Bellows Patents (Class 251/335.3)
  • Patent number: 10391291
    Abstract: A needle shell is inserted through skin with a needle insert within the needle shell occluding an insertion end of the needle shell. The needle insert is withdrawn from the needle shell and an implant tube is inserted into the needle shell and below the skin, wherein the implant tube is slid within the needle shell while the needle shell is below the surface of the tissue. Interior surfaces of the implant tube contact and guide sliding movement of the implant. An implant insertion rod is inserted into the needle shell to implant an implant below the skin.
    Type: Grant
    Filed: October 2, 2012
    Date of Patent: August 27, 2019
    Inventors: Robert F. Wallace, Matthew Q. Shaw
  • Patent number: 10234053
    Abstract: A system for controlling fluid flow includes a fluid inlet operable to receive a fluid flow, a fluid outlet operable to output the fluid flow, a diaphragm seat, a diaphragm operable to restrict the fluid flow between the fluid inlet and the fluid outlet by moving between an open position where the first diaphragm does not contact the diaphragm seat to a closed position where the diaphragm contacts the diaphragm seat, a spring operable to move the first diaphragm between the open position and the closed position, and a pressurized air inlet operable to receive pressurized air to move the first diaphragm between the open position and the closed position.
    Type: Grant
    Filed: October 23, 2015
    Date of Patent: March 19, 2019
    Assignee: Texas Transland LLC
    Inventor: Calvin L. Kroes
  • Patent number: 10107350
    Abstract: A folding bellows for protecting an interior of the folding bellows effectively from environmental influences and managing pressure changes in the interior. The folding bellows having a gas-tight casing including a plurality of folds in an axial direction. Opposed front faces adjoining the casing. The front faces closed in a gas-tight manner. The casing having a wide region and a narrow region each formed of a plurality of folds with the outer cross-sectional surface of the folds in the wide region being larger than those in the narrow region. The folding bellows in one embodiment used with a motor vehicle subassembly.
    Type: Grant
    Filed: November 11, 2016
    Date of Patent: October 23, 2018
    Assignee: Ford Global Technologies, LLC
    Inventors: Ivica Papic, Achim Lordick
  • Patent number: 10077849
    Abstract: A capacity control valve includes: a pressure-sensitive body positioned in a third valve chamber; an adapter provided on the free end of the pressure sensitive body having a circular seating surface; a third valve part that moves integrally with a valve element in the third valve chamber and has a circular engagement surface that opens/closes intake-side passages by engaging with and separating from the seating surface of the adapter. The valve element is located between the first valve chamber and the second valve chamber, and has an outer circumferential face part slidably movable relative to an inner circumferential face of the valve body, with plural threads of screw grooves are formed on the outer circumferential face part.
    Type: Grant
    Filed: January 16, 2018
    Date of Patent: September 18, 2018
    Assignee: EAGLE INDUSTRY CO., LTD.
    Inventors: Toshiaki Iwa, Yoshihiro Ogawa, Kohei Fukudome, Kenji Moriwaki
  • Patent number: 10046481
    Abstract: A component feed nozzle includes a housing, which has a component inlet and a component outlet, a piston-shaped closing body, which is slidably supported in the housing and which can be moved back and forth axially. The component outlet is closed by the front end of the closing body in a first position and the component outlet is released or opened in a second position. The component feed nozzle has a membrane seal, which is fastened to the rear end of the closing body and to the housing in such a way that the closing body is completely on one face of the membrane seal. The housing and/or the closing body are designed in such a way that the component reaches all surfaces of the closing body and thus the component pressure is applied to the complete effective surface of the membrane.
    Type: Grant
    Filed: June 28, 2013
    Date of Patent: August 14, 2018
    Assignee: KRAUSSMAFFEI TECHNOLGIES GMBH
    Inventors: Ralf Moser, Josef Renkl
  • Patent number: 9791066
    Abstract: A valve for controlling fluid flow from an inlet of a pipe fitting to at least one outlet of the pipe fitting at an angle to the inlet. The pipe fitting includes an inner collapsible bellows fixed at a position opposite the inlet. The bellows has a support annulus at the other end adjacent the inlet, whereby, in a closed position, the bellows prevents fluid flow from the inlet to the at least one outlet as the fluid is trapped within the bellows. In an open position, the fluid can flow from the inlet to the at least one outlet when the bellows is collapsed.
    Type: Grant
    Filed: March 7, 2017
    Date of Patent: October 17, 2017
    Assignee: RUBICON RESEARCH PTY LTD
    Inventors: David John Aughton, Marius Catrina
  • Patent number: 9657858
    Abstract: A non-pyrotechnic, normally-closed, zero-leak valve is a replacement for the pyrovalve used for both in-space and launch vehicle applications. The valve utilizes a magnetostrictive alloy for actuation, rather than pyrotechnic charges. The alloy, such as Terfenol-D, experiences magnetostriction, i.e. a gross elongation, when exposed to a magnetic field. This elongation fractures a parent metal seal, allowing fluid flow through the valve. The required magnetic field is generated by redundant coils that are isolated from the working fluid.
