexidose SARL
    Inventor: Patrick Wozna
  • Publication number: 20150090357
    Abstract: A check valve is provided. The check valve includes a position limiting member, a back-flow preventing member and a lid body. The back-flow preventing member is disposed between the position limiting member and the lid body, and a blocking portion of the back-flow preventing member is flexible. When the blocking portion is impacted by an external water source, a gap will be formed between an external peripheral verge of the blocking portion and a stepped portion of the position limiting member to allow the water source to flow through the position limiting member. When the blocking portion is impacted by a reverse water source, the external peripheral verge of the blocking portion is abutted against the stepped portion to unallow the water source to flow through the position limiting member.
    Type: Application
    Filed: September 27, 2013
    Publication date: April 2, 2015
    Inventor: Tsai-Chen YANG
  • Patent number: 8991430
    Abstract: A medical valve having a valve inside housing and a valve core. The valve core is installed within the housing. The housing is preferably an integrally-formed hollow cylindrical structure. An annular protrusion may be arranged on the outer surface of the housing and a seal ring may be arranged in the center of the inner wall of the housing. The valve core can be made of an elastic material as an integrally-formed cylindrical structure. A lock ring matched with the seal ring of the housing may be arranged on the outer surface of the valve core, and the lock ring can be integrally formed with the valve core. The medical valve inside disclosed by the invention is widely applied to the medical fields such as cushion mask, trachea cannula and laryngeal mask, No metal member is preferably employed, so with magnetic resonance imaging examination without causing interference.
    Type: Grant
    Filed: June 15, 2012
    Date of Patent: March 31, 2015
    Assignee: Shenzhen Yuantai Medical Equipment Co., Ltd.
    Inventor: Danyu Huang
  • Patent number: 8985142
    Abstract: The invention relates to a flow volume regulator (1) having at least one throttle body (2) which is composed of elastically deformable material and which is arranged in the throughflow duct (3) of a regulator housing (4) and which delimits a control gap (5) between itself and a regulating profiling provided on an inner circumferential and/or outer circumferential duct wall, the clear throughflow cross section of which control gap (5) can be varied as a result of the throttle body (2) which can be deformed under the pressure of the medium flowing through, with the regulating housing (4) bearing on its outer circumference a clamping edge region for clamping the flow volume regulator (1) between two line sections or line components which are connected to one another.
    Type: Grant
    Filed: December 10, 2009
    Date of Patent: March 24, 2015
    Assignee: Neoperl GmbH
    Inventor: Fabian Wildfang
  • Patent number: 8979117
    Abstract: The restraining function of support structure airbags in particular and mechanical airbags should be able to be specifically guaranteed in a simple manner. To this end, an air cushion for an airbag of a motor vehicle is provided, having a sleeve with at least one opening and a closure element arranged on the at least one opening in order to at least partially prevent air from flowing from a first direction, Furthermore, the closure element is flexible and has a channel-shaped design at least upon the flow of air from a second direction opposite the first direction. The closure element thus has the effect of a check valve.
    Type: Grant
    Filed: October 30, 2009
    Date of Patent: March 17, 2015
    Assignee: Daimler AG
    Inventors: Christian Burczyk, Andreas Hirth, Lutz Quarg, Friedrich Reiter, Clark Ruedebusch
  • Publication number: 20150034195
    Abstract: The valve unit includes: a body having a charging passage; a supply-side joint that connects a supply pipe; and a check valve that is disposed in the gas passage, and that inhibits gas from being discharged from the gas tank to the outside of the body. The check valve includes a check valve seat, a check valve element that comes into contact with or moves away from the check valve seat, and a positioning member that fixes the position of the check valve seat in the charging passage. The body has a fitting hole which is communicated with the charging passage and in which the supply-side joint and the positioning member are fitted. The positioning member is fitted in a second fitting hole so as to fix the position of the check valve seat even when the supply-side joint has not been fitted in a first fitting hole.
