Patents Examined by Eugene G. Byrd
  • Patent number: 10385977
    Abstract: A shaft slide ring seal arrangement including a shaft, which has a first and second end, and a slide ring seal, which includes a shaft slide ring connected non-rotatably to the shaft, the axial displaceability whereof is limited at least in the direction of the first end of the shaft by a limiting element, and a slide ring arrangement arranged at a radial distance from the shaft, which slide ring arrangement lies, at a side of the shaft slide ring pointing towards the second end of the shaft, axially adjacent thereto, as well as a retaining ring supported on the shaft, the axial displaceability whereof is limited at least in the direction of the second end of the shaft and which centers the slide ring arrangement, on its side facing away from the shaft slide ring, with respect to the shaft.
    Type: Grant
    Filed: September 1, 2016
    Date of Patent: August 20, 2019
    Assignee: NETZSCH Pumpen & Systeme GmbH
    Inventors: Johann Kreidl, Hisham Kamal, Mikael Tekneyan, Philipp Nuebl
  • Patent number: 10385974
    Abstract: The present invention relates to a passive shutdown sealing device (20) for a reactor coolant pump unit comprising: a split sealing ring (23) having an inactivated position in which a leakage flow is permitted and an activated position in which said ring stops said leakage flow; at least one piston (22) designed to position said split sealing ring (23) in its activated position; locking/unlocking means (25) designed to lock said at least one piston (22) in its inactivated position when the temperature of said locking/unlocking means is below a temperature threshold and to release said at least one piston (22) when the temperature of said locking/unlocking means is above said temperature threshold; elastic means (24) designed to move said at least one piston (22) when said piston is released, so as to position said sealing ring (23) in its activated position.
    Type: Grant
    Filed: January 31, 2013
    Date of Patent: August 20, 2019
    Assignee: Areva NP
    Inventor: Romain Thuillier
  • Patent number: 10385714
    Abstract: In a seal structure that seals a gap between a first structure and a second structure which faces the first structure in a radial direction and rotates relative to the first structure, one of the first structure and the second structure has a base surface and a step surface that protrudes toward the other side from the base surface, and the other is provided with: a first fin which extends toward the step surface and forms a first gap between the step surface; a second fin that, on the downstream side of the first fin, extends toward the base surface and forms a second gap between the base surface; and a protrusion part that is disposed between the first fin and the second fin and that divides a leak flow, into a first vortex along the first fin and a second vortex along the second fin.
    Type: Grant
    Filed: November 26, 2014
    Date of Patent: August 20, 2019
    Assignee: MITSUBISHI HITACHI POWER SYSTEMS, LTD.
    Inventors: Yoshihiro Kuwamura, Kazuyuki Matsumoto, Hiroharu Oyama, Yoshinori Tanaka, Toyoharu Nishikawa, Hidekazu Uehara, Shin Nishimoto
  • Patent number: 10378752
    Abstract: An integrated gasket that provides both wildlife protection and ingress protection in a light fixture. The integrated gasket comprises a body that extends from a top annular edge to a bottom annular edge and defines a through cavity. The body includes a bottom flanged portion and a top pipe receiving portion. The top pipe receiving portion includes a first pipe portion and a second pipe portion that are detachably coupled. Further, the body includes a wiper flange that extends radially inward from the bottom annular edge towards the internal through cavity.
    Type: Grant
    Filed: September 8, 2016
    Date of Patent: August 13, 2019
    Assignee: Eaton Intelligent Power Limited
    Inventor: Craig Maurice Smith
  • Patent number: 10371263
    Abstract: A seal for reducing leakage about a rotating shaft having an axis includes a rotating component configured to be positioned radially outward from and surround the rotating shaft, and including a rotating cylinder defining an annular oil chamber for receiving oil. The seal also includes a static component including a sealing plate configured to extend into the annular oil chamber such that the oil fills a gap between the sealing plate and the rotating cylinder to reduce air leakage between the rotating component and the static component in response to rotation of the rotating component.
