Patents Examined by L. Susmitha Koneru
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Patent number: 9638329Abstract: In an engine rear seal installed to an engine rear portion having an end plate arranged in a motor exterior side of a housing, and a flywheel arranged in a motor exterior side of the end plate, the engine rear seal has an oil seal and a muddy water preventing seal. The muddy water preventing seal integrally has an attaching portion, and a seal lip directed to a diametrically outer side from the attaching portion and slidably coming into close contact with an end surface in the motor exterior side of the end plate. The seal lip has an inclined lip end back surface portion, and is structured such that a lip end comes into contact with the end surface at the low-speed rotating time and the lip end moves away from the end plate on the basis of an action of a centrifugal force at the high-speed rotating time.Type: GrantFiled: August 27, 2012Date of Patent: May 2, 2017Assignee: NOK CorporationInventors: Kenichi Yarimizu, Tomoaki Nishimura
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Patent number: 9587743Abstract: A labyrinth seal including a stator and a non-contacting rotor, and annular elastomeric seals. The confronting surfaces of the stator and rotor define at least one interface passage, including a radially-outermost annular interface passage between an annular, outermost, radially-extending projection of the stator and an annular rearwardly-extending distal projection of the rotor that overlaps the radially-extending projection of the stator, the radially-outermost annular interface passage tapering outwardly and rearwardly at an acute angle relative to an axial reference line. The annular elastomeric seals are stationary with the stator during dynamic operation of the rotor, and are not contacted by a surface of the rotor during dynamic operation. The interface can also have two radially-disposed exclusion chambers, the outer exclusion chamber being defined in part by a radially-inboard projection of the rotor.Type: GrantFiled: August 8, 2014Date of Patent: March 7, 2017Assignee: ORION ENGINEERED SEALS, LLCInventors: Randall Jaskot, Woodrow Nepa, Todd Brickson
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Patent number: 9581243Abstract: A system seals a filter or equipment component to abase and will continue to seal the filter or equipment component to the base in the event of hot air or fire. The system includes a first sealing material between the filter or equipment component and the base; and a second sealing material between the filter or equipment component and the base and proximate the first sealing material. The first sealing material and the second seal material are positioned relative to each other and relative to the filter or equipment component and the base to seal the filter or equipment component to the base and upon the event of fire the second sealing material will be activated and expand to continue to seal the filter or equipment component to the base in the event of hot air or fire.Type: GrantFiled: August 26, 2014Date of Patent: February 28, 2017Assignee: Lawrence Livermore National Security, LLCInventor: Erik P. Brown
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Patent number: 9581248Abstract: To provide a mechanical seal in which degradation or tearing of a bellows does not occur, the spring constant of the bellows is reduced, and the fluctuation in the load due to stretching and contracting of the bellows is reduced. An inside-type mechanical seal includes a sleeve fixed to a rotating shaft, and a cartridge fixed to a housing. A rotation-side sealing ring is provided to the sleeve. A fixed-side sealing ring, which slides against the rotation-side sealing ring, and a bellows for axially urging the fixed-side sealing ring is provided to the cartridge. The bellows is made from a metal; and the metal bellows has one end fixed to a case for holding the fixed-side sealing ring and another end fixed to the cartridge. The plate thickness of the metal bellows is set so as to be smaller than the plate thickness of the case or the cartridge.Type: GrantFiled: May 19, 2016Date of Patent: February 28, 2017Assignee: EAGLE INDUSTRY CO., LTD.Inventors: Masatoshi Itadani, Takashi Shinomiya, Yoshihiro Ogawa
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Patent number: 9511486Abstract: A seal installation guide sleeve for installing a radial lip seal onto a shaft. The radial lip seal includes a flexible sealing lip. The guide sleeve includes a cylindrical lip engaging surface, and includes an annular flange portion extending from the cylindrical lip engaging surface. The guide sleeve also includes a plurality of tabs extending from the annular flange portion. The guide sleeve is pre-installed in the radial lip seal such that the flexible sealing lip engages the cylindrical lip engaging surface, thereby protecting the flexible sealing lip from damage as the radial lip seal is installed onto the shaft.Type: GrantFiled: March 19, 2014Date of Patent: December 6, 2016Assignee: DEERE & COMPANYInventors: Eric T. Lammers, Allan N. Schott, Blake A. Metz