    Type: Application
    Filed: July 18, 2014
    Publication date: February 5, 2015
    Inventors: Toshihiko SHIMA, Akio NAKAMURA, Kenji TAKAHASHI, Shusuke INAGI, Kentaro HIOKI
  • Patent number: 8939165
    Abstract: A microvalve, in particular for a micropump, is described, which includes a valve member which is adjustable between an open position and a closed position, in contact with a valve seat in its closed position. The valve seat is made of a polymer material. A micropump and a manufacturing method are also described.
    Type: Grant
    Filed: September 7, 2009
    Date of Patent: January 27, 2015
    Assignee: Robert Bosch GmbH
    Inventors: Ralf Reichenbach, Peter Rothacher
  • Publication number: 20150020906
    Abstract: A non-spill valve for the neck of a liquid container. The invention also relates to a non-spill valve for the nipple of a feeding bottle, to a teat which is provided with such a nipple and to a feeding bottle which has such a teat. The valve has a tube which is open at one end and upstands from a support, which is complementary with interior element so that it forms a partition and permits the passage of liquid from an aperture in the support only into the tube interior, wherein the other end of the tube is closed except for an incision which separates the closed end from an adjoining side wall portion. The incision defines a flap that can permit liquid to reach from the tube interior to the mouth of the neck or spout or nipple.
    Type: Application
    Filed: November 28, 2012
    Publication date: January 22, 2015
    Applicant: BB IPR Limited
    Inventor: Stephen Paul Tollman
  • Patent number: 8910663
    Abstract: A uni-directional valve for an air path of a ventilation device. A flexible valve element is held biased in a housing of the uni-directional valve to close at least one air passage located in a sealing section and with a sealing portion to at least partially open the air passage if the valve element is impinged by a sufficient air pressure against the bias. The valve element is designed as cylinder and the sealing portion is located on the lateral surface of the cylinder. The sealing portion is located opposite to a support portion located on the lateral surface of the cylinder. The support portion interacts with a support section of the housing. The distance between the support section and the sealing section of the housing is smaller than the distance between the support portion and the sealing portion in the unbiased state of the valve element.
    Type: Grant
    Filed: September 22, 2011
    Date of Patent: December 16, 2014
    Assignee: Moldex-Metric, Inc.
    Inventors: Frank Kern, Torben Skov
  • Publication number: 20140326335
    Abstract: A pressure controlled valve having a housing with a first pressure chamber for communication to a pneumatically pressurized control source. The housing has an inlet for communication with a pneumatic supply source and outlet selectively in fluid flow with the inlet. A movable valve selectively opens and closes with respect to a valve seat for selectively opening a pathway from the inlet to the outlet and closing the pathway between the inlet and outlet. The pressure chamber may be sealingly and fluidly separated from the pathway between the inlet and the outlet. The pressure chamber provides a closing biasing force on the movable valve and a resilient spring mounted in the housing provides an opening biasing force on the movable valve.
    Type: Application
    Filed: December 14, 2011
    Publication date: November 6, 2014
    Applicant: Numatics, Incorporated
    Inventors: Terry John Hessling, Scott Andrew Menko
  • Patent number: 8863781
    Abstract: A valve apparatus and methods associated thereof are provided. The valve apparatus includes a valve housing structure. A first valve portion is connected to the valve housing structure, wherein the first valve portion has a sealing edge. A second valve portion is positioned at least partially within the valve housing structure. A constrictable membrane has a pressurizable interior compartment, wherein the constrictable membrane supported by the second valve portion and positioned proximate to the first valve portion, wherein at least a portion of the constrictable membrane is movable to engageable with the sealing edge of the first valve portion.
    Type: Grant
    Filed: March 9, 2012
    Date of Patent: October 21, 2014
    Assignee: Symmetry Medical Manufacturing, Inc.
    Inventors: Jon B. Taylor, James J. Kennedy, III, Paul LaRue, George P. Hannafin
  • Publication number: 20140299212
    Abstract: Non-return valve, in particular for medical purposes, consisting of a first hose connection housing and a second hose connection housing and a membrane disk which is made from flexible material, is arranged between the two hose connection housings, and can be raised up from an annular valve seat which results in an inlet space which is connected to an inlet passage. A medium-permeable formation which faces the membrane disk is arranged on the inlet side into the inlet space, which formation supports the membrane disk against overextension in the case of high return pressures.
