Inflatable Patents (Class 277/646)
  • Patent number: 10363713
    Abstract: A vulcanizing bladder 3 comprises a first bladder 11 configured to contact with an inner circumferential surface of an unvulcanized tire (T) and a second bladder 12 arranged inside the first bladder 11. A first fluid G1 is to be supplied between the first bladder 11 and the second bladder 12, and a second fluid G2 is to be supplied to an inside of the second bladder 12. At least one of an inner circumferential surface 11s of the first bladder 11 and an outer circumferential surface 12s of the second bladder 12 is provided with a guide groove 31 extending in a tire axial direction through which the first fluid G1 can pass.
    Type: Grant
    Filed: September 5, 2017
    Date of Patent: July 30, 2019
    Assignee: SUMITOMO RUBBER INDUSTRIES, LTD.
    Inventor: Takashi Tanaka
  • Patent number: 10000271
    Abstract: A door construction for an airborne vehicle includes a door, a door frame, with the shape of door frame forming a gap between the door and the door frame in the outer surface of the door and the door frame when the door is closed, and a gap sealing device comprising an inflatable tube positioned in the gap with at least one tube inlet, the inflatable tube being configured to be inflated through the at least one tube inlet and to at least partially seal the gap between the door and the door frame when inflated.
    Type: Grant
    Filed: January 28, 2015
    Date of Patent: June 19, 2018
    Assignee: Airbus Operations GmbH
    Inventors: Andreas Poppe, Hermann Benthien
  • Patent number: 9988155
    Abstract: The present disclosure is applicable to all vehicles having an engine mounted therein. In one embodiment, an aft mount system for a gas turbine engine is disclosed. The aft mount system includes a vehicle chassis and at least one flexible mounting member disposed within the vehicle chassis, wherein when a gas turbine engine is received within the vehicle chassis, an exhaust portion of the gas turbine engine is substantially mounted within the vehicle chassis through engagement with the at least one flexible mounting member.
    Type: Grant
    Filed: February 6, 2014
    Date of Patent: June 5, 2018
    Assignee: UNITED TECHNOLOGIES CORPORATION
    Inventor: Eric J. Alexander
  • Patent number: 9151104
    Abstract: The present invention is a wide channel door frame cooperating with a wide width knife edge of a door and latching mechanism: to accommodate a gap between finger stock seals when the wide knife edge door is in the open position, to provide electrical connectivity between the door and door frame when the wide knife edge door is received into the wide channel door frame in the closed position, to accommodate ease of manufacturing a straight channel, to accommodate ease of cleaning the channel after installation of the finger stock seals, and to accommodate ease of closing/latching and opening/delatching the door. An alternative embodiment includes a third strip of beryllium copper finger stock seals attached to the base of the channel for increased electrical conductivity or the addition of weather seals for exterior applications. Wide channels and knife edges can be made of desirable material, for example 304 stainless steel.
    Type: Grant
    Filed: September 3, 2013
    Date of Patent: October 6, 2015
    Assignee: Gaven Industries, Inc.
    Inventor: John J. Gaviglia
  • Patent number: 9000296
    Abstract: An electronics frame for a wired pipe drill string, including a housing arranged to be disposed within the wired pipe drill string. The housing includes a chamber formed therein and one or more electronic components disposed in the chamber. A shape memory element is disposed in the chamber. The shape memory element is transitionable in response to a transition stimulus between a first shape permitting positioning within the chamber and a second shape sealingly engagable with the housing to isolate the one or more electronic components from fluid. A method of isolating an electronic component is also included.
    Type: Grant
    Filed: June 21, 2013
    Date of Patent: April 7, 2015
    Assignee: Baker Hughes Incorporated
    Inventors: Stephan Mueller, Ingo Roders, Rene Schulz, Robert Buda, Henning Rahn, Detlev Benedict
  • Publication number: 20150090007
    Abstract: A method is provided for detecting leaks in the wing of an aircraft prior to the fitting of the wing to the rest of the aircraft. A wing sealing assembly for sealing the wing of an aircraft so that the wing may be leak-tested is also described.
    Type: Application
    Filed: March 15, 2013
    Publication date: April 2, 2015
    Applicant: Airbus Operations Limited
    Inventors: Michael Redman, David Tomlinson, Richard Waring
  • Patent number: 8936249
    Abstract: An increased resilience seal utilizing a sealed gas filled inner chamber in a bellows spring that functions as both a mechanical spring and a gas spring to provide a more constant level of separation force between two face plates to provide a seal between two mechanical components such as those found in an aircraft jet engine. The bellows spring is made of a plurality of walls that are joined together in a pressurized chamber that is filled with a gas, such as an inert gas. In alternative embodiments, the bellows spring is made of walls that are shaped and oriented to optimize the operating characteristics of the bellows spring when the pressure is increased in a sealed inner chamber in response to elevated temperature. In one embodiment, the walls forming a portion of the chamber overlap to optimize the geometry of the bellows spring.
