Material Other Than Metal Patents (Class 277/556)
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Patent number: 11852240Abstract: A rotational seal assembly is associated with a rotating component. The rotational seal includes an outer casing, an inner casing, a rotational seal connected to the outer casing and the inner casing, and a followability enhancer. A section of the rotational seal includes a heel portion and a toe portion. The rotational seal is configured to contact, via a first surface of the section of the rotational seal and during operation of the rotating component, the rotating component. The followability enhancer is configured to contact, during the operation of the rotating component, a first region of a second surface of the section of the rotational seal that is associated with the toe portion. The followability enhancer is configured to not contact, during the operation of the rotating component, a second region of the second surface of the section of the rotational seal that is associated with the heel portion.Type: GrantFiled: February 24, 2022Date of Patent: December 26, 2023Assignee: Caterpillar Inc.Inventors: Elmer S Zanoria, Hong Lian, Keith Harmeyer, Daniel Joshua Smith
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Patent number: 11629785Abstract: A radial lip seal includes a sealing lip body having a contact point defining an inner diameter of the radial lip seal, and a heelstock body defining an outer diameter and having a supporting section arranged radially inwardly relative to the outer diameter and extending along a boundary of the sealing lip body toward the contact point. The heelstock body is formed of a heelstock material that is flexible, and the heelstock material is stiffer relative to a material of the sealing lip body.Type: GrantFiled: March 2, 2020Date of Patent: April 18, 2023Assignee: Parker-Hannifin CorporationInventor: Jesse D. Slagell
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Patent number: 11512778Abstract: A rotary seal seals a high-pressure region from a low-pressure region and has an assembly sleeve made of a rubber elastic material and at least one pressure-activatable rotary seal element with a seal edge. When a specified differential pressure value is exceeded, the seal edge of the rotary seal element rests sealingly against the seal surface of a machine part, thereby directly displacing a support element elastically supported on the rubber elastic assembly sleeve. When the specified differential pressure value is undershot, the support element is moved rearwards axially in the direction of the high-pressure region such that the seal edge of the rotary seal element is moved backwards into the seal edge rest position in which the rotary seal element lies against the seal surface without contact surface pressure or substantially without contact surface pressure or is arranged at a distance from the seal surface.Type: GrantFiled: November 19, 2018Date of Patent: November 29, 2022Assignee: Trelleborg Sealing Solutions Germany GmbHInventors: Holger Jordan, Mandy Wilke
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Patent number: 11242931Abstract: A sealing ring assembly for connection of an exhaust gas cooler to a coolant line may include a carrier ring composed of a plastic, a sealing ring composed of a sealing material connected to the carrier ring; and a heat protection element connected to the carrier ring and surrounding the carrier ring on a radial outer side defining an air gap therebetween.Type: GrantFiled: May 6, 2019Date of Patent: February 8, 2022Inventors: Oliver Grill, Achim Herber
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Patent number: 10830357Abstract: The present disclosure relates to advanced materials, particularly single crystal grain structures including the formation of single crystal grain structures. Single crystal grain structures offer improved mechanical properties when used with individual components. Improving mechanical properties is favorable for components that are used in applications with high temperature, pressure, and stress. In these applications, mechanical failure is extremely undesirable. Individual components, such as seals, can be designed with a single crystal grain structure in a preferred direction. By selecting a preferred direction, and orienting the single crystal grain structure accordingly, the single crystal grain structure can improve the component's mechanical properties. Single crystal grain structure seals and the method of forming the seals, therefore, offer various improvements to individual components, specifically when the components are designed for high temperature, pressure, and stress applications.Type: GrantFiled: April 24, 2015Date of Patent: November 10, 2020Assignee: RAYTHEON TECHNOLOGIES CORPORATIONInventors: Michael G. McCaffrey, Jeffrey M. Wittman, Dilip M. Shah, Alan D. Cetel, Timothy M. Davis, Mark J. Rogers
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Patent number: 10794490Abstract: A seal includes a support ring; a sealing ring locked with the support ring to form an enclosed space therebetween, the sealing ring including at least one seal lip; and an energizer held in the enclosed space and contacting the sealing ring.Type: GrantFiled: January 30, 2018Date of Patent: October 6, 2020Assignee: Trelleborg Sealing Solutions US, Inc.Inventor: John J. Mountz
