Circumferential Contact Seal For Other Than Piston Patents (Class 277/500)
  • Patent number: 10394271
    Abstract: A force feedback handle device with a degree-of-freedom includes: a driving part (1), a link part (2) and a frame part (3); wherein the driving part (1) and the link part (2) are both installed on a top board (9), and a rotation axis of the link part (2) coincides with a rotation axis of the driving part (1); the driving part (1), the link part (2) and the frame part (3) are fixed and connected by bolts. A working method of the force feedback handle device includes four steps. The force feedback device of the invention has low inertia and high stiffness performance, which improves overall interaction performance of the force feedback device. The structure is simple and a manufacturing cost is low.
    Type: Grant
    Filed: May 4, 2017
    Date of Patent: August 27, 2019
    Inventors: Yuru Zhang, Dangxiao Wang, Hongdong Zhang, Jian Song, Xiaohan Zhao
  • Patent number: 10316613
    Abstract: An oilfield tubular, such as a stinger (1), designed to be installed in a tubing hanger (2) in an XMT (Christmas tree) located on the sea bed, is presented. The oilfield tubular (1) is exposed to the production bore (4) pressure, and includes axial sealing means (6) located on an end (1a) of the tubular (1). The axial sealing means (6) includes a metal c-ring seal (6a), which metal c-ring seal (6a) is smaller in cross section than the thickness (t1) of the oilfield tubular wall (1c). The opening (6b) of the metal c-ring seal (6a) is facing the high pressure side of the production bore (4). This pressure tend to expand the c-profile to firm engagement with contacting surfaces.
    Type: Grant
    Filed: June 8, 2016
    Date of Patent: June 11, 2019
    Inventors: Stuart Spitz, Lukasz Topolski
  • Patent number: 10316676
    Abstract: A sealing device for sealing between coaxial shafts of a turbomachine, the sealing device including an elastic ring having a circular central opening allowing a sliding connection with an internal shaft, an external surface configured to engage with an internal surface of a portion of an external shaft, two retaining components situated one on either side of the elastic ring and allowing the elastic ring an axial clearance, wherein the elastic ring is a profile section.
    Type: Grant
    Filed: December 12, 2013
    Date of Patent: June 11, 2019
    Inventor: Jonathan Boris Baptista
  • Patent number: 10248167
    Abstract: An electronic device includes a housing, a heat dissipation assembly and a blocking member. The housing has a dissipation portion. The heat dissipation portion includes a plurality of heat dissipation holes. The heat dissipation assembly is disposed in the housing. The heat dissipation assembly includes a plurality of heat dissipation fins. A channel is formed between every two adjacent heat dissipation fins. The channel has an air intake and an air outlet. The position of the air outlet is corresponded to the position of the heat dissipation portion. A surface is formed between the air intake and the air outlet. The blocking member is disposed at the surface position adjacent to the air outlet and abutted against the periphery of the heat dissipation portion.
    Type: Grant
    Filed: March 9, 2018
    Date of Patent: April 2, 2019
    Inventors: Tzu-Chiu Huang, Juei-Chi Chang
  • Patent number: 10224522
    Abstract: A sealing assembly for a battery, a method of preparing the sealing assembly and a lithium ion battery are provided. The sealing assembly for a battery comprises: a ceramic ring (3) having a receiving hole (31), a metal ring (4) fitted over the ceramic ring (3) for sealing an open end of the battery, and a column (2) formed in the receiving hole (31) which comprises a metal-metal composite (21), wherein the metal-metal composite (21) comprises: a metal porous body, and a metal material filled in pores of the metal porous body.
    Type: Grant
    Filed: December 26, 2012
    Date of Patent: March 5, 2019
    Inventors: Qing Gong, Xinping Lin, Longfei Zhou, Weifeng Zhang
  • Patent number: 10174629
    Abstract: A sealing assembly for a bearing compartment of a gas turbine engine includes a shaft and a seal plate mounted to the shaft. The shaft is configured to rotate about a longitudinal axis of the gas turbine engine. The seal plate includes an annular body, scoop, sealing surface, plurality of teeth, and channel. The scoop is connected to and extends radially from the annular body. The scoop defines a lip and an annulus surrounding the shaft and is disposed on a first axial end of the annular body. The sealing surface is disposed on a second axial end of the annular body opposite from the scoop. The plurality of teeth are disposed into and along an outer perimeter of a portion of the annular body. The channel extends through a portion of the annular body and is fluidly connected to the scoop and to the sealing surface.