    Type: Grant
    Filed: March 2, 2012
    Date of Patent: January 20, 2015
    Assignee: Eaton Corporation
    Inventors: Jeffrey E. Swensen, Matthew E. Roach
  • Patent number: 8607815
    Abstract: A butterfly valve with an undulating sealing surface, which has an inflatable annular seal mounted in a housing. A disk is pivotally mounted in the housing and has an edge with an undulating sealing surface and a peripheral sealing edge. The undulating sealing surface of the disk and a sealing face of the annular seal have non-mating profiles when the valve is in an unsealed condition. Pressure in a chamber proximate the annular seal causes the face of the annular seal to expand and deform and the face forms a high-pressure seal between the sealing ridge and the annular seal. Also includes a method for stopping delivery, of a conduit transportable material through a butterfly valve.
    Type: Grant
    Filed: May 15, 2012
    Date of Patent: December 17, 2013
    Assignee: Dynamic Air Inc.
    Inventors: Robert A. Hansen, Daniel Sabelko
  • Patent number: 8607812
    Abstract: A butterfly valve for handling materials where the temperature of the materials flowing through the butterfly valve can exceed the breakdown temperature of the sealing member with the butterfly valve inhibiting contact of hot transportable materials with the sealing member to isolate the hot transportable materials from the sealing member. Cooling conduits maintain at least portions of the valve that contacts the sealing member at a temperature below the breakdown temperature of the sealing member to prevent seal failure.
    Type: Grant
    Filed: May 15, 2012
    Date of Patent: December 17, 2013
    Assignee: Dynamil Air Inc.
    Inventor: James R. Steele
  • Patent number: 8544465
    Abstract: A CPAP device includes a flow generator including an outlet, a humidifier including an inlet, and an adaptor connector between the outlet of the flow generator and the inlet of the humidifier. The connector includes a flexible and conformable sealing portion that is movable to accommodate misalignment.
    Type: Grant
    Filed: August 15, 2006
    Date of Patent: October 1, 2013
    Assignee: Redmed Limited
    Inventors: Ian Malcolm Smith, John Michael Snow, Perry David Lithgow, Dan Kao
  • Patent number: 8505761
    Abstract: Apparatus and methods are provided to minimize the escape of fuel out of a fuel tank when a tank wall is penetrated by a bullet. In one embodiment, a pressure differential may be maintained between a pressure within a fuel tank cavity and another pressure outside the fuel tank cavity in order to minimize the loss of fuel upon penetration of the fuel tank. In another embodiment, a compressed rubber layer of fuel-reactive rubber may be provided which is adapted to be attached to a fuel tank wall and to swell upon contact with fuel in order to substantially seal a penetrated hole in the fuel tank wall.
    Type: Grant
    Filed: January 14, 2011
    Date of Patent: August 13, 2013
    Assignee: The Boeing Company
    Inventors: Tracy L Tweet, Mark A Shelly
  • Patent number: 8492660
    Abstract: Radio-frequency (RF) leakage from shielded enclosures is minimized while ensuring applicable RF attenuation standards and access requirements of the Americans with Disabilities Act (ADA) by attaching an inflatable bladder to a door of an enclosure. Substantially surrounding the bladder is an electrically conductive material. When the bladder is inflated it makes contact with conductive material which in turn makes conductive contact with the door frame to create an RF seal. The use of the bladder and conductive material provides an improved RF seal and allows for the use of a low-profile threshold that permits ADA access to, and from, the enclosure.
    Type: Grant
    Filed: October 22, 2008
    Date of Patent: July 23, 2013
    Inventors: Dominick Carducci, Glenn A. McNemar, Mary R. Castle, Robert A. Wiatr
  • Patent number: 8439217
    Abstract: An apparatus including a flange topped by a fitting including a trap adapted to seize and drive a lid of a barrel for opening the same and two inflatable gaskets equipping the flange and the trap that are inflated for clamping the container and the lid of the barrel at the connection thereof. Contamination inside the barrel and inside the upper enclosure will only spread over small surfaces of the apparatus between the gaskets and to the connection of both parts of the barrel.
