Contained Or Compressed By Gland Member In Packing Box Patents (Class 277/510)
  • Patent number: 10349977
    Abstract: A catheter assembly includes a resector balloon catheter and a hub coupled to the proximal portion of the catheter. The hub includes an inflation port that supplies fluid to a first lumen of the catheter to inflate a resector balloon. The hub further includes a delivery port for delivering an agent, such as drugs, to a second lumen of the catheter for delivery to the distal end of the catheter. The hub also includes an aperture for inserting a device, such as an imaging device, into the second lumen of the catheter. In some embodiments, the catheter includes a third lumen, and the hub includes an additional port in fluid communication with the third lumen.
    Type: Grant
    Filed: March 15, 2013
    Date of Patent: July 16, 2019
    Assignee: Sanovas Intellectual Property, LLC
    Inventors: Erhan H. Gunday, Lawrence J. Gerrans, Alex Hsia, Devin J S Scheifele, Jessie Tung
  • Patent number: 10208463
    Abstract: A water well head casing adapter for attachment to a water well head casing providing a two piece body engaged within the head casing of the water well with an inner formed cavity securing a baffle comprising a plurality of flexible wafer inserts defining a linear bore, the linear bore forming a seal around an air pressure hose to introduce pressurized air into the water well casing without water or air escaping between the air hose and the linear bore, the water well head casing adapter used to reduce the time and improve the efficiency required to purge and to blow out unsanitary water in the water well casing and water lines of a newly drilled water well.
    Type: Grant
    Filed: May 16, 2017
    Date of Patent: February 19, 2019
    Inventors: Wanying Zheng, Madison Kay Enright, Nicholas D Blankenship
  • Patent number: 10066774
    Abstract: A fitting for attaching to double wall tubes includes a body, a fitting center port, an outer seal, a tube connection, a pad connection, an inner seal, a groove, and a diagnostic port. The body has a first surface on a first side of the body and a second surface on a second side of the body. The fitting center port extends through the body for passing a primary fluid flow. The tube connection is on the first side of the fitting, and includes an inner connection and an outer connection. The groove is in the second surface surrounding the inner seal and the groove is configured to receive an outer seal. The diagnostic port is in the second surface for transferring a collected fluid through the body to the outer connection.
    Type: Grant
    Filed: March 27, 2015
    Date of Patent: September 4, 2018
    Assignee: United Technologies Corporation
    Inventors: Peter S. Matteson, Joseph Martin Gambill, Leslie Charles Kurz, Richard Joseph Bulkovitch, Pawel Socha, Michael Luther Comeau, Usman Khan
  • Patent number: 9810175
    Abstract: The oil control ring (2) extends in a circumferential direction (2x) about a center (2l) and has a longitudinal axis (2m) that passes through the center (2l), wherein the oil control ring (2) has an end face (2d) that faces the center (2l), and wherein the oil control ring (2) has a first lateral surface (2s), a second lateral surface (2t), and an outer surface (2u) facing away from the center (2l), wherein the oil control ring (2) has a plurality of channels (2c) extending toward the center (2l) on the first lateral surface (2s), said channels being arranged at mutual distances in the circumferential direction (2x) and extending over the entire width of the first lateral surface (2s) in the radial direction and thereby forming a fluid-conducting connection between the end face (2d) and the outer surface (2u), and wherein crown parts (2i) extending in the circumferential direction (2x) are arranged between pairs of channels (2c), wherein each crown part (2i) protrudes beyond the respective channel (2c) in the
    Type: Grant
    Filed: January 23, 2012
    Date of Patent: November 7, 2017
    Assignee: BURCKHARDT COMPRESSION AG
    Inventor: Norbert Feistel
  • Patent number: 9435437
    Abstract: The invention relates to rotating sealing device for the passage of a fluid, including at least one seal positioned between a fixed support and a crown mounted able to rotate with respect to the support. This device is characterized in that the seal is constituted by a ring mounted able to slide in a groove in the fixed support and which incorporates a front face intended to come into contact with a bearing surface of the rotating crown, the incorporating on each of its internal and external cylindrical surfaces at least one ring-shaped groove intended to accommodate an O-ring seal. The ring can, additionally, by pressed against the bearing surface by positioning means exerting a thrust force on the rear face of the ring. The invention applies in particular for a system to inflate the tires of vehicles.