    Type: Grant
    Filed: September 11, 2017
    Date of Patent: January 8, 2019
    Assignee: United Technologies Corporation
    Inventors: Christopher M. Valva, Todd A. Davis, Joseph D. Walker
  • Patent number: 10174634
    Abstract: A device for lubricating a turbomachine rolling bearing includes a rolling bearing mounted between an internal component and an external component. The bearing has rolling elements mounted between an outer ring secured to the external component and an inner ring secured to the internal component. The internal component includes at least one first duct for the passage of oil for supplying the internal ring of the bearing with oil, wherein the internal component is a stator component and at least one first duct is connected to an oil supply source configured to deliver the oil at a pressure high enough that this oil can be conveyed as far as the rolling elements of the bearing.
    Type: Grant
    Filed: June 15, 2015
    Date of Patent: January 8, 2019
    Inventors: Catherine Pikovsky, Tewfik Boudebiza
  • Patent number: 10159910
    Abstract: The invention relates to a sealing mechanism and to a method which forms the basis for the former and in which a clamping ring which loads a sealing element compensates for an operationally induced change in the volume which is available for the sealing element, as a result of which the sealing action of the sealing element can be maintained reliably even in the case of high operating pressures.
    Type: Grant
    Filed: September 12, 2014
    Date of Patent: December 25, 2018
    Inventors: Richard Schloderer, Michael Wohner
  • Patent number: 10120271
    Abstract: A light source assembly, an imaging device and an imaging method are provided. The light source assembly comprises a light source component emitting a first light beam; a fluorescent excitation device receiving the first light beam and exciting a second light beam; a coupling device receiving an incident light beam and coupling the incident light beam into a third light beam, wherein the incident light beam includes the second light beam or includes the second light beam and the first light beam. The imaging device comprises the above-mentioned light source assembly and a projection system receiving the third light beam. The imaging method comprises: generating a first light beam; exciting a second light beam by using the first light beam; coupling the second light beam into a third light beam or coupling the second light beam and the first light beam into a third light beam; and imaging with the third light beam.
    Type: Grant
    Filed: September 3, 2015
    Date of Patent: November 6, 2018
    Inventors: Huan Wang, Yuting Yang, Mookeun Shin
  • Patent number: 10100672
    Abstract: A component for a gas turbine engine includes a compartment housing that redirects oil from at least one passage in a rotational component onto a backside of a seal land.
    Type: Grant
    Filed: March 7, 2014
    Date of Patent: October 16, 2018
    Assignee: United Technologies Corporation
    Inventors: Garth J Vdoviak, Jr., Gary L Grogg
  • Patent number: 10024350
    Abstract: A pin connection for a machine is provided that comprises a structural member that defines a pin receiving bore, a bearing housing that defines a bearing receiving bore, a self-lubricating bearing that defines a pin receiving bore, and a pin that is disposed in the bores of the bearing and the structural member. The pin connection may further comprise a seal assembly that is disposed in the bearing receiving bore of the bearing housing, the seal assembly comprising a micro-cellular closed cell foam member and a first rigid member.
    Type: Grant
    Filed: January 20, 2016
    Date of Patent: July 17, 2018
    Assignee: Caterpillar Inc.
    Inventors: David J. Yanska, Aaron Kenneth Amstutz, Sunil I Mathew, Darren B. Antoine
  • Patent number: 9999920
    Abstract: A metal composite comprises: a matrix comprising periodic metal springs; and a filler material comprising one or more of the following: a carbon composite; a polymer; a metal; graphite; cotton; asbestos; or glass fiber; wherein the filler material is bounded to the matrix via one or more of the following: a mechanical interlocking; a chemical bond; a solid solution; or an active layer disposed between the periodic metal springs and the filler material.
    Type: Grant
    Filed: April 2, 2015
    Date of Patent: June 19, 2018
    Inventors: Zhiyue Xu, Chengjiao Yu, Lei Zhao, Ke Wang
  • Patent number: 9989083
    Abstract: A seal and bearing assembly of a gas turbine engine having an engine case with a cooling fluid nozzle located between a bearing outer ring and ring segments, and a rotary shaft for rotation in the engine case around a main axis, the seal and bearing assembly can be assembled by positioning the engine case and the rotary shaft in axial alignment, and axially moving the engine case relative to the rotary shaft including moving the bearing outer ring across the axial location of the runner portion and into an assembled condition. The rotary shaft having mounted thereon a bearing inner ring and a runner assembly having a runner portion, a sleeve portion being concentric and radially internal to the runner portion, and a cooling fluid passage having a radial segment leading from an outgoing segment to a returning segment extending in a direction leading back toward the bearing inner ring.