    Type: Grant
    Filed: June 10, 2009
    Date of Patent: May 14, 2013
    Assignee: Commissariat a l'Energie Atomique et Aux Energies Alternatives
    Inventors: Christophe Brenneis, Atik Chaouch, Franck Laurent, Alain Gachon
  • Patent number: 8427842
    Abstract: An electromagnetic wave suppression material is fixed to a case of a communication module. The electromagnetic wave suppression material suppresses radiation of electromagnetic waves by coming into contact with a cage that is a module insertion portion of a chassis when the communication module is inserted into the cage. A piezoelectric element is provided on the case, and located between the case and the electromagnetic wave suppression material. When the communication module is inserted into the cage, the controller applies a voltage to the piezoelectric element to stretch it by the applied voltage, thereby increasing contact pressure between the cage and the electromagnetic wave suppression material.
    Type: Grant
    Filed: September 15, 2011
    Date of Patent: April 23, 2013
    Assignee: Fujitsu Optical Components Limited
    Inventor: Katsuhiko Hakomori
  • Patent number: 8366118
    Abstract: An apparatus and method for retaining an inflatable seal comprising a channel having a closed end and a pair of projecting legs. A plurality of spaced apertures in each of the projecting legs extend parallely along a longitudinal axis of the channel. A plurality of nuts align with the corresponding plurality of spaced apertures and an inflatable seal is disposed within the channel. A pin is disposed within each aperture, wherein each of the pins has a threaded portion threadingly engaging one of the nuts and a non-threaded portion projecting towards the neck to dispose the foot intermediate the pins and the closed end.
    Type: Grant
    Filed: June 12, 2008
    Date of Patent: February 5, 2013
    Assignee: Clear View Enclosures, Inc.
    Inventor: Robert J. Schilling
  • Patent number: 8357862
    Abstract: Pressurized rotary machine comprising a canned or sleeved assembly of which the electrical connections are connected to the outside of the machine by an electric supply duct, the electrical connections passing from the canned or sleeved assembly to the outside via the electric supply duct by passing in succession through first, second and third hermetically sealed bushings, none of these hermetically sealed bushings through which the electrical connections pass being exposed to a pressurized gas.
    Type: Grant
    Filed: September 9, 2009
    Date of Patent: January 22, 2013
    Assignee: Societe de Mecanique Magnetique
    Inventor: Luc Baudelocque
  • Patent number: 8256450
    Abstract: A butterfly valve with an undulating sealing surface, which has an inflatable annular seal mounted in a housing. A disk is pivotally mounted in the housing and has an edge with an undulating sealing surface and a peripheral sealing edge. The undulating sealing surface of the disk and a sealing face of the annular seal have non-mating profiles when the valve is in an unsealed condition. Pressure in a chamber proximate the annular seal causes the face of the annular seal to expand and deform and the face forms a high-pressure seal between the sealing ridge and the annular seal. Also includes a method for stopping delivery of a conduit transportable material through a butterfly valve.
    Type: Grant
    Filed: June 30, 2009
    Date of Patent: September 4, 2012
    Assignee: Dynamil Air Inc.
    Inventors: Robert A. Hansen, Daniel Sabelko
  • Patent number: 8256448
    Abstract: A butterfly valve for handling materials where the temperature of the materials flowing through the butterfly valve can exceed the breakdown temperature of the sealing member with the butterfly valve inhibiting contact of hot transportable materials with the sealing member to isolate the hot transportable materials from the sealing member. Cooling conduits maintain at least portions of the valve that contacts the sealing member at a temperature below the breakdown temperature of the sealing member to prevent seal failure.
    Type: Grant
    Filed: April 30, 2008
    Date of Patent: September 4, 2012
    Assignee: Dynamic Air Inc.
    Inventor: James R. Steele
  • Patent number: 8246052
    Abstract: A downhole submersible pumping system includes a housing and a bag seal assembly. The bag seal assembly includes a seal bag and a fastening assembly. The fastening assembly is configured to exert a compressive force between inner and outer surfaces of a first end of the seal bag. The fastening assembly may include a first ring attached to the support tube, a second ring and a plurality of fastening members. The first ring may be configured for threaded engagement with the support tube. The second ring is configured for engagement with the first ring.
    Type: Grant
    Filed: October 30, 2007
    Date of Patent: August 21, 2012
    Assignee: GE Oil & Gas ESP, Inc.
    Inventor: Robert L. Marvel, III
  • Patent number: 8196603
    Abstract: A device to enhance sealing is provided. The device includes a body and a pressure cup. The pressure cup includes a channel, a first pressure channel, and a second pressure channel. The channel is formed in a surface of the body to surround a first portion of the surface. The channel is configured to hold an o-ring. The first pressure channel extends through the body and opens into the first portion of the surface. The second pressure channel extends through the body and opens into the channel. Pneumatic pressure within the second pressure channel is controlled to hold the o-ring in the channel when a second pressure within the first pressure channel changes.