    Type: Application
    Filed: February 24, 2011
    Publication date: October 9, 2014
    Applicant: Illinois Tool Works Inc
    Inventors: Michael Carmody Colm, Brendan Casey, Gerard Gabriel Henn
  • Publication number: 20140271245
    Abstract: Disclosed is a one-way valve wherein an affixed flexible film device, a downstream edge control means, a channel surface and the motive force of a controlled directional pressurized fluid flow automatically permit forward fluid flow yet check reverse fluid backflow.
    Type: Application
    Filed: March 18, 2013
    Publication date: September 18, 2014
    Inventor: William Anthony Harper
  • Publication number: 20140251939
    Abstract: A nipple assembly is removably attachable to a baby bottle via a retainer ring and comprises a nipple having a flow aperture through one end, and a nipple flange structured to support the nipple. A flow control valve assembly is mounted to the nipple flange and extends inwardly from an inner surface of the nipple flange, the flow control valve assembly is structured to allow pressures to equilibrate between the inside and outside of the baby bottle, without allowing fluid to leak therethrough. A training cup spout assembly is removably attachable to a cup and comprises a spout having a spout channel extending therethrough. The spout channel has a dual valve assembly mounted therein to permit flow for drinking, as well as to prevent leakage of fluid from the cup. A flow control valve assembly is mounted to the training cup spout assembly to permit pressure equilibration.
    Type: Application
    Filed: May 27, 2014
    Publication date: September 11, 2014
    Inventor: Pruck Boonprasop
  • Patent number: 8820590
    Abstract: A deformable small packaging structure for free-flowing products has a valve-like closure (10) produced by a two-component injection molding process and including a dimensionally stable carrier element (11) and an outer jacket (12) which envelopes the carrier element (11) at least in part and has a flexible squirt-nozzle (16) with slotted openings. The outer jacket (12), in relation to the withdrawn squirt-nozzle (16), has a meander-shaped configuration adjacent to the squirt-nozzle (16). The squirt-nozzle (16), in relation to the withdrawn state, is configured as a pot-shaped recess. The outer jacket (12) has an inner annular flange (17) which engages in a recess of the carrier element (11) and is firmly connected therewith. Further, the outer jacket (12) has adjacent to the inner annular flange (17) a circumferential web (18) which engages in a groove of the carrier element (11) and is also firmly connected therewith.
    Type: Grant
    Filed: October 5, 2011
    Date of Patent: September 2, 2014
    Assignee: BERICAP Holding GmbH
    Inventor: Rainer Krallmann
  • Patent number: 8807169
    Abstract: The disclosure relates to a micropump having a first body portion including an inlet aperture and a second body portion including an outlet aperture. The first and second body portions may each have a mating surface disposed about a membrane-receiving inner surface in sealed relation with one another. A substantially dome shaped membrane having a reinforcement annulus located around an outer edge may be received by the first body portion membrane-receiving inner surface. A portion of the membrane may be moveable between a closed position in sealable communication with the inlet aperture and an open position spaced apart from the inlet aperture, and biased in a closed position. Operation of the micropump may cause fluid to flow through the first body inlet aperture, move the membrane to the open position, and flow around the edge of the membrane through the second body outlet.
    Type: Grant
    Filed: June 30, 2011
    Date of Patent: August 19, 2014
    Assignee: Picolife Technologies, LLC
    Inventors: Farid Amirouche, Matthew Cantwell
  • Patent number: 8776831
    Abstract: A check valve (10), including a valve membrane (12), which includes an umbrella-like closing body (14), which in a closed position abuts a housing body (5) in such a way that the closing body prevents the passage of a medium through passage holes (26) provided in the valve body (16), the closing body lifting off the housing body in an open position in order to allow a medium to pass through the passage holes. In the open position and/or closed position the closing element is clamped between the valve body and the housing body at least at one point (31, 32).