    Type: Grant
    Filed: June 22, 2015
    Date of Patent: June 5, 2018
    Inventor: Michel Labbe
  • Patent number: 9919686
    Abstract: A disc brake for a motor vehicle, wherein it is possible to displace the actuating piston in the housing both by hydraulic pressure activation of a hydraulic chamber formed in the housing and via a mechanical actuator, wherein the sealing ring is accommodated in an annular groove formed in the housing. Provision is made here for the annular groove to have a groove floor, which runs substantially parallel to the longitudinal axis of the piston, and two groove walls, which adjoin the groove floor, wherein—as seen in the direction of the longitudinal axis of the piston—a first groove wall is directed away from the hydraulic chamber and a second groove wall is directed towards the hydraulic chamber, wherein the first groove wall merges into the groove floor via a rounded or bevelled transition region at a varying distance from the longitudinal axis of the piston.
    Type: Grant
    Filed: July 22, 2014
    Date of Patent: March 20, 2018
    Assignee: Lucas Automotive GmbH
    Inventors: Peter Stahl, Boris Kuhnert, Christian Damrau, Christian Tharr, Dietrich Podzuweit, Maria Heinemann, Martin Brandt, Nong Dang, Michael Schog
  • Patent number: 9746032
    Abstract: A sealing arrangement (14a) on an axial roller bearing (10) which includes two race rings (12, 13) with rolling elements (4) guided therebetween, the sealing arrangement (14a) sealing off a rolling element chamber (16) of the axial roller bearing (10). The sealing arrangement (14a) has, as reinforcement, a rotationally symmetrical reinforcing sleeve (15a) that externally encloses both race rings (12, 13), the sealing arrangement (14a) being fixed in position by at least one securing section (20a), and some sections of the reinforcing sleeve (15) being covered by or connected to an elastic sealing material (17), in a connected manner, in sealing sections (19a, 19b) of said sealing arrangement (14a).
    Type: Grant
    Filed: December 11, 2013
    Date of Patent: August 29, 2017
    Inventors: Alexander Happ, Wilhelm Walter
  • Patent number: 9631508
    Abstract: A contact seal assembly for a shaft of a gas turbine engine includes a seal runner adapted to be connected to the shaft and rotatable relative to a carbon ring. The seal runner includes concentric inner and outer annular portions radially spaced apart to define at least one internal fluid passage between the inner and outer annular portions of the seal runner.
    Type: Grant
    Filed: June 13, 2013
    Date of Patent: April 25, 2017
    Inventors: Daniel Blais, Alain Lewis, Alain C. Martel
  • Patent number: 9568013
    Abstract: A method for axial support of a pump or compressor rotor shaft during start-up or shut-down of a vertical fluid displacement module for subsea operation including a motor and a pump or compressor. Lubrication fluid is momentarily supplied for hydrostatic operation of hydrodynamic thrust bearing(s) from a topside or land-based fluid supply via a flow control module arranged in conjunction with a subsea pressure control unit configured for controlling the supply and discharge of barrier and lubrication fluids to/from the fluid displacement module.
    Type: Grant
    Filed: May 30, 2014
    Date of Patent: February 14, 2017
    Assignee: Vetco Gray Scandinavia AS
    Inventor: Ole Petter Tomter
  • Patent number: 9546524
    Abstract: Implementations described herein include a hoisting device and method for handling, coupling and recovery of tubular members such as drill string components. The hoisting device has a self-energizing gripping means configured to releasably engage a drill string component. In one aspect, the self-energizing gripping means can be operable to increase at least one of a radial biasing force and a contact friction force applied to a drill string component, causing the gripping means to increase the overall gripping force applied to the component with minimal effort exerted by a hoisting device operator.
    Type: Grant
    Filed: February 27, 2014
    Date of Patent: January 17, 2017
    Assignee: Longyear TM, Inc.
    Inventors: Christopher L. Drenth, Jeff Hogan, Anthony LaChance
  • Patent number: 9523390
    Abstract: A rolling bearing with seal ring includes an outer ring having an inner-diameter side, an inner-circumferential surface, and an outer ring raceway formed on the inner-circumferential surface. A seal ring fastened to an axial end portion of the inner-circumferential surface of the outer ring. The inner ring has a first axial end surface on a first side and the outer ring has a second axial end surface on the first side. The first axial end surface is flat and is recessed from the second axial end surface of the outer ring in the axial direction of the rolling bearing. The seal ring is formed into a circular ring shape and includes a seal lip that is made of an elastic material and has a tip-end edge having a sliding contact with the first axial end surface of the inner ring; and a metal core that reinforces the elastic material.