    Type: Grant
    Filed: August 20, 2008
    Date of Patent: June 12, 2012
    Assignee: Semba Biosciences, Inc.
    Inventors: Andrew Paul Wilke, Robert Charles Mierendorf, Anthony Charles Grabski, Cunjiang Cheng
  • Patent number: 8070008
    Abstract: A plug to hermetically seal an aperture in a sheetmetal, or in the floor of a vehicle, comprising, a cap covering the aperture and comprising an external, circumferential flange resting on one side of the sheetmetal or of the floor and fitted with a first circumferential seal, an affixation portion entering said aperture and, a second circumferential seal configured at the cap or at the affixation portion and being a distance from the first seal and resting against the sheetmetal or the said floor, a cavity being subtended by the sheetmetal or said floor, the two seals and at least one wall of the plug, where said plug, includes a pressure-compensating chamber, which communicates with the cavity and, which compensates a change in pressure, caused by a change in temperature, inside the cavity, by changing the volume of the pressure-compensating chamber.
    Type: Grant
    Filed: January 12, 2007
    Date of Patent: December 6, 2011
    Assignee: ITW Automotive Products GmbH & Co. KG
    Inventor: Ulf Janke
  • Patent number: 8028750
    Abstract: Force balancing adjusts hydraulic fluid pressure in an upper piston area of a Rotating Pressure Control Device (RPCD) that has an inner housing rotatably engaged within an outer housing by an upper bearing and a lower bearing. The hydraulic fluid pressure is adjusted to balance net force in a upper piston area and a lower piston area. The fluid pressure adjustment creates a force differential that balances the total load transmitted through the upper bearing and the lower bearing and thereby extends the life of the sealing element and bearings. Additionally, a wear indicator signals the end of the useful life of the drill pipe sealing element.
    Type: Grant
    Filed: April 28, 2010
    Date of Patent: October 4, 2011
    Assignee: Sunstone Corporation
    Inventors: William James Hughes, Murl Ray Richardson, Thomas L. Pettigrew, Kurt D. Vandervort, Kenneth D. Young
  • Patent number: 7900333
    Abstract: Apparatus and methods are provided to minimize the escape of fuel out of a fuel tank when a tank wall is penetrated by a bullet. In one embodiment, a pressure differential may be maintained between a pressure within a fuel tank cavity and another pressure outside the fuel tank cavity in order to minimize the loss of fuel upon penetration of the fuel tank. In another embodiment, a compressed rubber layer of fuel-reactive rubber may be provided which is adapted to be attached to a fuel tank wall and to swell upon contact with fuel in order to substantially seal a penetrated hole in the fuel tank wall.
    Type: Grant
    Filed: April 26, 2007
    Date of Patent: March 8, 2011
    Assignee: The Boeing Company
    Inventors: Tracy L. Tweet, Mark A. Shelly
  • Patent number: 7891671
    Abstract: A panel assembly of the kind found in the air intake of a gas turbine engine or a fan duct is designed to be demountable for maintenance purposes. Consequently there exists between the panels a gap to be sealed. Thus, the assembly has a deformable seal for such a purpose and has an elongated, hollow resilient member mounted on a flange at the edge of one of the panels and arranged to be pressed against a flange at the confronting edge of the adjacent panel. The flanges are shaped such that the hollow member when pressed between the flanges effectively seals the gap between the panels and a portion of the seal member lies flush between the panel edges.
    Type: Grant
    Filed: March 19, 2007
    Date of Patent: February 22, 2011
    Assignee: Rolls-Royce plc
    Inventor: Peter Allford
  • Patent number: 7845707
    Abstract: A closure assembly with a shape memory polymer seal is provided for use with a vehicle. The closure assembly includes a frame member configured for attachment to the vehicle body to selectively transition from a closed position to an open position. The seal structure includes a base portion elongated along and attached to a peripheral edge of the frame member or the vehicle body, and a flexible contact portion extending integrally from the base portion and configured for sealing communication with an opposing surface. A thermally-activated smart material (TASM), namely a shape memory polymer member, is disposed inside a cavity within the contact portion. A thermoelectric device is in thermal communication with the TASM, and is characterized by a thermal differential when current flows therethrough. The TASM is activated in response to the thermal differential of the thermoelectric device, thereby altering at least one physical property of the TASM.
    Type: Grant
    Filed: March 12, 2008
    Date of Patent: December 7, 2010
    Assignee: GM Global Technology Operations, Inc.
