And Reduction Of Pressure Patents (Class 95/284)
  • Publication number: 20150027312
    Abstract: An apparatus, method and system remove contaminants from a vapor. In an embodiment, a contaminant removal apparatus includes a vacuum box. The vacuum box is a vessel. The apparatus also includes a demister pad disposed in the vacuum box. A vapor is introduced to the vacuum box on an opposing side of the demister pad from a vapor exit from the vacuum box.
    Type: Application
    Filed: October 13, 2014
    Publication date: January 29, 2015
    Applicant: GLOBAL VAPOR CONTROL, INC.
    Inventors: Daryl Archuleta, Amos Ydrogo, Lisha Salathiel, Doug Scott, Alan Finley
  • Patent number: 8870990
    Abstract: A fracking trailer includes a particulate storage enclosure to receive a mixture of particulate and air in an interior of the particulate storage enclosure having a front end and a rear end. The fracking trailer also includes a filtration system connected to the particulate storage enclosure at the front end to filter particulate from the air in the mixture and exhaust filtered air.
    Type: Grant
    Filed: October 15, 2012
    Date of Patent: October 28, 2014
    Assignee: Halliburton Energy Services, Inc.
    Inventors: Alexander Lynn Marks, Kary Layne Covington, Johnny Ray Sanders, Jr.
  • Publication number: 20140283689
    Abstract: In this process, a gas stream containing the oil to be separated is circulated between an inlet zone and an outlet zone, and a calm vacuum zone is created where the oil is recovered and evacuated, after having been captured. According to the invention, the gas stream is passed in contact with a porous media, one face of which is in contact with the calm vacuum zone. The drops of oil are thus captured by the porous media and sucked through this media to arrive in the calm zone. This process is applicable to decanters of oil at impacters and also to cyclone separators, in particular in the automotive field.
    Type: Application
    Filed: October 26, 2012
    Publication date: September 25, 2014
    Applicant: MGI COUTIER
    Inventors: Pascal Guerry, Patrick Barbe
  • Patent number: 8753424
    Abstract: An emissions control system is provided that comprises a fuel tank, a hydrocarbon filter element, and a three-way valve coupled between the hydrocarbon filter element and the atmosphere. The three-way valve is comprised of three ports, a purge port, a reference port, and a sealed port, and enables identification of degradation of the emissions control system. The arrangement of the ports on the valve enables a simplified testing method that reduces background errors caused by transitioning between various operating positions.
    Type: Grant
    Filed: October 8, 2013
    Date of Patent: June 17, 2014
    Assignee: Ford Global Technologies, LLC
    Inventors: Aed Mohammad Dudar, Robert Roy Jentz, Mark W. Peters
  • Patent number: 8695585
    Abstract: Grease filtration systems suitable for use on the rooftop of a building are disclosed. Methods of making and using grease filtration systems are also disclosed.
    Type: Grant
    Filed: February 21, 2006
    Date of Patent: April 15, 2014
    Inventors: Terry Kessler, Keith Crane
  • Publication number: 20140069276
    Abstract: A method and system remove contaminants from a vapor. In one embodiment, the system includes a contaminant removal system having a vacuum box. The contaminant removal system includes a contaminated vapor from process equipment is introduced to the vacuum box. The contaminated vapor includes steam and hydrocarbons. The vacuum box includes a water removal device. The water removal device removes water from the contaminated vapor to provide water and a reduced water vapor. The contaminated vapor is introduced to the vacuum box below the water removal device. The water and the reduced water vapor are removed from the vacuum box. The water removal device is disposed in the vacuum box at an elevation below an elevation at which the reduced water vapor is removed from the vacuum box.
    Type: Application
    Filed: November 18, 2013
    Publication date: March 13, 2014
    Applicant: GLOBAL VAPOR CONTROL, INC.
    Inventors: Lisha Salathiel, Doug Scott, Alan Finley
  • Patent number: 8657897
    Abstract: A wet gas separator providing superior separation of entrained droplets of liquids in a gas stream when compared with prior art wet gas separators. The wet gas separator of the present invention has a combination of: a gas inlet system with vanes that divide and direct the gas stream very evenly across the cross-sectional area of the inlet portion of the apparatus, a first stage Z-shaped de-entraining device at the upstream side of a wire mesh mist eliminator, and a gas outlet system having cyclones for removal of traces of re-entrained droplets. The apparatus of the present invention has capability of improving processing throughput by 50% when compared with prior art apparatus, with greater de-entrainment efficiency (achieving 99.7% removal of droplets larger than 10 microns in size).