    Type: Grant
    Filed: March 8, 2016
    Date of Patent: December 20, 2016
    Assignee: NSK LTD.
    Inventors: Dai Itou, Satoshi Oyama
  • Patent number: 9404374
    Abstract: A vane shroud for a gas turbine engine has a cylindrical shaped body and a hole arranged at a circumference of the body. The hole is for receiving a trunnion from a variable vane. A counterbore is arranged concentrically around the hole on a radially inward facing surface of the body, and receives a trunnion hub from the variable vane. A shrink-fit insert is seated into the counterbore such that the trunnion hub is provided with a contact surface, and the shrink-fit insert is secured to the shroud through an interference fit.
    Type: Grant
    Filed: April 9, 2008
    Date of Patent: August 2, 2016
    Assignee: United Technologies Corporation
    Inventors: Mark E. Addis, George H. Reynolds
  • Patent number: 9222582
    Abstract: A valve assembly is described herein that includes a valve plate and a main valve contacting the valve plate, the main valve having an internal rigid structure and an outer shell, the internal rigid structure having a top surface, a bottom surface, and a side surface.
    Type: Grant
    Filed: March 15, 2013
    Date of Patent: December 29, 2015
    Assignee: Mueller International, LLC
    Inventor: Paul Gifford
  • Publication number: 20150137458
    Abstract: In a stern tube sealing device, slurry contained in outboard water is suppressed from depositing on sliding portions between a wall surface of a seal ring chamber or an outer peripheral surface of a propeller shaft and a sealing surface of a seal ring. A first seal ring (121) is arranged in a first seal ring chamber (111), and a second seal ring (122) is arranged in a second seal ring chamber (112) which is formed at an inboard side of the first seal ring chamber. The first seal ring chamber and the second seal ring chamber are in communication with each other through the sliding portions between a wall surface of the first seal ring chamber and a sealing surface (121a) of the first seal ring. Outboard water is filled into the first seal ring chamber, and clear water is filled into the second seal ring chamber.
    Type: Application
    Filed: July 8, 2013
    Publication date: May 21, 2015
    Applicant: EAGLE INDUSTRY CO., LTD.
    Inventors: Kenichi Saito, Hiroyuki Sada
  • Patent number: 9027934
    Abstract: Due to increasingly strict requirements and regulations, it is becoming more and more important for piston compressors to reduce the amount of leakage of operating medium through the seal of the piston rod. Conventional seals comprising packing rings and/or packing ring combinations always have a certain amount of leakage, both during operation and when at standstill, which is why they are not usable for certain applications, or the complexity involved in such a seal increases considerably. A further problem involving the seals of piston rods relates to transverse movements by piston rods during which the sealing action of the seal must be maintained. Proposed is, therefore, a sealing arrangement according to the principle of a sealing medium barrier providing that the sealing elements 8, 9 are arranged in radial direction at a distance relative to the radial end of the recess 10 that receives the sealing elements 8, 9.
    Type: Grant
    Filed: January 11, 2010
    Date of Patent: May 12, 2015
    Assignee: Hoerbiger Kompressortechnik Holding GmbH
    Inventors: Tino Lindner-Silwester, Christian Hold, Andreas Brandl, Christian Kernbichler
  • Publication number: 20150115544
    Abstract: A seal assembly includes an annular static sealing member disposed within an annular channel in a housing or shaft. An annular dynamic sealing member is disposed coaxially within or about the static member and has a circumferential sealing surface engageable with the shaft or housing. An annular biasing member is disposed radially between the static and dynamic sealing members and is configured to bias the dynamic sealing member radially to maintain engagement of the sealing surface and the shaft or housing. The static member is configured to prevent relative angular displacement between the static and biasing members and the dynamic member is configured to prevent relative angular displacement between the dynamic and biasing members. As such, the dynamic sealing member, the biasing member and the static sealing member angularly displace within the channel as a single unit when torque above a particular magnitude is applied to the dynamic sealing member.
    Type: Application
    Filed: October 28, 2013
    Publication date: April 30, 2015
    Inventors: Raymond Lee Chaplin, Tiberio J. Gonzalez, Tyler James Ryther
  • Patent number: 9016693
    Abstract: A packing seal for a reciprocating pump of the type typically used in connection with oil and gas drilling operations is described. Generally, the seal includes a rigid L shaped cartridge that carries an outer wiper and an O-ring on an exterior wall and a recessed seal body on an interior wall. The recessed seal body is of dual durometer, and its lower portion is constantly urged against the cylinder wall in self-sealing fashion. The seals, cartridge and wiper may be formed from rigid and/or non-rigid materials having low coefficients of friction and physical properties comprising low abrasion and wear resistance. The seal provides an improved self-lubricated unitary seal that is convenient to replace in the field regardless of the torque delivered to the gland nut of a packing box, which contains the seal.
