Diaphragm Patents (Class 251/331)
  • Patent number: 8851443
    Abstract: Actuator apparatus having a multi-stable element actuated by memory alloy actuating elements. In one embodiment, the multi-stable actuator comprises a bistable (two-state) diaphragm element adapted to alternate between two stable configurations via forces exerted on the diaphragm by more than one memory alloy filaments in response to thermal activation. The bistable diaphragm element is coupled to a magnetic actuator element resident on a dry portion of a valve fitting, while a plunger actuated by the magnetic actuator element is resident on a wet portion of a valve fitting. Methods for making and using the bistable actuator apparatus are also disclosed.
    Type: Grant
    Filed: December 15, 2010
    Date of Patent: October 7, 2014
    Assignee: Autosplice, Inc.
    Inventor: Leonid Foshansky
  • Patent number: 8851452
    Abstract: Plungers and plunger assemblies for a diaphragm-sealed valve are provided. Each plunger is adapted to be received in a passage of the valve body and includes a base member and an upper member having a transversal play in this passage with respect to the base member. A resilient middle element is provided between the upper and base member. The base member is connected to a plunger actuating mechanism within the valve body. The upper member may therefore be self-aligning within the passage.
    Type: Grant
    Filed: September 8, 2009
    Date of Patent: October 7, 2014
    Assignee: Mecanique Analytique Inc.
    Inventors: Yves Gamache, André Fortier
  • Publication number: 20140291558
    Abstract: A normally closed valve for microfluidic components includes a polymer substrate and a polymer membrane film arranged on the polymer substrate. The polymer substrate has a first chamber, a second chamber, and a fluidic barrier element configured to separate the first chamber from the second chamber. The first chamber is fluidically coupled to the second chamber by the polymer membrane film, and, in an initial configuration, a connection of the polymer membrane film to the fluidic barrier element prevents a fluidic communication of the first chamber to the second chamber. The first chamber is at least partially filled with a substance in the initial configuration, and a transfer of the substance from the first chamber into the second chamber takes place by applying a pressure to the substance. The pressure is chosen to be great enough to disconnect the connection of the polymer membrane film to the fluidic barrier element.
    Type: Application
    Filed: March 19, 2014
    Publication date: October 2, 2014
    Applicant: Robert Bosch GmbH
    Inventors: Franz Laermer, Jochen Rupp, Daniel Czurratis, Tim Gumbel
  • Patent number: 8840082
    Abstract: A fluid control valve is configured in a manner that a first passage has at one end portion thereof a first port communication passage communicating with a first port, and at the other end portion thereof a first valve hole communication passage communicating with a valve hole, and the first port communication passage and the first valve hole communication passage communicate with each other. The resin valve body is provided with a valve seat support part which supports the valve seat and which is provided between the valve chamber, and the first port communication passage and the first valve hole communication passage. The valve seat support part has a valve seat reinforcement part, and the valve seat reinforcement part is formed so as to partially close the inside of the first passage.
    Type: Grant
    Filed: September 30, 2011
    Date of Patent: September 23, 2014
    Assignee: CKD Corporation
    Inventors: Hideyuki Takeda, Shinji Ikenoya, Hiroyuki Murase
  • 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
  • Publication number: 20140252261
    Abstract: A flow regulating device 1 is provided which includes: a housing 10c including a pressure chamber 12 formed therein; a second housing 10b including a first space 22 formed therein; a valve element 31 which forms a closed state in which communication is shut off between an upstream flow channel 15 and a downstream flow channel 16, or an open state in which communication is provided between the upstream flow channel 15 and a downstream flow channel 16; a diaphragm 35 connected to the valve element 31; a guide member 42 connected to the diaphragm 35 which is movable in an axial direction of the valve element 31 with the movement of the valve element 31 while being in a state in which the guide member 42 is in contact with an inner circumferential surface of the pressure chamber 12.
    Type: Application
    Filed: March 7, 2014
    Publication date: September 11, 2014
    Applicant: SURPASS INDUSTRY CO., LTD.
    Inventor: Kazuki HIRAI
  • Patent number: 8827107
    Abstract: An improved no-spill cup construction and valve assembly which provides an extremely secure seal against accidental liquid flow from the cup spout. The act of sucking at the cup spout creates negative pressure or a partial vacuum against a valve near the spout, causing the valve to open and allowing the flow of liquid therethrough.
    Type: Grant
    Filed: January 10, 2012
    Date of Patent: September 9, 2014
    Assignee: Luv n' care, Ltd.