    Type: Grant
    Filed: September 28, 2015
    Date of Patent: May 23, 2017
    Assignee: The United States of America as represented by the Administrator of the National Aeronautics and Space Administration
    Inventors: Daniel J. Ramspacher, James A. Richard
  • Patent number: 9528614
    Abstract: A vacuum valve closes a flow path in a gas-tight manner using a linear movement and includes a closure member, a first sealing surface of the valve housing that encloses the opening, and a corresponding second sealing surface of the closure member. In the closed position, the second sealing surface is in sealing contact with the first sealing surface. In the region between the opening and the first sealing surface, the valve housing includes a first sloped surface that encloses the opening, and the closure member includes a corresponding, parallel second sloped surface. The sloped surfaces, which have a sloping angle between 3 and 15 degrees relative to the geometric adjustment axis, are located such that, in the closed position of the closure member, the second sloped surface is arranged in a parallel position opposite the first sloped surface at a distance of 0 and 0.6 mm.
    Type: Grant
    Filed: July 11, 2012
    Date of Patent: December 27, 2016
    Assignee: VAT HOLDING AG
    Inventors: Friedrich Geiser, Anton Neumeir, Berhard Duelli, Thomas Blecha, Karlheinz Summer
  • Publication number: 20150060708
    Abstract: A valve having a valve body with a valve cavity that receives an axially extensible member, for example, a bellows. An adapter has a diameter that is less than the diameter of the valve cavity and greater than the diameter of the extensible member, so that the adapter is disposed between the valve body and the extensible member. The adapter forms a valve body compression seal and a compression seal for the extensible member. Use of the adapter allows a common valve body to be used with different sized bellows of different lengths and diameters as needed, as well as facilitates easy installation and replacement of the bellows.
    Type: Application
    Filed: August 29, 2014
    Publication date: March 5, 2015
    Inventor: William H. Glime, III
  • Patent number: 8955825
    Abstract: A valve includes a plug mounted to a lower end of a valve rod for opening or closing a fluid passage in the body. The valve rod extends through a cap and a stretchable jacket. The stretchable jacket includes first and second ends and a deformation section between the first and second ends. The first end of the stretchable jacket is fixed to the cap. The second end of the stretchable jacket is fixed to the valve rod. A stop is located at the deformation section, dividing the stretchable jacket into first and second stretchable sections. A pull rod is fixed to the valve rod or the cap and slideable relative to the stop. First and second positioning members are mounted on the pull rod to limit travel of the pull rod by contacting with the stop, avoiding over stretching and undesired compression of the first or second stretchable section.
    Type: Grant
    Filed: March 18, 2013
    Date of Patent: February 17, 2015
    Inventor: Wan-Rong Kung
  • Publication number: 20150034191
    Abstract: Valves for regulating the flow of fluids where high containment of the fluid is required for environmental and/or regulatory compliance.
    Type: Application
    Filed: January 24, 2013
    Publication date: February 5, 2015
    Inventor: Peter B. Hutton
  • Patent number: 8905334
    Abstract: A stroke translator or an injector having a solid-state actuator for generating a stroke and a hydraulic system for the hydraulic transmission of the stroke of the solid-state actuator to a control element such as a jet needle of a valve. The hydraulic system has hydraulic volumes hermetically sealed to the outside by metal bellows and constitute a hydraulic bearing with compensation for play. The advantages over known hydraulic levers are such that a complete metal seal is provided, and that a lower-wear design can be realized. Furthermore, a modular structure can be produced.
    Type: Grant
    Filed: February 25, 2010
    Date of Patent: December 9, 2014
    Assignee: Siemens Aktiengesellschaft
    Inventors: Georg Bachmaier, Gerit Ebelsberger, Bernhard Fischer, Matthias Gerlich, Michael Höge, Wolfgang Zöls
  • Publication number: 20140239216
    Abstract: The invention discloses a valve including a valve body with a valve inlet and a valve outlet. The valve body is joined to a bellows between the valve inlet and the valve outlet, the bellows having an annular side wall formed in a concertina formation with inner and outer corners wherein the side wall has a non-constant thickness along its length, the side wall being thicker at the outer corners and thinner at the inner corners. The bellows further has an annular mounting base for attachment to the valve body. The valve body has an annular flange from which extends an upstanding collar, wherein the mounting base is clamped between the valve body and the collar. The mounting base has a width being wider than a gap formed between the valve body and the collar so that the mounting base is compressed when clamped between the valve body and the collar.