    Type: Grant
    Filed: July 25, 2012
    Date of Patent: September 6, 2016
    Assignee: NEXTER MECHANICS
    Inventor: Emmanuel Tajan
  • Patent number: 9234479
    Abstract: The oil control ring (1) comprises a retaining ring (2) and a scraper (3) having a scraper fin (3a), wherein the scraper (3) is arranged in the retaining ring (2) in such a way that the scraper fin (3a) is oriented towards the center (1a) of the oil control ring (1) in order to scrape oil on a piston rod (6). The scraper (3) comprises a plurality of scraper segments (3e) which are arranged in succession in the circumferential direction (1b) of the oil control ring (1), and the retaining ring (2) has a groove (2b) for accommodating the scraper segments (3a) in a positive manner, and the retaining ring (2) has an abutment point (2g). The retaining ring (2) forms at least one plastic first end face (2d, 2e) which is oriented towards the center (1a) of the oil control ring (1).
    Type: Grant
    Filed: January 23, 2012
    Date of Patent: January 12, 2016
    Assignee: BURCKHARDT COMPRESSION AG
    Inventors: Norbert Feistel, Andreas Allenspach
  • Patent number: 9150226
    Abstract: Mounting rings and methods for mounting structures to shafts are provided. The rings and methods may be used to mount other rings or housings to a shaft. The rings are characterized by having flexible inner diameters that can deflect under a radial load. The radial deflection of the inner diameter permits the rings to deflect and engage an outer diameter of a shaft. The engagement of the rings with a shaft provides at least some resistance to movement, for example, rotation and/or axial displacement, of the shaft relative to the ring and structure. In one aspect, the ring has a closed, hollow, construction, for example, a circular, oval, or polygonal closed, hollow construction. The ring may include a plurality of indentations, such as slots, on the inside diameter of the ring that may relieve at least some of the circumferential stress in the ring. Methods for using the rings to mount a structure to a shaft are also disclosed.
    Type: Grant
    Filed: June 26, 2009
    Date of Patent: October 6, 2015
    Assignee: Amsted Rail Company, Inc.
    Inventors: John E. Rode, Sean E. Strait
  • Publication number: 20150108721
    Abstract: The present invention relates to a passive shutdown sealing device (20) for a reactor coolant pump unit comprising: a split sealing ring (23) having an inactivated position in which a leakage flow is permitted and an activated position in which said ring stops said leakage flow; at least one piston (22) designed to position said split sealing ring (23) in its activated position; locking/unlocking means (25) designed to lock said at least one piston (22) in its inactivated position when the temperature of said locking/unlocking means is below a temperature threshold and to release said at least one piston (22) when the temperature of said locking/unlocking means is above said temperature threshold; elastic means (24) designed to move said at least one piston (22) when said piston is released, so as to position said sealing ring (23) in its activated position.
    Type: Application
    Filed: January 31, 2013
    Publication date: April 23, 2015
    Inventor: Romain Thuillier
  • Patent number: 8910921
    Abstract: A valve and stem sealing assembly capable of preventing leakage under demanding environmental and operating conditions. The valve comprises a body and bonnet secured together to house a flow-element, stem, and stem sealing assembly. The body may contain a body joint encapsulated within its liner. The flow-element is positioned between a first port and second port on the valve. The body and bonnet may be configured to eliminate rotational forces from being translated to the bonnet. The stem sealing assembly comprises a primary seal, primary shaft insert, spacer, and force transmitting member. The stem sealing assembly may also comprise a secondary seal and secondary shaft insert. The stem seal assembly is substantially adjacent to the stem, and configured to fit within an annular space or cavity between the stem and the first body half, second body half, and bonnet. The valve may also include a leak detection port.
    Type: Grant
    Filed: October 27, 2011
    Date of Patent: December 16, 2014
    Assignee: Aegis Flow Technologies, L.L.C.
    Inventors: Kevin W. Crochet, Sr., Norman Eger, Sidney A. Rovira, III
  • Patent number: 8870187
    Abstract: A sealing apparatus for a downhole tool having a movable member (11) which moves relative to a housing, the sealing apparatus comprising: at least one sealing member having (10A) a first position in which the sealing member is spaced from the movable member and a second position in which the sealing member (10B) is in contact with the movable member (IB) to provide a sealing barrier; and switching means for switching the sealing member between the first and second positions.
    Type: Grant
    Filed: October 3, 2008
    Date of Patent: October 28, 2014
    Inventor: Mark Murray
  • Publication number: 20140291937
    Abstract: A loading mechanism for a fluid seal that allows an installer to change or adjust the axial bias applied to a stacked set of sealing elements. The loading mechanism includes a bolt-like adjusting element that has a foot portion attached to one end and a rail element that is threadingly coupled at an opposite end. By rotating the adjusting element, the rail element can travel axially along the adjusting element. The axial displacement of the rail element allows the installer to select the amount of axial force or bias applied by the loading mechanism to the sealing elements.
