Patents Examined by Nicholas L Foster
  • Patent number: 12379030
    Abstract: An improved bearing or bushing body extraction from a stuffing box using jack screws is provided. The bearing or bushing seal body includes at least one jack screw on each half of a split body. The jack screw passes axially through the sidewall of the body to the inner flange of the stuffing box and turning the jack screw against the inner flange to lift the body from the stuffing box. A single inner threaded or double threaded insert with a reverse outer thread and standard inner thread is inserted into the bottom wall of the body so that the body may be installed flush against the inner flange. By turning the jack screw through the insert and against the flange, the seal body is pushed out rather than pulled.
    Type: Grant
    Filed: August 7, 2023
    Date of Patent: August 5, 2025
    Assignee: SEAL-RYT CORP.
    Inventors: Thomas B Monahan, Michael F Huard
  • Patent number: 12378892
    Abstract: A flat shaped sealing device for sealing a gap between two parts having a sealing length and a sealing width from one side edge to the opposite side edge of at most 0.2-times the sealing length and having a sealing thickness from a bottom side to a top side of at most 0.2-times the sealing width. The sealing device includes a head section and an adjacent main section. The head section includes an abutment and a spring, wherein the abutment is displaceable towards the main section and the spring is therefore arranged between the abutment and the main section and is able to exert a force on the abutment.
    Type: Grant
    Filed: July 12, 2022
    Date of Patent: August 5, 2025
    Assignee: Siemens Energy Global GmbH & Co. KG
    Inventors: Mirko Milazar, Matthew Gent, Markus Raben, Patrick M. Ritchie, Stefan Wanjura, Kunyuan Zhou
  • Patent number: 12372176
    Abstract: A device has a flange including a base body with a main contact face and a further flange including a further base body with a further main contact face. In a mounted state the flange is connected to the further flange with a sealing element therebetween. The flange has a recess which adjoins the main contact face and in which the sealing element is arranged. The further flange has an extension which protrudes from the further base body at the further main contact face and engages in the recess and contacts the sealing element. The extension positions and centers the sealing element and/or compresses the sealing element. The flange and the further flange jointly delimit a groove which forms part of the recess and partially receives the sealing element, and a groove width increases from an opening of the groove to a low point of the groove.
    Type: Grant
    Filed: June 30, 2023
    Date of Patent: July 29, 2025
    Assignee: Gericke AG
    Inventors: Markus H. Gericke, Frank Lauer, Reto Schaffner
  • Patent number: 12359727
    Abstract: An active flush regulation system having a rotary component, a stationary component, one or more biasing elements for applying a biasing force to the stationary component in a first direction for biasing together a rotor sealing surface and a stator sealing surface, and a holder component for holding one or more of the stationary component and the rotary component. The rotor sealing surface and the stator sealing surface form an under-balanced seal face, where in a first closed position the rotor sealing surface and the stationary sealing surface contact each other, and when flushing fluid is introduced to the seal face, the flushing fluid acts to place the rotor sealing surface and the stator sealing surface in an open position where the rotor sealing surface and the stator sealing surface are separated from each other to form a gap to allow the flushing fluid to pass therealong.
    Type: Grant
    Filed: August 5, 2024
    Date of Patent: July 15, 2025
    Assignee: A.W. CHESTERTON COMPANY
    Inventors: Robert James Powers, Henri Azibert
  • Patent number: 12344369
    Abstract: A helically shaped dynamic seal ring is provided. The helically shaped dynamic seal ring includes a spirally wound body and a snubbing orifice area formed in the spirally wound body. The spirally wound body is configured to expand in response to contacting a snubbed stroke range of an actuator piston. The spirally wound body is configured to contract in response to distancing from the snubbed stroke range of the actuator piston.