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Patent number: 10577959Abstract: The seal arrangement for a mid turbine frame of a gas turbine, especially an aircraft gas turbine, includes a tubular fluid duct, especially an oil duct, which extends along an axial direction, a bearing sleeve surrounding the fluid duct radially outside and in the peripheral direction, and at least one seal ring arranged between fluid duct and bearing sleeve in the radial direction, this ring being arranged around the fluid duct. The seal ring is taken up at least partly in a groove provided in the bearing sleeve.Type: GrantFiled: September 14, 2017Date of Patent: March 3, 2020Assignee: MTU Aero Engines AGInventors: Willem Bokhorst, Fabian Moritz
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Patent number: 10487943Abstract: A multi-ply seal ring includes an inner seal ring and an outer seal ring. The inner seal ring includes a plurality of discrete inner ring segments disposed circumferentially about an axis in an annular array. The inner ring segments are arranged end-to-end within the annular array. The inner seal ring is engaged with and nested within the outer seal ring. In addition or alternatively, the outer seal ring may include a plurality of discrete outer ring segments disposed circumferentially about the axis in an annular array.Type: GrantFiled: July 12, 2016Date of Patent: November 26, 2019Assignee: United Technologies CorporationInventors: Timothy M. Davis, Jeffrey M. Wittman, Jose R. Paulino
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Patent number: 10474515Abstract: An electronic device includes one or more integrated circuits, a debugging translation block, and a bus connected to the one or more integrated circuits and the debugging translation block, the bus configured to provide a connection to one or more external devices, wherein the debugging translation block is configured to receive debugging commands from a testing host device via the bus, convert the debugging commands into debugging input data, and provide the debugging input data to a debugging state machine of a first integrated circuit of the one or more integrated circuits.Type: GrantFiled: May 10, 2017Date of Patent: November 12, 2019Assignee: Intel IP CorporationInventors: Baraa Al-Dabagh, Dongsheng Bi, Roi Uziel
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Patent number: 10052748Abstract: The sealing device includes an inner sealing ring including an annular inner sealing portion provided with a sealing lip intended to cooperate in a sealed manner with the outer surface of a striking piston of a hydraulic percussion apparatus, and an outer sealing element mounted around the inner sealing portion and intended to bear in a sealed manner at the bottom of an annular housing arranged on a guide body of the hydraulic percussion apparatus. The inner sealing ring further includes an annular protective portion axially shifted relative to the inner sealing portion and internally delimited by at least one converging protective surface, annular and converging towards the sealing lip, and an annular groove opening into the inside the inner sealing ring, the annular groove being disposed between the sealing lip and the converging protective surface.Type: GrantFiled: October 11, 2013Date of Patent: August 21, 2018Assignee: MONTABERTInventor: Michel Escolle
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Patent number: 9951870Abstract: A wiper for the sealing arrangement of a cylinder arrangement having a cylinder and a piston rod, having a support lip facing in the direction of the space that is to be sealed off, and a wiper lip facing towards the surroundings, as well as a holding element from which the support lip and the wiper lip protrude, wherein the free end of the wiper lip is bent in the direction of the piston rod.Type: GrantFiled: April 14, 2016Date of Patent: April 24, 2018Assignee: CARL FREUDENBERG KGInventors: Kristian Mueller-Niehuus, Hans-Werner Guenther
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Patent number: 9845801Abstract: A new header ring useful in downhole packing sets automatically cleans the cylinder plunger wall during use and forms an improved seal having long duration. The new header ring has a ring shaped body. The body includes a side wall defining an open top, an open bottom, and an inner wall portion with an inner wall surface for contacting a plunger. The inner wall portion includes an outwardly extending annular undercut, which defines an overhang and radius that helps wipe clean the plunger wall and form a better seal. The body also has an outer wall portion with an outer wall surface for contacting a stuffing box wall. The outer wall has a flat upper portion, a flat lower portion, and an outwardly sloped annular middle portion connecting the top and lower portions. The outer wall also has an inwardly extending annular ledge formed in its bottom. The inner wall portion is formed from a high wear resistance elastomer, and the outer wall portion is formed from a nonabrasive elastomer.Type: GrantFiled: January 3, 2013Date of Patent: December 19, 2017Assignee: Fast Group-Houston, Inc.Inventor: Lee Shek