    Type: Application
    Filed: March 26, 2014
    Publication date: October 2, 2014
    Applicant: A.W. CHESTERTON COMPANY
    Inventors: Michael P. GRIMANIS, Adam POWELL
  • Patent number: 8814432
    Abstract: A seal-bearing assembly to be inserted into the seal cavity of a mechanical device to provide a seal and a bearing surface to eliminate whip in a rotating and/or reciprocal cylindrical member. The seal-bearing assembly is particularly well suited for use in a reciprocal pump and between the steam lance and fixed steam tube in a sootblower. The assembly includes at least a pair of outer substantially rigid cylindrical bearings having an inner bore to be positioned over the cylindrical member and at least one complimentary flexible textile packing ring disposed between the two outer bearing members. In assemblies including an additional bearing, it is surrounded by at least one flexible packing on each side. The inner bore of the bearing members provide a bearing surface for eliminating whip of the moving elements in the device.
    Type: Grant
    Filed: March 13, 2013
    Date of Patent: August 26, 2014
    Assignee: Seal-Ryt Corporation
    Inventors: Lynne A. Thoma, Mark R. Wilkinson
  • Patent number: 8794638
    Abstract: A sealing array for positioning in an annular space between tubular members to provide a seal therebetween. The sealing array includes a pair of oppositely disposed backup rings, each defining a primary outer seal member of the sealing array. A pair of rigid cap rings is disposed between the backup rings. Each cap ring has a substantially planar surface and an oppositely disposed surface that engages one of the backup rings to energize the backup rings upon the application of sufficient pressure. The cap rings are sized to form controlled extrusion gaps with both tubular members. An energizing element is disposed between the planar surfaces of the cap rings. The energizing element engages a planar surface of at least one of the cap rings and seals the extrusion gaps associated with the engaged cap ring upon the application of sufficient pressure.
    Type: Grant
    Filed: February 27, 2009
    Date of Patent: August 5, 2014
    Assignee: Halliburton Energy Services, Inc.
    Inventors: Ira Gene Tuckness, Russell Irving Bayh, III, David Lynn Reesing
  • Publication number: 20140183826
    Abstract: The invention relates to rotating sealing device for the passage of a fluid, including at least one seal positioned between a fixed support and a crown mounted able to rotate with respect to the support. This device is characterized in that the seal is constituted by a ring mounted able to slide in a groove in the fixed support and which incorporates a front face intended to come into contact with a bearing surface of the rotating crown, the incorporating on each of its internal and external cylindrical surfaces at least one ring-shaped groove intended to accommodate an O-ring seal. The ring can, additionally, by pressed against the bearing surface by positioning means exerting a thrust force on the rear face of the ring. The invention applies in particular for a system to inflate the tires of vehicles.
    Type: Application
    Filed: July 25, 2012
    Publication date: July 3, 2014
    Applicant: NEXTER MECHANICS
    Inventor: Emmanuel Tajan
  • Publication number: 20140167364
    Abstract: A housing for a seal assembly of a pump, the housing comprising a main body having a wall section with inner and outer sides, and a bore extending through the main body between the inner and outer sides, a holder protruding from the inner side of the main body, the holder having an outer edge and a bearing face which is inclined inwardly towards the inner side, and extending from the outer edge towards the bore. There is also disclosed a lifting device for use with the housing.
    Type: Application
    Filed: February 24, 2014
    Publication date: June 19, 2014
    Applicant: Weir Minerals Australia Ltd.
    Inventor: Michael Christopher Foreman
  • Publication number: 20140161589
    Abstract: Arrangements for promoting the restriction of fluid flow along a shaft via providing a deformable ring member in an annulus between the shaft and housing. In an initial general condition, the deformable ring member permits free fluid flow in a general direction along the shaft while in a second, constricted condition, the deformable ring closes or blocks a gap or clearance normally conducive to free fluid flow to thereby restrict fluid flow. An actuation medium, which can take any of a very wide variety of forms, preferably promotes constriction of the deformable ring member directly or indirectly.
    Type: Application
    Filed: February 14, 2014
    Publication date: June 12, 2014
    Applicant: CURTISS-WRIGHT ELECTRO-MECHANICAL CORPORATION
    Inventors: David Jeffrey Janocko, Charles David Bice
  • Publication number: 20140049009
    Abstract: An intershaft seal is provided for inner and outer coaxial shafts which rotate relative to each other. The seal is located in an annular space between the shafts and maintains an axial pressure differential between a fluid pressure on the first side of the seal and a different fluid pressure on the other, second side of the seal. The seal includes a first runner which extends circumferentially around a first one of the shafts and projects therefrom into the annular space. The seal further includes a sealing ring which is coaxial with the shafts.
    Type: Application
    Filed: August 5, 2013
    Publication date: February 20, 2014
    Inventors: Ingo Henry Johannes JAHN, Christopher DAVIES
  • Patent number: 8632053
    Abstract: Movable valve apparatus having conditioned lubricating surfaces are described. An example valve includes a valve packing having a graphite packing ring disposed within a bonnet of the fluid valve and a stem or shaft has a conditioned surface to hold a lubricating material. The conditioned surface of the stem or shaft is disposed within the bonnet and moves the lubricating material relative to and in contact with the graphite packing ring during operation of the fluid valve.