    Type: Grant
    Filed: November 23, 2010
    Date of Patent: July 15, 2014
    Assignee: Magna Powertrain Hueckeswagen GmbH
    Inventors: Noriyki Otsuka, Marcel Walder, Marek Raczko, Alexander Freiburg
  • Publication number: 20140158241
    Abstract: This invention relates to a flexible membrane separation valve, comprising a housing (120), the lateral surfaces of which are provided with slits (121), within which housing (120) a flexible membrane (122) with cylindrical symmetry is housed, within which an insert (130) having a body (131) with cylindrical symmetry is in turn housed, the insert (130) comprising a proximal end (132) having a proximal apex (133) spaced along the longitudinal axis of the insert (130) from a base (134) with cylindrical symmetry, through which the proximal end (132) joins to the body (131), the proximal apex (133) being joined to the base (134) through a continuous surface, the valve being characterised in that the proximal end (132) has an axial section such that tangent lines to the proximal apex (133) form an angle containing the longitudinal axis of the insert that is lower than or equal to 90°. The invention further relates to an apparatus for mixing a liquid comprising such a flexible membrane separation valve.
    Type: Application
    Filed: July 19, 2012
    Publication date: June 12, 2014
    Applicant: SEKO S.P.A.
    Inventors: Gabriele Patreangeli, Stefano Livoti
  • Publication number: 20140162048
    Abstract: Multi-layer fabrics and products incorporating the same are described in which the fabrics are configured to provide asymmetric resistance to liquid flow from one side of the fabric to the other. In garments or other products worn by a user, the effect can be utilized to prevent penetration of liquids (e.g., rain droplets) and contact of liquids from the exterior with the user's skin while allowing for extraction of droplets (e.g., sweat) in contact with an inner layer of the fabric out of contact with the skin and accelerating their evaporation. Medical and industrial applications of the fabric are contemplated as well.
    Type: Application
    Filed: July 22, 2013
    Publication date: June 12, 2014
    Inventors: Amir Gat, Aria Vahdani, Morteza Gharib
  • Publication number: 20140150905
    Abstract: A check valve which is positioned in the vacuum air line of an internal combustion engine. The check valve includes a single-piece valve body having an outlet port and two or more inlet ports, with one outlet port located substantially in line with the inlet port and connected by a venturi tube. The second inlet port is separated from the main air flow line by the valve stem and a diaphragm which allows communication there between and prevents back pressure. The second inlet port communicates with the outlet port through the valve stem and a second venturi tube which provides a vacuum boost to a device, usually vehicle brakes, connected to the inlet. The use of seal diaphragms having a non-constant radius allows for faster recovery time for replenishment than prior art devices.
    Type: Application
    Filed: February 4, 2014
    Publication date: June 5, 2014
    Applicant: Nyloncraft, Inc.
    Inventor: Bernard Joseph Sparazynski
  • Publication number: 20140123600
    Abstract: The present invention relates to a multi-layer control device and method of making that may be attached to a receptacle that provides a hermetic and/or water, fluid resistant seal but allows for the expulsion of air pressure from the interior of a receptacle. The multi-layer control device, more specifically a valve, has a fluid layer such as a low viscosity fluid that is applied during the manufacturing of the valve and incorporated into the layer of the valve. The valve includes a base layer that is provided over a first adhesive layer, a second adhesive layer is provided over the base layer, a fluid layer, a third adhesive layer and a cover layer. The second adhesive and fluid layers are discontinuous and are applied to the perimeter of the base layer, respectively. The base layer, first adhesive layer, and material layer have at least one aperture to facilitate the release of gas or fluid from the interior of a receptacle.
    Type: Application
    Filed: January 13, 2014
    Publication date: May 8, 2014
    Inventor: David Gardner
  • Patent number: 8714200
    Abstract: A backflow-prevention system that substantially prevents contaminant backflow at a treatment site. The system includes a fluid ejector tube for insertion into the patient's mouth and a backflow prevention device that receives fluid from the fluid ejector tube. The backflow prevention device includes an internally positioned valve member. The valve member limits contaminant backflow. The valve member is movable between open and closed positions based on a vacuum pressure condition in the system.