    Type: Grant
    Filed: June 29, 2009
    Date of Patent: February 25, 2014
    Inventors: Zainab Kayat, Adam T. Lee, Farzad G. Tahmassi, Zakariah Bin Kasah, Hasni B. Haron
  • Patent number: 8551214
    Abstract: An emissions control system is provided that comprises a fuel tank, a hydrocarbon filter element, and a three-way valve coupled between the hydrocarbon filter element and the atmosphere. The three-way valve is comprised of three ports, a purge port, a reference port, and a sealed port, and enables identification of degradation of the emissions control system. The arrangement of the ports on the valve enables a simplified testing method that reduces background errors caused by transitioning between various operating positions.
    Type: Grant
    Filed: March 8, 2011
    Date of Patent: October 8, 2013
    Assignee: Ford Global Technologies, LLC
    Inventors: Aed Mohammad Dudar, Robert Roy Jentz, Mark W. Peters
  • Publication number: 20130192467
    Abstract: A central mobile air collection and treatment platform to establish and maintain a negative air pressure environment in a designated structure. Multiple stage air filtration stations within a central vacuum source combine general dust filtration, collection and disposal with inline multiple particulate HEPA filtration in a high volume self-contained mobile platform configuration for adaptable multi-venue staging.
    Type: Application
    Filed: January 30, 2012
    Publication date: August 1, 2013
    Inventor: Gus Lyras
  • Publication number: 20130129587
    Abstract: A method and system remove contaminants from a vapor. In one embodiment, the system includes a contaminant removal system having a vacuum box. A contaminated vapor from process equipment is introduced to the vacuum box. The contaminated vapor includes steam and hydrocarbons. The vacuum box includes a water removal device. The water removal device removes water from the contaminated vapor to provide water and a reduced water vapor. The water and the reduced water vapor are removed from the vacuum box.
    Type: Application
    Filed: October 12, 2012
    Publication date: May 23, 2013
    Applicant: Global Vapor Control, Inc.
    Inventor: Global Vapor Control, Inc.
  • Patent number: 8419845
    Abstract: The present invention provides an air filter including a main body, a pressure fan, a filter mode and a fixing assembly. The main body has a containing room, an entrance hole and an exit hole. The pressure fan is disposed in the containing room. The filter mode includes a first filter layer, a second filter layer and a frame body. The first filter layer is disposed in the entrance hole, and the second filter layer is disposed in the frame body. As such, users can select to use only the first filter layer or both filter layers at one time. Moreover, users only need to let the frame body pivot to a position away from the entrance hole so that users can change the filter layers faster and easier.
    Type: Grant
    Filed: July 29, 2011
    Date of Patent: April 16, 2013
    Inventor: Tony Lin
  • Patent number: 8282712
    Abstract: A filtration medium is disclosed for use in air filters used in heating, ventilating and air conditioning systems. The medium contains at least one nanofiber layer of fibers having diameters less than 1 ?m and at least one upstream layer, the medium having sufficient holding capacity for dust particles that efficiency loss and pressure loss across the medium are minimized during use.
    Type: Grant
    Filed: April 6, 2009
    Date of Patent: October 9, 2012
    Assignee: E I du Pont de Nemours and Company
    Inventors: Cheng-Hang Chi, Hyun Sung Lim, Lu Zhang
  • Publication number: 20120227580
    Abstract: An emissions control system is provided that comprises a fuel tank, a hydrocarbon filter element, and a three-way valve coupled between the hydrocarbon filter element and the atmosphere. The three-way valve is comprised of three ports, a purge port, a reference port, and a sealed port, and enables identification of degradation of the emissions control system. The arrangement of the ports on the valve enables a simplified testing method that reduces background errors caused by transitioning between various operating positions.
    Type: Application
    Filed: March 8, 2011
    Publication date: September 13, 2012
    Applicant: FORD GLOBAL TECHNOLOGIES, LLC
    Inventors: Aed Mohammad Dudar, Robert Roy Jentz, Mark W. Peters
  • Publication number: 20120174787
    Abstract: A system including, a filter having an exterior surface, wherein the exterior surface contains a three-dimensional surface morphology.