    Type: Application
    Filed: February 22, 2013
    Publication date: August 28, 2014
    Applicant: Filmatic Packaging Systems (Pty) Ltd
    Inventors: Daniel Scholtz Beyers, Johannes Albertus Loubser Beyers
  • Patent number: 8814131
    Abstract: A gas control unit for a boiler includes a hollow housing; a solenoid; a rod; opening and shutting means that is disposed at the lower end of the rod to open and shut a gas outlet; and a spring between the housing and the opening and shutting means so as to elastically urge it downward. A coupling member is formed at the lower end of the rod and a coupling groove into which the coupling member is inserted is formed in the opening and shutting means so as to allow movement. The opening and shutting means is coupled to the rod through the use of the coupling member and the coupling groove, the opening and shutting means can move within a predetermined range about the coupling member with an application of an external force.
    Type: Grant
    Filed: November 29, 2011
    Date of Patent: August 26, 2014
    Assignee: Unick Corporation
    Inventors: Chang-Hoon Lee, Kuk-Chan Moon, Seong-Jun Kim, Kang-Woo Park
  • Patent number: 8807531
    Abstract: A bellows is disposed to separate a main flow path that is opened or closed by a valve member coming into contact with or moving away from a valve seat from a driving part for driving the valve member via a rod so as to surround the rod. The bellows is formed by providing ring-shaped valley portions swelling inward of a metal pipe and ring-shaped peak portions swelling outward of the metal pipe alternately and continuously in a peripheral wall of the metal pipe in the axial direction of the metal pipe. Valley R/peak R, which is the ratio of valley R to peak R, is in the range of 1.15 to 1.70, where valley R is the radius of curvature of the valley portions in cross section, and peak R is the radius of curvature of the peak portions in cross section.
    Type: Grant
    Filed: April 24, 2012
    Date of Patent: August 19, 2014
    Assignee: SMC Corporation
    Inventor: Ikuo Kanzaka
  • Patent number: 8800959
    Abstract: The present invention provides a flow-rate control valve that allows for manufacturing cost reduction and has a compact size with improved ease of maintenance. The flow-rate control valve includes a lower casing provided with a channel that leads a liquid and a fluid and with a valve seat, a valve body that controls, in conjunction with the valve seat, the flow rate of the liquid and the fluid that pass through the channel, a reciprocating drive part that moves the valve body closer to or away from the valve seat, and an upper casing that houses the reciprocating drive part.
    Type: Grant
    Filed: July 1, 2009
    Date of Patent: August 12, 2014
    Assignee: Surpass Industry Co., Ltd.
    Inventor: Masahiro Hasunuma
  • Patent number: 8714523
    Abstract: Provided is a valve for vacuum process, including: a first valve body having an inlet port and an outlet port; a sealing unit configured to move forward to and backward from the inlet port so as to have a closed position and an open position; a shaft covered with a bellows, and configured to move the sealing unit between the closed position and the open position; a cover for shielding the bellows from corrosive gas when the sealing unit is in the open position; and a cover guide unit configured to guide the cover to move along the shaft.
    Type: Grant
    Filed: September 27, 2011
    Date of Patent: May 6, 2014
    Inventor: Dong-Min Lee
  • Patent number: 8702057
    Abstract: A bellows seal assembly and bellows valve equipped therewith. The bellows seal assembly includes an internal bellows, an external bellows, a hollow upper bellows seat, a first hollow lower bellows seat, and a second hollow lower bellows seat. One end of the internal bellows is fixed to the upper bellows seat and the other end is fixed to the second lower bellows seat. One end of the external bellows is fixed to the upper bellows seat and the other end is fixed to the first lower bellows seat. The external bellows is sheathed around the internal bellows. The first lower bellows seat is sheathed around the second lower bellows seat. The bellows valve includes the bellows seal assembly.
    Type: Grant
    Filed: May 7, 2012
    Date of Patent: April 22, 2014
    Assignee: Zhejiang Wanlong Machinery Co., Ltd.
    Inventor: Xingyan Cheng
  • Patent number: 8701779
    Abstract: The invention relates to a valve device that is used in oil and gas wells. The valve device has an external housing (1), where at least one inlet (4) in the housing (1) is connected to an outlet (5) through a longitudinal bore in the housing longitudinal direction. Between the valve device's inlet and outlet there is mounted a valve seat (2) in the bore, where a valve body (3) shuts off the connection between the inlet and outlet. The valve body's position is controlled by a support (20), connected with a pressure-sensitive bellows device (6) comprising an upper and a lower bellows element (7, 71). When the lower bellows element is compressed in the valve device's axial direction, the compression will cause the two bellows elements'impact elements to be moved relative each other in order to lift the valve body out of abutment with the valve seat.