    Type: Grant
    Filed: May 11, 2010
    Date of Patent: January 21, 2014
    Assignee: Fisher Controls International, LLC
    Inventors: Mark John Linser, Wilbur D. Hutchens
  • Patent number: 8622367
    Abstract: A valve packing assembly for a control valve includes a seal assembly, a loading assembly, and a packing retainer. The seal assembly has a seal component to provide a fluid seal around a valve stem and an anti-extrusion component to substantially prevent extrusion of the seal component about the valve stem. The loading assembly is configured to advantageously provide a predetermined packing stress to the seal assembly that is in the same direction as a process stress applied to the seal assembly by a process fluid, thereby substantially reducing packing friction and packing wear in the control valve assembly.
    Type: Grant
    Filed: May 12, 2011
    Date of Patent: January 7, 2014
    Assignee: Fisher Controls International LLC
    Inventors: Michel Ken Lovell, Ted Dennis Grabau
  • Patent number: 8453676
    Abstract: A valve including a valve body having a bore and a spindle received in the bore, the spindle being actuatable to open and close the valve. A compression gland seal is provided about the spindle for compression between the spindle and the bore. A first seal ring is provided about the spindle at a position spaced along the spindle from the gland seal, and provides a seal between the spindle and the bore of the valve body. A second seal ring is provided about the spindle at a position spaced along the spindle from the gland seal and the first seal ring, and provides a further seal between the spindle and the bore of the valve body.
    Type: Grant
    Filed: January 14, 2010
    Date of Patent: June 4, 2013
    Assignee: Parker Hannifin Limited
    Inventors: Robert G. Smith, Mathew William Davis, Andrew Spencer Nicholson
  • Publication number: 20130069319
    Abstract: A shaft seal arrangement includes a stuffing box defining a stuffing box central shaft opening extending around a shaft axis, packing arranged in the stuffing box around the central shaft opening, a packing gland defining a packing gland central shaft opening, and at least one adjuster assembly remotely operable to vary an engagement force between the packing gland and the packing. The adjuster assembly can be arranged around a packing gland stud and include an adjuster piston that is hydraulically operable to advance against the packing gland to vary the engagement force.
    Type: Application
    Filed: September 19, 2012
    Publication date: March 21, 2013
    Applicant: Townley Engineering and Manufacturing Company, Inc
    Inventor: Townley Engineering and Manufacturing Company,
  • Patent number: 8366114
    Abstract: A system for cooling packing material utilized for sealing a shaft moving therethrough is described. The packing material held in place by at least one packing cup, wherein a coolant is directed axially through a significant volume of each packing cup close to the packing material. The present system finds use for compressors and pumps where pressure requirements of the fluids acted upon demand the use of packing materials in close contact with the moving shafts.
    Type: Grant
    Filed: June 10, 2010
    Date of Patent: February 5, 2013
    Inventor: Daron M. Gruner
  • Publication number: 20130022460
    Abstract: An improved mechanical seal assembly is provided for hydro transport applications and other similar applications, such as large high pressure slurry pumps. This mechanical seal is used in large scale pumps having an axially adjustable shaft to accommodate high wear applications by maintaining suitable pump performance. The improved seal is a cartridge seal that includes a stationary seal adapter which is mounted to a pump casing and has a static gasket sealingly contacting a movable gland which non-rotatably supports the stationary seal rings of a mechanical seal. Additional seal rings are rotatably supported on the shaft wherein these rotatable and non-rotatable seal components are movable axially with the shaft to improve pump performance in high-wear conditions. The gland and non-rotatable seal rings are supported on and move with a bearing housing, along with the shaft and its seal rings.
    Type: Application
    Filed: September 28, 2012
    Publication date: January 24, 2013
    Applicant: Flowserve Management Company
    Inventor: Flowserve Management Company
  • Publication number: 20120313327
    Abstract: A sealing assembly for a shaft includes: a first sealing component; a first spring energizer associated with said first sealing component; an annular support member configured for supporting said first sealing component; a second sealing component; a second spring energizer associated with said second sealing component, said first and second sealing components each having a pair of seal lips, said pairs of seal lips facing each other, said first and second spring energizers each configured for energizing respectively said first and second sealing components, each said spring energizer being respectively between one said pair of seal lips, said annular support member being disposed about the shaft and positioned between said first and second sealing components and said first and second spring energizers, said annular support member including two outwardly facing protuberances each of which interfits with a respective said pair of seal lips.
