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公开(公告)号：US12196322B1
公开(公告)日：2025-01-14
申请号：US17824354
申请日：2022-05-25
Applicant: Sealing Equipment Products Co., Inc.
Inventor： Chuck Tanner
Abstract: A gland seal assembly including a stuffing box and packing positioned within the stuffing box. A gas seal assembly is mounted adjacent the stuffing box, the gas seal assembly including a gas inlet port and a gas outlet port interconnected by one or more passageways. A gland follower is positioned partially within the gas seal assembly and in adjustable engagement with the packing. The gas seal assembly further includes gas dispersal device receiving gas from the gas inlet port and directing gas into a shaft aperture formed through the gas seal assembly.
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公开(公告)号：US12172291B2
公开(公告)日：2024-12-24
申请号：US18032093
申请日：2021-10-14
Applicant: Hilti Aktiengesellschaft
Inventor： Jens Kondratiuk , Daniel Hummel
Abstract: A mobile power tool having a drive unit that has an aqueous lubricant and/or the drive unit is designed for operation with the aqueous lubricant, wherein the aqueous lubricant comprises at least 5 percent water.
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3.发明授权公开(公告)号：US12168276B2
公开(公告)日：2024-12-17
申请号：US17799989
申请日：2021-06-17
Applicant: HERMETIK HYDRAULIK AB
Inventor： Jürgen Gaydoul
Abstract: A sealing device for sealing a leakage flow on a machine element, which is circular in cross section, of a working machine includes a housing, which has an upstream end and a downstream end and through which the machine element extends, an upstream pressure chamber which is arranged at the upstream end of the housing, a downstream pressure chamber which is arranged at the downstream end of the housing, and a sealing element which is arranged between the upstream pressure chamber and the downstream pressure chamber. The sealing element is mounted within the housing and rests sealingly against the machine element. A bypass line runs around the sealing element and fluidly connects the upstream pressure chamber to the downstream pressure chamber. A throttle element designed to reduce the pressure of a flowing leakage fluid by a predetermined pressure difference is arranged in the bypass line.
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公开(公告)号：US20240305158A1
公开(公告)日：2024-09-12
申请号：US18011081
申请日：2022-10-24
Applicant: Shenzhen Seauto Technology Co., Ltd.
Inventor： ZHUOMING DENG
IPC: F16J15/40 , F16J15/3248
CPC classification number: F16J15/40 , F16J15/3248
Abstract: The present invention provides an installing and sealing mechanism configured for a driving motor of a swimming pool robot, which comprising a sealing housing and a driving motor, two sides of the sealing housing are integrally provided with a sealed fixing seat, and a sealing member is mounted on an outer side of the sealed fixing seat, one of the sealed fixing seat and the sealing member is provided with a sealing groove for installing sealing strips, and the central part of the sealing member is provided with a sealing cavity, for installing an oil seal, the driving motor is mounted inside the sealing housing, and a motor output shaft of the driving motor penetrates through the sealing housing and the sealing member. the sealing member is fixed in the sealed fixing seat through the bolt holes in the fixing, so that the bottom of the round fixing seat abuts against and closely contacts the sealing strip installed in the sealing groove, and a closed space is formed in the sealed fixing seat, a large amount of lubricating oil is filled in the sealed cavity to form an oil seal, thereby achieving the purpose of sealing and effectively preventing leakage.
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5.发明公开公开(公告)号：US20240060565A1
公开(公告)日：2024-02-22
申请号：US18499889
申请日：2023-11-01
Applicant: A.W. CHESTERTON COMPANY
Inventor： Henri Vincent AZIBERT , Robert James POWERS , Michael P. GRIMANIS , Philip Michael MAHONEY, JR.
IPC: F16J15/40
CPC classification number: F16J15/40
Abstract: A system for regulating an axial biasing force applied to a stacked set of packing elements mounted within stationary equipment, comprising a packing loading assembly for sealing a process fluid within the stationary equipment and for applying the axial biasing force to the packing elements via a pressurized fluid from a pressure regulator. The packing loading assembly includes a gland element for mounting to the stationary equipment by a plurality of gland bolts, and an external actuation subsystem for coupling to at least one of the plurality of gland bolts for applying an axial actuation force directly to the gland element in response to the pressurized fluid. The gland element in response to the axial actuation force applies the axial biasing force to the packing elements.