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Patent number: 9506567Abstract: A thickness dimension of a peripheral edge of a seal element held by an inner brim wall portion of an outer case and an inner brim wall portion of an inner case is set to be larger than a thickness dimension of a remaining portion of the seal element, and a ring concave groove is formed on the peripheral edge of the seal element.Type: GrantFiled: February 19, 2015Date of Patent: November 29, 2016Assignee: MITSUBISHI CABLE INDUSTRIES, LTD.Inventor: Nobukazu Fujii
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Patent number: 9482179Abstract: A multi-layer cylinder head gasket is provided. The cylinder head gasket includes a plurality of layers of material, each of the layers has a plurality of openings including at least one cylinder bore opening and at least one pushrod opening. Each of the layers has an edge which surrounds the at least one pushrod opening, and the pushrod openings of the layers are aligned axially with one another. An eyelet extends axially in each of the pushrod openings and covers the edges of the layers for protecting a pushrod extending through the respective pushrod opening. The eyelet is made of a material that is softer than the material of the plurality of layers.Type: GrantFiled: July 15, 2014Date of Patent: November 1, 2016Assignee: Federal-Mogul CorporationInventors: Nicholas Nelson, Wilford Dean Virgin, Steven Kueltzo, Richard Larson, John Stark
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Patent number: 9470314Abstract: A rubber gasket for a fuel cell is interposed between a first member and a second member stacked in the fuel cell. The fuel cell includes: a seat portion arranged on a surface of the first member; and a lip portion that includes a first hill portion projecting from the seat portion toward the second member and having a curved surface with a first curvature radius and a second hill portion projecting from the first hill portion toward the second member and having a curved surface with a second curvature radius smaller than the first curvature radius, and that makes elastic contact with the second member. The seat portion includes a planar inclined surface inclined with respect to the surface direction at a connecting portion leading to a bottom of the first hill portion.Type: GrantFiled: April 6, 2015Date of Patent: October 18, 2016Assignees: SUMITOMO RIKO COMPANY LIMITED, TOYOTA JIDOSHA KABUSHIKI KAISHAInventors: Hideya Kadono, Hiroki Itakura, Kenji Sato, Takuya Kurihara, Hideaki Tanahashi
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Patent number: 9458937Abstract: A shaft seal assembly including an elastomeric material molded to an annular metal shell is provided. The elastomeric material includes a lip extending from the annular shell to a lip distal end. The lip includes a first lip section projecting toward a center axis, and a second lip section projecting from the first lip section away from the center axis. A dust band is disposed between the first and second lip sections. The elastomeric material also includes flutes disposed on the second lip section and extending helically around the center axis and radially toward the center axis. The dust band can include vents, in which case one of the flutes extends from one side of each vent. The height of the flutes can increase from the dust band to the flute distal end, such that the flutes and the dust band have an equal interior diameter for engaging the shaft.Type: GrantFiled: August 14, 2014Date of Patent: October 4, 2016Assignee: Federal-Mogul CorporationInventors: David M. Toth, Brent Sedlar
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Patent number: 9447883Abstract: A seal for sealing around a shaft includes a radially outer clamp-in element to be clamped into a housing, an intermediate membrane part extending radially inwardly (toward the shaft) at an angle from the clamp-in element, and an angled base part at a radially inner end of the intermediate membrane part. A spring is received in a receiving groove that forms a spring pocket in the base part, and the spring exerts a contact pressure of a seal lip of the base part against the shaft. In a pressureless state without a pressure differential across the seal, the spring pocket has a width larger than the sectional diameter of the spring and thus forms a free play space for the spring in the pocket.Type: GrantFiled: February 29, 2012Date of Patent: September 20, 2016Assignee: Blohm + Voss Industries GmbHInventors: Ernst Peter Von Bergen, Lars Ziemen, Carlos Fangauf, Dieter Von Borstel, Guido Wuestenhagen, Ivan Ristic
