Patents Examined by Gilbert Y Lee
  • Patent number: 11988287
    Abstract: An inflation control apparatus includes seal heads at ends of a container liner on a rack; a rotary inflation connector includes a static component and a rotating component. The rotating component is connected with the seal head; an inflation core tube is in the container liner, air holes are in the inflation core tube, and the two ends of the inflation core tube are connected with the static component of the rotary inflation connector respectively. A temperature and pressure sensor is in the container liner; an air compressor provides air for an air heater, the air heater introduces the heated air into an air inlet of the inflation core tube, an air outlet of the inflation core tube is connected with an air inlet of a flow regulating valve, and an air outlet of flow regulating valve is connected with an air inlet of the air compressor.
    Type: Grant
    Filed: November 3, 2023
    Date of Patent: May 21, 2024
    Inventors: Jianguo Liang, Qingxue Huang, Chunxiang Miao, Yinhui Li, Zhaotun Jia, Kun Yang, Zemin Ning, Jianglin Liu, Zhanchun Chen, Lianyun Jiang, Chunjiang Zhao
  • Patent number: 11988095
    Abstract: A seal assembly for a component of a turbomachine and method of assembly thereof is provided. The seal assembly includes at least one mating face positioned adjacent to the component and a seal coupled to the mating face. The seal includes an outer shell defining an interior space; an inner matrix filling the interior space comprising a plurality of unit cells comprising one or more metamaterials, wherein at least a portion of the plurality of unit cells are identical, and wherein the plurality of unit cells are repeated throughout the inner matrix; and one or more support struts extending throughout the inner matrix. The method of building the seal assembly may include selecting a first material for the outer shell and selecting the one or more metamaterials for the inner matrix based on the first material.
    Type: Grant
    Filed: March 3, 2022
    Date of Patent: May 21, 2024
    Assignee: General Electric Company
    Inventors: Deepak Trivedi, Rahul Anil Bidkar, Uttara Vijay Kumar
  • Patent number: 11982353
    Abstract: In an embodiment a device includes a housing with at least a first housing part, a second housing part and an interior space at least partially surrounded by the first and second housing parts and a sealing element, wherein the first housing part includes a first sealing surface and the second housing part includes a second sealing surface, wherein the sealing element abuts the first sealing surface and the second sealing surface, wherein the sealing element has an inner surface in contact with the interior space and an outer surface in contact with a surrounding atmosphere of the housing, and wherein the sealing element includes a material through which gas is exchangeable between the interior space and the surrounding atmosphere.
    Type: Grant
    Filed: March 24, 2021
    Date of Patent: May 14, 2024
    Assignee: TDK Electronics AG
    Inventors: Bettina Milke, Andreas Breuer
  • Patent number: 11982355
    Abstract: A yarn includes elongated pieces of expanded graphite sheet and a tubular member made of knitted or braided fibers. In the tubular member, the pieces of expanded graphite sheet are twisted and packed. The yarns are knitted, or bundles of the yarns are twisted to form a gland packing.
    Type: Grant
    Filed: January 15, 2019
    Date of Patent: May 14, 2024
    Inventors: Masaru Fujiwara, Misato Izuka, Ryoji Hamaguchi, Naoyuki Sawamoto
  • Patent number: 11976732
    Abstract: A piston seal assembly for a gas turbine engine includes a seal composed of a nickel-based superalloy; a component in contact with the seal and defining a seal-counterface; and a coating on the seal at the seal-counterface, wherein the coating is a metal alloy binder phase and a hard particle phase distributed through the binder phase.
    Type: Grant
    Filed: February 21, 2022
    Date of Patent: May 7, 2024
    Assignee: RTX Corporation
    Inventors: Pantcho P. Stoyanov, Kelly M. Harrington
  • Patent number: 11965600
    Abstract: A mechanical sealing arrangement includes a rotary part, a non-rotary part and a signal processing arrangement. The rotary part includes at least a rotary slide ring and a rotary slide ring carrier, the non-rotary part including at least a non-rotary slide ring and a non-rotary slide ring carrier, and the signal processing arrangement includes at least one sensor for monitoring the operation of the mechanical sealing arrangement. A sensor ring is disposed on the non-rotary slide ring carrier, the sensor ring includes the at least one sensor and a device for transmitting measurement data from the at least one sensor for further processing.
    Type: Grant
    Filed: December 11, 2019
    Date of Patent: April 23, 2024
    Inventor: Atte Posa
  • Patent number: 11946548
    Abstract: An apparatus has: a first member; a shaft rotatable relative to the first member about an axis; and a seal system. The seal system has: a seal carried by the first member and having a seal face; a seal housing; a seat carried by the shaft and having a seat face in sliding sealing engagement with the seal face; and a plurality of coil springs biasing the seal face against the seat face, each coil spring having a first end and a second end. The seal has a plurality of spring compartments. Each of the plurality of coil springs is partially within a respective associated compartment of the plurality of spring compartments.