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Patent number: 9841108Abstract: An inside-type mechanical seal is mounted between a rotating shaft and a housing, and adapted for preventing leakage of a sealed fluid from an outer circumference of a sliding surface in the direction of an inner circumference thereof, wherein provided are a rotary-side sealing ring mounted on a rotating shaft side, a stationary-side sealing ring mounted on a seal case side, an annular packing for pushing the stationary-side sealing ring toward the rotary-side sealing ring, a holding part on the outer circumferential side being fitted in the seal case, and a seal lip part on the inner circumferential side being in close contact with the stationary-side sealing ring, and wherein provided to the seal case is a ring-shaped projection abutting against a back surface of the packing during assembly of the mechanical seal, and adapted for pushing the packing toward the stationary-side sealing ring.Type: GrantFiled: April 27, 2012Date of Patent: December 12, 2017Assignees: EAGLE INDUSTRY CO., LTD., EAGLEBURGMANN JAPAN CO., LTD.Inventors: Hiroshi Aoike, Takeshi Ikarashi
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Publication number: 20130193649Abstract: A shaft seal that is preferably a radial shaft seal has a sealing element of polyfluorocarbon that is provided with a sealing lip. The sealing element contacts a surface to be sealed under a radial force action acting in a radial direction of the shaft seal. An elastomer element is provided that is acting on the sealing lip and loads the sealing lip in a direction toward the surface to be sealed. The elastomer element supports the sealing element. The sealing element is resting flat on a face of the elastomer element, wherein the face is facing away from a medium side of the shaft seal.Type: ApplicationFiled: January 18, 2013Publication date: August 1, 2013Applicant: KACO GMBH + CO. KGInventor: KACO GMBH + CO. KG
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Patent number: 8042422Abstract: A sealing element for sealing off a drive unit, having a radial shaft sealing ring that has a radial sealing face for sealing off from a first component and a diametrically opposed radial sealing lip for sealing off from a further rotatable component, in which an axial sealing ring for axial sealing of a third component is integrally formed onto the radial shaft sealing ring.Type: GrantFiled: January 30, 2006Date of Patent: October 25, 2011Assignee: Robert Bosch GmbHInventor: Christian Meyer
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Patent number: 7828299Abstract: Systems and methods associated with a fluid-activated shaft seal are provided. The systems, which feature multiple components, include a support component defining an exterior surface, a carrier component including an interior surface to slideably engage the exterior surface of the support component, and a seal disposed relative to the carrier component. The seal includes a lip portion and a fluid-responsive gel material that expands when exposed to a fluid to urge the lip portion towards or into contact with a shaft. The gel material contracts in the absence of the fluid to form or increase the size of a gap between the shaft and the lip portion. Methods of assembling and installing such a system are also described.Type: GrantFiled: June 6, 2008Date of Patent: November 9, 2010Assignee: MIDE Technology CorporationInventors: Marthinus van Schoor, David Gilbert, Andrew Cutler, Steven Klepper
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Publication number: 20100084824Abstract: An oil seal for reciprocation motion including a seal main body, a resin backup ring, and a holding member. The seal main body includes a seal lip that can be in sliding contact with a reciprocating shaft. The backup ring is disposed such as to support the seal lip from the atmosphere side to ensure durability of the seal lip. In the backup ring, at least a single annular groove is provided on the inner peripheral surface opposing the reciprocating shaft. The annular groove can hold a lubricating material. The holding member holds the backup ring between the holding member and the seal main body in a sandwiched-state. The inner peripheral surface of the backup ring forms a taper that increases in diameter from a sealed side towards an atmosphere side in the axial direction.Type: ApplicationFiled: September 4, 2007Publication date: April 8, 2010Inventors: Kazuyoshi Horiba, Kazuhiko Yonezawa, Shinichi Sumimoto, Seiji Miyazawa
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Publication number: 20080309024Abstract: A sealing element for a shaft, in particular a crank shaft of an internal combustion engine, with a sealing lip made of a polymer material, which in operation is arranged on said shaft to be funnel-shaped towards the sealed space, and which comprises, in a section in contact with said shaft, a conveying structure to return leaking medium back into the sealed space, wherein said sealing lip comprises, on the opposite side, at least one structure running substantially in the axial-radial direction which leads to the formation of a leakage channel in case said sealing lip is turned inside out towards the atmosphere side.Type: ApplicationFiled: June 16, 2008Publication date: December 18, 2008Inventor: Michael vom Schemm