    Inventor: Nouri E. Hakim
  • Publication number: 20140246618
    Abstract: Plastic microfluidic structures having a substantially rigid diaphragm that actuates between a relaxed state wherein the diaphragm sits against the surface of a substrate and an actuated state wherein the diaphragm is moved away from the substrate. As will be seen from the following description, the microfluidic structures formed with this diaphragm provide easy to manufacture and robust systems, as well readily made components such as valves and pumps.
    Type: Application
    Filed: May 10, 2014
    Publication date: September 4, 2014
    Applicant: RHEONIX, INC.
    Inventors: Peng Zhou, Lincoln C. Young
  • Patent number: 8814134
    Abstract: The invention relates to a piezoelectric drive, in particular for microvalves. The drive comprises a deformation layer coupled on one side to a piezoelectric layer, which is provided with at least one pair of electrodes, made of two electrodes of opposite polarities, to provide electricity. According to the invention, both electrodes of opposite polarities of the pair of electrodes are arranged together on the side of the piezoelectric layer facing away from the deformation layer. The invention also relates to a microvalve comprising at least one valve channel and a membrane that opens or closes the valve channel, where the membrane simultaneously forms the deformation layer of such a piezoelectric drive.
    Type: Grant
    Filed: April 20, 2010
    Date of Patent: August 26, 2014
    Inventors: Hubert Lachner, Michael Foerg, Norbert Schwesinger, Sebastian Pobering, Sandy Zaehringer
  • Publication number: 20140231692
    Abstract: A diaphragm type flush valve for use with toilet devices such as urinals and water closets that includes a valve member, a diaphragm, a guide member extends downwardly from the diaphragm, and a disk positioned on top of the diaphragm. The disk is threadably attached to the guide member and functions to secure the diaphragm, the disk, and the guide member into the valve member. The disk includes a rigid body made of a composite material and a seal member made of an adhesive and a thin layer of rubber, with the seal member having a portion on an upper surface of the disk for sealing contact with a relief valve. The disk also includes a plurality of spaced protrusions and inwardly directed on its upper surface in order to add accuracy and stability to the diaphragm assembly.
    Type: Application
    Filed: January 27, 2014
    Publication date: August 21, 2014
    Applicant: Zurn Industries, LLC
    Inventors: Michael A. Funari, Larry M. Elting, Jerome S. Markijohn
  • Publication number: 20140217321
    Abstract: A diaphragm valve with an assembly or cartridge that facilitates replacement of the diaphragm, the valve seat or both. The assembly may be a valve assembly having a diaphragm, a seat carrier and a valve seat that are combined into a discrete subassembly or cartridge for a diaphragm valve. The assembly as a discrete cartridge can be easily removed and replaced in order to change out the diaphragm or the valve seat or both. In one embodiment, the diaphragm has a perimeter that is welded to one side of the seat carrier. Flow capacity is favored by providing a gap between a seat carrier and a flow port of the valve body where the gap in part defines a flow area that is the same or greater than the flow area of the flow port. Methods for installing and replacing a valve assembly into a valve body are also disclosed.
    Type: Application
    Filed: January 31, 2014
    Publication date: August 7, 2014
    Applicant: Swagelok Company
    Inventor: William H. Glime
  • Patent number: 8794595
    Abstract: Diaphragm valve with internal leak detection and improved external leak sealing performance. In diaphragm valves comprising diaphragms that have shields and backings, a rigid seal plate interposed between the shield and backing prevents peripheral regions of the shield from cold-flowing into the backing, despite the compression forces produced by tightening the fasteners that secure the diaphragm to the valve's bonnet assembly and body. An access port passing through the seal plate provides an interface between a void located between the shield and the backing and a breach detector. The breach detector is configured to detect pressure, volume, moisture or mass deviations in fluid disposed in the void, and the deviations indicate whether there's a rupture in the shield or the backing. The breach detector can be connected to an alarming device or signaling system to provide warnings and alerts to valve operators, process control panels or data communication networks.
    Type: Grant
    Filed: July 25, 2010
    Date of Patent: August 5, 2014
    Assignee: Merck Sharp & Dohme Corp.
    Inventors: Daniel I. Reed, Joseph T. Sullivan, Gerald C. Shifflett
  • Patent number: 8794594
    Abstract: Plungers and plunger assemblies for a diaphragm-sealed valve are provided. Each plunger is adapted to be received in a passage of the valve body and includes a base member and an upper member having a longitudinal play in this passage with respect to the base member. A resilient middle element is provided between the upper and base member. The base member is connected to a plunger actuating mechanism within the valve body. Optionally, the upper member may be self-aligning within the passage. The plunger can be used to compensate for temperature variations experienced by the valve in use.
    Type: Grant
    Filed: September 8, 2009
    Date of Patent: August 5, 2014
    Assignee: Mecanique Analytique Inc.