    Type: Grant
    Filed: May 5, 2023
    Date of Patent: July 1, 2025
    Assignee: Goodrich Corporation
    Inventor: Kyle M. Madey
  • Patent number: 12345334
    Abstract: A stuffing box assembly for a fluid end of a hydraulic fluid pump includes a first stuffing box member having a first plunger bore configured to receive a plunger of the hydraulic fluid pump and a plurality of seals. The first stuffing box member further comprises a first bore spaced apart from the plunger bore. A second stuffing box member has a threaded stuffing nut bore configured to receive a stuffing nut of the hydraulic fluid pump. The second stuffing box member further comprises a second bore spaced apart from the stuffing nut bore. A fastener is configured to extend through the first and second bores to secure the first stuffing box member to the second stuffing box member.
    Type: Grant
    Filed: July 28, 2022
    Date of Patent: July 1, 2025
    Assignee: GARDNER DENVER PETROLEUM PUMPS, LLC
    Inventors: Chance Ray Mullins, Peter Ross Ehlers
  • Patent number: 12331833
    Abstract: A slip coat composition, a gasket, and a method forming a gasket including a slip coat. The slip coat composition includes an ultra-violet light cationic curable coating composition including hollow glass microspheres and micronized silica. The gasket includes a seal having an exposed surface on which the slip coat is disposed. A base layer defining a first channel is injection molded and a seal is injection molded onto the base layer at least partially within the first channel. The seal includes an exposed surface which exhibits a texture. The slip coat composition is applied to the exposed surface of the seal and cured.
    Type: Grant
    Filed: September 22, 2023
    Date of Patent: June 17, 2025
    Assignee: GLOBAL SUPPLY INNOVATIVE ENGINEERING, LLC
    Inventors: Randall Leach, Shawn O'Neill, Paul Snowwhite
  • Patent number: 12331852
    Abstract: A seal system includes a first annular component having a radially-outer surface with a first threaded portion and a first sealing portion, wherein the first sealing portion has a first angled surface that is oriented at a first angle relative to a vertical axis. The seal system also includes a second annular component having a radially-inner surface with a second threaded portion and a second sealing portion, wherein the second sealing portion has a second angled surface that is oriented at a second angle relative to the vertical axis, and the second angle is different from the first angle. The first annular component and the second annular component are configured to threadably couple to one another via the first threaded portion and the second threaded portion and to form a metal-to-metal seal against one another via the first angled surface and the second angled surface.
    Type: Grant
    Filed: September 23, 2021
    Date of Patent: June 17, 2025
    Assignee: Schlumberger Technology Corporation
    Inventors: Gareth Brown, Ross Stevenson, Kody Carrillo, Ian McDaniel
  • Patent number: 12313163
    Abstract: An interlocking rotary union seal has pockets at one or more edges of a dynamic seal ring. An elastomer energizer may deform by compression and under pressure into the pockets creating an interlocking geometry which prevents relative rotation between the elastomer energizer and the dynamic seal ring.
    Type: Grant
    Filed: February 11, 2022
    Date of Patent: May 27, 2025
    Assignee: Atlas Seals, Inc.
    Inventor: Thomas P. Zitting
  • Patent number: 12297940
    Abstract: A reusable flexible seal is made from a plurality of bonded layers of a fiber base impregnated with an elastomeric material. The flexible seal is sized and shaped to be compressed in a shaped groove created between two pipeline elements to be connected together. At least one layer of fabric may be disposed in a preferred embodiment on the surface of the flexible seal to help prevent extrusion of the elastomer of the flexible seal the joint between the connected pipeline elements during connection. A plastic or steel band may be disposed in the outward radial direction of the groove to improve the prevention of seepage or leakage.
    Type: Grant
    Filed: August 22, 2023
    Date of Patent: May 13, 2025
    Assignee: Utex Industries Inc.