    Type: Grant
    Filed: March 13, 2009
    Date of Patent: April 22, 2014
    Assignee: Petroleum Technology Company AS
    Inventors: Erling Kleppa, Øyvind Stokka, Ole Sevheim
  • Patent number: 8511333
    Abstract: A double pipe apparatus that includes an outer pipe and an inner pipe inserted into the outer pipe, and regulates a flow of a gas flowing through the double pipe apparatus. The double pipe apparatus includes a flow regulating valve, a valve stem which which penetrates the outer pipe and the inner pipe, and fluid leakage preventing parts including a bellows which is provided between the outer pipe and the inner pipe and which prevents the gas from leaking outside the outer pipe. One end of the bellows is attached to an inner wall of the outer pipe, and the other end of the bellows is attached to a flange formed on the valve stem, so that the gas flowing through the inner pipe is prevented from leaking outside the outer pipe.
    Type: Grant
    Filed: March 27, 2009
    Date of Patent: August 20, 2013
    Assignees: Mitsubishi Heavy Industries, Ltd., Pebble Bed Modular Reactor (Pty) Limited
    Inventors: Noriyuki Takeda, Shoichi Doi
  • Patent number: 8500091
    Abstract: A valve stem is journaled in a journaling portion of a valve box in an upwardly and downwardly movable manner; a packing is interposed between the journaling portion and the valve stem; a packing gland is arranged above the packing; a yoke sleeve is provided above the packing gland; and a valve seat in the valve box is opened and closed with a valve element provided at the lower end of the valve stem by rotating a handle fitted into the yoke sleeve to move the valve stem upward and downward. A protective tube formed integrally with the packing gland is provided between the packing gland and the yoke sleeve around the valve stem. A guide projection with which the inner periphery of the upper end of the protective tube comes into contact is provided on the lower surface of the yoke sleeve.
    Type: Grant
    Filed: December 3, 2010
    Date of Patent: August 6, 2013
    Assignee: TLV Co., Ltd.
    Inventor: Tadashi Oike
  • Patent number: 8480014
    Abstract: A fluid injection valve having an inlet which is set up to receive fluid from a supply line and is connected to a chamber, a fluid outlet which is connected to the chamber, is set up to allow fluid to flow out of the fluid injection valve and has a valve arrangement having a valve seat and a valve element, wherein the valve element is set up to perform opening and closing movements relative to the valve seat, a linear actuator which is set up to move the valve element relative to the valve seat, and a spring arrangement which exerts on the valve element a force which is dependent on the fluid pressure prevailing in the chamber.
    Type: Grant
    Filed: December 6, 2007
    Date of Patent: July 9, 2013
    Assignee: Compact Dynamics GmbH
    Inventors: Andreas Gruendl, Bernhard Hoffmann, Friedrich Mörtl
  • Patent number: 8443830
    Abstract: A heater built-in valve usable even under a high-temperature condition beyond 200° C. is provided. Piston driving means 7 has an upper compressed-air introducing chamber 24 for moving a piston 6 downward, and a lower compressed-air introducing chamber 25 for moving the piston 6 upward. Piston sealing means 8 has an upper bellows 29 that seals the upper compressed-air introducing chamber 24, and a lower bellows 30 that seals the lower compressed air introducing chamber 25.
    Type: Grant
    Filed: April 1, 2008
    Date of Patent: May 21, 2013
    Assignee: Fujikin Incorporated
    Inventors: Tsuyoshi Tanikawa, Michio Yamaji, Tadayuki Yakushijin, Hiroshi Fukuchi, Keisuke Ishibashi
  • Patent number: 8297306
    Abstract: A fluid regulator that has excellent flow-rate-control response for not only pressure fluctuations at the primary side but also pressure fluctuations at the secondary side and that realizes highly accurate flow-rate control is provided.
    Type: Grant
    Filed: July 15, 2005
    Date of Patent: October 30, 2012
    Assignee: Surpass Industry Co., Ltd.
    Inventor: Hiroki Igarashi
  • Publication number: 20120217429
    Abstract: A bellows seal assembly and bellows valve equipped therewith. The bellows seal assembly includes an internal bellows, an external bellows, a hollow upper bellows seat, a first hollow lower bellows seat, and a second hollow lower bellows seat. One end of the internal bellows is fixed to the upper bellows seat and the other end is fixed to the second lower bellows seat. One end of the external bellows is fixed to the upper bellows seat and the other end is fixed to the first lower bellows seat. The external bellows is sheathed around the internal bellows. The first lower bellows seat is sheathed around the second lower bellows seat. The bellows valve includes the bellows seal assembly.
    Type: Application
    Filed: May 7, 2012
    Publication date: August 30, 2012
    Applicant: ZHEJIANG WANLONG MACHINERY CO., LTD.