    Inventors: Yves Gamache, Andre Fortier
  • Publication number: 20140203198
    Abstract: A sealing apparatus for a back pressure regulator includes: a body defining a process surface, and including: at least one process void communicating with the process surface; a recess disposed in the process surface; a floating support hub disposed in the recess, carrying an O-ring; a vent void communicating with the recess; an inlet port disposed in fluid communication with the at least one process void and adapted to be coupled in fluid communication with a fluid at a process pressure; and an outlet port disposed in fluid communication with the vent void; and a diaphragm having opposed reference and process sides, the diaphragm disposed against the body such that the process side is substantially coplanar with the process surface.
    Type: Application
    Filed: June 23, 2012
    Publication date: July 24, 2014
    Inventors: Jeffrey Dean Jennings, Tony Boyd Tang, Keith Alan Roberts
  • Patent number: 8783652
    Abstract: An apparatus for controlling liquid flow wherein the apparatus comprises an orifice and an adjacent flexible diaphragm separated from each other by a gap through which a liquid flows. The diaphragm is sufficiently flexible to vary the gap thereby controlling the rate of liquid flowing through the orifice or to provide a positive liquid shutoff of liquid flowing through the orifice. A method for controlling liquid flow through the apparatus comprises flexing said diaphragm to vary a size of the gap to control the rate of liquid flowing through the orifice or to provide a positive liquid shutoff of liquid from flowing through the orifice.
    Type: Grant
    Filed: March 5, 2013
    Date of Patent: July 22, 2014
    Assignee: MPS Corporation
    Inventors: Thuc M. Dinh, Benjamin Y. H. Liu, Yamin Ma
  • Publication number: 20140191149
    Abstract: A diaphragm sealed flow cavity comprises a first body comprising a support surface, a diaphragm comprising an outer portion that is joined by a weld to the first body, a clamped portion, and an inner portion that is movable along an axis, with the clamped portion of the diaphragm being compressed between the bearing surface and the support surface. The diaphragm sealed flow cavity may include a cylindrical body having a crimped portion for joining the cylindrical body to the first body. The diaphragm sealed flow cavity may also include a member that applies a live load to the clamped portion of the diaphragm. In the exemplary embodiments, the diaphragm sealed flow cavity may be realized as part of a diaphragm flow control valve having a valve body, diaphragm and a housing.
    Type: Application
    Filed: November 13, 2013
    Publication date: July 10, 2014
    Applicant: Swagelok Company
    Inventors: Branden W. Keeper, William H. Glime, III, Daniel E. Zeiler
  • Patent number: 8770547
    Abstract: A fluid control valve includes a resin valve body formed with first and second passages, a resin valve upper part connected to an upper surface of the valve body, and a resin diaphragm valve element held between the valve body and the valve upper part.
    Type: Grant
    Filed: January 19, 2012
    Date of Patent: July 8, 2014
    Assignee: CKD Corporation
    Inventors: Mitsuhiro Takeuchi, Michio Miyashita
  • Patent number: 8763642
    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: Grant
    Filed: August 20, 2011
    Date of Patent: July 1, 2014
    Assignee: IntegenX Inc.
    Inventor: Mattias Vangbo
  • Publication number: 20140175711
    Abstract: The present disclosure relates to a microvalve using surface tension, a microfluidic chip including same and a method for manufacturing same. More particularly, the present disclosure relates to a microvalve using surface tension, a microfluidic chip including same and a method for manufacturing same, wherein the microvalve can be manufactured through a simple process and the microvalve and a coaxial sample channel are not separated, and thus the microvalve may be easily installed not only in an existing quadrangular channel but also in the coaxial channel so as to control the flow and amount of a microfluid (sample).
    Type: Application
    Filed: November 23, 2011
    Publication date: June 26, 2014
    Applicant: KOREA UNIVERSITY RESEARCH AND BUSINESS FOUNDATION
    Inventors: Sang Hoon Lee, Edward Kang
  • Publication number: 20140166918
    Abstract: A diaphragm valve, more particularly for fluid media, includes a valve body, a diaphragm and a connection piece that can be activated by a drive in order to act on the diaphragm, wherein the valve body, the diaphragm and the connection piece are made of plastic. The valve body and the diaphragm are made of different plastics, wherein the plastic of the diaphragm is more elastic than the plastic of the valve body.
    Type: Application
    Filed: July 2, 2012
    Publication date: June 19, 2014
    Applicant: GEMU Gebr. Muller Apparatebau GmbH & Co. Kommanditgesellschaft
    Inventors: Sascha Alexander Kropf, Peter Jan Vokurka, Fritz Mueller
  • Publication number: 20140158923
    Abstract: A diaphragm valve, in particular for fluid media, includes a valve body, a diaphragm, and a connecting piece which can be actuated by a drive unit to act on the diaphragm, wherein the valve body and the diaphragm are made of plastic. Two mutually independent seals are provided for sealing the fluid medium with respect to the outside, wherein the valve body and the diaphragm are welded to each other, and the diaphragm is mechanically sealed between the drive unit, or an intermediate piece, and the valve body.