    Type: Application
    Filed: January 12, 2011
    Publication date: July 12, 2012
    Applicant: General Electric Company
    Inventors: Vishal Bansal, Peter Martin Maly, Robert Warren Taylor
  • Patent number: 8211215
    Abstract: An instrument gas conditioning system is provided. The system includes filtering, and optionally drying, a gas stream to obtain a filtered, and optionally dried, gas stream. The filtered, and optionally dried, gas stream is heated in a heater and then regulated through a regulator. The filtered, heated, regulated, and, optionally dried, gas stream may be used as instrumentation gas.
    Type: Grant
    Filed: July 6, 2009
    Date of Patent: July 3, 2012
    Assignee: RMS Controls, Inc.
    Inventors: Jeff Schott, Eric Almaraz
  • Patent number: 8062409
    Abstract: In order to produce a cleaning device for cleaning a workpiece including a suction apparatus for sucking out impurities from an interior of the work piece wherein the suction apparatus has a particularly large suction effect, it is proposed that the suction apparatus at least one vacuum tank, at least one evacuation device for evacuating the vacuum tank, at least one ventilation line for connecting the vacuum tank to the workpiece and at least one blocking device for blocking off the connection between the vacuum tank and the workpiece.
    Type: Grant
    Filed: January 22, 2009
    Date of Patent: November 22, 2011
    Assignee: Dürr Ecoclean GmhB
    Inventor: Egon Käske
  • Publication number: 20110244775
    Abstract: An improved system and method for monitoring contamination loading of a filter in a biological safety cabinet comprising a housing defining a work chamber and a filtration chamber, a system for circulating air between the work chamber and the filtration chamber via a fan which draws air under negative pressure from the work chamber and delivers the air under positive pressure through the filter and into the filtration chamber. The filter monitoring system determines a pressure differential between the negative and positive air pressure at opposite sides of the fan, and evaluates the degree of contamination loading of the filter on the basis of the pressure differential. An air flow baffle is disposed within the filtration chamber adjacent the fan for dividing the pressurized air delivered by the fan and partially redirecting a portion thereof for more uniformly delivering the air to the filter.
    Type: Application
    Filed: April 2, 2010
    Publication date: October 6, 2011
    Applicant: Kewaunee Scientific Corporation
    Inventors: Robert Kenneth Haugen, Kurt P. Rindoks, Arturo Ramos
  • Publication number: 20110197766
    Abstract: An air filter system and an air filter therefor are provided for use in a building with first and second zones separated by a wall-door system having a wall with a door therein. Weatherstripping is mounted between side and upper edges of the door and a door frame in the wall and between the lower edge of the door and the threshold region of the floor to substantially seal against air flow between the door edges and the door frame and floor when the door is closed. An air flow permitting opening is provided in the wall-door system, sized to permit a controlled amount of airflow between the first and second zones when there is a pre-determined pressure differential between said zones. An air filter is mounted in such opening.
    Type: Application
    Filed: February 18, 2010
    Publication date: August 18, 2011
    Applicant: Bordin Racing Limited
    Inventor: Andrew Bordin
  • Publication number: 20100300292
    Abstract: A fan assembly is adjustable between two suction modes by alternating the position of the fan assembly on a flat surface, such as a table top. The fan assembly has two separate suction openings, one smaller than the other, which are selectively sealed by the flat surface. The suction openings are bounded by planar edges of an air guide that protrudes outward from a fan casing of the assembly. In one position, a first suction opening is unobstructed by the flat surface while the second suction opening is either partially obstructed or substantially sealed by the flat surface. In another position, the second suction opening is unobstructed by the flat surface while the first suction opening is substantially sealed by the flat surface.
    Type: Application
    Filed: May 26, 2010
    Publication date: December 2, 2010
    Inventor: Toshinobu Ishihara
  • Patent number: 7771517
    Abstract: A fluid filter is preferably constructed from a relatively thick batting of high loft, non-woven, fluid permeable fibrous material. The filter batting is then passed through a manufacturing device, which slices the batting in the vertical as to create two continuous filter batts from the parent filter batt. The slicing also creates a relatively deep V-shaped zig zag or waveform pattern in the anterior filter surfaces of the top and bottom of the batt. The top half deep V-shaped zigzag patterns peaks and valleys correspond or line up with the bottom half's valleys and peaks since the waveform landscape of the first child batt is essentially a negative impression of the second child batt. Accordingly, the patterns nest within one another. When separated, the two children batts each comprise a waveform landscape for dynamically directing fluid streams from the anterior filter surface to the posterior filter surface.