    Inventor: Xingyan CHENG
  • Patent number: 8251345
    Abstract: A suck-back valve having an open/close valve with a suck-back function is provided. The suck-back valve includes a suck-back chamber formed in a valve internal channel of the open/close valve, a piston shaft portion and an open/close pressuring member to apply pressure to a valve piece, bellows that accommodate the piston shaft portion inside and that are connected to the open/close pressuring member at one end and are supported by a casing at the other end, wherein a two-step operation is performed at the time of a closing operation of the valve piece, including a valve closing operation step in which the piston shaft portion moves to the fully closed position of the valve piece, and a suck-back operation step in which the piston shaft portion and the open/close pressuring member further move from the fully closed position of the valve piece to increase the volume of the suck-back chamber.
    Type: Grant
    Filed: August 14, 2009
    Date of Patent: August 28, 2012
    Assignee: Surpass Industry Co., Ltd.
    Inventor: Atsushi Inoue
  • Patent number: 8246006
    Abstract: A valve seal has a sealing lip and a compressible portion. The valve seal is utilized to seal a valve guide and a stem. The valve guide has a height within a predetermined range of heights and the sealing lip sealingly engages the stem. The compressible portion has at least two articulating portions with a hinge portion between the two articulating portions. The compressible portion sealingly engages the valve guide and articulates to accept the valve guide without substantially deforming the lip or interfering with the stem.
    Type: Grant
    Filed: June 1, 2006
    Date of Patent: August 21, 2012
    Assignee: Dana Automotive Systems Group, LLC
    Inventor: Mark A. Leimer
  • Patent number: 8196893
    Abstract: An isolation valve includes a shield that surrounds and protects the valve closure actuator components from exposure to corrosive fluids that flow through the valve when the valve is open.
    Type: Grant
    Filed: August 19, 2008
    Date of Patent: June 12, 2012
    Assignee: MKS Instruments, Inc.
    Inventors: Kevin Grout, Jeffrey D. Kiernan, David Neumeister, Matthew C. Grout
  • Patent number: 8066256
    Abstract: An actuator assembly for actuating a valve includes an extensible bellow having an open end and a closed end, a stem operable to contact the closed end and to actuate a stopper mechanism, and a driver configured to move the bellow. The movement of the bellow effects movement of the stem to actuate the valve. In one embodiment, the driver acts to compress the bellow, the compression causing movement of the stem to open the valve. The bellow may be hermetically sealed to the valve housing, thereby allowing a higher range of fluid pressures.
    Type: Grant
    Filed: February 1, 2008
    Date of Patent: November 29, 2011
    Assignee: Danfoss A/S
    Inventors: Christian Platz, Michael Birkelund
  • Patent number: 8033525
    Abstract: A control valve having an external valve trim adjustor is provided. The control valve comprises a valve shaft comprising a contact member extending in a direction transverse to the valve shaft, a stationary valve cap adapted to receive the valve shaft, an adjustment member coupled to the valve cap, and a stop plate coupled to the contact member and threadedly coupled to the adjustment member, the stop plate positioned at least partially between the adjustment member and the contact member and adapted to position the contact member away from the valve cap in response to manipulation of the adjustment member.
    Type: Grant
    Filed: August 8, 2008
    Date of Patent: October 11, 2011
    Assignee: Honeywell International Inc.
    Inventors: Paul Wingett, Steve Abel, Eric J. Ekstrom
  • Patent number: 7955843
    Abstract: An apparatus and method for an aseptic fluidic interface between bioprocess systems is provided. The apparatus includes an inlet valve, adapted for automatic control, that is coupled to a biofluid source site. A sampling conduit extends from the inlet valve to an outlet valve. The outlet valve is adapted for automatic control and is coupled to a biofluid process site. A trap is at the sampling conduit. A waste valve, adapted for automatic control, is located at a waste conduit extending from the sampling conduit to a waste site. Also included is a wash fluid source that is coupled to at least one of the inlet or outlet valves. In the method, the sample is automatically directed to the biofluid process site by opening the outlet valve, and closing the waste valve. Also included is isolating the biofluid sites by closing the inlet and outlet valves, and opening the waste valve to drain biofluid from the trap to the waste site.
    Type: Grant
    Filed: November 27, 2006
    Date of Patent: June 7, 2011
    Assignee: Groton Biosystems, LLC
    Inventor: George E. Barringer, Jr.
  • Patent number: 7862005
    Abstract: In a flow amount control valve, a rod is inserted through the interior of a housing, and first and second connecting members are connected coaxially to both ends of the rod. A first bellows and a second bellows, each having a bellows portion, are provided on the rod, for preventing leakage of fluid that is introduced into the interior of the housing. In addition, the first bellows and the second bellows are expanded and contracted by displacement of the rod along the axial direction, which is caused by driving an actuator, such that a valve element of the rod approaches and separates with respect to a valve seat, and a gap between the valve element and the valve seat changes so that a flow amount of the fluid is controlled.