    Type: Application
    Filed: June 18, 2012
    Publication date: December 13, 2012
    Inventors: Larry J. Castleman, Gregory D. Jones, Brian Bowen
  • Patent number: 8317201
    Abstract: The present invention relates to a machine arranged to operate in explosive environments, comprising a rotatable shaft (16) extending through a stationary part (10) of said machine, a gland (20) which is mounted in said stationary part (10) and which is provided with a through hole in order to accommodate said rotatable shaft (16) such that a flame path is provided between the rotatable shaft (16) and the gland (20). The invention is characterized in that the machine comprises dampening means (42) arranged between and separates the gland (16) and the stationary part (10) in the axial and radial directions such that a flame path (50, 56) is provided, the dampening means (42) maintaining the flame path (50, 56) and permitting axial and radial movement of the gland (20) in relation to the stationary part (10) upon rotation of the rotatable shaft (16).
    Type: Grant
    Filed: June 5, 2006
    Date of Patent: November 27, 2012
    Assignee: Xylem IP Holdings LLC
    Inventor: Jan Zebrowski
  • Patent number: 8276994
    Abstract: Disclosed herein are a sealing member for a master cylinder and a master cylinder having the same. The master cylinder is configured such that a communication hole of a piston is rapidly brought into communication with an oil path toward an oil tank upon release of braking. This may minimize meaningless retracting movement of the piston and delay in a braking release operation. The sealing member for the master cylinder includes an outer wing part to come into contact with the cylinder body, and an inner wing part to come into contact with the outer surface of the piston. The inner wing part includes a seal formed at a tip end thereof and at least one oil passage formed in a surface thereof opposite the outer surface of the piston.
    Type: Grant
    Filed: August 20, 2009
    Date of Patent: October 2, 2012
    Assignee: Mando Corporation
    Inventors: Wang Soo Lee, Kyu Man Lee
  • Publication number: 20120210868
    Abstract: A header ring for use in a stuffing box comprising an annular body portion of an elastomeric material, an annular radially inward projecting sealing lip portion formed on said body portion and an annular, axially facing pedestal portion formed on said body portion, said pedestal portion defining an annularly extending radially inwardly facing pedestal surface, the sealing lip portion defining an annularly extending, radially inward facing sealing surface, the sealing surface and the pedestal surface forming a juncture, at least a portion of the pedestal portion adjacent the juncture and forming the pedestal surface and at least a portion of the sealing lip portion adjacent the juncture and forming a portion of the sealing surface being comprised of a layer of reinforced elastomeric material bonded to the body portion.
    Type: Application
    Filed: April 5, 2012
    Publication date: August 23, 2012
    Applicant: UTEX INDUSTRIES, INC.
    Inventors: John A. Miller, Robert H. Ash, JR.
  • Patent number: 8181970
    Abstract: A seal assembly is provided including a pair of end rings axially spaced from one another. A pair of annular seals are each engaged with a respective one of the pair of end rings. A locking ring is engaged with each of the pair of annular seals to connect the opposing end rings and annular seals in a unitized bi-directional seal assembly.
    Type: Grant
    Filed: November 17, 2010
    Date of Patent: May 22, 2012
    Assignee: Freudenberg Oil & Gas, LLC
    Inventor: Michael A. Smith
  • Publication number: 20120025119
    Abstract: A seal arrangement for providing a fluid seal of an annulus between two conforming surfaces such as a stem and a bore. The seal arrangement may include a pair of packing support rings. Preferably, two pairs of the packing support rings are used in order to provide double ended or two sided axial support for the packing. The first and second support rings support a load on the packing during normal or rated temperature use, with preferably an interference fit with the stem to resist extrusion of the packing along the stem. The support rings may be nested together and comprises different materials. For example, one support ring may comprise metal and the other support ring comprise a softer material such as a polymer or elastomer. An example of a packing material is a fire resistant material. The metal support ring may be used to maintain load on the fire resistant packing in the event that the other support ring has been destroyed by fire or other cataclysmic event.
    Type: Application
    Filed: July 25, 2011
    Publication date: February 2, 2012
    Applicant: SWAGELOK COMPANY
    Inventors: Daniel Griffin, Demetrius Lytle
  • Patent number: 8074999
    Abstract: A dynamic sealing arrangement for preventing leakage of a fluid along a shaft includes multiple seals and pressurized barrier sealant is presented. According to one aspect, at least three seals are arranged along the shaft with pressurized barrier sealant between the first and second seals and a collection area is provided between the second and third seals to collect any leakage that might occur. Collected leakage, if any, is ported to an output port. According to another aspect, a unitary seal block member is provided that supports the dynamic sealing arrangement for the shaft and defines a piston chamber and a drilled passageway connecting the piston chamber and barrier sealant pressurization chamber between two seals. A substantial amount of plumbing is self contained in a single body minimizing the need for additional components or complexity.