    Inventors: John Miller, Zachery Kokel
  • Patent number: 12297908
    Abstract: A seal for an aircraft engine includes an annular body receivable in interference fit in a radial spacing defined between inner and outer cylindrical components of the aircraft engine, the annular body defining a central axis coaxial with the inner and outer cylindrical components, the annular body including an inner portion defining an inner diameter, an outer portion defining an outer diameter, and an intermediate portion extending between the inner and outer portions. The outer portion is slidably engageable to the outer cylindrical component at an outer contact sealing portion of the annular body. One of the inner portion and the outer portion defines at least one cut extending from the one of the inner portion and the outer portion toward another one of the inner portion and the outer portion. A method for sealing a radial spacing between coaxial cylindrical components in an aircraft engine is also described.
    Type: Grant
    Filed: June 9, 2022
    Date of Patent: May 13, 2025
    Assignee: PRATT & WHITNEY CANADA CORP.
    Inventors: Tibor Urac, Sébastien Bergeron
  • Patent number: 12297662
    Abstract: A handle assembly includes a removable handle positioned over a sleeve. The handle assembly includes a catch positioned within the sleeve, and when extended, the catch prevents relative movement between the handle and the sleeve. The handle assembly includes a spindle positioned within the sleeve. The spindle has a longitudinal axis. The spindle is rotatable between a locked position and an unlocked position. When in the locked position, the sleeve is not rotatable, and when in the unlocked position, the sleeve is rotatable. The handle assembly includes a support structure that is configured to support the spindle. The support structure is in a fixed rotational relationship with respect to the handle. When the catch is in an extended position and the spindle is in the locked position, deflection of the spindle in a direction transverse to the longitudinal axis is resisted by way of the support structure.
    Type: Grant
    Filed: February 5, 2020
    Date of Patent: May 13, 2025
    Assignee: ASSA ABLOY Americas Residential Inc.
    Inventors: James Lin, Mark Bloom
  • Patent number: 12297665
    Abstract: An exit device assembly for coupling to a door having a first side and second side. A first exit device may be coupled to the first side of the door. The first exit device may include a main tube extending from a first end to a second end and a first adjustment tube coupled to the first end of the main tube. The first adjustment tube may be axially adjustable relative to the main tube along a first adjustment axis. An actuator assembly may be supported within an interior of the main tube of the first exit device and may be moveable between a first position and a second position. A latchbolt may be coupled to the actuator assembly and may be moveable between a retracted position and an extended position in which the latchbolt engages a latch.
    Type: Grant
    Filed: October 28, 2019
    Date of Patent: May 13, 2025
    Assignee: dormakaba USA Inc.
    Inventors: Curtis Massey, Chris Fessett, Mandeep Singh
  • Patent number: 12292117
    Abstract: A sealing device for a shaft passing through a partition wall includes a housing having an opening for a shaft to pass through, and an annular groove. The sealing device also has a rigid ring arranged with axial and radial play in the annular groove of the housing and having a through-opening for the shaft to pass through, and an annular groove on an inner circumferential surface of said through-opening. The sealing device also has an elastic ring arranged in the annular groove of the rigid ring, and a sliding band for bearing against the shaft, which is arranged circumferentially on the inner circumferential surface of the through opening of the rigid ring and covers the annular groove of the rigid ring and the elastic ring arranged therein, the elastic ring being urged against the sliding band.
    Type: Grant
    Filed: February 1, 2024
    Date of Patent: May 6, 2025
    Assignee: Geislinger Group GmbH
    Inventors: Matthias Geislinger, Cornelius Geislinger, Christof Sigle
  • Patent number: 12292113
    Abstract: A first plate portion abuts against a cylinder head and has a substantially constant plate thickness. A second plate portion abuts against a cylinder block and has a substantially constant plate thickness. An intermediate plate portion is sandwiched between the first plate portion and the second plate portion and has a substantially constant plate thickness. A shim is sandwiched between the first plate portion and the intermediate plate portion and is disposed over an entire periphery of a peripheral edge of a combustion chamber hole. The shim includes a gradually changing portion. The gradually changing portion has a thickness in the hole axis direction that becomes thicker with a separation from the peripheral edge of the combustion chamber hole.