    Type: Grant
    Filed: June 23, 2017
    Date of Patent: August 6, 2019
    Assignee: UNITED TECHNOLOGIES CORPORATION
    Inventors: Grace E. Szymanski, Justin Luong
  • Patent number: 10364894
    Abstract: The invention relates to a sealing assembly (1) for sealing a piston rod (2) of a piston compressor, which piston rod extends in an axial direction (A) and can be moved back and forth in the axial direction (A).
    Type: Grant
    Filed: December 2, 2014
    Date of Patent: July 30, 2019
    Assignee: BURCKHARDT COMPRESSION AG
    Inventors: Pascal De Lapersonne, Norbert Feistel, Alexandre Voser
  • Patent number: 10359117
    Abstract: Aspirating face seal between high and low pressure regions of turbomachine between rotatable and non-rotatable members of turbomachine includes gas bearing rotatable and non-rotatable face surfaces, non-rotatable face surface mounted on annular slider on non-rotatable member. Retracting means retracts annular slider away from rotatable member and non-rotatable face surface away from rotatable surface and includes circumferentially spaced apart non-coiled springs axially disposed between slider and non-rotatable engine member. Leaf springs may include first and second ends mounted or attached to first and second mounting lugs or tabs attached to non-rotatable member and slider respectively and middle portion between ends. Springs oriented for retracting slider if slider contacts rotatable member. Primary and starter seal teeth may be mounted on carrier on rotatable member. Primary seal tooth may be on non-rotatable member and starter seal tooth on rotatable member.
    Type: Grant
    Filed: March 6, 2017
    Date of Patent: July 23, 2019
    Assignee: General Electric Company
    Inventors: Brian Joseph Prenger, Richard Alan Wesling, Nathan Evan McCurdy Gibson, Ravindra Shankar Ganiger, Narendra Anand Hardikar, Anand Aravindrao Kulkarni
  • Patent number: 10352454
    Abstract: In an embodiment, a mechanical seal device has a mating ring (131) that rotates with a rotating shaft (101), as well as an opposing seal ring (133) that slidably contacts the mating ring (131), so as to seal between the rotating shaft (101) and a seal cover (105) fixed to an equipment main body (102); wherein the seal cover (105) is a split structure comprising at least a first seal cover (107, 108) and second seal cover (106), the first seal cover (107, 108) is detachably connected in the axial direction by leaving the second seal cover (106) free from it, and the seal ring (133) is connected to the first seal cover (107, 108) in a securely following manner.
    Type: Grant
    Filed: October 27, 2015
    Date of Patent: July 16, 2019
    Assignees: EAGLE INDUSTRY CO., LTD., EAGLEBURGMANN JAPAN CO., LTD.
    Inventors: Masakazu Kito, Hiroshi Tanaka
  • Patent number: 10352446
    Abstract: A combined oil control ring comprising a pair of annular side rails each having a gap, and an axially corrugated spacer expander arranged between the side rails; the corrugated spacer expander having on the inside seating tabs for pushing inner peripheral surfaces of the side rails; the side-rail-pushing surface of each seating tab being provided with a nitrided layer; an entire surface of each spacer expander except for those provided with the nitrided layer being coated with a plating film; and the plating film having Vickers hardness HV0.01 of 300 or less.
    Type: Grant
    Filed: December 22, 2015
    Date of Patent: July 16, 2019
    Assignee: KABUSHIKI KAISHA RIKEN
    Inventors: Takayuki Ichikawa, Takuma Sekiya
  • Patent number: 10352453
    Abstract: The concentration of a sealed fluid in the vicinity of a sliding face between a stationary-side seal ring and a rotating-side seal ring is prevented without increasing the number of components and without providing a large-scale external circulation device. A seal cavity includes a radial sliding bearing 11, 25 for supporting a rotating shaft 2, and a sealing means 4, 30 on the side opposite to a sealed fluid source of the radial sliding bearing 11, 25 in a rotation axis direction, for sealing a sealed fluid. Fluid introduction holes 20 are provided in the radial sliding bearing 11, 25 for connecting the sealed fluid source side and the vicinity of the sealing means 4, 30 on the high-pressure fluid side.
    Type: Grant
    Filed: August 26, 2015
    Date of Patent: July 16, 2019
    Assignee: EAGLE INDUSTRY CO., LTD.