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Patent number: 9415853Abstract: A method and apparatus comprising a sealing member, an integral structure associated with the sealing member, and an engagement section extending from the sealing member. The sealing member is configured to be attached to a surface of an object. The sealing member is consolidated with the integral structure. The engagement section is deformable and configured to engage a receiving structure in the object.Type: GrantFiled: January 30, 2013Date of Patent: August 16, 2016Assignee: THE BOEING COMPANYInventors: Michael P. Gleason, Daniel Eugene Pulcher, Anthony C. Roberts, William John Keyes, Michael Allan Arrowsmith, Elizabeth Kay Kauffman, Amoret Margaret Lambrecht, Alan F. Tegeler, Robert A. Gipperich, Mathew Albert Coffman
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Patent number: 9410555Abstract: A sealing assembly includes a seal support having a support ring made from an elastomeric material, at least one seal element having a ring made from a polymer material, and an abutment ring against which a radial portion of the seal element axially abuts. The seal element is connected in a materially-bonded manner to the support ring along a first radially outer portion of the seal element, and the seal element axially abuts on the abutment ring along a second radially inner portion of the seal element. The seal element and the abutment ring are free of any connection along the second radially inner portion of the seal element.Type: GrantFiled: August 4, 2014Date of Patent: August 9, 2016Assignee: AKTIEBOLAGET SKFInventors: Helmut Benedix, Juergen Kurth, Willy Seewald, Roland Worsley
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Patent number: 9410627Abstract: A seal arrangement for sealing a propeller shaft where it penetrates through the hull of a watercraft includes a shaft bushing around this portion of the shaft, one or more seal rings forming a seal around the shaft bushing, and a stationary support holding the seal ring or rings. The shaft bushing includes an outer bushing part made of a wear-resistant material, arranged coaxially around an inner bushing part made of a material having a high thermal conductivity. The thickness of the outer part relative to the thickness of the inner part is a ratio in a range from 1:10 to 1:3. The two-part shaft bushing can provide optimized thermal conductivity and heat dissipation away from the seal rings to the cool exterior water environment, as well as optimized wear-resistance, corrosion resistance and reduced friction for the seal rings.Type: GrantFiled: April 23, 2013Date of Patent: August 9, 2016Assignee: Blohm + Voss Industries GmbHInventors: Carlos Fangauf, Lars Ziemen
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Patent number: 9404583Abstract: A slide ring seal, and in particular a running gear seal, including an angled slide and/or counter ring, the radial leg of which is provided with a sliding surface and the axial leg of which forms a seating for a trapezoidal sealing element, wherein the outer ends of the axial leg have recesses, into which engage projections on the sealing element to form anti-rotation locks, wherein the transition area from the axial leg to the radial leg of the slide and/or counter ring provided beyond the sliding surface has a profiling, into which a section of the sealing element having an approximately corresponding construction engages.Type: GrantFiled: February 29, 2012Date of Patent: August 2, 2016Assignee: Federal-Mogul Burscheid GmbHInventor: Andreas Dengler
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Patent number: 9383016Abstract: The present disclosure relates to a sealing element for hollow sections, including a seal carrier that extends along a longitudinal axis and has two arms each of which has an outer face and an inner face and which are connected together, as one piece, at longitudinal edges that face each other such that they form a corner angle between them seals mounted on or near a free longitudinal edge of each arm and running parallel to the free longitudinal edge, on the outer face of the associated arm, and a securing device, on at least one inner face of an arm, for detachably securing the sealing element onto a corner of a hollow section. A cover cap serves to complete the sealing elements, the cap being provided, on its outer face, with one or more sealing sections designed to connect to ends of the seals of the sealing element.Type: GrantFiled: February 22, 2012Date of Patent: July 5, 2016Assignee: C E S CONTROL ENCLOSURE SYSTEMS GMBHInventors: Igor Harry Schaaf, Paul Mazura, Walter Nicolai, Simon Jocham