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Patent number: 7399157Abstract: In a cooling module arrangement with a seal element for a motor vehicle having an engine including a cooling fan with a fan housing component connected to the engine and a fan cowl component connected to a radiator of the motor vehicle with a gap provided between the fan housing and the fan cowl components, wherein a sealing element is connected to one of the components and includes in the area of its free end a circumferential bead, so that, in a pre-installation position, it is firmly held folded back onto the one component so as to facilitate installation of the components but, when unfolded, extends in its operative position across the gap between the components and firmly engages with its free end the other component.Type: GrantFiled: October 7, 2005Date of Patent: July 15, 2008Assignee: Daimler AGInventors: Jochen Tonhaeuser, Willi Weber
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Patent number: 7134669Abstract: A sealing ring has an annular disk with at least one fastening part secured on a first machine part and at least one sealing part that, when the sealing ring is mounted, sealingly rests against a second machine part. The annular disk is fastened without intermediate positioning of a supporting body on the first machine part. The sealing ring is a rotary shaft seal, a piston seal ring, or a rod seal. One of the first and second machine parts is stationary and the other one of first and second machine parts is moveable. A first bonding layer is attached to the annular disk, and the annular disk is connected with the first bonding layer to the first machine part. The first bonding layer is an adhesive layer.Type: GrantFiled: November 10, 2003Date of Patent: November 14, 2006Assignee: KACO GmbH & Co.Inventor: Klaus-Jürgen Uhrner
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Patent number: 6910692Abstract: A composite elastomeric seal for sealing fluid line members is provided. The composite seal comprises an outer U-shaped seal body and an inner elastomeric portion. The U-shaped seal body comprises inner and outer extending arms, each arm having a shaped contour and two protruding lip portions. One set of lips of the outer seal wraps around the inner elastomeric portion, and the other set of lips provides an auxiliary seal for sealing the fluid line members together. The invention further includes sealing assemblies that employ the composite seals.Type: GrantFiled: March 20, 2003Date of Patent: June 28, 2005Assignee: Precix, Inc.Inventors: Carol Malone, Donald Maher
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Patent number: 6883804Abstract: Seal for the static or dynamic sealing of joints, machine parts or other components or structures such as may be found in choke, kill, or other auxiliary line strings for marine oil or gas well risers, hydraulic or pneumatic cylinders or other actuators. The seal may have a U-cup or solid geometry profile including a secondary sealing lip on both the inner and outer diameter thereof which functions as a wiper for the exclusion of outside contaminants, such as seawater, from joint sealed.Type: GrantFiled: May 16, 2003Date of Patent: April 26, 2005Assignee: Parker-Hannifin CorporationInventor: Larry Cobb
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Patent number: 6726219Abstract: The air damper includes a piston reciprocating within a cylindrical housing. The piston includes a lip seal which is coated with a minimum of 0.5%/seal part weight graphite powder/molybdenum disulfide. This provides for increased smoothness of operation of the air damper, particularly at low speeds.Type: GrantFiled: September 2, 1999Date of Patent: April 27, 2004Assignee: Illinois Tool Works Inc.Inventor: Steven L. Bivens
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Patent number: 6688603Abstract: A radial shaft sealing ring, comprising a sealing member made of plastics, especially PTFE compound material, and including a sealing lip which has a portion in sealing engagement with the surface of a shaft towards the medium side is characterized in that a contact pressure means is provided at the medium side of the sealing lip for applying a force with a radially inwardly directed component to said portion of the sealing lip, keeping it pressed against the surface of the shaft.Type: GrantFiled: February 20, 2002Date of Patent: February 10, 2004Assignee: Dichtungstechnik G. Bruss GmbH & Co.Inventor: Michael vom Schemm
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Patent number: 6607197Abstract: A sealing device for sealing the gap between two relatively moving members is provided with a pivot point on its cross-sectional perimeter. As pressure against the seal increases, the seal rotates about the pivot point, resulting in an increased sealing surface area on the seal. Additionally, a recess is provided on the cross sectional perimeter, advantageously offering a more frictionless sealing relationship between the seal and the moving member. Further, a recess is provided on outer portion of the cross sectional perimeter on a surface of the seal that would contact an energizer ring, the recess eliminating a dynamic interface between the energizer ring and the seal.Type: GrantFiled: February 25, 2002Date of Patent: August 19, 2003Assignee: Polymer Sealing Solutions, Inc.Inventors: Jeff Baehl, Larry Castleman