    Inventor: Masatoshi Itadani
  • Patent number: 10352449
    Abstract: A mechanical seal has a stationary side seal ring and a rotating side seal ring in opposed sliding contact with the stationary side seal ring. One seal ring of the stationary side seal ring and the rotating side seal ring is disposed on a sealed fluid side and constitutes a slide bearing which supports the rotating shaft. The other seal ring is disposed on the opposite side to the sealed fluid side, and a pressing member is attached to the other seal ring for biasing the other seal ring in the axial direction to press sealing faces of both the seal rings.
    Type: Grant
    Filed: July 14, 2015
    Date of Patent: July 16, 2019
    Assignee: EAGLE INDUSTRY CO., LTD.
    Inventor: Masatoshi Itadani
  • Patent number: 10344539
    Abstract: A method of sealing an annulus between inner and outer pipe sections of a pipe-in-pipe system includes positioning a sealing mass in the annulus in contact with the inner and outer pipe sections. Deforming the sealing mass occurs, for example by shearing and compression, by effecting relative longitudinal movement between the inner and outer pipe sections. Fixing the inner and outer pipe sections against reverse relative longitudinal movement to maintain deformation of the sealing mass is then performed. The inner pipe section and a displaced outer pipe section may be fixed by welding them to respective pipes of an adjoining pipe-in-pipe structure. Opposed ramp surfaces, each being similarly inclined relative to the longitudinal direction, extend into the annulus from respective ones of the pipe sections such that the sealing mass may be compressed between the ramp surfaces.
    Type: Grant
    Filed: February 2, 2016
    Date of Patent: July 9, 2019
    Assignee: Acergy France SAS
    Inventors: Gerald Gerometta, Nathalie Delaunay, Henri Rousseau
  • Patent number: 10344867
    Abstract: In an embodiments, a slide component includes a pair of slide parts that relatively slide on each other, one of the slide parts being provided in a sealing face with fluid circulation grooves 10 that communicate with a high-pressure fluid side via inlet portions and outlet portions and are separated from a low-pressure fluid side by land portions, the other of the slide parts being circumferentially provided in a sealing face with a plurality of interference grooves 15, 16, 17, 20 for producing pressure variations in a fluid in the fluid circulation grooves 10, adjacent ones of the interference grooves 15, 16, 17, 20 being set to have different shapes.
    Type: Grant
    Filed: August 26, 2015
    Date of Patent: July 9, 2019
    Assignee: EAGLE INDUSTRY CO., LTD.
    Inventors: Masatoshi Itadani, Kazumasa Sungawa, Yuichiro Tokunaga, Hideyuki Inoue, Takeshi Hosoe, Ryoma Yamakawa, Yuta Negishi, Kenji Kiryu, Keiichi Chiba, Akira Yoshino, Hiroshi Kubota
  • Patent number: 10337621
    Abstract: A non-contact seal assembly is provided. The non-contact seal assembly includes a plurality of seal shoes arranged about a centerline in an annular array, the seal shoes include a first seal shoe extending axially along the centerline between a first shoe end and a second shoe end. The non-contact seal assembly may comprise a seal base circumscribing the annular array of the seal shoes. The non-contact seal assembly may further comprise a plurality of spring elements, each of the spring elements radially between and connecting a respective one of the seal shoes with the seal base, where the plurality of seal shoes each includes a weight reduction pocket formed in a circumferential region of the seal shoe.
    Type: Grant
    Filed: June 23, 2017
    Date of Patent: July 2, 2019
    Assignee: United Technologies Corporation
    Inventors: Tara L. D'Ambruoso, Dwayne K. Mecklenburg
  • Patent number: 10337617
    Abstract: A combination seal assembly includes: at least one can structure; a primary seal built onto the at least one can structure and having at least one seal lip; and a scraper seal built onto the at least one can structure and having at least one scraper lip. The at least one can structure supports the primary seal and the scraper seal and allows simultaneous installation of the at least one can structure, the primary seal, and the scraper seal into a hardware space.
    Type: Grant
    Filed: March 9, 2016
    Date of Patent: July 2, 2019
    Assignee: Trelleborg Sealing Solutions US, Inc.