    Type: Grant
    Filed: August 13, 2012
    Date of Patent: May 6, 2014
    Assignee: RJC Products, LLC
    Inventors: Richard Paul Bushman, Jerry Schueller
  • Patent number: 8701928
    Abstract: A spout for a spill-proof beverage container has a side wall defining an outer surface and an inner surface defining a discharge passage. A valve in the discharge passage includes two flanks formed integrally with the side wall and projecting from opposite sides of the inner surface of the spout. The front end faces of the flanks mate with one another along a slit that extends generally parallel to the longer axis of the spout. At least the front portions of the flanks are inclined away from the mouth of the spout such that pressure within the container acts to urge the flanks against one another so as to maintain the slit closed. Deformation of the side wall when the spout is held between the lips of a drinker acts to open the slit and create an opening between the flanks to allow the beverage to be discharged.
    Type: Grant
    Filed: September 17, 2010
    Date of Patent: April 22, 2014
    Inventor: Ilan Zadik Samson
  • Patent number: 8657254
    Abstract: A gas release device that includes a reservoir of pressurised gas and a passageway from said reservoir to an outlet. There is an elastic gas permeable membrane in the passageway that allows gas release only via the membrane. A gas impermeable member is provided in the passageway that includes an interface positioned to contact said gas permeable membrane. Displacement of the gas permeable membrane is responsive to the pressure of the gas in the reservoir such that there is a greater interfacial contact between the gas impermeable member and the gas permeable membrane at a higher gas pressure than at lower pressure to thereby vary the exposed cross sectional area of the permeable membrane available to the flow in an inverse relationship to pressure.
    Type: Grant
    Filed: October 18, 2007
    Date of Patent: February 25, 2014
    Assignee: The New Zealand Institute for Plant and Food Research Limited
    Inventors: Lynn Roland Cate, Robert Bruce Jordan, Dean Antony Barker, Keith Robert Sharrock, Mark Francis Roche, Ronald Francis Henzell
  • Patent number: 8640928
    Abstract: A closure assembly for a container includes a closure cap having an open ended body with a peripheral wall and a top wall provided with a dispensing passage which is defined by a collar arranged to the top wall. A self closing valve is arranged in the closure cap. The valve includes a slit central portion and a skirt extending downwardly from the central portion, which has an outwardly extending flange. The skirt is arranged in the collar and the flange is located below the collar and extends radially outwardly beyond it. On a lower surface of the top wall, a plurality of lips is formed outward from the collar. The lips are folded over the flange such that the latter is partly enveloped between the lips and the top wall so as to secure the valve in the closure cap.
    Type: Grant
    Filed: December 20, 2007
    Date of Patent: February 4, 2014
    Assignee: Plasticum Group B.V.
    Inventors: Lenny Marita Ellenkamp-Van Olst, Sebastiaan Wilhelmus Josephus Den Boer, Gerrit Jan Stegeman, Jan Van Alfen
  • Patent number: 8636901
    Abstract: A fluid filter is described, comprising a filter body defining a cavity for a filter element, a first end cap for fitting on one end of the filter body, having an integrated single piece anti drain back valve and seal, and a second end cap for fitting on an opposite end of the filter body, having an integrated two part relief valve and supports for the filter element, formed by a relief valve body and a relief valve disc.
    Type: Grant
    Filed: January 13, 2009
    Date of Patent: January 28, 2014
    Assignee: Mann+Hummel Purolator Filters LLC
    Inventors: Travis Canup, Rajan Ahuja, L. Steven Cline
  • Patent number: 8631801
    Abstract: Earpieces and expandable insertion devices are provided. An earpiece includes an ambient sound microphone (ASM); an ear canal microphone (ECM); an ear canal receiver (ECR); and an inflatable sealing section. The sealing section includes at least one pressure valve. The at least one pressure valve opens when the pressure in the sealing section is greater than an ambient pressure.