    Type: Grant
    Filed: May 14, 2007
    Date of Patent: August 10, 2010
    Assignee: Global Finishing Solutions, L.L.C.
    Inventor: James R. Dralle
  • Publication number: 20100116139
    Abstract: A chain protector for a linear motion processing machine comprises a first protecting assembly and a second protecting assembly. The first protecting assembly includes a holding space for accommodation of a chain, and the second protecting assembly includes a limiting space for accommodation of the first protecting assembly. The chain is protected by the first protecting assembly and the second protecting assembly that are made of different materials against the severe working environment. The first protecting assembly is connected to a negative pressure system by pipe to eliminate the dust generated by the mechanical operation, thus maintaining a clean work environment.
    Type: Application
    Filed: November 11, 2008
    Publication date: May 13, 2010
    Inventor: Chang-Cheng Ho
  • Publication number: 20100043637
    Abstract: A filter assembly having a filter head having inlet and outlet ports and a top cap having a substantially curved, non-planar flange portion, the non-planar flange sealingly received within the filter head such that the filter head is divided into inlet and outlet partitions. In some embodiments, the flange portion has a generally s-shaped cross-sectional profile. The flange portion incorporating a modified venturi for improved flow of both inlet and outlet streams through the filter assembly.
    Type: Application
    Filed: October 29, 2009
    Publication date: February 25, 2010
    Applicant: Flair Corporation (a Delaware Corporation)
    Inventor: James W. Barnwell
  • Publication number: 20090266233
    Abstract: A filter bag for a vacuum cleaner made of a composite material comprising at least three layers, at least two layers which comprise a nonwoven fabric layer and at least one nonwoven fibre layer being connected by a weld.
    Type: Application
    Filed: April 10, 2007
    Publication date: October 29, 2009
    Applicant: Eurofilters N.V.
    Inventors: Jan Schultink, Ralf Sauer
  • Publication number: 20090249956
    Abstract: A filtration medium is disclosed for use in air filters used in heating, ventilating and air conditioning systems. The medium contains at least one nanofiber layer of fibers having diameters less than 1 ?m and at least one upstream layer, the medium having sufficient holding capacity for dust particles that efficiency loss and pressure loss across the medium are minimized during use.
    Type: Application
    Filed: April 6, 2009
    Publication date: October 8, 2009
    Applicant: E. I. DU PONT DE NEMOURS AND COMPANY
    Inventors: CHENG-HANG CHI, Hyun Sung Lim, Lu Zhang
  • Publication number: 20090173227
    Abstract: In order to produce a cleaning device for cleaning a workpiece comprising a suction apparatus for sucking out impurities from an interior of the work piece wherein the suction apparatus has a particularly large suction effect, it is proposed that the suction apparatus at least one vacuum tank, at least one evacuation device for evacuating the vacuum tank, at least one ventilation line for connecting the vacuum tank to the workpiece and at least one blocking device for blocking off the connection between the vacuum tank and the workpiece.
    Type: Application
    Filed: January 22, 2009
    Publication date: July 9, 2009
    Inventor: Egon Kaske
  • Publication number: 20090165651
    Abstract: Sintered fiber filters are provided that can afford high particle capture efficiency and/or low pressure drop during operation, and are useful in applications such as semiconductor processing. The shape of at least a portion of the individual fibers (e.g., metal fibers) used to make the filter have a three-dimensional aspect, which allows for a low packing density and high porosity filtration media. Certain filters have a cylindrical or tube-like shape with tapered ends of higher density. Methods of making such filters, for example, using axial pressing, are also described.
    Type: Application
    Filed: October 22, 2008
    Publication date: July 2, 2009
    Applicant: MOTT CORPORATION
    Inventors: Derek BURGESS, Wayne F. WHITE, Alfred M. ROMANO, Todd W. PFLUGBEIL, Richard D. BALAZY, Kenneth L. RUBOW, John E. ROSENBERGER
  • Publication number: 20090049987
    Abstract: An apparatus and a system is provided that may be utilized to provide stability to air flow through a hood scoop. The present invention may also be utilized to straighten and smooth out air flow through a hood scoop and accompanying air filter media. The present invention utilizes an air filtration media which may be inserted into at least a portion of a vehicle hood scoop and may filter out particulate and may also slow air flow down temporarily in order to straighten and/or smooth turbulent air flow through the air filtration media.