    Inventors: Derek N. Desjardins, Samuel D. Wagoner, Jeffrey A. Baehl, Matthew C. Cole, Harlan H. Hart
  • Patent number: 10316974
    Abstract: Air-riding seal arrangement between two components are rotatable relative to each other about a rotation axis. The seal arrangement includes an axially slidable carrier module mounted to one component and runner provided by other components. The carrier module and runner have respective and opposing annular sealing faces in a seal arrangement normal operation are axially spaced to form an air-seal therebetween separating a high-pressure region at one side of the air-seal from low-pressure region at the other side. The carrier module has a front and rear portions, and carrier module sealing face is provided by the front portion. The front portion has first and second rotation positions relative to the rear portion, the first rotation position being in normal operation, and second rotation position being in event of high speed touchdown of the annular sealing faces when contact between sealing faces rotates the front portion to the second rotation position.
    Type: Grant
    Filed: August 21, 2017
    Date of Patent: June 11, 2019
    Assignee: ROLLS-ROYCE plc
    Inventors: Helen Webster, Luke Hamilton, Murad Khader, Robert Grasse
  • Patent number: 10315349
    Abstract: A sealing assembly for a vehicle comprises a sealing body extruded from an elastomeric material formed from an ethylene propylene diene monomer and having a base and first and second legs spaced from one another extending from the base. The base and the legs define an interior surface and a first channel for receiving a panel, and further define an exterior surface opposite the interior surface. The sealing body defines an overmold region opposite the first channel extending along a portion of the exterior surface of the sealing body. The sealing assembly further comprises a bonding layer of a first thermoplastic vulcanizate co-extruded onto the overmold region of the sealing body, and a molded layer of a second thermoplastic vulcanizate molded onto the bonding layer with the molded layer defining a second channel for receiving a fixed window of the vehicle. Also disclosed is a method for manufacturing a sealing assembly.
    Type: Grant
    Filed: February 9, 2015
    Date of Patent: June 11, 2019
    Assignee: Henniges Automotive Sealing Systems North America, Inc.
    Inventors: Robert M. B. Krueger, Christian Heintz, Dirk Cholewa
  • Patent number: 10300627
    Abstract: A method of forming a flexible carbon composite self-lubricating seal includes compressing a carbon composite mixture into a mold forming a flexible carbon composite self-lubricating annular seal.
    Type: Grant
    Filed: November 25, 2014
    Date of Patent: May 28, 2019
    Assignee: BAKER HUGHES, A GE COMPANY, LLC
    Inventors: Lei Zhao, Zhiyue Xu
  • Patent number: 10302199
    Abstract: A seal for a rotary machine may include an end cap configured to be coupled to the rotary machine. The end cap may define an end face and a bore. The seal may also include a sleeve received through the bore of the end cap and configured to receive a shaft associated with the rotary machine. The seal may also include a collar coupled to the sleeve and configured to couple the sleeve to the shaft associated with the rotary machine. The seal may further include a spacer coupled to the end face of the end cap, in a first position, such that at least a portion the spacer is between the collar and the end face of the end cap, and, in a second position, such that the portion of the spacer is not between the collar and the end face of the end cap.
    Type: Grant
    Filed: June 27, 2017
    Date of Patent: May 28, 2019
    Assignee: Wilkins IP, LLC
    Inventor: Stephen P. Wilkins
  • Patent number: 10300498
    Abstract: A seal for a centrifuge for preventing material from leaking out of an effluent portion into a drive portion where the seal is disposed between a basket carrier and a drive portion, and the basket carrier is disposed between the effluent portion and the drive portion. The seal can also be disposed on a stiffener, the stiffener disposed between the basket carrier and the drive portion. A sealing arrangement for a centrifuge including a contact seal and a labyrinth disc, for preventing liquid from leaking out of an effluent portion into a product discharge outlet and for preventing material from entering into the effluent portion through the product discharge outlet. Also provided is a centrifuge incorporating the seal and/or the sealing arrangement.
    Type: Grant
    Filed: September 17, 2015
    Date of Patent: May 28, 2019
    Assignee: FLSmidth A/S
    Inventors: Mathew Walker, Michael J. Gardiner, Tony Elliott