    Type: Application
    Filed: July 2, 2012
    Publication date: June 12, 2014
    Applicant: GEMÜ Gebr. Müller Apparatebau GmbH & Co. Kommanditgesellschaft
    Inventors: Kai-Uwe Wolpert, Jürgen Mayer
  • Patent number: 8740177
    Abstract: An irrigation valve has a valve body with an inlet passage, an outlet passage, and a valve seat intermediate the inlet passage and the outlet passage. A diaphragm includes a valve seat engaging portion that cooperates with the valve seat to control flow through the valve. The valve seat and the valve seat engaging portion of the diaphragm are offset relative to the inlet passage to improve flow through the valve to reduce pressure and energy loss.
    Type: Grant
    Filed: September 30, 2011
    Date of Patent: June 3, 2014
    Assignee: Rain Bird Corporation
    Inventor: Samuel C. Walker
  • Patent number: 8733402
    Abstract: A pressure control valve including a valve housing having a first opening and second opening. The valve housing including a valve member configured to control gas flow between the first opening and the second opening. The valve member is supported by a first membrane and a second membrane, both of which are formed on a single-piece membrane body.
    Type: Grant
    Filed: June 16, 2009
    Date of Patent: May 27, 2014
    Assignee: Mahle International GmbH
    Inventors: Leszek Goerlich, Stefan Ruppel, Hartmut Sauter
  • Patent number: 8720858
    Abstract: Diaphragm valve having a valve body with an inlet and an outlet, a sealing membrane, and a connecting piece connecting the sealing membrane to a pressure piece of a drive. The valve body, the sealing membrane and the connecting piece are rigidly connected together to form an interchangeable, sealed valve body unit that can be connected to the drive. The connecting piece is molded on the sealing membrane, and the valve body and the sealing membrane are welded ultrasonically to one another.
    Type: Grant
    Filed: September 2, 2009
    Date of Patent: May 13, 2014
    Assignees: Sartorius StedimBioteen GmbH, Gemue Gebr. Mueller Apparatelbau GmbH & Co. KG
    Inventors: Lars Böttcher, Jan Schäfer, Kai-Uwe Wolpert, Jürgen Mayer
  • Patent number: 8714515
    Abstract: A hydraulic actuating device for a sliding stem control valve assembly is mounted between a control valve and an actuator housing. The hydraulic actuating device is connected to one of a control valve stem, an actuator stem, and a stem connector and the hydraulic actuating device moves either the control valve stem, the actuator stem, or the stem connector in response to varying hydraulic pressure within the hydraulic actuating device. The hydraulic actuating device may be used to override an actuator of the sliding stem valve during emergency operations, or to provide a backup actuator in the case of a primary actuator malfunction.
    Type: Grant
    Filed: December 28, 2009
    Date of Patent: May 6, 2014
    Assignee: Emerson Process Management (Tianjin) Valces Co., Ltd
    Inventors: Li Nannan, Gao Chun
  • Patent number: 8714517
    Abstract: Bonnet apparatus to provide live-loading to a seal are described herein. An example bonnet assembly includes a housing having a recessed opening to define a shoulder and a sealing disc disposed within the recessed opening. A biasing element is disposed in the recessed opening between a flange of the sealing disc and the shoulder of the housing to provide a load to a seal to be disposed between the housing and the fluid device. The biasing element biases the sealing disc away from the housing and the biasing element enables the sealing disc to move within the recessed opening relative to the housing when the bonnet assembly is coupled to the fluid device.
    Type: Grant
    Filed: September 20, 2010
    Date of Patent: May 6, 2014
    Assignee: Fisher Controls International, LLC
    Inventors: Richard James Anagnos, Thomas Jeffrey Miller
  • Patent number: 8708690
    Abstract: A blow valve comprises at least one blow valve body, an environmentally controlled first receiving space constructed in the blow valve body and having at least one entry opening and at least one exit opening for receiving and conveying an operating gas, and a second receiving space constructed in the blow valve body for the guidance of a pressure distribution member such as, for example, a piston element. A sealing component prevents exchange of gas between the first receiving space and the second receiving space and is arranged between the first and second receiving spaces. The sealing component has a stationary part for fixing to the blow valve body and a movable part for changing the flow rate of the operating gas, wherein the setting member is surrounded in part by the sealing component and is coupled to the movable portion in order to move it.