    Type: Grant
    Filed: July 6, 2009
    Date of Patent: January 21, 2014
    Assignee: Personics Holdings, Inc
    Inventor: John Patrick Keady
  • Patent number: 8622089
    Abstract: The present invention provides a check valve 10 through which a fluid can satisfactorily open and pass when the fluid flows forward, and a bag 1a including the check valve and having a function of satisfactorily discharging a fluid. This check valve includes a one-side airtight base sheet 31, an inlet 11, a valve sheet 61, an auxiliary sheet 51, and the other-side airtight base sheet 21. The portion between the other-side airtight base sheet 21 and the valve sheet 61 serves as a valve flow channel 13, and a fluid flowing forward passes through the valve flow channel 13 from the inlet 11 and flows out from the outlet 12. The valve sheet 61 is fixed at its upstream end by the fixation portion 14, is freely movable at its downstream end. On the fixation portion 14 and the one-side airtight base sheet 31 of the inlet 11, the introduction recesses 15 are formed.
    Type: Grant
    Filed: December 29, 2010
    Date of Patent: January 7, 2014
    Inventor: Mikio Tanaka
  • Patent number: 8617277
    Abstract: A pressure control valve assembly, (i.e. pressure regulator valve assembly) is described which is configured for at least a two stage operation including: a first stage in which flow is allowed through two sections of the valve frame; and, a second stage in which the valve member is biased against one of the sections of the valve frame and not the second section. Specific example features and configurations are depicted and described. A crankcase ventilation filter assembly including the pressure control valve assembly is described.
    Type: Grant
    Filed: June 18, 2010
    Date of Patent: December 31, 2013
    Assignee: Donaldson Company, Inc.
    Inventors: Thomas De Paepe, Gert Willems
  • Patent number: 8607819
    Abstract: A water saving device and method of using same. The water saving device includes a sleeve and an elastomer fixed in the sleeve. The elastomer has at least a permanently-open hole, a throttling hole and a protrusion for arranging the permanently-open hole and the throttling hole. The permanently-open hole is a hole which still maintains open status after being distorted by pressure. The throttling hole is a hole which will be closed approximately after distortion by pressure. The water saving device not only has the function of decreasing the flow, but also can adjust the flow of the shower and faucet to make the flow steady.
    Type: Grant
    Filed: July 31, 2009
    Date of Patent: December 17, 2013
    Assignees: Xiamen Solex High-Tech Industries Co., Ltd.
    Inventors: Tianyu Chen, Renzhong Li, Robert Zhou
  • Publication number: 20130317413
    Abstract: A method of manufacturing a valve for a fluid system is described herein. The method comprises determining a target cracking pressure for the valve of the fluid system, providing an inner wall having a first height and an outer wall having a second height, the first height varying from the second height by a height differential, and attaching a flexible membrane to the outer wall at the second height, wherein a central zone of the flexible membrane is in contact with the inner wall at the first height and the inner wall biases the flexible membrane from a neutral condition. The height differential is selected to provide resistance to displacement from the inner wall until pressure acting on the membrane exceeds the target cracking pressure.
    Type: Application
    Filed: May 23, 2012
    Publication date: November 28, 2013
    Inventors: Leslie A. Field, Robert Joseph Sanchez, JR., Matthew J.A. Rickard
  • Patent number: 8590555
    Abstract: The present invention presents various novel approaches to solving the problems inherent in measuring biological pressures in high pressure systems. Thus, to protect a pressure transducer exposed to fluid flows at higher pressures than its overpressure rating, a novel valve is used that closes a protected leg in which the transducer is located. The various exemplary embodiments of such valves each have a high pressure input, one or more low pressure inputs, and an output. In operation, when a high pressure fluid flow occurs at a high pressure input, such valves automatically close the low pressure inputs. Alternatively, a novel transducer system is presented, which automatically limits the effective pressure sensed by a transducer to a certain maximum.
    Type: Grant
    Filed: January 26, 2011
    Date of Patent: November 26, 2013
    Assignee: ACIST Medical Systems, Inc.