    Type: Grant
    Filed: May 17, 2022
    Date of Patent: April 2, 2024
    Assignee: RTX Corporation
    Inventors: Masayoshi Sonokawa, Jonathan F. Zimmitti, Nasr A. Shuaib, Sean P. McCutchan
  • Patent number: 11933407
    Abstract: To provide a long-life compression ring without an increase in the outer peripheral abrasion near the gap regardless of the ring material or the presence or absence of the outer peripheral hard coating, in an annular compression ring having a pair of gap faces opposed to each other to form a free gap and a nominal diameter d1 equal to an inner diameter of a cylinder to which the compression ring is attached to along with a piston, a self tangential force is 5N to 50N, and a radius of curvature R1 and the nominal diameter d1 satisfy a relationship: ?0.01?(2R1?d1)/d1<0.002 where the radius of curvature R1 is that of outer peripheral arcs of gap end portions in a free shape state before the compression ring is attached to the cylinder, and the gap end portions are defined in ranges between the gap faces and positions where a center angle from a midpoint of the free gap is 35°.
    Type: Grant
    Filed: December 3, 2020
    Date of Patent: March 19, 2024
    Inventors: Hiroaki Saito, Yoshio Okada
  • Patent number: 11920477
    Abstract: A seal includes a ceramic matrix composite ply having woven ceramic-based fibers in a ceramic-based matrix. The ceramic matrix composite ply has at least one bend formed about a bend axis and defines at least one rounded portion. A sealed assembly and a method of making a seal are also disclosed.
    Type: Grant
    Filed: December 5, 2022
    Date of Patent: March 5, 2024
    Assignee: RTX Corporation
    Inventor: Olivier H. Sudre
  • Patent number: 11913495
    Abstract: A bearing and/or seal assembly where pressurized gas (e.g., air) may be arranged to produce a contact-free bearing and/or seal is provided. The assembly includes a permeable body (12) including structural features (13) selectively engineered to convey a pressurized gas (Ps) from an inlet side (20) side of the permeable body to an outlet side (22) of the permeable body to form an annular film of the pressurized gas relative to the rotatable shaft. Disclosed embodiments may be produced by way of three-dimensional (3D) Printing/Additive Manufacturing (AM) technologies with practically no manufacturing variability; and may also cost-effectively and reliably benefit from the relatively complex geometries and the features and/or conduits that may be involved to, for example, form the desired distribution pattern or impart a desired directionality to the pressurized gas conveyed through the permeable body of the bearing and/or seal assembly.
    Type: Grant
    Filed: November 20, 2018
    Date of Patent: February 27, 2024
    Assignee: Siemens Energy, Inc.
    Inventors: Byron L. Mohr, Tristen Barnes, Mark J. Kuzdzal, Christopher Guerra, Harry Francis Miller
  • Patent number: 11913551
    Abstract: Housing seals and methods seal off a housing interior from a housing exterior. The housing seals and methods comprise an elastic adhesive strip that is arranged between a first housing element and a second housing element, wherein the adhesive strip comprises a first end portion having a first edge face, and a second end portion having a second edge face, wherein the adhesive strip and is arranged between the first housing element and the second housing element in such a way that the first and second edge faces lie substantially in a plane, the adhesive strip is arranged between the first housing element and the second housing element in a closed circulation, and the first edge face of the adhesive strip is in contact with the second edge face of the adhesive strip and forms a sealing gap.
    Type: Grant
    Filed: January 13, 2021
    Date of Patent: February 27, 2024
    Assignee: TESA SE
    Inventors: Deniz Nick Akin, Wilhelm Watzke, Li Wang, Kim Elsenbach
  • Patent number: 11906048
    Abstract: A sufficient sealing property of a through hole is ensured. A sealing structure includes a cylindrically-shaped body part inserted into the through hole, formed of a thin plate of a first thickness, one end of the body part being open and another end of the body part being closed, a tapered part connected to the opened one end of the body part and including a diameter gradually expanding outward as a distance from the body part increases, and a first bent part connected to the tapered part, formed of a thin plate thinner than the first thickness, and bent inward so that a protruding part protruding outward elastically abuts against an inner peripheral surface of the through hole.
    Type: Grant
    Filed: April 14, 2022
    Date of Patent: February 20, 2024
    Inventors: Tomohiro Takenaga, Keisuke Uchida, Tatsuya Okamoto, Satoru Ando, Toshio Narita, Hiroshi Imaizumi, Naoki Yamaguchi
  • Patent number: 11906050
    Abstract: A radial shaft sealing ring is designed to electrically conductively connect a shaft to a component which is stationary relative to the shaft. The radial shaft sealing ring has a supporting body and a sealing element attached thereto having a sealing portion which makes contact with the shaft. The material composition of the sealing element and/or a protective lip comprises at least one base material made from at least one polymer and one or more fillers, with at least one electrically conductive filler being provided.