    Type: Grant
    Filed: January 10, 2012
    Date of Patent: April 29, 2014
    Assignee: Krones AG
    Inventors: Josef Knott, Eduard Handschuh
  • Patent number: 8708308
    Abstract: A diaphragm valve is disclosed. The diaphragm valve includes a valve body including a housing defining a fluid flow passageway and a valve seat. A bonnet assembly including a housing is mounted to the valve body. A diaphragm, a backing cushion and a resilient member are positioned between the bonnet assembly and the valve body. The resilient member is sandwiched between the housing of the bonnet assembly and the backing cushion for urging the backing cushion toward the diaphragm, thereby urging the diaphragm against the valve body.
    Type: Grant
    Filed: August 5, 2010
    Date of Patent: April 29, 2014
    Assignee: ITT Manufacturing Enterprises, Inc.
    Inventor: Timofey Sitnikov
  • Patent number: 8689817
    Abstract: A diaphragm valve including a valve body, a diaphragm assembly and an actuator assembly having a housing body that isolates the actuator from the ambient atmosphere. The diaphragm assembly is welded to the valve body to reduce and/or eliminate fluid leakage around the diaphragm assembly. Additionally or alternatively, the housing body for the actuator assembly may be welded to the valve body to reduce fluid leakage. The welding may be performed using ultrasonic welding techniques.
    Type: Grant
    Filed: January 4, 2007
    Date of Patent: April 8, 2014
    Assignee: Entegris, Inc.
    Inventors: John A. Leys, Mike Schleicher
  • Patent number: 8678349
    Abstract: A ball valve and a valve shaft are in a valve chamber. The ball valve opens and closes a valve port. A coil spring arranged in a spring chamber pushes the valve shaft against a diaphragm via a spring bracket of the valve shaft. A cone portion and a flat portion (or a concave portion) inside the cone portion are on the diaphragm. A diaphragm-side end face of the valve shaft is larger in diameter than the flat portion of the diaphragm. When the diaphragm is initially deformed, a boundary portion interposed between the cone portion and the flat portion abuts on the diaphragm-side end face.
    Type: Grant
    Filed: March 26, 2010
    Date of Patent: March 25, 2014
    Assignee: Kabushiki Kaisha Saginomiya Seisakusho
    Inventors: Tadaaki Ikeda, Yasumasa Takada
  • Publication number: 20140077109
    Abstract: In a fluid control valve, a valve part houses a diaphragm in a valve body including a valve seat, first and second ports, and a drive part includes a piston dividing a piston chamber in a cylinder body into first and second chambers, and a rubber sealing member attached to the outer peripheral surface of the piston. A constriction is provided between the piston chamber and the surface of the cylinder body contacting the valve body. The cylinder body is formed with an exhaust port communicating with the first chamber, an operation port communicating with the second chamber, and a purge port communicating with a fluid non-contact chamber. The piston is formed with a flow path which enables communication between the first chamber and the fluid non-contact chamber. Accordingly, a temperature increase of the drive part can be restricted, and degradation of internal parts can be prevented.
    Type: Application
    Filed: July 17, 2012
    Publication date: March 20, 2014
    Applicant: CKD CORPORATION
    Inventors: Michio Miyashita, Yukie Nakamura
  • Patent number: 8667989
    Abstract: An aseptic valve or sanitary valve has an elongated tubular, cylindrical valve housing, with one or more top-hat diaphragms and associated valve plugs positioned transverse to the axis of the tubular valve housing. An actuator urges the stem and head of the valve plug upward so that the associated diaphragm is urged against a valve seat to close the valve. The actuator also moves these elements downward and away from the seat to open the valve. Plural valve arrangements can be joined end to end to accommodate multiple flow paths.
    Type: Grant
    Filed: July 19, 2013
    Date of Patent: March 11, 2014
    Assignee: Feldmeier Equipment, Inc.
    Inventor: Robert H. Feldmeier
  • Publication number: 20140061526
    Abstract: A fluid inflow passage 3 is made up of an inner communication portion 11 having an upper end opening that leads to a center portion of a bottom surface of a recess 5 in a body and a lower end surface that is closed and an outer communication portion 12 having one end that leads to the inner communication portion 11 and the other end that forms a fluid inlet. The inner communication portion 11 has a column-like protruding portion 13 provided on the lower end surface 11a so as to form a column-like non-passage portion in the inner communication portion and thereby forms a cylindrical-hollow passage. It thus becomes possible to provide a diaphragm valve 1 with which a Cv value can be increased without increasing an outer shape.