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Patent number: 6513811Abstract: The air damper includes a piston reciprocating within a cylindrical housing. The piston includes a lip seal which is made of rubber or thermoplastic elastomer impregnated with a minimum of 3% molybdenum/seal part weight, or a minimum of 2% polytetrafluoroethylene or silicone/seal part weight or a minimum of 1% wax/seal part weight. The lip seal is coated with a minimum of 0.5%/seal part weight graphite powder/molybdenum disulfide. The housing is made with a minimum of 2% silicone impregnated thermoplastic or a minimum of 2% moly sulfide impregnated thermoplastic. This provides for increased smoothness of operation of the air damper, particularly at low speeds.Type: GrantFiled: July 25, 2000Date of Patent: February 4, 2003Assignee: Illinois Tool Works Inc.Inventor: Steven L. Bivens
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Patent number: 6502825Abstract: A seal assembly includes a cloth seal for sealing a cavity between a first mating body and a second mating body, the seal dividing the cavity into a high pressure region and a low pressure region. The cloth seal has a shim assemblage and a cloth assemblage. A first peripheral portion of the cloth seal may include a portion of the cloth assemblage and/or the shim assemblage which contacts the high pressure region and a second peripheral portion including a portion of the cloth assemblage adapted to contact the low pressure region. Knowing the flow conditions and pressure differential through the seal, the density of the cloth seal may be calibrated to control leakage and the shim and cloth assemblages may be designed to minimize contact loads on a mating body.Type: GrantFiled: December 26, 2000Date of Patent: January 7, 2003Assignee: General Electric CompanyInventors: Mahmut Faruk Aksit, Jeffrey Arthur Benoit, Abdul-Azeez Mohammed-Fakir
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Patent number: 6164660Abstract: A rebuildable radial lip seal having a replaceable sealing element for sealing around a movable shaft and adapted for removable placement within a seal housing. The rebuildable radial seal comprises an annular sealing body which extends radially between an annular inner seal surface and an annular outer seal surface. The inner seal surface defines a first inner diameter and includes a circumferential rib which protrudes radially inward from the inner surface. An annular end flange is coaxially engageable with the seal body. The end flange includes a coaxially protruding annular rim which is engageable within the first inner diameter of the seal body to form a circumferential inner slot between the circumferential rib and the inner surface of the seal body and the annular rim on the end flange. An annular sealing element having an inner sealing lip is sealably captured within the inner circumferential slot formed between the seal body and the end flange.Type: GrantFiled: April 13, 1999Date of Patent: December 26, 2000Assignee: Saint-Gobain Performance Plastics CorporationInventor: James R. Goodman
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Patent number: 6120036Abstract: A hydrodynamically lubricated interference type rotary shaft seal suitable for environmental exclusion and high pressure lubricant retention which incorporates composite multiple modulus construction and a non-planar flexible environmental edge heel geometry which cooperate to resist high pressure extrusion damage while minimizing interfacial contact pressure and accommodating radial shaft motion.Type: GrantFiled: January 27, 1998Date of Patent: September 19, 2000Assignee: KALSI Engineering, Inc.Inventors: Manmohan S. Kalsi, Lannie Dietle
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Patent number: 5791657Abstract: A wellhead seal assembly for sealing between first and second pipe members comprises an annular elastomeric body having, in cross-section, a generally rectangular shape comprising a first flat radial surface, a second flat radial surface, an inner circumferential surface and an outer circumferential surface; said inner circumferential surface comprises a generally convex portion that extends from an imaginary plane connecting the inner circumferential edge of each of said first radial surface and said second radial surface; said seal assembly further comprises at least one annular, non-metallic spring member in said elastomeric body positioned generally tangentially to the intersection of either of said radial surfaces with said inner circumferential surface.Type: GrantFiled: January 7, 1997Date of Patent: August 11, 1998Assignee: FMC CorporationInventors: David E. Cain, Andrew C. Posluszny, Rudolf R. Schoen, Jerald L. Smith, Robert K. Stoddard, John C. Vicic, Christopher E. Cunningham, Steven M. French, Jim Tait
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Patent number: 5738358Abstract: A hydrodynamically lubricated interference type rotary shaft seal suitable for environmental exclusion and high pressure lubricant retention which incorporates composite multiple modulus construction and a non-planar flexible environmental edge heel geometry which cooperate to resist high pressure extrusion damage while minimizing interfacial contact pressure and accommodating radial shaft motion.Type: GrantFiled: January 2, 1996Date of Patent: April 14, 1998Assignee: Kalsi Engineering, Inc.Inventors: Manmohan S. Kalsi, Lannie Dietle