    Type: Grant
    Filed: February 5, 2008
    Date of Patent: January 4, 2011
    Assignee: SMC Kabushiki Kaisha
    Inventor: Atsushi Okitsu
  • Patent number: 7862002
    Abstract: To provide a vacuum valve with an improved endurance of a bellows, a vacuum valve comprises: a valve section including a first port, a second port, a valve seat provided between the first and second ports, and a valve element movable into or out of contact with the valve seat; an actuator section including an orifice through which an operating fluid is supplied to the actuator section, and a piston coupled to the valve element, the piston being allowed to operate according to changes of pressure of the operating fluid to apply a driving force to the valve section; and a bellows which can be contracted and elongated as the valve element vertically moves upward and downward. The orifice is designed to have an effective sectional area determined so that an operating speed of the valve element and the piston is controlled to a predetermined speed for preventing damage of the bellows.
    Type: Grant
    Filed: October 10, 2007
    Date of Patent: January 4, 2011
    Assignee: CKD Corporation
    Inventors: Masahiro Naitoh, Michinori Ikuji, Shin Ito, Makoto Iwata
  • Patent number: 7841578
    Abstract: In a vacuum valve composed of a main valve portion that opens and closes a vale seat in a flow path connecting two ports by a valve member, and an operating portion that performs an opening and closing operation for the valve member, the housing of the main valve portion is assembled by joining the two port members with a cylindrically shaped housing main body formed by a squeezing process for a plate material made of metal, or a ring-shaped material made of the metal. In an end portion of the housing, a flange-shaped attaching portion that is bent inward is formed. The operating portion is attached onto the attaching portion via a ring-shaped supporting seat member. A sealing member is sandwiched between a ring-shaped supporting plate and the attaching portion. Both ends of a bellows are respectively connected to the supporting plate and the valve member.
    Type: Grant
    Filed: March 23, 2007
    Date of Patent: November 30, 2010
    Assignee: SMC Corporation
    Inventor: Tsuneo Ishigaki
  • Patent number: 7798467
    Abstract: The high vacuum valve includes a valve housing having a valve flow channel provided in an interior thereof, two ports connected to the valve housing so as to be arranged perpendicular relative to each other, and capable of being communicated with each other through the valve flow channel, a valve member housed in the valve flow channel for opening and closing the valve flow channel, a valve shaft received in the valve flow channel for causing the valve member to perform opening/closing operations, and an assembly comprising a tubular member and a welded bellows and hermetically surrounding a periphery of the valve shaft, the assembly being fixed at one end portion thereof to a rear face of the valve member and fixed at the other end portion thereof to a portion of the interior of the valve housing which is opposed to the rear face of the valve member.
    Type: Grant
    Filed: January 16, 2008
    Date of Patent: September 21, 2010
    Assignee: SMC Corporation
    Inventor: Toyonobu Sakurai
  • Patent number: 7762523
    Abstract: A valve includes a generally elongate pintle; a spacer having a rounded surface that bears against the pintle; a bulbous tip fixed to the spacer; and a hollow, generally cylindrical collar fixed to the pintle, the collar enclosing the spacer and the tip and including an opening through which a portion of the tip extends, the opening in the collar and interior of the collar being of a size such that the tip floats therein.
    Type: Grant
    Filed: September 25, 2007
    Date of Patent: July 27, 2010
    Assignee: United States of America as represented by the Administrator of the National Aeronautics and Space Administration
    Inventor: James T. Smith
  • Patent number: 7708028
    Abstract: A high pressure storage and delivery system having a fail-safe vacuum actuated valve is provided. In particular, through the innovative design of the vacuum actuated check valve, the system can accommodate up to three times the volume of product in similar size cylinders.
    Type: Grant
    Filed: December 8, 2006
    Date of Patent: May 4, 2010
    Assignee: Praxair Technology, Inc.
    Inventors: Lloyd Anthony Brown, Scott Lawrence Cooper, Douglas Charles Heiderman, Brian Michael Meredith
  • Patent number: 7694939
    Abstract: A retaining cylinder is threadedly engaged with a fixed cylinder of a flow rate control valve, by means of a screw section formed on an outer circumferential surface. A fence cover, which is capable of expanding and contracting in the axial direction, is installed between the fixed cylinder and a float rod supported by the retaining cylinder. An upper seal member is provided on the float rod, on the upper side thereof with respect to a valve plug. A lower seal member is provided on the lower side thereof with respect to the valve plug. The upper seal member and the lower seal member have substantially identical diameters. The float rod is displaced under an energizing action of a stepping motor. The flow rate of a fluid is controlled depending on a distance of the valve plug with respect to a valve seat.
    Type: Grant
    Filed: August 25, 2006
    Date of Patent: April 13, 2010
    Assignee: SMC Kabushiki Kaisha
    Inventor: Atsushi Okitsu
  • Publication number: 20090194727
    Abstract: An actuator assembly for actuating a valve includes an extensible bellow having an open end and a closed end, a stem operable to contact the closed end and to actuate a stopper mechanism, and a driver configured to move the bellow. The movement of the bellow effects movement of the stem to actuate the valve. In one embodiment, the driver acts to compress the bellow, the compression causing movement of the stem to open the valve. The bellow may be hermetically sealed to the valve housing, thereby allowing a higher range of fluid pressures.