    Type: Application
    Filed: August 28, 2013
    Publication date: March 6, 2014
    Applicant: Fujukin Incorporated
    Inventors: Kazunari Watanabe, Izuru Shikata
  • Publication number: 20140061525
    Abstract: A weir-type diaphragm valve a valve body with a fluid channel and a weir having a weir sealing portion; and a diaphragm with two or more diaphragm portions, including a diaphragm weir sealing portion at the weir to respond to one force and travel against the weir sealing portion to close the weir-type diaphragm valve and stop fluid flow through the fluid channel, and respond to a second force and travel away from the weir sealing portion to open the weir-type diaphragm valve and allow fluid flow through the fluid channel, a center flexing portion off the weir configured to experience convex and concave flexing extremes when the weir-type diaphragm valve is closed and opened, and an outer sealing portion configured to be fully constrained between components, one of which includes the valve body, when the weir-type diaphragm valve is closed and opened.
    Type: Application
    Filed: August 30, 2012
    Publication date: March 6, 2014
    Applicant: ITT MANUFACTURING ENTERPRISES LLC
    Inventor: Louis E. MATALON
  • Patent number: 8628055
    Abstract: A bi-directional electrostatic microvalve includes a membrane electrode that is controlled by application of voltage to fixed electrodes disposed on either side of the membrane electrode. Dielectric insulating layers separate the electrodes. One of the fixed electrodes defines a microcavity. Microfluidic channels formed into the electrodes provide fluid to the microcavity. A central pad defined in the microcavity places a portion of the second electrode close to the membrane electrode to provide a quick actuation while the microcavity reduces film squeezing pressure of the membrane electrode. In preferred embodiment microvalves, low surface energy and low surface charge trapping coatings, such as fluorocarbon films made from cross-linked carbon di-fluoride monomers or surface monolayers made from fluorocarbon terminated silanol compounds coatings coat the electrode low bulk charge trapping dielectric layers limit charge trapping and other problems and increase device lifetime operation.
    Type: Grant
    Filed: May 1, 2007
    Date of Patent: January 14, 2014
    Assignee: The Board of Trustees of the University of Illinois
    Inventors: Mark A. Shannon, Byunghoon Bae, Richard I. Masel
  • Publication number: 20140001392
    Abstract: A fluid transfer device for transferring fluid into or out of a fluid vessel, such as a tank, and is particularly useful in transferring fluids with particulates or high viscosity in a substantially aseptic, hygienic, or sterile manner. The device has a body with an elongate passage extending through the body. The body has a proximal end and a distal end. A longitudinally displaceable shaft is disposed in and extends along the passage in the body. A plug sealing the passage is at a first location. A diaphragm sealing the passage is at a second location intermediate the plug and the distal end of the passage. The shaft extends through and is secured to the diaphragm. A fluid transfer opening is located in the passage between the diaphragm and the plug. Longitudinal displacement of the shaft causes the fluid transfer opening to be in fluid communication with a fluid vessel, the diaphragm stretching to accommodate the displacement of the shaft while maintaining an aseptic seal of the passage.
    Type: Application
    Filed: August 30, 2013
    Publication date: January 2, 2014
    Applicant: Allpure Technologies, Inc.
    Inventor: Michael A. Zumbrum
  • Publication number: 20140001391
    Abstract: Provided is a diaphragm valve that can improve durability when the diaphragm valve is downsized. In a pressing adaptor, a whole lower surface thereof has a taper shape at a predetermined inclination angle. A bottom surface of a depression of a body has a circular flat portion and a depression that is continued to an outer circumference of the flat portion and is depressed with respect to the flat portion. In a diaphragm, in a state where a fluid inflow channel is opened, an upper surface of an outer circumferential edge portion comes into surface contact with the taper-shaped lower surface of the pressing adaptor, and a lower surface of the outer circumferential edge portion comes into line contact with the outer circumference of the flat portion of the bottom surface of the depression of the body.
    Type: Application
    Filed: June 24, 2013
    Publication date: January 2, 2014
    Inventors: Kazunari Watanabe, Mutsunori Koyomogi, Izuru Shikata
  • Patent number: 8616525
    Abstract: The invention relates to a valve for separating product media in pipes of a product-carrying system. The valve comprises a valve housing and a valve body arranged in a valve housing interior. The valve has a drive element which is movable in the axial direction, is connected to the valve body and is intended for moving the valve body. The valve further comprises a sealing diaphragm for sealing a valve housing interior on the drive side. The sealing diaphragm has a radially extending diaphragm body with a radially inner opening through which the drive element reaches. The diaphragm body has a radially outer edge region and a radially inner edge region which surrounds the radially inner opening. The radially outer edge region is clamped radially and the radially inner edge region is clamped axially. The sealing diaphragm is manufactured from a dimensionally stable material which is thermally resistant up to at least approximately 130° C.