    Inventors: Yueh-Se J. Huang, Houng Yue Chang, Phillip M. Turner, Pei-Chung Wang
  • Publication number: 20100289227
    Abstract: Sealing device (11) for sealingly interfacing two adjacent blocks (2, 3) of an article handling machine, each provided with an aperture (6, 9), said sealing device (11) comprising a resilient static sealing joint (12) mounted along the edge (7) of one aperture (6), wherein the sealing joint (12) is hollow, and wherein the sealing device (11) further includes an injection valve (14) for injecting air in the sealing joint (12) to inflate it.
    Type: Application
    Filed: November 7, 2007
    Publication date: November 18, 2010
    Inventor: Michele Soncini
  • Publication number: 20100078894
    Abstract: The present invention discloses a sealing apparatus of a wafer carrier and a sealing method, and the wafer carrier is comprised of a wafer container and a cover, and includes a latch unit for integrally latch the wafer container and the cover. The wafer container has an open distal portion disposed on a surface of wafer container, and the sealing apparatus is installed between the open distal portion and the cover. The sealing apparatus includes an air intake/outtake valve and an air inflation sealing unit coupled to the air intake/outtake valve, and the air intake/outtake valve performs an air inflation to expand the air inflation sealing unit, and the wafer container and the cover are elastically latched after the inflation and the expansion of the air inflation sealing unit to achieve the sealing effect.
    Type: Application
    Filed: October 1, 2008
    Publication date: April 1, 2010
    Applicant: Gudeng Precision Industrial Co., Ltd.
    Inventor: Pao-Yi Lu
  • Publication number: 20100066025
    Abstract: The invention provides a seal for a slide-out room of a recreational vehicle. The slide-out room is movable in a range of positions including a retracted position and an extended position. The seal is compressible between the slide-out room and a side wall of the vehicle and includes at least one sensor capable of detecting a force or a lack thereof on the seal, to indicate if adequate compression of the seal has been achieved in a stop position of the room or if there is an obstruction in between the stop positions.
    Type: Application
    Filed: September 18, 2009
    Publication date: March 18, 2010
    Inventor: Craig J. Kreil
  • Patent number: 7659483
    Abstract: A gasket for shielding a seam between two surfaces includes a resilient member, a first electrode, a second electrode and a conductive layer. The resilient member has a first side and an opposite second side. The first electrode is disposed on the first side of the resilient member. The second electrode is disposed on the second side of the resilient member. The conductive layer envelops at least a portion of the resilient member, the first electrode and the second electrode. The resilient member includes a material that is compressed when a first potential is applied between the first electrode and the second electrode and that is decompressed when a second potential, different from the first potential, is applied between the first electrode and the second electrode.
    Type: Grant
    Filed: May 21, 2008
    Date of Patent: February 9, 2010
    Assignee: International Business Machines Corporation
    Inventors: Don A Gilliland, Sophia S. Lau
  • Patent number: 7624538
    Abstract: Gate with an at least partially peripheral sealing means, with a retaining strip made from metal, within which the seal is arranged, wherein the seal may be activated pneumatically, with an adjustable plate which is located above the seal and is guided by guide means so as to be adjustable relative to the retaining strip, with an electrically conductive fabric strip which electrically connects the retaining strip to the plate, and with spring contacts which are arranged on the plate, are electrically conductive and may be brought into abutment with the rabbet of the installation frame provided on the building side.
    Type: Grant
    Filed: October 4, 2006
    Date of Patent: December 1, 2009
    Assignee: Sommer Metallbau-Stahlbau GmbH & Co. KG
    Inventors: Dieter Hautmann, J├╝rgen Hofmann, Oliver Sommer
  • Patent number: 7556324
    Abstract: A refrigerator including a door that is fastened to the heat-insulating housing thereof and a swell chamber as a door-opening aid. The chamber can be impinged upon by a pressure medium and is disposed between the rear side of the door and a face of the housing. A reservoir feeding the swell chamber with a pressure fluid is disposed on a face of the door and can be compressed by pulling a door handle.
    Type: Grant
    Filed: December 28, 2004
    Date of Patent: July 7, 2009
    Assignee: BSH Bosch und Siemens Hausgeraete GmbH
    Inventor: Thomas Benz
  • Publication number: 20090166976
    Abstract: An inflatable seal for sealing an annular space between two flange parts is formed by a hollow ring composed of elastic material. The hollow ring has a tubular cross-section with a peripheral wall and is provided with a connection for an inflation medium. The peripheral wall comprises, in at least one area of the tubular cross-section, a blocking element having a substantially larger cross-sectional dimension than the remaining part of the peripheral wall. Furthermore, a set of flange parts and a container comprising such a seal, and a method of manufacturing such a seal are disclosed.