    Type: Application
    Filed: February 1, 2008
    Publication date: August 6, 2009
    Applicant: Danfoss A/S
    Inventors: Christian Platz, Michael Birkelund
  • Publication number: 20090194728
    Abstract: A Wide-body Valve Having an Internalized Actuator is disclosed. The preferred valve provides exceptional conductance while also providing a compact valve and actuator package. The valve incorporates a geometry wherein the internal diameter of the valve is approximately 180% of the diameter of the valve's port. Furthermore, the stroke of the valve is preferably 30% or more of port diameter. Also, the valve actuator housing is designed to cooperate with the valve body housing such that the actuator housing is encapsulated within the valve body housing such that the valve part count and valve part volume is reduced over conventional valves.
    Type: Application
    Filed: February 4, 2009
    Publication date: August 6, 2009
    Inventors: Evan Pickett, Randy Regennitter, Sean Casarotti, Thomas Deany
  • Patent number: 7461829
    Abstract: The invention relates to a seal to be used as a valve stem seal in a valve for controlling flows containing solid material such as slurry flows with an actuator. The seal is positioned outside of the valve body so that the inside of the seal and the valve body form an essentially closed space for the flow to be controlled.
    Type: Grant
    Filed: June 3, 2004
    Date of Patent: December 9, 2008
    Assignee: Outotec Ojy
    Inventor: Richard Rule
  • Patent number: 7458531
    Abstract: A fuel injection valve includes a valve body having a valve seat, a valve element adapted to sit on and leave a valve seat, a nozzle hole for the injection of fuel, and an electromagnetic drive section. A holding member surrounds and holds, on one end side thereof, at least a partial area of an opposite-to-nozzle-hole-side end face portion of the valve element. The holding member surrounds and holds, on an opposite end side thereof, a predetermined surface area of a constant position holding portion without being influenced by the pressure of fuel flowing through a fuel passage of the valve body and irrespective of movement of the valve element. An internal area of the holding member is shut off so as not to be influenced by the pressure of fuel present around the internal area.
    Type: Grant
    Filed: June 7, 2006
    Date of Patent: December 2, 2008
    Assignee: Denso Corporation
    Inventors: Kouichi Mochizuki, Kimitaka Saito, Hiroaki Nagatomo
  • Patent number: 7445194
    Abstract: An idle air control valve for a vehicle includes a housing (21), a motor (32) disposed in the housing, a shaft (29) associated with the motor, and a bellows assembly (30) including a bellows structure (10) having a first end defining a base (14), a second, opened end (16), and a bellows (18) between the first and second ends. An annular rim member (28) is associated with the second opened end. A pintle (24) has surfaces defining an annular groove (26) therein. The annular rim member (28) is received, in press-fit engagement, in the annular groove (26). The base (14) is in press-fit engagement with a recess (22) in the housing and the pintle (24) is coupled with an end of the shaft, such that the bellows structure together with the pintle surround the shaft and provide a barrier substantially preventing contaminants from entering the motor.
    Type: Grant
    Filed: September 18, 2007
    Date of Patent: November 4, 2008
    Assignee: Continental Automotive Canada, Inc.
    Inventors: Craig Andrew Weldon, Albin Lootvoet
  • Publication number: 20080191158
    Abstract: In a flow amount control valve, a rod is inserted through the interior of a housing, and first and second connecting members are connected coaxially to both ends of the rod. A first bellows and a second bellows, each having a bellows portion, are provided on the rod, for preventing leakage of fluid that is introduced into the interior of the housing. In addition, the first bellows and the second bellows are expanded and contracted by displacement of the rod along the axial direction, which is caused by driving an actuator, such that a valve element of the rod approaches and separates with respect to a valve seat, and a gap between the valve element and the valve seat changes so that a flow amount of the fluid is controlled.
    Type: Application
    Filed: February 5, 2008
    Publication date: August 14, 2008
    Applicant: SMC Kabushiki Kaisha
    Inventor: Atsushi Okitsu
  • Publication number: 20080179561
    Abstract: A closing device for a vacuum user system or vacuum toilet system of an aircraft that makes it possible to quickly open and close a pipe connection piece in a vacuum user system or in a vacuum toilet system of an aircraft. The closing device comprises a cover; a closing element that can be inserted into the pipe connection piece and is connected to the cover by a spacer and is designed such that it substantially fully covers a cross section of the pipe connection piece; a sealing bellows located between the cover and the closing element and that at least partly encloses the spacer, wherein the sealing bellows comprises a sealing face; and an element that is movable in relation to the cover, which element is movable from a first position to a second position, wherein the movable element engages the sealing bellows such that the sealing face of the sealing bellows in the second position has a greater extension in a plane across the spacer than it does in the first position.