    Type: Grant
    Filed: September 17, 2009
    Date of Patent: December 31, 2013
    Assignee: Südmo Holding GmbH
    Inventors: Stephan Franz, Frank Neuhauser
  • Publication number: 20130341550
    Abstract: A two-way valve includes a valve body made of a resilient member and connected to a lower end of a shaft. The valve body is made up from a main body portion having an axial member connected to the shaft, and a thin film skirt portion formed on an outer circumferential side of the main body portion. An outer edge of the skirt portion is sandwiched and gripped between a small diameter part of a housing and a connector of a body. Further, lips that project in a downward direction are formed in a central portion of the main body portion. The lips are seated on a top portion of a partition wall in the body, so that the two-way valve is placed in a valve-closed state.
    Type: Application
    Filed: May 23, 2013
    Publication date: December 26, 2013
    Applicant: SMC KABUSHIKI KAISHA
    Inventors: Yoshihiro FUKANO, Tadashi Uchino, Yasunori Suzuki
  • Publication number: 20130334452
    Abstract: A dosage valve for a fluid product, for example a colorant, comprising an at least partly elastic or elastomer element, having at least a cut in the central part so as to define at least two closed/open cooperating lips, which comprises a sensor element associated with the at least partly elastic element in order to detect at least a closed or open condition of the lips.
    Type: Application
    Filed: December 5, 2011
    Publication date: December 19, 2013
    Applicant: CPS Color Equipment Spa Con nico Socio
    Inventor: Emanuele Morselli
  • Publication number: 20130331715
    Abstract: A flow rate control valve includes a casing provided with an inlet port and an outlet port through which a fluid, the flow rate of which should be controlled, flows in and out, a diaphragm that partitions a space inside the casing into a flow space in which the fluid flows and a working space in which a working medium is present, and a valve body provided on a portion of the diaphragm that opposes the inlet port. The diaphragm is displaced in accordance with a change in the internal pressure of the working space, and the valve body is accordingly moved. This results in a change in the distance between the valve body and the inlet port, and thus the flow rate of the fluid flowing into the flow space through the inlet port is adjusted. Therefore, the flow rate of the fluid flowing out through the outlet port is variably controlled.
    Type: Application
    Filed: April 5, 2012
    Publication date: December 12, 2013
    Applicant: OMRON HEALTHCARE CO., LTD.
    Inventor: Yoshihiko Sano
  • Patent number: 8602052
    Abstract: A diaphragm sealed flow cavity comprises a first body comprising a support surface, a diaphragm comprising an outer portion that is joined by a weld to the first body, a clamped portion, and an inner portion that is movable along an axis, with the clamped portion of the diaphragm being compressed between the bearing surface and the support surface. The diaphragm sealed flow cavity may include a cylindrical body having a crimped portion for joining the cylindrical body to the first body. The diaphragm sealed flow cavity may also include a member that applies a live load to the clamped portion of the diaphragm. In the exemplary embodiments, the diaphragm sealed flow cavity may be realized as part of a diaphragm flow control valve having a valve body, diaphragm and a housing.
    Type: Grant
    Filed: June 21, 2011
    Date of Patent: December 10, 2013
    Assignee: Swagelok Company
    Inventors: Branden W. Keeper, William H. Glime, III, Daniel E. Zeiler
  • Patent number: 8602386
    Abstract: A valve having a membrane for controlling flow through the valve, the membrane having open and closed positions. An element urges the membrane to the closed position, and a vacuum pressure at one end of the valve may overcome the urging of the element, thereby moving the membrane to the open position. An actuator is provided for easing or initiating the movement of the membrane. In some embodiments, the valve may take the form of a valve assembly for use in a variety of applications, for example, a valve assembly for relieving a vacuum pressure wherein the assembly includes intake and exhaust ends, a membrane for controlling flow through the assembly, a spring providing a closing bias to the membrane that the vacuum pressure may overcome to move the membrane, and an actuator for initiating the movement of the membrane.
    Type: Grant
    Filed: December 21, 2007
    Date of Patent: December 10, 2013
    Assignee: S.C. Johnson & Son, Inc.
    Inventors: James Russell Hornsby, Marcellus Rambo Benson, James Augustus Keefe, III, Joseph Lee McGowan
  • Publication number: 20130309619
    Abstract: The present invention relates to a gas combustor, comprising: a gas intake valve, the bottom of a valve tube axially formed in a valve member is installed with a filter member, a first spring is installed above the filter member and inside the valve tube, the top of a valve pin is protruded out of a tube opening formed at and communicated with the top of the valve tube, a plug outwardly protruded at the bottom of the valve pin is abutted against the first spring, the plug is enabled to seal the tube opening through the first spring being stretched, and when the top of the valve pin is axially subject to a force, the valve pin and the plug are downwardly moved, the first spring is compressed thereby enabling the tube opening to be opened.
