Circumferential Contact Seal For Other Than Piston Patents (Class 277/500)
  • 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
    Assignee: SCHAEFFLER TECHNOLOGIES AG & CO. KG
    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
    Assignee: PRATT & WHITNEY CANADA CORP.
    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
    Applicant: AKTIEBOLAGET SKF
    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
    Applicant: WARTSILA FINLAND OY
    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 ā€˜Lā€™-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
    Applicant: WESTINGHOUSE ELECTRIC COMPANY LLC
    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
    Applicant: DRESSER-RAND COMPANY
    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
    Applicant: OMRON CORPORATION
    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
    Applicant: TRELLEBORG SEALING SOLUTIONS US, INC.
    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
    Applicant: KONINKLIJKE PHILIPS N.V.
    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
  • Publication number: 20140203519
    Abstract: A seal protection system for use with protecting a seal assembly between a motor housing and a final drive assembly. The seal protection system includes a seal protector assembly having a first band portion and a second band portion. The first band portion is removably attached to the second band portion. Further, a compressible element is provided as a continuous resilient layer along an outer edge section of the first and second band portions. The first band portion and the second band portion are structured and arranged in a manner to overlay the seal assembly in a first position. Moreover, the first band portion and the second band portion are structured and arranged to separate relative to the seal assembly in a second position. In addition, the compressible element is disposed between the first and second band portions and one of the motor housing or the final drive assembly.
    Type: Application
    Filed: March 25, 2014
    Publication date: July 24, 2014
    Applicant: Caterpillar Inc.
    Inventors: ABHISHEK KUMAR GAURAV, ABHISHEK KUMAR MISHRA, ANTONY GRIEG JOSEPH
  • Publication number: 20140205429
    Abstract: An energy diffusion sealing ring [872] for use with a hydrocyclone or pump is provided. The energy diffusion sealing ring [872] comprises a sacrificial suspension matrix [872A] comprised of a polymer, elastomer, or combination thereof, and a number of packed inserts [872B] suspended in the matrix [872]. The matrix [872] serves as delivery means for the inserts [872B] into one or more recessed portions [833, 841]. The inserts [872B] comprise a hard material (e.g., ceramic or carbide) and form wear bodies which slow and dissipate kinetic energy of escaping slurry by way of creating paths of resistance. As the suspension matrix [872A] erodes over time, a plurality of interstices [872C] between the inserts [872B] are formed. Escaping slurry [852] slows as it traverses three-dimensional serpentine paths defined by said interstices [872C], thereby reducing its potential to wear surrounding components.
    Type: Application
    Filed: August 10, 2012
    Publication date: July 24, 2014
    Inventors: Travis Harwell, Robert G. Moorhead
  • Publication number: 20140203518
    Abstract: An elastomeric seal (20), such as a shaft seal for automotive vehicle applications, includes an elastomeric compound (22) chemically coupled to a metal sealing ring (24) and is formed without an oven post curing step. The elastomeric seal (20) provides exceptional physical properties, similar to those of elastomeric seals of the prior art formed with an oven post curing step. The elastomeric seal (20) has an elastic modulus of 6.0 MPa to 13.0 MPa and a tensile strength of 11.1 MPa to 14.8 MPa. The elastomeric compound (22) includes 52.0 to 68.0 wt. % fluoroelastomer, 20.0 to 35.0 wt. % calcium silicate, and 5.0 to 15.0 wt. % diatomite. The elastomeric compound (22) is fully cured and chemically coupled to the metal sealing ring (24) during the compression or injection molding step, and thus an oven post curing step is not required.
    Type: Application
    Filed: January 24, 2013
    Publication date: July 24, 2014
    Inventors: Junfeng Bian, Roger Holliday, Bhawani Tripathy
  • Publication number: 20140197679
    Abstract: A mechanical drive seal housing includes a lubricant reservoir to supplement the amount of available lubricant. The lubricant is used to cool a seal having two halves. The seal halves include complimentary textures configured to move and retain lubricant. A drive axle includes a stationary shaft and a wheel hub rotatably connected to the stationary shaft. A metal face seal is located at an interface between the stationary shaft and the wheel hub. A stationary seal half of the metal face seal is located in a mechanical drive seal housing which includes a lubricant reservoir to supplement the amount of available lubricant.
    Type: Application
    Filed: January 11, 2013
    Publication date: July 17, 2014
    Applicant: Siemens Industry, Inc.
    Inventors: Todd R. Morman, Stephen Tressel, Matthew Douville
  • 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: 20140175755
    Abstract: A shaft seal includes an elastomeric component that includes a plurality of anti-rotation features spaced intermittently about a circumference of the elastomeric component, and a seal contact component that is bonded to the elastomeric component. Each of the plurality of anti-rotation features is a rib structure. The rib structure of each of the plurality of anti-rotation features may extend from adjacent the outer diameter face and widen toward the inner diameter face, or may extend from adjacent the inner diameter face and widen toward the outer inner diameter face, to form substantially a tear drop shape. A shaft seal assembly includes the described shaft seal, and an application housing structure including a bore that receives at least a portion of the shaft seal. The seal contact component is received within the bore, and the application housing structure is configured to rotate relative to the shaft seal.
    Type: Application
    Filed: December 12, 2013
    Publication date: June 26, 2014
    Inventor: Berndt L. Luchs
  • Publication number: 20140175757
    Abstract: A seal component for a shaft seal assembly includes an elastomeric element and a substrate, wherein the seal component has an over-molded configuration in which the elastomeric element is over-molded onto the substrate. In one embodiment, the elastomeric element includes a pair of flexible arms that are compressible about an apex to energize the seal component. In another embodiment, the shaft seal assembly includes twist lock retention features for retaining the seal component within the housing structure. The seal component includes a plurality of locking features, and a plurality of cooperating locking slots is provided in the housing structure that respectively receive the locking features of the seal component. Specifically, when the seal component is rotated relative to the housing structure from an initial position to a second locked position, the locking features are compressed within the locking slots of the housing structure in the second locked position.
