Patents Examined by Nicholas L Foster
  • Oil scraper ring spring for an oil scraper ring and oil scraper ring
    Patent number: 11143301
    Abstract: The present invention relates to an oil scraper ring spring (1) for an oil scraper ring (3) comprising the oil scraper ring spring (1), an upper and a lower metal ring (21, 22) and provided for being mounted in an oil ring groove of a piston. The oil scraper ring spring (1) comprises a plurality of upper regions (5) and a plurality of lower regions (7) arranged in alternating manner in a circumferential direction so as to be spaced in an axial direction; connecting regions (9) each connecting the adjacent upper and lower regions (5, 7) to each other.
    Type: Grant
    Filed: April 24, 2018
    Date of Patent: October 12, 2021
    Assignee: SCHERDEL INNOTEC FORSCHUNGS-UND ENTWICKLUNGS-GMBH
    Inventors: Peter Mielke, Manuel Heindl, Maik Zimmermann
  • Disconnect bearing and input seal for a variable frequency starter generator
    Patent number: 11143309
    Abstract: A sealing assembly of an input shaft includes a support structure, a bearing assembly, and an input seal. The input seal including an input seal housing having a first portion and a second portion. The first portion is arranged adjacent the bearing assembly. At least one face plate anti-rotation pin is coupled to the input seal housing and positioned adjacent the input shaft. A face plate is positioned adjacent the second portion. The face plate is configured to directly contact the input shaft.
    Type: Grant
    Filed: October 9, 2018
    Date of Patent: October 12, 2021
    Assignee: HAMILTON SUNDSTRAND CORPORATION
    Inventors: Glenn C. Lemmers, Jr., David S. Behling, Erika M. Danckers
  • Non-metallic engine case inlet compression seal for a gas turbine engine
    Patent number: 11143303
    Abstract: A non-metallic engine case inlet compression seal for a gas turbine engine includes a non-metallic longitudinal leg section that extends from the non-metallic arcuate interface section and a non-metallic mount flange section that extends from the longitudinal leg section.
    Type: Grant
    Filed: August 22, 2018
    Date of Patent: October 12, 2021
    Assignee: Raytheon Technologies Corporation
    Inventor: Anthony R. Bifulco
  • Labyrinth seal with variable tooth heights
    Patent number: 11143048
    Abstract: A labyrinth seal for a gas turbine engine is provided. The labyrinth seal includes a stator and a rotor spaced apart from the stator. The rotor includes a first tooth at a first side having a first radial height, and a second tooth between the first tooth and a second side. The second tooth has a second radial height that is less than the first radial height. The rotor includes a third tooth between the first tooth and the second side having a third radial height that is substantially the same as the first radial height. A first clearance between a first tip of the first tooth and the stator is different than a second clearance between a second tip of the second tooth and the stator, and a third clearance between a third tip of the third tooth and the stator is substantially the same as the first clearance.
    Type: Grant
    Filed: January 23, 2020
    Date of Patent: October 12, 2021
    Assignee: HONEYWELL INTERNATIONAL INC.
    Inventors: Alexander MirzaMoghadam, Hasham Hamzamiyan Chougule, Abhay Naik
  • Sealing ring and seal arrangement comprising such a sealing ring
    Patent number: 11131387
    Abstract: A sealing ring includes: a supporting element; and a lip seal having at least one first and one second lip seal section having sealing materials differing from one another. The first lip seal section at one end is connected to the supporting element, and at an other end has a free end on which the second lip seal section is arranged. The second lip seal section includes an elastomeric sealing material.
    Type: Grant
    Filed: November 19, 2018
    Date of Patent: September 28, 2021
    Assignee: CARL FREUDENBERG KG
    Inventors: Martin Heldmann, Jens Hofmann, Guenter Hintenlang
  • Press-in retainer ring
    Patent number: 11131385
    Abstract: A continuous length of formed metal retaining material can be cut to the partial or full circumference or perimeter of at least one assembly component and disposed in a groove of at least one assembly component to form a retaining ring engaging at least one other assembly component. The retaining ring prohibits lateral and rotational movement.
    Type: Grant
    Filed: October 18, 2018
    Date of Patent: September 28, 2021
    Assignee: Atlas Seals, Inc.
    Inventors: Thomas Paul Zitting, Daniel K. Zitting
  • Sealing plug assembly
    Patent number: 11125332
    Abstract: The disclosure provides a sealing plug assembly including a plug body, a guide ring, a first sealing ring and an elastic component. The plug body has an annular outer surface having a plug side and an exposed side opposite each other and a first annular recess located at the annular outer surface and located between the plug side and the exposed side. The guide ring is sleeved on the plug body and located in the first annular recess. The guide ring has a first inclined surface. The first sealing ring is sleeved on the plug body and located in the first annular recess. The first sealing ring is located farther away from the exposed side of the annular outer surface than the guide ring. The first sealing ring has a second inclined surface matching the first inclined surface. The elastic component is sleeved on the first sealing ring.