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Patent number: 9371911Abstract: In a reciprocating sealing device sealing two members by mounting a packing to a mounting groove in one of two relatively reciprocating members, and bringing the packing into contact with the other member, the packing is provided with an annular base part, a stationary side lip, and a sliding side lip. A back ring having a lower hardness than the packing is interposed between the annular base part and a groove side surface of the mounting groove. The back ring forms a space region in relation to the other member. The annular base part is provided with a shape that the annular base part does not protrude out of an extension of a peripheral surface of the sliding side lip in a free state by forming a cross sectional shape of a heel part into a circular arc shape or a taper shape.Type: GrantFiled: October 15, 2013Date of Patent: June 21, 2016Assignee: NOK CorporationInventors: Kazunori Jinbo, Hiroki Okada, Toru Araki
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Patent number: 9360118Abstract: A magnetic fluid seal is provided, capable of producing a stable scaling performance by stably holding magnetic fluid in place between two members, even in cases when the two members become eccentric. The magnetic fluid seal includes: an annular magnetic circuit forming member that is disposed on a housing; an annular member that is disposed on a shaft; and a magnetic fluid that is magnetically held between axially opposing surfaces of the magnetic circuit forming member and the annular member. In addition, the annular member comprises a flexible member that is swayable so that a portion of the annular member that opposes the magnetic circuit forming member follows the magnetic circuit forming member.Type: GrantFiled: January 16, 2012Date of Patent: June 7, 2016Assignee: Eagle Industry Co., Ltd.Inventor: Takuto Fukuhara
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Patent number: 9359958Abstract: A seal mechanism is provided which comprises a structure capable of accommodating radial expansions of turbine rotor without increasing an axial size thereof and providing a reliable sealing property for the turbine rotor for a long time. The seal mechanism comprises a labyrinth seal 91, 93 defined by a projection 87 provided on the turbine rotor 11B, an outer member 67 provided radially outward of the projection and supported for displacement in a radial direction, and an inner member 69 provided radially inward of the projection and supported for displacement in the radial direction. A thermal expansion rate of the inner member is greater than that of the outer member.Type: GrantFiled: March 16, 2011Date of Patent: June 7, 2016Assignee: KAWASAKI JUKOGYO KABUSHIKI KAISHAInventors: Yoshihiko Mutou, Ryozo Tanaka
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Patent number: 9347343Abstract: Described herein is a gasket for a valve of an internal-combustion engine; the valve comprises at guide element defining a through seat, find a stein slidably mobile in said seat; the gasket comprises an annular sealing element, which is elastically deformable and is designed to be set externally on the valve to co-operate both with the guide element and with the stem, and an annular supporting member, which is set coaxially on at least part of the sealing element in such a way that the latter is radially pressed between the supporting member and the valve; the supporting member comprises a first portion for interaction with the sealing element and a second portion for positioning in use the gasket on the engine; the first and second portions of the supporting member form part of a first component and a second component respectively, that are distinct from one another and are mounted coaxially by snap-action coupling means.Type: GrantFiled: June 12, 2014Date of Patent: May 24, 2016Assignee: FREUDENBERG SEALING TECHNOLOGIES S.A.S. DI EXTERNA ITALIA S.R.L.U.Inventors: Claudio Zoppi, Andrea Giordano, Paolo Fervier, Daniele Bordabossana
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Patent number: 9343891Abstract: The present invention relates to a gel sealing device for sealing a passage of elongate parts through an opening. Such gel sealing device is preferably arranged in a housing used in telecommunication technology. The present invention solves the problem of providing a gel sealing device having improved cable access properties. The inventive gel sealing device comprises a gel sealing block (5) which provides a sealing section (22) through which the elongate parts (13, 14) extend, wherein the gel sealing block (5) comprises an upper flange (11) and a lower flange (12) with a support section (11a, 12a, 12b) disposed therebetween. The upper and lower flanges (11, 12) sandwiches in direction of extension of the elongate parts (13, 14), a gel inner ring (7) supported by said support section (2) and a gel outer ring (6, 10a) covering the gel inner ring (7) in a radial direction extending transverse to said extension direction.Type: GrantFiled: November 29, 2010Date of Patent: May 17, 2016Assignee: CommScope Connectivity Belgium BVBAInventors: Robert Vanhentenrijk, Ronnie Rosa Georges Liefsoens, Pieter De Coster