    Inventors: Robert F. Wilson, Douglas J. Duchon, Mark Gabbard, Khader Mohiuddin, Thomas J. McPeak
  • Publication number: 20130298885
    Abstract: A check valve for a breather assembly includes a valve seat defining a seat opening, a valve stop coupled to the valve seat, and a valve element disposed between the valve seat and the valve stop and including a first element surface and a second element surface. The valve element may be sufficiently flexible to actuate between a closed position, in which the first element surface engages the valve seat, and an open position, in which the second element surface engages the valve stop. The valve element may further include a passage, such as apertures, extending from the first element surface to the second element surface.
    Type: Application
    Filed: May 10, 2012
    Publication date: November 14, 2013
    Applicant: CATERPILLAR, INC.
    Inventors: Deven John Efta, D. Brent Cluskey
  • Publication number: 20130291982
    Abstract: Tunable valve assemblies attenuate valve-generated vibration at one or more predetermined assembly resonant frequencies which are typically altered to correspond to specific pump housing resonant frequencies. Each tunable valve assembly comprises a valve body having a peripheral groove spaced radially apart from a central reservoir. An adjustable flange may be coupled to the valve body for imposing a predetermined shear preload by partially constraining a viscoelastic element in the reservoir. One or more valve assembly resonant frequencies are thus predictably altered. Further, the associated valve-generated vibration spectrum is narrowed, and its amplitude is reduced through hysteresis loss of closing impulse energy at each predetermined assembly resonant frequency. Assembly resonant frequencies are additionally or alternatively altered through choice of viscoelastic elements and inclusions (e.g., shear-thickening materials) in the reservoir and/or peripheral groove.
    Type: Application
    Filed: July 9, 2013
    Publication date: November 7, 2013
    Inventors: Dennis W. Gilstad, Barbara C. Gilstad
  • Patent number: 8555925
    Abstract: The invention relates to a pressure relief valve for a packaging container (3), comprising a base body (4) with a central through opening (9), a sealing surface (14) and a peripheral region (18), wherein the peripheral region (18) may be sealingly connected to an inner side (3a) of the packaging container (3) and the sealing surface (14) has an inwardly tapering form and a membrane (6), making contact with the sealing surface (14) to permit a seal wherein a fluid (5) is arranged between the sealing surface (14) and the membrane (6). The membrane (6) is flexible and a recess (30) is made in the base body (4) into which the central through opening (9) opens out, wherein in the opening region of the central through opening (9), an annular bead (12) projecting in the direction of the membrane (6) is arranged, projecting into the recess (30).
    Type: Grant
    Filed: January 11, 2010
    Date of Patent: October 15, 2013
    Assignee: Robert Bosch GmbH
    Inventors: Hans-Peter Stadel, Herbert Stotkiewitz, Juergen Haak
  • Patent number: 8544490
    Abstract: A valve comprising an inlet port, an outlet port, an exhaust port and a diaphragm disposed between the inlet and exhaust ports which is moveable, in response to air pressure within the valve, between a first position in which it seals the exhaust port and a second position in which the exhaust port is open, there being one or more projections associated with the exhaust port on which the diaphragm is able to rest in its first position.
    Type: Grant
    Filed: February 15, 2008
    Date of Patent: October 1, 2013
    Assignee: Haldex Brake Products Ltd.
    Inventor: Ian Martin Cottom
  • Publication number: 20130240050
    Abstract: A non-return valve fitted on a tubular element for use for the reinforcement and consolidation of soil, for example, in an excavation. The non-return valve includes a portion of elastomer material which has a nick and is connected to a structural body tightened onto the tubular element. The structural body can be connected rigidly to the portion of elastomer material or may be at least partially incorporated therein. The body has a central portion with a window within which the nick is arranged, and the edges of the nick open out and function as a non-return valve under the action of a fluid under pressure injected into the interior of the tubular element and emerging from radial holes in the vicinity of the nick.
    Type: Application
    Filed: August 30, 2011
    Publication date: September 19, 2013
    Inventor: Cristiano Bonomi