    Type: Grant
    Filed: April 24, 2019
    Date of Patent: September 21, 2021
    Assignee: TECHNOLOGY ON PROTOTYPING ULTIMATE CO., LTD.
    Inventors: Hui Wen Hu, Ting Yu Chen
  • Multi-layered PTFE radial lip seal
    Patent number: 11118685
    Abstract: A multi-layered lip seal comprising a dynamic layer optionally having a filler incorporated therein and a static layer optionally having a filler incorporated therein is described. The lip seal has an annular ring shape, wherein an inner diameter of the ring shape is curved in an axial direction so as to give the lip seal a J-shape when viewed from a cross-sectional perspective. Fillers that can be included in static layer include stiffening filler, reinforcement fillers, conductive fillers and/or abrasion resistance fillers. Fillers that can be included in the dynamic layer include wear resistance fillers. The use of specific fillers in specific layers of the multi-layered lip seal allows for certain segments of the lip seal to be imparted with the benefits of the filler without negatively impacting other segments of the lip seal.
    Type: Grant
    Filed: June 12, 2018
    Date of Patent: September 14, 2021
    Assignee: Garlock Sealing Technologies, LLC
    Inventors: T. Scott Tanner, Michael P. McNally, Joseph D. Young, Stefan Pitolaj
  • Process diaphragm seal
    Patent number: 11118989
    Abstract: A process diaphragm seal includes a seal body, a diaphragm, and a ring member. The seal body includes a flange that surrounds a cavity. The diaphragm includes an active portion that extends over the cavity and a peripheral portion that surrounds the active portion. The ring member clamps the peripheral portion of the diaphragm to an outer wall of the flange through an interference fit between an inner wall of the ring member and the outer wall of the flange. A seal is formed between the peripheral portion of the diaphragm and the outer wall of the flange.
    Type: Grant
    Filed: July 13, 2018
    Date of Patent: September 14, 2021
    Assignee: ROSEMOUNT INC.
    Inventor: Baogang Li
  • Subsea slip-on pipeline repair connector with graphite packing
    Patent number: 11105178
    Abstract: A tubular connection system comprises a slip sized to fit about an outer diameter of a tubular, one or more pipeline connectors sized to fit within a tubular housing and comprising a graphite packer and a set of slip limiting rings disposed on either the first side or the second side of the graphite packer against the graphite packer's first C-shaped ring or the second C-shaped ring, and a connector activator operatively in communication with the tubular housing and operative to compress or decompress the first graphite packer.
    Type: Grant
    Filed: December 19, 2019
    Date of Patent: August 31, 2021
    Assignee: Oceaneering International, Inc.
    Inventors: Matthew Charles, Chen Cheng, Prashant Kamdar
  • Sealing unit for fork tubes of bicycles or motorcycles
    Patent number: 11105422
    Abstract: A sealing unit for a fork tube provided with a lining and a stem disposed slidably inside the lining through an inlet opening. The sealing unit being mounted in the inlet opening to be slidably engaged by the stem and provided with an annular stiffening insert and a flexible annular body provided with two dust-cover lips arranged in sliding contact with the stem, and with a cylindrical static sealing element forcibly and elastically locked inside the inlet opening. The cylindrical static sealing element being radially delimited outwardly by a cylindrical assembly surface having a respective axis (X) of symmetry, which is eccentric with respect to the axis (Y) of symmetry of the first dust-cover lip to ensure a uniform sliding contact of at least the first dust-cover lip on the stem.
    Type: Grant
    Filed: June 12, 2019
    Date of Patent: August 31, 2021
    Inventors: Marco Bresso, Davide Brossa, Claudio Musso
  • Multiple-piece oil stripping piston ring with reduced friction
    Patent number: 11092238
    Abstract: A three-piece piston oil control ring 2 has an upper, disc-shaped scraping ring 4, a lower, disc-shaped stabilising ring 6, and a circular expander 8 which has projections 10 protruding in the axial direction on an inner face. The circular expander 8 is arranged between the upper scraping ring 4 and the lower stabilising ring 6, wherein the projections 10 each bear inwardly against an inner face 14 of the scraping ring 4 or against an inner face 16 of the stabilising ring 6. An outer radius 18 of the scraping ring 4 is greater than an outer radius 20 of the lower stabilising ring 6, so that there is a radius difference ? between the scraping ring 4 and the stabilising ring 6.
    Type: Grant
    Filed: November 28, 2016
    Date of Patent: August 17, 2021
    Assignee: Federal-Mogul Burscheid GmbH
    Inventors: Stephan Machliner, Fabian Ruch
  • Labyrinth seal
    Patent number: 11085541
    Abstract: A labyrinth seal includes a step portion, a high-puressure-side fin, a low-puressure-side fin and an annular groove. The step portion is formed in a portion of a second member on one side of the facing direction and faces a high-pressure side. The high-pressure-side fin is arranged on a high-pressure side relative to the step portion. The low-pressure-side fin is arranged on a low-pressure side relative to the step portion. The annular groove is formed in a portion of the second member on the one side of the facing direction and is arranged in at least a part of a region on the low-pressure side relative to the step portion as well as on the high-pressure side relative to the low-pressure-side fin.