    Type: Grant
    Filed: April 22, 2022
    Date of Patent: May 6, 2025
    Assignee: KABUSHIKI KAISHA TOYOTA JIDOSHOKKI
    Inventor: Keisuke Nishimura
  • Patent number: 12292115
    Abstract: A sealing structure has a sealing device which is a plane seal disposed in an annular groove provided in one of two members and which seals the annular gap between the two members. The sealing device includes a seal member made of a rubber-shaped elastic body and disposed on a high-pressure side and a backup ring made of a resin mounted adjacent to the seal member on a low-pressure side of the seal member. The backup ring has a ring-like shape with ends in which a notch is formed in a part thereof, and the notch extends parallel to the thickness direction of the backup ring, and extends so as to intersect the radial direction of the backup ring. The seal member and the backup ring are disposed between the two members in a state of being pressurized from the two members, respectively.
    Type: Grant
    Filed: April 22, 2021
    Date of Patent: May 6, 2025
    Assignee: NOK CORPORATION
    Inventors: Hiromasa Ichikawa, Eizo Hayashi
  • Patent number: 12286815
    Abstract: An LED display screen lock includes a handle, a lock seat and a lock core. The lock seat includes a base, a through hole and a pin slidably disposed on the base. The lock core is rotatably disposed on the handle and received in the through hole. A locking hole is formed on the lock core and the pin is inserted in the locking hole. An unlocking portion is disposed on a circumference of the handle. The unlocking portion is abutted against the pin, in order to drive the pin to exit the locking hole.
    Type: Grant
    Filed: September 13, 2022
    Date of Patent: April 29, 2025
    Assignee: UNILUMIN GROUP CO., LTD
    Inventor: Yulong Xiao
  • Patent number: 12287035
    Abstract: Provided is a self-cooling device sealed with a magnetic liquid, related to the field of mechanical engineering sealing technology. The device includes: a tank body, a pole-tooth, a rotary shaft, a magnetic liquid, a first gasket ring, a second gasket ring, a first pole-shoe, a permanent magnet, a third gasket ring, a second pole-shoe, a fourth gasket ring, a fan, a bolt, an end cover, a second U-shape soaking rod, and a first U-shape soaking rod.
    Type: Grant
    Filed: October 27, 2023
    Date of Patent: April 29, 2025
    Assignees: BEIJING JIAOTONG UNIVERSITY, TSINGHUA UNIVERSITY
    Inventors: Decai Li, Zhibin Wang, Xinzhi He, Zulong Yang
  • Patent number: 12281709
    Abstract: Provided is a piston ring including: a low-pressure side ring; and a high-pressure side ring, the low-pressure side ring and the high-pressure side ring are arranged stacked in a direction along the axis so that the high-pressure side ring is closer to a fluid to be compressed, a low-pressure side rotation restriction part configured to restrict rotation in the circumferential direction relative to the piston is formed to the low-pressure side ring, a high-pressure side rotation restriction part configured to restrict rotation in the circumferential direction relative to the piston and a low-pressure side protrusion protruding toward the low-pressure side ring and inserted in the low-pressure side abutment are formed to the high-pressure side ring, and the low-pressure side protrusion is inserted in a low-pressure side abutment with clearances being provided in both sides in the circumferential direction between the low-pressure side ring and the low-pressure side protrusion.
    Type: Grant
    Filed: June 15, 2022
    Date of Patent: April 22, 2025
    Assignees: MITSUBISHI HEAVY INDUSTRIES, LTD., KABUSHIKI KAISHA RIKEN
    Inventors: Motoshi Harada, Kenji Nakamichi, Yuichi Kihara, Kimihiko Mitsuda, Hideaki Asai, Jun Fukada, Daisuke Hirayama
  • Patent number: 12281702
    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: January 30, 2024
    Date of Patent: April 22, 2025
    Assignee: RTX Corporation
    Inventor: Anthony R. Bifulco