    Type: Application
    Filed: March 18, 2013
    Publication date: November 21, 2013
    Inventor: Chin-Lin TSAI
  • Patent number: 8573247
    Abstract: A highly versatile flow-rate controller that is easy to handle and a regulator unit and a valve unit used for the same are provided. The flow-rate controller includes a regulator unit having a regulator and a first pressure sensor, a valve unit having a second pressure sensor and a flow-rate control valve, and an orifice unit that is connected to the regulator unit and the valve unit in a detachable manner and that has a fluid channel and an orifice that connect to the regulator unit and the valve unit.
    Type: Grant
    Filed: July 24, 2006
    Date of Patent: November 5, 2013
    Assignee: Surpass Industry Co., Ltd.
    Inventors: Yoshihiro Ushigusa, Hiroki Igarashi, Masahiro Hasunuma
  • Publication number: 20130271538
    Abstract: An integrated multifunctional valve device includes a surface member having a first port and a second port formed therein, a flexible disk member having a central portion and a surrounding portion, a first seat member extending outward from the surface member and coupled to the surrounding portion of the flexible disk member, a second seat member extending outward from the surface member and surrounded by the first seat member. The central portion is movable between an open port position to establish fluid communication between the respective ports and a close port position to stop the fluid communication between the respective ports. The second seat member is configured to selectively receive the central portion of the flexible disk member corresponding to the close port position. The integrated multifunctional valve device also includes an actuator member configured to selectively move the central portion of the flexible disk member into the open port position and the close port position.
    Type: Application
    Filed: January 7, 2011
    Publication date: October 17, 2013
    Inventors: Patrick V. Boyd, David Olsen, Milo A. Undlin
  • Publication number: 20130233395
    Abstract: An apparatus for controlling liquid flow wherein the apparatus comprises an orifice and an adjacent flexible diaphragm separated from each other by a gap through which a liquid flows. The diaphragm is sufficiently flexible to vary the gap thereby controlling the rate of liquid flowing through the orifice or to provide a positive liquid shutoff of liquid flowing through the orifice. A method for controlling liquid flow through the apparatus comprises flexing said diaphragm to vary a size of the gap to control the rate of liquid flowing through the orifice or to provide a positive liquid shutoff of liquid from flowing through the orifice.
    Type: Application
    Filed: March 5, 2013
    Publication date: September 12, 2013
    Inventors: Thuc M. Dinh, Benjamin Y.H. Liu, Yamin Ma
  • Patent number: 8528591
    Abstract: A micro valve includes a first valve chamber and a second valve chamber as well as a closing element, which is adjustable between an opening position, in which the valve chambers are connected to each other, and a closing position in which the valve chambers are separated from each other. A reference chamber is provided, which is delimited by the closing element.
    Type: Grant
    Filed: July 4, 2008
    Date of Patent: September 10, 2013
    Assignee: Robert Bosch GmbH
    Inventors: Tjalf Pirk, Michael Stumber
  • Patent number: 8522813
    Abstract: A sampling port includes a housing and a valve assembly. The housing includes an internal passage through which fluids flow and defines a port in fluid communication with the internal passage. The valve assembly is mountable adjacent the port of the housing and includes a bezel having a channel extending therethrough and a bladder mounted adjacent the bezel. The bladder includes a bladder base and a bladder stem depending from the bladder base which is at least partially received within the channel of the bezel. The bladder stem is movable within the channel of the bezel between a first position substantially preventing fluid flow through the valve assembly and a second position in which a fluid path is established through the valve assembly and in fluid communication with the internal passage of the housing.
    Type: Grant
    Filed: September 8, 2010
    Date of Patent: September 3, 2013
    Assignee: Covidien LP
    Inventor: Geoffrey R. McElroy
  • Publication number: 20130220461
    Abstract: A diaphragm device comprising: a supporting member; a flexible membrane that is supported by the supporting member; and a housing that accommodates the flexible membrane and the supporting member, and wherein the flexible membrane air-tightly separates a first chamber and a second chamber connected to the outside through a through-hole formed in a membrane supporting portion of the supporting member, inside the housing, wherein an avoidance recessed portion to avoid interference with an opening edge of the through-hole is formed at a position corresponding to the through-hole in the flexible membrane, wherein the avoidance recessed portion is provided at a thick portion thicker than the other portion of the flexible membrane, and the thick portion protrudes toward the first chamber.
    Type: Application
    Filed: February 22, 2013
    Publication date: August 29, 2013
    Applicants: Denso Corporation, Advics Co., Ltd.
    Inventors: Advics Co., Ltd., Denso Corporation