    Type: Grant
    Filed: September 29, 2017
    Date of Patent: August 10, 2021
    Assignee: KOBE STEEL, LTD.
    Inventor: Shunsuke Morinaka
  • Circumferential air riding carbon seal on ceramic runner
    Patent number: 11085540
    Abstract: Systems and methods are disclosed for sealing a high pressure fluid cavity from a low pressure fluid cavity in a rotating machine such as a gas turbine engine. The cavities are at least partially disposed between a rotatable shaft and a sump housing radially displaced from the rotatable shaft. A seal assembly comprises an air riding carbon seal ring and a circumferential ceramic runner. The carbon seal ring is sealingly engaged with the sump housing and has a radially inward facing seal surface. The circumferential ceramic runner is carried by the shaft and has a radially outward facing seal surface extending axially along the shaft. The radially inward facing seal surface of the air riding carbon seal ring sealingly engages the radially outward facing seal surface of the ceramic runner during rotation of the rotatable shaft at a predetermined range of rotational speeds.
    Type: Grant
    Filed: November 30, 2018
    Date of Patent: August 10, 2021
    Assignee: Rolls-Royce Corporation
    Inventors: Daniel Lawrence Fadgen, Jared Isamu Taketa, Joseph A. Swift, Daniel Feinstein
  • Seal for a vacuum material lifter
    Patent number: 11078051
    Abstract: A seal for a vacuum lifter and method of manufacture wherein the seal has a continuous unbroken outer fluid resistant skin of elastomer which forms a boundary around a homogeneous cellular structure with no interior seams or joints.
    Type: Grant
    Filed: August 12, 2019
    Date of Patent: August 3, 2021
    Assignee: Vacuworx Global, LLC
    Inventors: Robert Denton, James Ray Podesta, William J. Solomon
  • Packing cartridge and method of installation
    Patent number: 11073212
    Abstract: A split packing cartridge includes a sealing construct and a stabilizing bushing, and is installed in an apparatus directly upon a longitudinally extending shaft of the apparatus, along a site located intermediate opposite ends of the shaft, by assembling component parts of the packing cartridge upon the shaft, and placing of the assembly at the site, without the necessity for dismantling the apparatus.
    Type: Grant
    Filed: December 3, 2020
    Date of Patent: July 27, 2021
    Inventor: John A. Kozel
  • Gasket-mounting structure
    Patent number: 11067175
    Abstract: A structure allowing a gasket to be mounted on a fluid device is provided. The gasket includes a ring with a first annular slope at a first axial end. The fluid device includes an inner sleeve with a second annular slope and an outer sleeve radially outside the inner sleeve. An outer periphery of the ring includes an annular contact face that contacts the outer sleeve and an annular non-contact face radially separated from the outer sleeve. The first annular slope contacts an outer periphery of the second slope.
    Type: Grant
    Filed: May 29, 2019
    Date of Patent: July 20, 2021
    Assignee: NIPPON PILLAR PACKING CO., LTD.
    Inventors: Tomohiro Adachi, Atsushi Nakano, Tomoyuki Koike, Kazukiyo Teshima, Motoaki Naruo
  • Sealant material
    Patent number: 11066587
    Abstract: Use of a sealing material which is a multifilament or spun yarn coated with a joint sealing composition to seal a joint in a pipe system in which system a fluid having corrosion inhibitors such as diammonium dimolybdate or benzotriazole; and/or sludge removers; and/or an alcohol such as propane diol, or ethylene glycol; and/or a hydrocarbon such as diesel, including biodiesel, fuel oil, or hydraulic oil; and/or steam at a temperature of at least 180° C. and a pressure of at least 10 bar (1000 kPa); is to be passed through the sealed joint. It is surprising that the sealing materials of the invention can maintain a sealed joint despite exposure to such materials.
    Type: Grant
    Filed: July 7, 2017
    Date of Patent: July 20, 2021
    Assignee: Henkel IP & Holding GmbH
    Inventors: Anna Prell, Eadaoin Ledwidge
  • Fluid-cooled seal arrangement for a gas turbine engine
    Patent number: 11066955
    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: September 11, 2018
    Date of Patent: July 20, 2021
    Assignee: Raytheon Technologies Corporation
    Inventors: Garth J. Vdoviak, Jr., Gary L. Grogg
  • Sealing member for gasket, and gasket comprising same
    Patent number: 11060612
    Abstract: A gasket is disposed between pipe flanges to prevent leakage.
    Type: Grant
    Filed: May 4, 2018
    Date of Patent: July 13, 2021
    Assignee: KUK IL INNTOT CO., LTD.
    Inventor: Jong Chul Lee