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Patent Agency Ranking
公开(公告)号：US11833768B2
公开(公告)日：2023-12-05
申请号：US17475066
申请日：2021-09-14
Applicant: The Boeing Company
Inventor： Richard Dean Widdle
CPC classification number: B29C70/845 , F16J15/40 , B29L2031/3085
Abstract: Liquid shim injection devices and methods for injecting liquid shim material into a gap between adjacent components of an assembly. The liquid shim injection devices comprise a body, which comprises an injection shaft, a liquid shim conduit defined within the body and configured to channel liquid shim material within the injection shaft, and a fluid-permeable region formed along the injection shaft, an actuated fluid seal operably coupled to the injection shaft and configured to be selectively conformed among a plurality of conformations, and a fluid seal actuator assembly configured to transition the actuated fluid seal among the plurality of conformations. Methods comprise inserting the injection shaft into a bore that extends through the adjacent components of the assembly, forming a fluid seal between the liquid shim injection device and an interior component of the assembly, and flowing the liquid shim material from the liquid shim injection device into the gap.
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公开(公告)号：US20230287978A1
公开(公告)日：2023-09-14
申请号：US18119877
申请日：2023-03-10
Applicant: Atlas Copco Mafi-Trench Company LLC
Inventor： Louis Mann
CPC classification number: F16J15/164 , F16J15/40 , F01D11/06 , F01D11/025
Abstract: Sealing gas systems and related methods are provided. The sealing gas system includes a machine having a first end, a bearing carrier, and a shaft seal vent, wherein the machine receives a sealing gas flow; and at least one processor, wherein the at least one processor includes or is in communication with a temperature controller for detecting a temperature of a vent gas flow at the shaft seal vent; wherein the at least one processor and/or the temperature controller are configured to detect a process gas flow through the shaft seal vent based on the detected temperature of the vent gas flow at the shaft seal vent.
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公开(公告)号：US11698080B2
公开(公告)日：2023-07-11
申请号：US17813097
申请日：2022-07-18
Applicant: EBARA CORPORATION
Inventor： Shigeru Yoshikawa , Junichi Hayakawa
CPC classification number: F04D29/124 , F04D29/128 , F04D29/143 , F04D29/582 , F04D29/586 , F04D29/588 , F16J15/3404 , F16J15/3492 , F16J15/406 , F04D1/00
Abstract: A sealing system includes: a double mechanical seal having a pump-side sealing mechanism (10, 12) and an atmospheric-side sealing mechanism (11, 13); a pump mechanism (19) driven by a rotational shaft (1); a first medium circulation line (30) for circulating a fluid barrier-and-cooling medium between a first chamber (22a) and a second chamber (22b), the first medium circulation line (30) being coupled to the first chamber (22a) and the second chamber (22b), the fluid barrier-and-cooling medium being different from a fluid handled by the centrifugal pump; a heat exchanger (21) and a shut-off valve (28) attached to the first medium circulation line (30); a second medium circulation line (31) bypassing the shut-off valve (28); and a medium pressurizing pump (45) and an on-off valve (23) attached to the second medium circulation line (31).
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公开(公告)号：US11686346B2
公开(公告)日：2023-06-27
申请号：US17712233
申请日：2022-04-04
Applicant: Stein Seal Company
Inventor： Glenn M. Garrison
CPC classification number: F16C32/0662 , F01D11/04 , F01D25/22 , F16C32/0607 , F16C32/0625 , F16J15/40 , F16J15/441 , F16J15/442 , F05D2250/75 , F16C2360/23
Abstract: A circumferential seal assembly suitable for forming a thin film between a rotatable runner and a sealing ring is presented. The assembly includes an annular seal housing, a rotatable runner, an annular seal ring, and a plurality of groove structures. Each groove structure includes a groove and an optional feed groove. The groove includes at least two adjoining steps defined by base walls arranged to decrease depthwise. Two adjoining base walls are disposed about a base shoulder. Each base shoulder locally redirects a longitudinal flow to form an outward radial flow in the direction of the annular seal ring. The base walls are bounded by and intersect a pair of side walls. A side wall includes side shoulders which narrows the groove widthwise and locally redirects the longitudinal flow to form a lateral flow in the direction of the other side wall. Outward and lateral flows separately or in combination enhance stiffness of a thin-film layer between the annular seal ring and the rotatable runner.
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公开(公告)号：US20230114474A1
公开(公告)日：2023-04-13
申请号：US17911731
申请日：2021-01-26
Applicant: EagleBurgmann Germany GmbH & Co. KG
Inventor： Klaus Lang , Thomas Zauner
Abstract: The invention relates to a mechanical seal assembly comprising a slide ring seal (2) having a rotating slide ring (3) with a first slide surface (30) and a stationary slide ring (4) with a second slide surface (40), a sealing gap (5) being defined between the first and second slide surfaces, the stationary slide ring (4) having a through hole (42) extending from a rear side (41) of the stationary slide ring to an orifice (43) of the second slide surface (40) and a gas supply line (8) extending from a gas source to an inlet (44) of the through hole (42) at the rear side of the stationary slide ring, wherein grooves (6, 7) are formed in at least one of the sliding surfaces (30, 40), the grooves being arranged in radial direction between the orifice (43) of the through hole (42) and a radially outer outlet portion (50) of the sealing gap (5).
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