    Type: Application
    Filed: December 12, 2013
    Publication date: June 26, 2014
    Inventors: Berndt L. Luchs, Max Ellison
  • Patent number: 8757633
    Abstract: A seal (200) of substantially wedge shaped cross section self adjusts and seals pivot joints (100) over a range of gap widths to be sealed.
    Type: Grant
    Filed: April 25, 2008
    Date of Patent: June 24, 2014
    Assignee: Deere & Company
    Inventors: Timothy Allen Klousia, Mark Wayne Stender, Matthew Edward Banowetz, Orena Dee Young, Jeffery Frank Olsen
  • Publication number: 20140147301
    Abstract: A seal section for use in a downhole submersible pumping system includes a housing and a seal bag located within the housing. The seal bag includes a substrate having a plurality of substrate surfaces and a metal coating layer on at least one of the plurality of substrate surfaces. The substrate can optionally be configured as a cylindrical form that includes an interior surface and an exterior surface. In particularly preferred embodiments, the substrate is seamless and fabricated from an extruded fluoropolymer. The metal coating layer preferably comprises a metal selected from the group consisting of titanium, stainless steel, nickel, chrome, silver and gold. The metalized seal bag exhibits increased durability and decreased permeability to liquids and gases at elevated temperatures.
    Type: Application
    Filed: November 28, 2012
    Publication date: May 29, 2014
    Applicant: GE OIL & GAS ESP, INC.
    Inventors: Brian Paul Reeves, Chengbao Wang, Steven Alan Howell
  • Publication number: 20140137753
    Abstract: A seal guard (1) for incorporation in a whisk type milk frother (20), including: a hub bushing (2) defining an elongate drive shaft passage (4) that has a central axis (A) which extends in an axial direction (L) pointing from a first end (2a) of the hub bushing to a second end (2b) of the hub bushing; an annular rim (10) that, seen in the axial direction (L), is disposed downstream of the second end (2b) of the hub bushing (2); and a plurality of spokes (8) interconnecting the second end (2b) of the hub bushing (2) and the annular rim (10).
    Type: Application
    Filed: July 2, 2012
    Publication date: May 22, 2014
    Applicant: Koninklijke Philips N.V.
    Inventors: Arjan Slot, Pieter Herman Klokman, Mathijs Niehaus, Falco Gerrit Olivier
  • Patent number: 8727355
    Abstract: A semiconductor fabrication device welded bellows of an accordion structure is characterized in that a plurality of annular bellows plates having faces curving in a radial direction are connected alternatingly at the outside diameter side and inside diameter side, wherein the annular bellows plates are provided with a treatment-side bellows plate and a non-treatment-side bellows plate, a gas layer disposed between the two bellows plates, the treatment-side bellows plate being of lesser thickness, and the non-treatment-side bellows plate being of greater thickness. The bellows are highly resistant to damage caused by foreign matter; or, in the unlikely case that the treatment-side bellows plate becomes damaged, the damage can be compensated for by the non-treatment side bellows plate.
    Type: Grant
    Filed: March 9, 2012
    Date of Patent: May 20, 2014
    Assignees: Eagle Industry Co., Ltd., EagleBurgmann Japan Co., Ltd.
    Inventors: Hidekazu Takahashi, Masahiko Inoue, Hiroyuki Ochiai
  • Publication number: 20140125012
    Abstract: A compressible sealing ring assembly seals an annulus between a radially outer member and a radially inner member. The sealing ring comprises one or more sealing ring members (28), a radially outer wall for sealing with the inner wall of the radially outer member and radially inner wall for sealing with the outer wall of the radially inner member. A compression ring member (10) having a concave lower surface and a convex upper surface exerts an axial force on a sealing ring member to deform the sealing ring member to maintain a seal.
    Type: Application
    Filed: November 5, 2012
    Publication date: May 8, 2014
    Applicant: PGI INTERNATIONAL, LTD.
    Inventor: Ricardo Lee
  • Publication number: 20140117623
    Abstract: An apparatus includes a rotatable shaft having a shaft surface and a first seal disposed in a sealing engagement with the shaft surface. At least a second seal is disposed in a first position relative to the rotatable shaft where the second seal is not in sealing engagement with the shaft surface and is movable to a second position relative to the rotatable shaft where the second seal is in sealing engagement with the shaft surface.
    Type: Application
    Filed: October 31, 2012
    Publication date: May 1, 2014
    Applicant: Canrig Drilling Technology Ltd.
    Inventors: Eric Deutsch, Michael Macklin, Beat Kuttel
  • Publication number: 20140117627
    Abstract: An assembly for sealing a shaft, which shaft is arranged in a container filled with a liquid melt consisting of aluminum or an aluminum alloy, passes through an opening in a wall of the container, and rotates about a shaft axis and/or moves back and forth in the direction of the shaft axis, including at least one annular sealing element that encompasses the shaft. The at least one annular sealing element is made of carbon, a ceramic material, or a metal material and is arranged outside of the container, and the shaft is provided with a coating made of carbon, a ceramic material, or a metal material in the encompassing area of the at least one annular sealing element, wherein the wear resistance of the coating on the shaft is the same as or higher than the wear resistance of the at least one annular sealing element.
    Type: Application
    Filed: May 9, 2012
    Publication date: May 1, 2014
    Applicant: RHEINFELDEN ALLOYS GMBH & CO. KG
    Inventor: Rudiger Franke