    Type: Grant
    Filed: January 24, 2013
    Date of Patent: April 28, 2015
    Assignee: FAST Group-Houston Inc.
    Inventors: Lee Shek, Brian James, Cathy G. Edgington, Scott Schuette, Hung Nguyen, Kurt Hayden
  • Publication number: 20150097343
    Abstract: A retractable assembly and a sealing system, the sealing system comprising: an essentially hollow, cylindrical housing with an inner space and a peripheral groove open to the inner space in the housing. The peripheral groove defines a plane in the housing and the normal of the plane is parallel to the longitudinal axis of the housing. The groove includes at least one, preferably two, extension spaces expanding the groove. The extension space is arranged on the side of the groove facing away from the inner space. An annular seal corresponding to the groove is arranged in the groove. The annular seal is formed of at least a first section facing the inner space and a second section facing away from the inner space.
    Type: Application
    Filed: October 6, 2014
    Publication date: April 9, 2015
    Inventors: Ingrid Wunderlich, Thomas Pfauch
  • Patent number: 8992213
    Abstract: An apparatus for sealing a fan drive shaft in a vacuum heat treating furnace is disclosed. The sealing apparatus includes a housing having an annular body and a central opening. An inflatable first seal surrounds the central opening of the annular body. A second seal surrounds the central opening and is adjacent to the inflatable first seal. The sealing apparatus also includes a channel formed in the annular body adjacent to the second seal for conducting a purging fluid into the central opening. A means for injecting the purging fluid into the central opening is operably connected to the channel. A vacuum heat treating furnace and a fan drive system incorporating the sealing apparatus are also described.
    Type: Grant
    Filed: February 3, 2010
    Date of Patent: March 31, 2015
    Assignee: Ipsen, Inc.
    Inventors: Craig Moller, Werner Hendrik Grobler, Jake Hamid
  • Publication number: 20150076768
    Abstract: An arrangement for sealing a propeller shaft of a marine vessel are specifically applicable in preventing oil leakage via propeller shaft sealing in cases where the draught of a marine vessel is, for some reason, reduced beyond its ordinary value.
    Type: Application
    Filed: April 17, 2012
    Publication date: March 19, 2015
    Inventors: Arnoud De Kruijf, Rik Roemen, Minoru Takayasu, Bart Van Der Ven, Joost Van Eijnatten, Masahiko Yotsuyanagi
  • Patent number: 8973357
    Abstract: A hub seal assembly includes a hub having a groove with a first radial wall, a first floating seal including a second radial wall, and a resilient element. The first floating seal is axially displaced by the resilient element so that the second radial wall contacts the first radial wall. In an example embodiment, the first floating seal includes polytetrafluoroethylene. In some example embodiments, the resilient element is an o-ring. In an example embodiment, the first floating seal includes a circumferential groove or a notch and the o-ring is at least partially disposed in the groove or the notch.
    Type: Grant
    Filed: July 14, 2011
    Date of Patent: March 10, 2015
    Assignee: Schaeffler Technologies AG & Co. KG
    Inventor: Patrick Lindemann
  • Publication number: 20150063981
    Abstract: A device for sealing the coaxial shafts of a turbomachine includes an annular seal able to perform sealing by contact with the outer shaft, and a lubricating device to lubricate the region of contact between the annular seal and the outer shaft.
    Type: Application
    Filed: March 8, 2013
    Publication date: March 5, 2015
    Inventors: Arnaud Jean-Marie Pierrot, Serge Rene Morreale
  • Publication number: 20150048573
    Abstract: An inwardly tensioning plain compression ring for sealing a rotating part with respect to a fixed part. The plain compression ring separates a positive pressure region from a low pressure area and has, in reference to the circumference, two opposite ends, designed as a joint or lock and which can be connected. A radial, inner circumferential surface, or at least at an axial circumferential surface of the plain compression ring has a ring shape lubrication groove for accommodating a supplied lubricant which comes from the positive pressure region. The plain compression ring has at least one ring shaped lubrication groove which is not completely circular, but has a closed end and an open end. The open end of the lubrication groove opens into an overflow area which is in flow connection with a leakage area of the joint or the lock.