    Type: Application
    Filed: August 20, 2007
    Publication date: February 26, 2009
    Applicant: K&N ENGINEERING, INC.
    Inventor: Jonathan Richard Fiello
  • Publication number: 20080210093
    Abstract: The invention relates to containers, particularly to containers for storing dry granules and powders, for examples silos.
    Type: Application
    Filed: April 19, 2006
    Publication date: September 4, 2008
    Applicant: InBulk Technologies Limited
    Inventor: Brian Snowdon
  • Publication number: 20080134461
    Abstract: In order to measure the degree of filling of a dust collector (5), where the dust (15, 16) collected in the dust collector may be of a very varied composition ranging from very fine dust (15) to rather large particles (16), a high pressure difference and a low pressure difference are measured by two differential pressure meters (11, 12), where the one differential pressure meter (12) measures the pressure difference between the compartment (4) of the dust collector, in which the dust collector (5) is arranged, and a measurement position at the connecting stub (6) of the vacuum cleaner, as is known, while the other differential pressure meter (11) measures between two measurement positions inside the connecting stub (6).
    Type: Application
    Filed: March 3, 2006
    Publication date: June 12, 2008
    Inventor: Anders Hedelund Nielsen
  • Patent number: 7329306
    Abstract: A process is disclosed for shut-down of a membrane separation zone comprising a non-permeate side and a permeate side and processing a feed stream comprising a non-permeable component, a less-readily permeable, condensable component, and a readily permeable component. When the feed stream is not passed to the membrane separation zone, a purge stream is passed to the non-permeate side of the membrane separation to remove a residual gas stream and thereby prevent condensation of the less-readily permeable, condensable component upon depressurization and/or cooling of the membrane separation zone. This purge stream is provided by taking a feed stream, lowering its pressure which leads to cooling and then passing the cooled stream through a gas-liquid separator to removed condensed liquids.
    Type: Grant
    Filed: December 2, 2004
    Date of Patent: February 12, 2008
    Assignee: UOP LLC
    Inventor: David R. Koch
  • Patent number: 6997974
    Abstract: A coalescing assembly for coalescing entrained oil from a high temperature, high velocity gas stream comprises a coalescing element of compacted high temperature polyamide fibers, such as those available under the trademark Nomex®, rigidly held by concentric cylindrical support structures of a dense fibrous material such as stainless steel. The coalescing assembly forms a component of an oil coalescer having a unique hole configuration in its outer shell to prevent coalesced oil from being re-entrained into the gas stream. The oil coalescer is a component of an oil separator for use in aircraft operational environments and features high durability and longevity of 10 years or more.
    Type: Grant
    Filed: November 15, 2004
    Date of Patent: February 14, 2006
    Assignee: Honeywell International, Inc.
    Inventors: Trung N. Tran, Tom Iles, Christopher L. Scott
  • Patent number: 6592543
    Abstract: A fluid flow regulator of a smoke evacuation system for use with laparoscopic and endoscopic surgery is disclosed. The fluid flow regulator is comprised of a flow regulating means and a conduit connecting means. The flow regulating means in one embodiment includes a diaphragm and one or more orifices of predetermined diameter to provide a significant obstruction to the flow of fluid through the evacuation system. When operatively coupled to the pressurized surgical site, the fluid flow regulator makes possible the continuous evacuation of surgical smoke while simultaneously maintaining the pneumoperitoneum in a distended position for the duration of the laparoscopic procedure. Also disclosed is a method of using the fluid flow regulator to continually evacuate surgical smoke in the course of laparoscopic and endoscopic surgical procedures without deflating the pneumoperitoneum, which hereto for has been used by prior art systems to evacuate surgical smoke.
    Type: Grant
    Filed: April 3, 2002
    Date of Patent: July 15, 2003
    Assignee: Surgin Inc.