    Type: Application
    Filed: January 15, 2008
    Publication date: July 31, 2008
    Applicant: Airbus Deutschland GmbH
    Inventors: Wilhelm Lutzer, Marc Scheel
  • Publication number: 20080173842
    Abstract: The high vacuum valve includes a valve housing having a valve flow channel provided in an interior thereof, two ports connected to the valve housing so as to be arranged perpendicular relative to each other, and capable of being communicated with each other through the valve flow channel, a valve member housed in the valve flow channel for opening and closing the valve flow channel, a valve shaft received in the valve flow channel for causing the valve member to perform opening/closing operations, and an assembly comprising a tubular member and a welded bellows and hermetically surrounding a periphery of the valve shaft, the assembly being fixed at one end portion thereof to a rear face of the valve member and fixed at the other end portion thereof to a portion of the interior of the valve housing which is opposed to the rear face of the valve member.
    Type: Application
    Filed: January 16, 2008
    Publication date: July 24, 2008
    Applicant: SMC Corporation
    Inventor: Toyonobu Sakurai
  • Publication number: 20080111095
    Abstract: To provide a vacuum valve with an improved endurance of a bellows, a vacuum valve comprises: a valve section including a first port, a second port, a valve seat provided between the first and second ports, and a valve element movable into or out of contact with the valve seat; an actuator section including an orifice through which an operating fluid is supplied to the actuator section, and a piston coupled to the valve element, the piston being allowed to operate according to changes of pressure of the operating fluid to apply a driving force to the valve section; and a bellows which can be contracted and elongated as the valve element vertically moves upward and downward. The orifice is designed to have an effective sectional area determined so that an operating speed of the valve element and the piston is controlled to a predetermined speed for preventing damage of the bellows.
    Type: Application
    Filed: October 10, 2007
    Publication date: May 15, 2008
    Applicant: CKD CORPORATION
    Inventors: Masahiro Naitoh, Michinori Ikuji, Shin Ito, Makoto Iwata
  • Patent number: 7357373
    Abstract: A two-port valve includes a valve part configured to open and close a valve seat in a liquid flow path connecting a first port and a second port by a valve member and a pilot-type valve driving mechanism to open and close the valve member through a rod. The rod passes through an insertion hole of a plate facing on the liquid flow path in a sealed state. The valve member is provided to the tip part of the rod and also a cap which abuts against the periphery of the insertion hole of the plate when the valve member opens the valve seat and prevents intrusion of foreign material in the liquid into the insertion hole is provided to the rod.
    Type: Grant
    Filed: June 5, 2006
    Date of Patent: April 15, 2008
    Assignee: SMC Corporation
    Inventors: Bunya Hayashi, Shinji Miyazoe, Shinichi Yoshimura
  • Publication number: 20080066717
    Abstract: An idle air control valve for a vehicle includes a housing (21), a motor (32) disposed in the housing, a shaft (29) associated with the motor, and a bellows assembly (30) including a bellows structure (10) having a first end defining a base (14), a second, opened end (16), and a bellows (18) between the first and second ends. An annular rim member (28) is associated with the second opened end. A pintle (24) has surfaces defining an annular groove (26) therein. The annular rim member (28) is received, in press-fit engagement, in the annular groove (26). The base (14) is in press-fit engagement with a recess (22) in the housing and the pintle (24) is coupled with an end of the shaft, such that the bellows structure together with the pintle surround the shaft and provide a barrier substantially preventing contaminants from entering the motor.
    Type: Application
    Filed: September 18, 2007
    Publication date: March 20, 2008
    Applicant: Siemens VDO Automotive Canada Inc.
    Inventors: Craig Andrew Weldon, Albin Lootvoet
  • Patent number: 7270311
    Abstract: A pendulum gate valve includes a housing defining a valve chamber, the valve housing having a vacuum-chamber opening in a front wall and an access opening in a rear wall aligned with the vacuum-chamber opening and defining a through-hole extending from one side of the valve housing to the other side for providing access to the vacuum chamber, a carriage assembly pivotally mounted within the valve housing and moveable between a open position remote from the openings and a closed position between the openings, a valve plate reciprocally mounted on one side of the carriage assembly and movable between an unsealed position spaced from the vacuum-chamber opening and a sealed position sealing the vacuum-chamber opening, a valve-plate actuator carried on the carriage assembly for moving the valve gate between the unsealed and sealed positions, a retractable support reciprocally mounted on another side of the carriage assembly movable between a retracted position spaced from the access opening and an extended positio
    Type: Grant
    Filed: July 13, 2004
    Date of Patent: September 18, 2007
    Inventor: Arthur J. Brenes