    Type: Application
    Filed: March 12, 2013
    Publication date: February 19, 2015
    Inventor: Jurgen Mayer
  • Publication number: 20150001016
    Abstract: A contaminant mitigation device for use with a slack adjuster for a railway brake rigging to protect the critical operating area of the slack adjuster. The critical operating area of a slack adjuster includes the components that are configured to operate together to adjust the brake rigging. The slack adjuster includes at least a main housing portion, a cone nut housing portion enclosing the critical operating area of the slack adjuster, and an overtravel housing portion. The contaminant mitigation device includes a sealing system configured for cooperating with at least one of the main housing portion, cone nut housing portion, and overtravel housing portion to seal the critical operating area against entrance of fluid and/or contaminants therein and/or to at least reduce the exposure of this area to fluid and/or contaminants. The contaminant mitigation device can also include a drainage system associated therewith.
    Type: Application
    Filed: June 26, 2014
    Publication date: January 1, 2015
    Inventors: Shaun T. Whalen, Peter Paul Gregar, Scott Lee Natschke, Wajih Kanjo, Michael Koziol
  • Patent number: 8915483
    Abstract: A valve comprising a valve housing with a valve bonnet, an inlet opening and an outlet opening, the valve bonnet having a passage for a valve stem, the passage having a sidewall and the valve stem comprising a valve disk for closing the valve by bringing the valve disk in contact with a valve seat in the valve housing, the passage in the valve bonnet comprising at least a first section with a first cross sectional area and a second section with a second cross sectional area that is smaller than the first cross sectional area. The sidewall in the passage is in direct contact with the valve stem at the second section with the second cross sectional area.
    Type: Grant
    Filed: June 15, 2011
    Date of Patent: December 23, 2014
    Assignee: Alfa Laval Corporate AB
    Inventors: Jens Christian Folkmar Andersen, Karsten Schack Madsen, Louise Wichmann Agner
  • Patent number: 8910947
    Abstract: A method is provided for forming a seal element on a substrate surface. A layer of base material is formed on the substrate surface and a plurality of crenellations are formed in the layer of base material prior to forming a layer of seal material on the crenellated layer of base material. The method may be applied to making an original seal element or to repairing an existing seal element. The resulting seal includes a layer of base material bonded to a substrate and having a plurality of crenellations formed in a face surface of the layer of a base material and a layer of a seal material bonded thereto, the seal material filling the crenellations.
    Type: Grant
    Filed: March 30, 2010
    Date of Patent: December 16, 2014
    Assignee: United Technologies Corporation
    Inventors: Donald Voisine, William Bogue
  • Publication number: 20140353914
    Abstract: In described embodiments, a seal assembly for sealing a space between a shaft and a housing is provided. The shaft has a shaft centerline. The seal assembly has an outer portion connectable to the housing and an inner portion extending radially inwardly from the outer portion toward the shaft. The inner portion has a generally concave cavity. A generally annular sealing member is releasably inserted into the cavity. The sealing member has a shaft contact surface engageable with the shaft. A method of removing and replacing the sealing member is also provided.
    Type: Application
    Filed: May 31, 2013
    Publication date: December 4, 2014
    Inventor: Yefim Epshetsky
  • Publication number: 20140346738
    Abstract: A seal apparatus, for sealing around a rotating shaft such as a propeller shaft of a watercraft between the exterior water and an interior lubricant space, includes a multiple seal arrangement with plural seal rings forming seal chambers therebetween, and plural fluid medium lines supplying and/or returning a respective fluid medium to a respective seal chamber. A section of a first medium line is formed as an axial passage through a housing of the apparatus, and a section of a second medium line is formed by a pipe arranged within the axial passage in the housing. A method of making such an apparatus especially by retrofitting an existing seal arrangement involves inserting a pipe into an axial passage in the housing in order to establish two medium lines through the housing where there was previously only one medium line.
    Type: Application
    Filed: May 22, 2014
    Publication date: November 27, 2014
    Inventors: Mathias RUSCH, Joerg BRAND, Marko WRAGE, Nils BOETTCHER
  • Publication number: 20140348642
    Abstract: A device including a conjoined laminate interface seal shaped for reducing inter-seal gap (e.g., an angled gap, an ‘L’-shaped gap, etc.) leakage in gas turbines is disclosed. In one embodiment, a seal device for a gas turbine includes: a first flange shaped to be disposed within a first slot of a first arcuate component and a first adjacent slot of a second arcuate component; a conjoined layer connected to a first surface of the first flange, the first surface configured to face a working fluid flow of the gas turbine; and a second flange shaped to be disposed within a second slot of the first arcuate component and a second adjacent slot of the second arcuate component, the second flange including a second surface connected to the conjoined layer.