    Type: Grant
    Filed: October 6, 2006
    Date of Patent: December 13, 2011
    Assignee: Woodward, Inc.
    Inventors: Wade A. Burdick, Gary M. Bowman
  • Publication number: 20110062672
    Abstract: The invention describes a leak proof shaft seal for valves and other pressurized vessels, wherein the shaft seal can deform elastically by either stretching or twisting without loosing its ability to seal all, or a portion, of said shaft from harmful fluids. Furthermore, the elastic shaft seal is immune to static pressures, since it closely surrounds a shaft and thus is protected from collapse.
    Type: Application
    Filed: September 17, 2009
    Publication date: March 17, 2011
    Inventor: Hans D. Baumann
  • Patent number: 7878113
    Abstract: A juice extractor may include a drive housing and a drive shaft extending outwardly therefrom to a juice extraction area. The juice extractor may further include a shaft seal that, in turn, includes a seal housing and at least one positioning ring contained within the seal housing and surrounding a corresponding drive shaft. The seal may also include at least one sealing ring contained within the seal housing adjacent the at least one positioning ring and surrounding the corresponding drive shaft. The at least one positioning ring may be radially spaced from the corresponding drive shaft when the corresponding drive shaft is aligned along the seal axis, and the at least one sealing ring may sealingly engage the corresponding drive shaft and be radially spaced from adjacent portions of the seal housing when the corresponding drive shaft is aligned along the seal axis.
    Type: Grant
    Filed: September 14, 2006
    Date of Patent: February 1, 2011
    Assignee: John Bean Technologies Corporation
    Inventors: Michael L. Suter, Scott Jackson
  • Publication number: 20110001293
    Abstract: A bearing of the present invention includes a slidable gasket, in which a surface thereof is formed with a slippery portion to reduce its frictional index. As such, the bearing can be disposed between two objects to reduce the friction, in which the bearing has extended service life and produces diminished noise.
    Type: Application
    Filed: July 1, 2009
    Publication date: January 6, 2011
    Inventor: Cheng Chong Chen
  • Patent number: 7846298
    Abstract: An outlet device and motor assembly for a pressured vessel is disclosed, where the assembly includes: a generally vertical drive shaft extending below and through the vessel and coupled to a rotating mechanism within the vessel; a stationary outlet housing supporting the drive shaft; a thrust bearing mounted on the outlet housing and around the drive shaft to rotationally engage the drive shaft; a hydraulic drive coupled to rotationally drive the drive shaft, and a radial bearing mounted around the drive shaft to rotationally engage the drive shaft and said radial bearing is at or below the hydraulic drive.
    Type: Grant
    Filed: April 14, 2008
    Date of Patent: December 7, 2010
    Assignee: Andritz Inc.
    Inventors: Peter E. Thorgersen, Ronald G. Bain, Keith Vogel, Tim Pease
  • Publication number: 20100239398
    Abstract: A silo includes a stuffing box forming for use with a reciprocating frame. A push-rod extends from a hydraulic cylinder through a stuffing box and a silo wall to actuate a reciprocating frame. The stuffing box forms a floating seal around the push-rod capable of moving with the push-rod to accommodate misalignment.
    Type: Application
    Filed: March 17, 2009
    Publication date: September 23, 2010
    Applicant: Schwing Bioset, Inc.
    Inventor: Charles G. Brey
  • Publication number: 20100194053
    Abstract: A gasket and packing panel assembly comprises a packing panel that forms a stuffing box about a trunnion/shaft. A backing ring about the trunnion/shaft is connected to the packing panel and moves in an axial direction relative to the trunnion/shaft, reducing an axial dimension of the stuffing box. A gasket is located in the stuffing box. The gasket comprises a resilient body from which at least one lip seal projects towards the trunnion/shaft. The lip seal contacts the trunnion/shaft when the backing ring applies a pressure on the gasket. A gasket for use as a seal inside the stuffing box is also provided.
    Type: Application
    Filed: February 2, 2010
    Publication date: August 5, 2010
    Inventors: Jacques GOURDE, David MARCHAND, Jocelyn GAGNON
  • Patent number: 7717433
    Abstract: A dynamic seal assembly for a rotating member comprising a first split housing carrying a first split seal, a second split housing carrying at least one second split seal, each split seal being resiliently closed so that sealing contact is maintained when the rotating member wobbles. The free ends of the second split seal overlap with one another in either a side-by-side relationship or an over-under relationship, or both.
    Type: Grant
    Filed: May 3, 2007
    Date of Patent: May 18, 2010
    Assignee: Equistar Chemicals, LP
    Inventors: James E. Taylor, Milton R. Hertel
  • Publication number: 20100102516
    Abstract: A mechanical packing system for use for a device allows one or more packing rings to be installed one at a time and die formed in place. A reversible, detachable flange having a key offset from the center is inserted into a key slot of the hub of the mechanical packing system which is also offset during this installation process. When the device is operated, the flange is detached from the hub rotated 180° and the key of the flange is then inserted into the key slot of the hub. A spacer with integral lantern ring and internal bore surface which reduces or prevents marring or galling. A stuffing box of sufficient length to eliminate the need for a spacer or unneeded packing rings.