    Type: Grant
    Filed: May 2, 2022
    Date of Patent: February 20, 2024
    Inventors: Bjoern Lindener, Juergen Grundt, Tobias Saberniak, Manfred Brand
  • Patent number: 11906052
    Abstract: A piston ring with a coated outer surface is provided. The coating is disposed on end sections of the outer surface adjacent a gap. Typically, a middle section of the outer surface located between the end sections is not coated. The coating can be formed of CrN or DLC, and the CrN coating can be applied by physical vapor deposition (PVD). The end sections of the outer surface, upon which the coating is applied, are rough. For example, the outer surface can be blasted or otherwise textured to achieve the rough surface. The rough surface retains oil and distributes stress better than a smooth surface, and thus reduces crazing and flaking of the coating.
    Type: Grant
    Filed: May 25, 2022
    Date of Patent: February 20, 2024
    Assignee: Tenneco Inc.
    Inventors: Robert Reuven Aharonov, Marc Irrgeher
  • Patent number: 11898639
    Abstract: A seal is formed of two identical seal halves (1). Each seal half (1) comprises a front fitting (4), a rear fitting (5), a compressible part placed between the front fitting (4) and the rear fitting (5) and a number of screws (7, 14, 18, 21). Said screws goes through openings in the front fitting (4), the rear fitting (5) and the compressible part. The compressible part comprises a first material (2), a second material (3) and a middle fitting (6) placed between first material (2) and the second material (3). The first material (2), the second material (3) and the middle fitting (6) have through openings for receiving the screws (7, 14, 18, 21).
    Type: Grant
    Filed: November 24, 2020
    Date of Patent: February 13, 2024
    Assignee: Roxtec AB
    Inventor: Andreas Karlsson
  • Patent number: 11898640
    Abstract: The invention relates to a ring seal for sealing a gap between two parts that can be moved axially to one another, with a cross-sectional profile, which is constant in the circumferential direction and has a symmetrical design with respect to a radially oriented axis of symmetry (S), and with a dynamic sealing surface arranged radially outside or radially inside on the cross-sectional profile, and a groove base area arranged radially opposite the sealing surface, wherein that the sealing surface has a first central section (I) which, in the cross-sectional profile, has a radius R of R<B/2 with respect to an axial width B of the ring seal, and the sealing surface further has a second and third section (II, III) which enclose the first central section between them, and that the sealing surface in the region of the second and third sections (II, III) is in each case embodied as a planar annular surface which is oriented at an angle (?) of 60 to 85 degrees with respect to the axis of symmetry of the cross-sect
    Type: Grant
    Filed: August 23, 2022
    Date of Patent: February 13, 2024
    Inventors: Manfred Brand, Henning Schmidt, Sebastian Teuscher
  • Patent number: 11885416
    Abstract: The invention relates to a dynamic shaft seal which comprises (a) elastomer material and (b) graphene without a chemically modified surface in an amount of from 0.1 to 2 phr, in relation to 100 parts by weight of the elastomer material, as the sole constituent of the dynamic shaft seal made of elemental carbon.
    Type: Grant
    Filed: July 23, 2020
    Date of Patent: January 30, 2024
    Inventors: Jasmin Menzel, Boris Traber, Matthias Adler, Eva Fleischmann, Christine Portela Cubillo
  • Patent number: 11885417
    Abstract: A seal ring for a radial separation seal includes a first ring segment comprising a male portion and a second ring segment comprising a female portion. The female portion is configured to engage the male portion in the manner of a tongue and groove joint. The joint includes an inner interface at which the first ring segment abuts the second ring segment, the inner interface comprising two inner sealing surfaces; and outer interface at which the first ring segment abuts the second ring segment the outer interface comprising two outer sealing surfaces. The outer interface is radially outward from the inner interface so that when the first ring segment is in an engaged position with the second ring segment so that when a fluid flow provided to the inner interface, fluid pressure from the fluid flow pushes the inner sealing surfaces of the inner interface apart.
    Type: Grant
    Filed: March 15, 2022
    Date of Patent: January 30, 2024
    Inventors: Inderpal Sihra, Aidan Nicholls, Isaac Lopez
  • Patent number: 11879550
    Abstract: A seal for a rotating system with two sealing units which are arranged one behind the other along a main axis H, the sealing units each having a through-hole for a shaft and being in interlocking engagement with each other in the circumferential direction and at least one axial compression spring element being arranged between the sealing units.
    Type: Grant
    Filed: November 22, 2021
    Date of Patent: January 23, 2024
    Assignee: STASSKOL GMBH
    Inventors: Felix Kuse, Dennis Kranert
  • Patent number: 11879447
    Abstract: A packing case assembly includes a packing cup configured to be disposed along a piston rod of a reciprocating gas compressor system; and a packing ring set disposed in the packing cup, the packing ring set including multiple rings. The packing ring set is configured to be disposed circumferentially around a portion of the length of the piston rod. A backup packing ring of the packing ring set includes a first region including a polymer, and a second region including a metal.
    Type: Grant
    Filed: September 9, 2021
    Date of Patent: January 23, 2024
    Assignee: Waukesha Bearings Corporation
    Inventors: Jie Zhou, David Donald Johnson, III