    Type: Application
    Filed: May 2, 2013
    Publication date: November 27, 2014
    Applicant: General Electric Company
    Inventor: General Electric Company
  • Publication number: 20140341768
    Abstract: A sealing device includes a relatively dimensionally stable, elongated friction and/or wear element and an elastically-deformable elongated sealing element which rests lenghtwise on the friction and/or wear element. The friction and/or wear element encompasses the sealing element at the ends of the friction and/or wear element.
    Type: Application
    Filed: November 29, 2012
    Publication date: November 20, 2014
    Inventors: Thilo Mauser, Andreas Nuetzel
  • Publication number: 20140319773
    Abstract: A shaft sealing assembly for creating a seal between a shaft and a stationary housing comprising: the shaft sealing assembly including a case and a sealing assembly within the case; the case having an inner seal surface diameter within which the shaft is located and within which the sealing assembly located; the case having an outside diameter which may be engaged to the stationary housing; the sealing assembly having an inner seal circumferential surface and an outer seal circumferential surface with the inner seal circumferential surface being engaged to a circumferential surface of the shaft, wherein the sealing assembly remains stationary on the shaft and the outer seal circumferential surface being slidably engaged to the inner seal surface diameter of the case.
    Type: Application
    Filed: April 26, 2013
    Publication date: October 30, 2014
    Inventor: Crosby HOFF
  • Publication number: 20140319779
    Abstract: A plurality of concave portion to be spaced apart from each other in a circumferential direction through a pillar portion is formed in an inner circumferential side of a side surface of a seal ring mounted in a shaft groove formed in an outer circumferential surface of a shaft. The concave portion including a deepest portion, and two inclined portions, connects the inclined portion positioned at an opposite side in a rotational direction and the adjacent pillar portion with a curved surface having a shape convex, and further, makes a width in the circumferential direction of the inclined portion of the rotational direction side smaller than a width in the circumferential direction of the inclined portion of the opposite side in the rotational direction.
    Type: Application
    Filed: December 19, 2012
    Publication date: October 30, 2014
    Inventors: Junya Nagai, Mika Saito, Tomoya Shibano
  • Publication number: 20140286693
    Abstract: A machine system includes a first component, a second component, and a joint assembly pivotably connecting the first and second components in a finite angular pivoting range. A boot seal seals between the first and second components, and has a rest configuration where the boot seal has a curvilinear taper, and is deformable to a squished configuration forming a radially outward bulge. The radially outward bulge stores an energy of compression of the boot seal, to bias a sealing ring in the boot seal against the second component.
    Type: Application
    Filed: March 21, 2013
    Publication date: September 25, 2014
    Applicant: Caterpillar, Inc.
    Inventors: Sunil I. Mathew, Hong Lian, Craig D. Goeppinger, Brian C. Wright
  • Publication number: 20140271288
    Abstract: A thermal actuator for a rotating shaft shutdown seal that has a piston with a portion of its axial length enclosed within a chamber shell with a material that expands upon a rise in temperature. The portion of the actual length of the piston within the chamber has at least two different diameters with the larger diameter leading in the direction of travel of the piston. Upon a rise in temperature, expansion of the material surrounding the piston within the chamber creates a force on the piston in the desired direction of travel. Below a preselected temperature the piston is positively locked with a passive release when the preselected temperature is reached.
    Type: Application
    Filed: August 20, 2013
    Publication date: September 18, 2014
    Inventors: Phillip J. Hawkins, Judith E. Hodgson
  • Publication number: 20140265151
    Abstract: The disclosure describes a circumferential seal applicable to turbine engines. The circumferential seal includes a ceramic runner, an annular seal ring, at least one tolerance ring, and a pair of sealing rings. The runner is circumscribed about a shaft or a carrier within a recess along the shaft and is bounded by a shoulder and a clamping ring. At least one non-sealing spring mechanism is disposed between and directly contacts the shoulder and the first end of the runner. A second end of the runner directly contacts the clamping ring. In other embodiments, at least one non-sealing spring mechanism is disposed between and directly contacts the second end and the clamping ring and the first end directly contacts the shoulder. An anti-rotation element is attached to the clamping ring, carrier, or shaft and extends into a slot or hole or slot along the runner. The spring(s) applies a biasing force onto the runner toward the clamping ring or shoulder.
    Type: Application
    Filed: May 13, 2013
    Publication date: September 18, 2014
    Applicant: Stein Seal Company
    Inventor: Thurai Manik Vasagar
  • Publication number: 20140246835
    Abstract: A component is disclosed. The component includes a base body with a first end section and a second end section. The first end section has a first locking protrusion with a first guide surface and a first guide section with a first support surface. The second end section has a second guide section with a second guide surface and a second locking protrusion with a second support surface. The first guide surface is contactable with the second guide surface with respect to a guide plane and the first support surface is contactable with the second support surface with respect to the guide plane such that the first locking protrusion is engageable with the second locking protrusion in a locked position.