    Type: Application
    Filed: October 28, 2009
    Publication date: April 29, 2010
    Inventor: Gary D. Robertson
  • Publication number: 20100085832
    Abstract: A mixer arrangement includes a mixer bowl, an agitator within the mixer bowl and a shaft extending through a wall of the mixer bowl for moving the agitator. A seal assembly is associated with the shaft at an external side of the mixer bowl wall. The seal assembly includes a boot component disposed about the shaft, the boot component formed of a resiliently compressible material. A boot compression component is disposed about the shaft and moveable along the shaft between a seal position that urges the boot component toward the mixer bowl wall and a release position away from the boot component. A linkage is connected to the boot compression component and has an over center orientation for holding the boot compression component in the seal position.
    Type: Application
    Filed: September 30, 2009
    Publication date: April 8, 2010
    Applicant: IIIinois Tool Works Inc.
    Inventor: Dale K. Wells
  • Patent number: 7618045
    Abstract: The invention pertains to a sealing arrangement 10, 10a, which acts between a housing 12 and a component 14 installed in the housing 12, with a stop 16, permanently connected to the housing 12; with a spring 20, which is supported on the stop 16; and, with at least one first sealing element 22 in working connection with the spring 20. Abutment 34 is designed to be adjusted against the force of the spring such that the spring 20 is completely compressed—squeezed into a block—and additional load can be exerted on the sealing element 22, so that in particular any leakage which has developed can be stopped—on an emergency basis—by the exertion of additional load on the sealing element 22, which has the effect of increasing the sealing force which the sealing element 22 exerts.
    Type: Grant
    Filed: September 10, 2004
    Date of Patent: November 17, 2009
    Assignee: Samson AG
    Inventors: Hoffmann Heinfried, Eugen Nebel
  • Patent number: 7578495
    Abstract: The present invention is a leak prevention system that monitors and detects loosening of a valve. The leak prevention system includes a biasing member, a tightening member, and a pulling member. The biasing member has a first end and a second end, the first end being in communication with the tightening assembly, while the second end being in communication with the pulling assembly. The tightening assembly is carried by the valve, is adapted to tighten the packing nut should packing from the valve loosen. The pulling assembly is adapted to pull the tightening assembly via the biasing member after packing wears away, such that the wearing away loosens the tightening assembly and the constant force of the biasing member, supported by the pulling assembly, causes the tightening assembly to move. After packing has worn away, a visual indication can indicate to an operator that the valve may soon leak.
    Type: Grant
    Filed: September 19, 2006
    Date of Patent: August 25, 2009
    Assignee: The Southern Company
    Inventor: Damon Eric Woodson
  • Publication number: 20090001670
    Abstract: A stuffing-box assembly has a shaft element having an outer surface centered on an axis and a housing element surrounding the shaft element and having an inner surface also generally centered on the axis. One of the elements is shiftable axially and rotatable about the axis relative to the other of the elements. The packing itself is formed by a resilient inner sleeve between the surfaces and having an inner surface engageable with the outer surface of the shaft element and an outer surface formed with a pair of frustoconical surfaces and a resilient outer sleeve between the surfaces and having an outer surface engageable with the inner surface of the housing element and an inner surface formed with a pair of axially offset frustoconical surfaces complementary to and engaging the frustoconical surfaces of the inner sleeve.
    Type: Application
    Filed: June 25, 2008
    Publication date: January 1, 2009
    Inventors: Manfred SETT, Werner Heinze
  • Publication number: 20080265519
    Abstract: The present invention relates to a machine arranged to operate in explosive environments, comprising a rotatable shaft (16) extending through a stationary part (10) of said machine, a gland (20) which is mounted in said stationary part (10) and which is provided with a through hole in order to accommodate said rotatable shaft (16) such that a flame path is provided between the rotatable shaft (16) and the gland (20). The invention is characterized in that the machine comprises dampening means (42) arranged between and separates the gland (16) and the stationary part (10) in the axial and radial directions such that a flame path (50, 56) is provided, the dampening means (42) maintaining the flame path (50, 56) and permitting axial and radial movement of the gland (20) in relation to the stationary part (10) upon rotation of the rotatable shaft (16).