    Type: Application
    Filed: April 28, 2006
    Publication date: July 2, 2009
    Applicant: Aeromatic-Fielder AG
    Inventors: Lars Rubner-Petersen, John Peter Donovan
  • Publication number: 20080315533
    Abstract: An inflatable sealing device includes a bushing and a plunger which is movably guided in the bushing through application of air pressure from an air supply to execute a predefined limited stroke. A sealing tube is connected to the plunger and has an interior space which is connected to the air supply to radially expand the sealing tube when air pressure is applied.
    Type: Application
    Filed: August 22, 2008
    Publication date: December 25, 2008
    Applicant: KraussMaffei Technologies GmbH
    Inventor: RAINER JANOTTA
  • Patent number: 7456365
    Abstract: A gasket for shielding a seam between two surfaces includes a resilient member, a first electrode, a second electrode and a conductive layer. The resilient member has a first side and an opposite second side. The first electrode is disposed on the first side of the resilient member. The second electrode is disposed on the second side of the resilient member. The conductive layer envelops at least a portion of the resilient member, the first electrode and the second electrode. The resilient member includes a material that is compressed when a first potential is applied between the first electrode and the second electrode and that is decompressed when a second potential, different from the first potential, is applied between the first electrode and the second electrode.
    Type: Grant
    Filed: September 7, 2006
    Date of Patent: November 25, 2008
    Assignee: International Business Machines Corporation
    Inventors: Don A. Gilliland, Sophia S. Lau
  • Publication number: 20080142088
    Abstract: A tire valve having a valve body engaging in a rim bore of a rim, in particular vehicle rim, which valve body forms a lower valve body section arranged on a side of the rim, in particular in the rim interior, in the assembled state, and an upper valve body section projecting from the rim bore, and in the region of the upper valve body section is designed to cooperate with a union nut, wherein the lower valve body section forms a ring shoulder offering an abutment for a flat edge section of the rim bore, and in which a ring groove which is open to the edge section is moulded, and against which the edge section can be gripped by tightening the union nut, and a moulded seal made from resilient material is provided to seal the rim bore with respect to the valve body, so that in the assembled and gripped state, an annular chamber section of the moulded seal engages in the ring groove and rests in sealing manner on the edge section of the rim bore, and a preferably hollow-cylindrical vertical section of the moulded
    Type: Application
    Filed: December 28, 2005
    Publication date: June 19, 2008
    Applicant: ALLIGATOR VENTILFABRIK GMBH
    Inventor: Renato Palaoro
  • Patent number: 7309057
    Abstract: A guillotine valve, used for example in pipelines includes a single block body incorporating sealing elements, each in the form of an annular hose section, which are made of an elastomeric material and which are hollow along their entire circumference, each providing an airtight pneumatic circumferential chamber filled with air. Due to the compressibility of the chambers the contact faces of the hose sections deform uniformly in relation to a closing blade. Convex contours on the internal faces of the hose sections result in a further sealing effect due the pressing together of the contact faces by the pressure of the pipeline fluid. The hose sections can each also incorporate a T-shaped metal core comprising an axial portion and a radial portion.
    Type: Grant
    Filed: January 10, 2003
    Date of Patent: December 18, 2007
    Assignee: Weir Do Brasil Ltda.
    Inventor: Osvaldo Rodrigues Santiago
  • Patent number: 7178810
    Abstract: A closure seal for doors, hatches and the like comprising a pneumatically inflatable sealing element of generally known configuration housed in a specially constructed channel-shaped retainer. The sealing element comprises a flat, relatively stiff base portion of predetermined width and a flexible portion comprising spaced apart side walls, joined with the base, and an outer wall joining with the side walls to form a hollow expandable section. The base forms shoulders where it joins with the side walls. A retaining channel, formed of sheet metal and of generally U-shaped cross section, receives the sealing element and is formed with longitudinally spaced apart, opposed, inwardly projecting elements forming longitudinally spaced apart constrictions of slightly less width than the base of the sealing element.
    Type: Grant
    Filed: November 2, 2004
    Date of Patent: February 20, 2007
    Assignee: The Presray Corporation
    Inventor: Daniel B. Kuhary
  • Patent number: 7090459
    Abstract: A seal having a first seal mechanism adapted for insertion between a first structure and a second structure, wherein the first structure is in communication with a first medium and the second structure is in communication with a second medium. The seal also includes a second seal mechanism, which is pressuringly biasable against the first seal mechanism and against the second structure by the second medium. In certain embodiments, a system has a first structure in communication with a first medium and a second structure houses a seal assembly between the first and second structures. The seal assembly includes an interface seal disposed against the first structure and a flexible seal pressuringly biased against the second structure and the interface seal by a second medium.