    Type: Application
    Filed: July 20, 2012
    Publication date: September 4, 2014
    Applicant: MTU Aero Engines AG
    Inventors: Frank Stiehler, Lars Schellhorn
  • Patent number: 8821140
    Abstract: A gear pump having double-helical gears with bearing assembly seals and gear end seals which provided double seal interfaces between the pump cavity and bearing cups having disposed therein bearing assemblies for supporting pump shafts for rotation. The double seal interfaces preclude pumped fluid, particularly contaminated fluid including entrained abrasives from making contact with the bearing assemblies. An adjustable packing seal mechanism, a gear gap adjustment mechanism, a fluid pressure relief system, and pump heat exchanger features are also disclosed.
    Type: Grant
    Filed: April 29, 2010
    Date of Patent: September 2, 2014
    Inventors: Dan Paval, Ivan Polancec
  • Publication number: 20140225325
    Abstract: A sealing system for process gas leakage from a turbomachine casing is provided. The sealing system may include a seal assembly housing coupled to or integral with the turbomachine casing. The seal assembly housing defines a bore configured to receive a rotary shaft and a sealing assembly. The sealing assembly includes a plurality of carbon rings mounted circumferentially about the rotary shaft. The plurality of carbon rings may include an inboard carbon ring configured to prevent flow of a separation gas inboard of the barrier seal, an outboard carbon ring configured to prevent flow of contaminates into the seal assembly housing, and an intermediate carbon ring interposed between the inboard carbon ring and outboard carbon ring. A pressure differential is maintained across the inboard carbon ring, such that the separation gas is prevented from flowing inboard across the inboard carbon ring by a residual portion of a seal gas.
    Type: Application
    Filed: February 4, 2014
    Publication date: August 14, 2014
    Inventors: Patrice Bardon, Raphael Bridon, Wee Sen Ng, William Runyan
  • Publication number: 20140225331
    Abstract: An operating-lever sealing structure has an operating lever turnably attached to a housing of a switch, a shaft portion projected immediately below a guard portion of the operating lever that is turnably supported in an operation hole made in a bottom surface of a fitting recess of the housing, and a sealing ring that is sandwiched between the bottom surface of the fitting recess and a ceiling surface of the guard portion of the operating lever.
    Type: Application
    Filed: January 30, 2014
    Publication date: August 14, 2014
    Inventors: Akihiro Hozumi, Taiki Koyama, Minoru Kobayashi
  • Publication number: 20140219588
    Abstract: A sealing or bearing structure for sealing or separating moving surfaces is provided. The sealing or bearing structure includes a main body that defines a body axis going through the main body. A contact surface is configured to slidingly contact another surface, such as a rod, and defines a contact axis that is parallel to the body axis. At least one geometric surface feature, such as a shaped edge, is located between the body axis and the contact axis. The geometric surface feature has an entry angle that is less than 5 degrees relative to the contact axis.
    Type: Application
    Filed: February 6, 2014
    Publication date: August 7, 2014
    Inventor: Timothy J. McCulfor
  • Publication number: 20140219591
    Abstract: The present application relates to an apparatus for preparing a food stuff. The apparatus has a main body (2) with a rotating shaft (4) and a container (3) in which a food stuff is placed which has a tubular member (8) upstanding in the container with an opening (9) at a free end. The shaft is receivable in the tubular member and forms a fluid seal with the shaft.
    Type: Application
    Filed: August 15, 2012
    Publication date: August 7, 2014
    Inventor: Werner Karl Murbacher
  • Patent number: 8794636
    Abstract: A self-sealing flexible seal includes a seal component A and a seal component B, each being hollow ball-like. In the portion of two pole parts of the each seal component, there is one annular opening per pole. The form of two seal components is similar figures, and two seal components are formed from a flexible material. The seal component A is arranged on the outside of the seal component B. The seal component A and the seal component B are arranged by a two-sheet pile, and are arranged in the state where it moreover contacted. Each of the seal component A and the seal component B possesses the slits of N pieces which have similar figures, the form of each slit is the form prolonged from the near side of the annular opening to the near side of another annular opening.
    Type: Grant
    Filed: December 12, 2010
    Date of Patent: August 5, 2014
    Assignee: Urakami LLC
    Inventor: Fukashi Urakami