    Type: Application
    Filed: June 5, 2006
    Publication date: October 30, 2008
    Inventor: Jan Zebrowski
  • Publication number: 20080007012
    Abstract: In an anticorrosion device of a hydraulic cylinder in which a seal groove partitioned with a plurality of compartments is formed at an inner side of a head cover, with a wiper seal, a rod seal and a buffer seal being disposed in the groove, and a portion between a tube and a rod of a hydraulic cylinder is sealed for thereby preventing the air from inputting from the space into the interior of a tube, there is provided an anticorrosion device of a hydraulic cylinder which comprises a seal member which is mounted on a groove near the space among the compartments and slides along an outer surface of the rod; and a packing ring which is elastically and closely contacted with an outer side of the seal member for sealing the groove.
    Type: Application
    Filed: May 25, 2007
    Publication date: January 10, 2008
    Inventor: Yoon Hyun Jeong
  • Patent number: 7216872
    Abstract: The invention relates to a seal for use with a pipe and flange assembly. The seal is intended to prevent leakage during axial movement of the pipe relative to a flange. The invention comprises a central cylindrical elastomeric member located between two circular elastomeric end rings.
    Type: Grant
    Filed: October 28, 2005
    Date of Patent: May 15, 2007
    Assignee: Oceaneering International, Inc.
    Inventors: Michael N. A. Shaw, Bruce A. Wallace
  • Patent number: 7118114
    Abstract: A dynamic sealing arrangement for preventing leakage of a fluid along a shaft includes multiple seals and pressurized barrier sealant. According to one aspect, at least three seals are arranged along the shaft with pressurized barrier sealant between the first and second seals and a collection area is provided between the second and third seals to collect any leakage that might occur. Collected leakage, if any, is ported to an output port. According to another aspect, a unitary seal block member is provided that supports the dynamic sealing arrangement for the shaft and defines a piston chamber and a drilled passageway connecting the piston chamber and barrier sealant pressurization chamber between two seals. A substantial amount of plumbing is self contained in a single body minimizing the need for additional components or complexity.
    Type: Grant
    Filed: May 15, 2003
    Date of Patent: October 10, 2006
    Assignee: Woodward Governor Company
    Inventors: Wade A. Burdick, Gary M. Bowman
  • Patent number: 7114726
    Abstract: A seal cartridge for a centrifugal pump includes a housing that fits within a conventional stuffing box of the pump and has a cylindrical internal surface receiving the shaft. A pair of annular grooves are provided internally of the housing adjacent respectively opposite ends thereof. Each groove receives an O-ring that runs in contact with the sleeve when the shaft rotates. The sleeve, housing and O-rings define an annular chamber through which water is circulated to cool and lubricate the O-rings. The water is pressurized to cause the O-rings to deform and seal against the sleeve.
    Type: Grant
    Filed: August 25, 2003
    Date of Patent: October 3, 2006
    Assignee: AV Cell Inc.
    Inventor: James Daniel Murray
  • Patent number: 6948287
    Abstract: The invention concerns a permanently functional gap seal on structures, in particular building structures, which ensures a reliable seal against penetrating moisture, this being achieved in that the cover layer has a profile which can be adapted to an installation situation over a joint or on an inner or outer corner and has a central part and side wings disposed on both sides of the central part, and in that at least the side wings have contact surfaces for contacting a sealant.
    Type: Grant
    Filed: June 11, 2001
    Date of Patent: September 27, 2005
    Inventor: Doris Korn
  • Patent number: 6921081
    Abstract: According to the invention a seal—arranged between a radially inwardly facing outer boundary surface of an annular sealing gap and a radially outwardly facing inner boundary surface of the sealing gap—is characterized by a sealing ring having a sealing surface which bears sealingly against one of the boundary surfaces of the sealing gap and having a pressure surface which on the side of the sealing ring in radially opposite relationship to the sealing surface forms with the other of the boundary surfaces of the sealing gap an intermediate space which is wedge-shaped in cross-section, and a pressure ring which is biased by a biasing means at least at times into the intermediate space against the other of the boundary surfaces of the sealing gap and the pressure surface for pressing the sealing surface against the one boundary surface of the sealing gap.
    Type: Grant
    Filed: January 11, 2002
    Date of Patent: July 26, 2005
    Inventor: Aloys Wobben
  • Patent number: 6834862
    Abstract: A sealing system to be inserted into the seal cavity of a rotary mechanical device to provide a seal and a bearing surface to eliminate whip in a rotating shaft. The sealing system includes a split bushing element to allow easy installation over the shaft. The bushing is substantially cylindrical with an inner bore closely approximating the outer diameter of the shaft and includes a groove at the motor end on the outer surface and a corresponding groove on the inner surface to provide a lantern ring. Seal water openings are provided between the outer groove and inner groove of the bushing. Generally, two or three packing rings are added on the motor side to complete the shaft sealing system for installation in the seal cavity.
    Type: Grant
    Filed: January 23, 2002
    Date of Patent: December 28, 2004
    Inventor: Mark R. Wilkinson