    Type: Grant
    Filed: March 31, 2004
    Date of Patent: August 15, 2006
    Assignee: General Electric Company
    Inventors: Nitin Bhate, Raymond Edward Chupp, Kevin Bruce, Alberto Jose Negroni, Ronald Ralph Cairo
  • Patent number: 7059586
    Abstract: A gate seal for a knife gate valve comprising a sealing surface lining the gate channel and an integral gasket for compression between valve body halves, a chest seal for a knife gate valve comprising a body having an expandable sealing surface and one or more injection chambers adapted to receive an injectable packing, each chamber having a cross-sectional area that is completely surrounded by the body member, and/or a knife gate valve comprising one or both such seals. The chest seal body may comprise a knife gate slot that is peripherally surrounded by the body. The gate seal and the chest seal may comprise a single integral elastomeric member or separate components.
    Type: Grant
    Filed: April 1, 2004
    Date of Patent: June 13, 2006
    Assignee: ITT Manufacturing Enterprises, Inc.
    Inventors: Christopher Allen Vanderberg, Shaine Gordon Reeves, John Paul Comstock, Timothy Carl Sumrall
  • Patent number: 7011315
    Abstract: The present invention is directed to an expandable pre-formed plug that is suitable for sealing and/or structurally reinforcing a structure having surfaces defining a space therebetween. The plug is comprised of at least an expandable inner core having an outer surface and a transportable outer skin that preferably substantially encapsulates the core. In a preferred embodiment, the shape of the unexpanded plug is designed to mate with the surfaces that define a space therebetween upon expansion. The adhesive skin is generally dry to the touch at room temperature, however, upon initiation of expansion, the inner core expands and the surrounding skin is displaced in a coordinated manner. After some period of expansion, the outer skin preferably durably adheres or bonds to the walls of the surfaces defining a space therebetween and the outer surface of the core. A method for using such a plug is also disclosed.
    Type: Grant
    Filed: March 21, 2002
    Date of Patent: March 14, 2006
    Assignee: L&L Products, Inc.
    Inventors: Michael J. Czaplicki, David D. Apfel
  • Patent number: 6942224
    Abstract: An inflatable seal member for providing a fluid-tight seal. The inflatable seal member is particularly well suited to sealing a processing chamber having pressurized fluids therein. Outward forces (exerted by air pressure) to the inner surfaces of the seal member counteract inward forces (exerted by fluid pressure) to the outer surfaces of the seal member.
    Type: Grant
    Filed: July 16, 2003
    Date of Patent: September 13, 2005
    Assignee: Steris Inc.
    Inventors: Karl F. Ludwig, John C. Houston
  • Patent number: 6921090
    Abstract: An improved diaphragm for use with a gasket to prevent leakage of a pressurized fluid. The diaphragm has an internal groove which uses strong spring back and the pressure of the fluid to increase the gasket seating load, thereby providing a self-energizing seal which can accommodate changes in gasket load due to changes in fluid pressure. In one embodiment, a ring is shrink-fit or press-fit about the outer side edge of the diaphragm which improves strength and reduces the material cost.
    Type: Grant
    Filed: April 26, 2002
    Date of Patent: July 26, 2005
    Assignee: Babcock & Wilcox Canada Ltd.
    Inventor: Nansheng Sun
  • Patent number: 6845876
    Abstract: The expandable seal assembly can be used to seal the contents of a container. When air pressure is applied to a chamber, rods with leaf springs on a distal end extend outward mating an expandable elastic to the inside edge of the container to be sealed. A spring-mounted ball valve maintains the pressure in the chamber when the source of the air pressure applied to the chamber is removed.
    Type: Grant
    Filed: June 20, 2002
    Date of Patent: January 25, 2005
    Inventor: William F. Helms, Jr.
  • Patent number: 6827354
    Abstract: A sealing system on a first structural element having a first through-opening, including a first closing flap rotatable about an axis for closing the first through-opening. The sealing system can be coupled to a second structural element. The first closing flap is provided with a first dynamic seal on the radial outer circumference thereof. An elastic seal is provided on the wall of the first through-opening and adjacent the first dynamic seal. The inner diameter of the elastic seal is smaller in the non-operated state than the outer diameter of the first closing flap. The first structural element is provided with a second closing flap which essentially matches the first closing flap and can be swivelled together with the first closing flap. The dynamic seal can be inflated radially towards the outside by means of inner pressure when the first closing flap is in the closing position and in such a way that the elastic seal is at least partially and radially displaced towards the outside.