    Inventors: Theodore S. Wortrich, Armand Maaskamp, Michael Ekinaka
  • Publication number: 20030075047
    Abstract: A bactericidal after-filter device that mounts generally parallel to and downstream of an air filter of an air duct circulation network of a living enclosure includes a body having a front-screen element facing a back-screen element that allow for the filtered air to freely flow there through. A bactericidal medium, such as fibers forming a layer of angel's hair, is contained in between the front-screen and back-screen elements of the body and has a porosity that provides substantially no obstruction to the filtered air flowing there through while it locally retains and kills the air-suspended bacteria therein.
    Type: Application
    Filed: October 22, 2001
    Publication date: April 24, 2003
    Inventor: Normand Bolduc
  • Patent number: 6387158
    Abstract: A method of removing moisture efficiently in the gas supply system by evacuation at normal temperature without using the baking method. The method involves flowing a gas to remove moisture in the gas supply system with the flow pressure of the gas to remove moisture set at not lower than a minimum pressure at which the gas flow becomes viscous and not higher than a water saturated vapor pressure at a flow temperature of the gas to remove moisture. The gas to remove moisture achieves a viscous flow when a mean free path of gas molecules is smaller than a diameter of piping of the gas supply system. If the gas for removing moisture is evacuated at normal temperature under such conditions, the adsorbed moisture on an inside surface of the piping and in the valves and filters can be removed effectively.
    Type: Grant
    Filed: May 4, 2001
    Date of Patent: May 14, 2002
    Assignee: Fujikin Incorporated
    Inventors: Nobukazu Ikeda, Akihiro Morimoto, Yukio Minami, Teruo Honiden, Kouji Kawada, Katunori Komehana, Touru Hirai, Michio Yamaji
  • Patent number: 6251169
    Abstract: A vacuum/reduced pressure refining vessel (1) is connected, by an upstream duct (5) to a dry dust collector (3) that uses a filter (2). The dry dust collector (3) is connected to a reduced pressure evacuating apparatus (4) by a downstream duct (6), and a block valve (7) is provided in the upstream duct (5). At the start of a vacuum/reduced pressure refining treatment, a non-oxidizing gas is injected into the upstream duct at a position that is upstream of the block valve (7) to substantially replace the oxygen in the upstream duct and to hermetically close the upstream duct. After the hermetically closed state has been established in the upstream duct, the block valve (7) is opened and operation of the dry dust collector (3) is started.
    Type: Grant
    Filed: March 8, 1999
    Date of Patent: June 26, 2001
    Assignee: Nippon Steel Corporation
    Inventors: Kensuke Shimomura, Masaru Sadachika, Hironori Takano, Gaku Ogawa, Kenji Abe, Mayumi Okimori, Nobuyuki Makino, Hiroshi Iwasaki, Tomoaki Tanaka, Hiroaki Morishige
  • Patent number: 6217637
    Abstract: An apparatus and method for filtration of particulate matter in fluid streams. A unique high efficiency, two element filter embodying an enclosure containing a tandem rotary disk and drum filter mounted on a common shaft is described. A method of operation including manual and computer control modes are described.
    Type: Grant
    Filed: March 10, 1999
    Date of Patent: April 17, 2001
    Inventors: Jerry L. Toney, Nathan E. E. Toney, Gregory F. Ward
  • Patent number: 5681372
    Abstract: A device and method for separating oil from the vent of an oil reservoir, such as a sump of an oil-free compressor, includes a suction pump for drawing in air from the oil reservoir through a first venting line and delivering the air through a second venting line to a filter on the one hand, and a connection between the oil reservoir and the environment on the other hand. The suction pump always draws a flow at a rate which is greater than a normal venting flow to the sump such that flow through the connection is always from the environment to the oil reservoir in order to maintain a constant air content and pressure in the oil reservoir.
    Type: Grant
    Filed: December 27, 1995
    Date of Patent: October 28, 1997
    Assignee: Atlas Copco Airpower, N.V.
    Inventor: Hans Magits
  • Patent number: 5649997
    Abstract: Apparatus for use with a gaming table or other surfaces for removing and filtering indoor airborne fumes and particles at their point of origin. A laminar exhaust air flow is created across the table surface. The laminar exhaust is drawn by vacuum through air intakes positioned at the table surface and ported through exhaust ducts for filtering and discharge.