    Type: Grant
    Filed: July 22, 2002
    Date of Patent: December 7, 2004
    Assignee: Glatt Systemtechnik GmbH
    Inventors: Hans-Dieter Cornelius, Heinz Pritzke
  • Publication number: 20040164499
    Abstract: A shape memory foam material is obtained by impregnating a base foam material in a thermoplastic substance, heating and compressing the same at a temperature the same as or higher than the softening temperature of a thermoplastic substance as well as less than the softening temperature of the base foam material, cooling down while retaining the compressed state, and releasing the pressure after the cooling operation. The compressed state of the shape memory foam material is retained in a room temperature by a hardened product of a thermoplastic substance existing at least in the surface layer part thereof. The compressed state is released by softening the hardened product by heating. Moreover, a soundproof cover for an automobile engine is obtained using this shape memory foam.
    Type: Application
    Filed: February 25, 2004
    Publication date: August 26, 2004
    Applicant: Nichias Corporation
    Inventors: Atsushi Murakami, Takumi Arisawa, Kazuo Nishimoto, Takahiro Niwa
  • Patent number: 6708986
    Abstract: This invention relates to a device a metod for ductchs sealing composed by a sealed bag, with no valve and or accesses, divided by a separator device wich can be un-welded before the application, containing separated chemical substances able to react and generate gas or any other action able to generate an inner pressure into the bag.
    Type: Grant
    Filed: February 14, 2002
    Date of Patent: March 23, 2004
    Assignee: Megarad Srl
    Inventors: Giuseppe Natale, Xinsheng Bian
  • Patent number: 6702300
    Abstract: A high temperature sealing system is operative to seal an interface between adjacent hot structures and to minimize parasitic flow between such structures that move relative to one another in-plane or out-of-plane. The sealing system may be used to seal thrust-directing ramp structures of a reusable launch vehicle and includes a channel and a plurality of movable segmented sealing elements. Adjacent ramp structures include edge walls which extend within the channel. The sealing elements are positioned along the sides of the channel and are biased to engage with the inner surfaces of the ramp structures. The segmented sealing elements are movable to correspond to the contour of the thrust-directing ramp structures. The sealing system is operative to prevent high temperature thrust gases that flow along the ramp structures from infiltrating into the interior of the vehicle.
    Type: Grant
    Filed: January 11, 2002
    Date of Patent: March 9, 2004
    Assignee: The United States of America as represented by the Administrator of the National Aeronautics and Space Administration
    Inventors: Bruce M. Steinetz, Patrick H. Dunlap, Jr.
  • Patent number: 6702301
    Abstract: An active window seal assembly is disclosed that operatively engages a movable window when the window is stationary and disengages the window when the window is in motion. The seal assembly comprises a stationary frame, a movable lip that is operatively connected to the stationary frame, and a cavity disposed between the stationary frame and the movable lip. Several configurations provide for movement of the movable lip when the movable window is in motion. The first configuration allows the cavity to inflate with air, thus forcing the movable lip away from the window. A second configuration provides that the air in the cavity be evacuated, thus pulling the movable lip away from the window. A third configuration provides that a voltage be applied to the stationary frame and the movable lip to create an electric field. The electric field draws the movable lip toward the stationary frame and away from the movable window.
    Type: Grant
    Filed: September 23, 1999
    Date of Patent: March 9, 2004
    Assignee: Meritor Light Vehicle Systems, Inc.
    Inventors: Timothy Davies, Charles Hopson, Christos Kyrtsos, Joseph Tyckowski, Francois Breynaert
  • Publication number: 20040000764
    Abstract: A sealing device for a gap between two adjacent machine parts, including at least one inflatable, elastically stretchable tube, which is fitted into a groove in the sidewall of one of the machine parts, and which, when inflated, may, be positioned against a surface of the other machine part, which borders on the gap on the side opposite the groove, at least one end of tube (2) being provided with a circumferential, turned-inward portion (6, 16) that engages its interior, into which a supporting member (5, 15) is inserted on the inside.
    Type: Application
    Filed: May 7, 2003
    Publication date: January 1, 2004
    Inventor: Wolfgang Lange
  • Patent number: 6651394
    Abstract: A method and apparatus for positioning mild steel reinforcing bars within a precast, moment resisting frame of a building. The apparatus includes a hand-receiving access component that can be installed within the concrete beams that make up the building frame so as to permit convenient access to the reinforcing bars that are slidably carried within bar receiving passageways formed within the concrete beams. Additionally, the apparatus includes a bladder-receiving component that can be installed within the concrete beams that make up the building frame in a manner to permit an expandable bladder to be conveniently positioned within the cable receiving passageways formed in the beam. When in position within a cable-receiving passageway, the expandable bladder spans the interface between the beam and the column and effectively prevents grout from entering the cable passageway during the grouting step.
    Type: Grant
    Filed: December 10, 2001
    Date of Patent: November 25, 2003
    Inventor: Bill Hughes