    Type: Grant
    Filed: May 19, 1995
    Date of Patent: July 22, 1997
    Inventors: Thomas Cavallero, Nickolas C. Gibson, Richard Bilyak
  • Patent number: 5647880
    Abstract: A pressure relief valve for both reducing pressure in a vessel when the pressure of a mixed media combination made up of a mixture of gaseous and nongaseous components and contained in the vessel is at a relief valve actuating pressure, and for filtering nongaseous components from a mixed media combination flowed from the valve. The valve includes a housing with an inlet and a discharge port. The housing inlet is disposed in mixed media combination receiving communication with the vessel. The housing defines a housing chamber and the housing also includes a valve member movable within in the chamber between an occluding position, relative to the inlet when the vessel pressure is not at the actuating pressure, and a non-occluding position, relative to the inlet, when the vessel pressure is at the actuating pressure. The pressure relief valve also includes a filter device expandable by the mixed media combination when the vessel pressure is at the actuating pressure.
    Type: Grant
    Filed: August 31, 1995
    Date of Patent: July 15, 1997
    Assignee: Ingersoll-Rand Company
    Inventor: Jay T. Johnson
  • Patent number: 5647893
    Abstract: A pressure relief valve for both reducing pressure in a vessel when the pressure of a mixed media combination made up of a mixture of gaseous and nongaseous components and contained in the vessel is at a relief valve actuating pressure, and for filtering nongaseous components from a mixed media combination flowed from the valve. The valve includes a housing with an inlet and a discharge port. The housing inlet is disposed in mixed media combination receiving communication with the vessel. The housing defines a housing chamber and the housing also includes a valve member movable within in the chamber between an occluding position, relative to the inlet when the vessel pressure is not at the actuating pressure, and a non-occluding position, relative to the inlet, when the vessel pressure is at the actuating pressure. The pressure relief valve also includes a filter device expandable by the mixed media combination when the vessel pressure is at the actuating pressure.
    Type: Grant
    Filed: August 30, 1996
    Date of Patent: July 15, 1997
    Assignee: Ingersoll-Rand Company
    Inventor: Jay T. Johnson
  • Patent number: 5536286
    Abstract: A vacuum valve filter system has a plurality of diverting elements sandwiching a plurality of filter elements for filtering fluid passing from a cavity of a vacuum die. The diverter elements establish a serpentine fluid flow through the filter systems. Also, the filter elements are compressible, acting as a stop in the event of an overflow of molten material entering the filter system.
    Type: Grant
    Filed: September 26, 1994
    Date of Patent: July 16, 1996
    Inventor: Lewis G. Freeman
  • Patent number: 5334239
    Abstract: A separation device employing a gas separation filter and swirler vanes for separating gas from a gasliquid mixture is provided. The cylindrical filter utilizes the principle that surface tension in the pores of the filter prevents gas bubbles from passing through. As a result, the gas collects in the interior region of the filter and coalesces to form larger bubbles in the center of the device. The device is particularly suited for use in microgravity conditions since the swirlers induce a centrifugal force which causes liquid to move from the inner region of the filter, pass the pores, and flow through the outlet of the device while the entrained gas is trapped by the filter. The device includes a cylindrical gas storage screen which is enclosed by the cylindrical gas separation filter. The screen has pores that are larger than those of the filters. The screen prevents larger bubbles that have been formed from reaching and interfering with the pores of the gas separation filter.
    Type: Grant
    Filed: November 29, 1993
    Date of Patent: August 2, 1994
    Assignee: The United States of America as represented by the United States Department of Energy
    Inventors: Hwang Choe, Thomas T. Fallas
  • Patent number: 5279629
    Abstract: An air handling and filtering system is provided for with conventional textile machines. The apparatus includes a common vacuum system for drawing first and second independent airstreams through the textile machines. A filtering system operates with the vacuum system to filter the useful white waste fiber material from all of the first airstreams. Individual filtering devices are provided for each textile machine and are housed in end-housing units disposed as one end of the textile machine. The individual filtering devices filter generally waste fiber material from the second airstreams drawn through the textile machines. The individual filtering devices can be isolated from the common vacuum system so that the individual waste fiber filters can be cleaned without stopping or otherwise affecting the critical first airstream so as not to detrimentally affect yarn formation at the spinning stations of the textile machines.
    Type: Grant
    Filed: February 26, 1993
    Date of Patent: January 18, 1994
    Assignee: LTG Lufttechnische GmbH
    Inventor: Helmut Stueble