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公开(公告)号：WO2022207337A1
公开(公告)日：2022-10-06
申请号：PCT/EP2022/056973
申请日：2022-03-17
Applicant: ALFA LAVAL OLMI S.P.A
Inventor： COLOMBO, Marco , MILESI, Luca
Abstract: A sealing device (10) for bores, in particular bores (12) obtained on a header portion (14) of a heat exchanger, the sealing device (10) comprising: at least one bolt-type plug (16), which is provided with a head (18) and with a substantially cylindrical shank (20), wherein the shank (20) has a threaded cylindrical surface (22) which is substantially parallel to a central rotation axis (A) of the plug (16) and wherein the plug (16) is designed to be inserted into a corresponding bore (12) in a threaded coupling; and at least one annular gasket (24), which is provided with a central through hole (26) having a predefined internal diameter (B), wherein the gasket (24) is designed to be axially inserted around the shank (20) to make seal between the head (18) of the plug (16) and the bore (12). The plug (16) is provided with at least one annular seat (28) for accommodating the gasket (24). The seat (28) is arranged at a root connection between the head (18) and the shank (20) of the plug (16). The seat (28) comprises: a radial annular contact surface (30) which is substantially flat in the radial direction, which is obtained on a portion of the head (18) facing the shank (20) and which is substantially perpendicular to the central rotation axis (A), wherein the radial annular contact surface (30) is designed to be in contact with a radially oriented annular contact portion (32) of the gasket (24); and an axial annular contact surface (34) which is substantially flat in the axial direction, which is obtained on a root portion of the shank (20) at the radial annular contact surface (30) and which is substantially parallel to the central rotation axis (A), wherein the axial annular contact surface (34) has an internal diameter (C) which is substantially equal to the internal diameter (B) of the central through hole (26) of the gasket (24), and wherein the axial annular contact surface (34) is designed to form an axial centering shoulder for the gasket (24). The axial annular contact surface (34) is provided with at least one circumferential groove (38) having an internal diameter (D) which is smaller than the internal diameter (C) of the axial annular contact surface (34).
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公开(公告)号：WO2022207336A1
公开(公告)日：2022-10-06
申请号：PCT/EP2022/056970
申请日：2022-03-17
Applicant: ALFA LAVAL OLMI S.P.A
Inventor： GOZZINI, Alberto
IPC: F16L15/04 , F16L19/00 , F16B43/00 , F16L15/00 , F28F9/02 , F28F11/02 , F16B13/00 , F16L55/11 , F28F11/04
Abstract: A sealing device (10) for bores, in particular bores (12) obtained on a header portion (14) of a heat exchanger, the sealing device (10) comprising: at least one bolt-type plug (20), which is provided with a head (22) and with a substantially cylindrical shank (24), wherein the shank (24) has a threaded side surface (26) and a base surface (28) which is substantially perpendicular to a central rotation axis (A) of the plug (20), and wherein the plug (20) is designed to be inserted into a corresponding bore (12) in a threaded coupling; at least one disk-shaped gasket (30), which is provided with a substantially flat seal surface (32) and with a substantially flat contact surface (34), which is opposite to the seal surface (32); and at least one pusher assembly (36, 38), which is interposed between the plug (20) and the gasket (30) along the central rotation axis (A). The pusher assembly (36, 38) comprises: at least one disk-shaped anti-rotational pusher (36), which is provided with at least one first projection (42A), having a first predefined thickness (C1) and comprising a pusher surface (40), and with at least one second projection (42B), opposite the pusher surface (40) and having a second predefined thickness (C2), wherein the second projection (42B) has the shape of any three- dimensional figure which is not axially symmetric around said central rotation axis (A); and at least one circumferentially threaded ring (38), having a predefined thickness (B) which is smaller than the second predefined thickness (C2) of the second projection (42B), wherein the ring (38) is provided with at least one through opening (48) having a shape that is geometrically similar to the shape of the second projection (42B). In the assembled configuration of the sealing device (10), the second projection (42B) is inserted into the opening (48) in a mating configuration, so that the second projection (42B) projects through the through opening (48) to adhere to the base surface (28), whereas the pusher surface (40) adheres to the contact surface (34) of the gasket (30), so as to push the gasket (30) in its sealing position into the bore (12).
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公开(公告)号：WO2021178336A1
公开(公告)日：2021-09-10
申请号：PCT/US2021/020358
申请日：2021-03-01
Applicant: SEABOARD INTERNATIONAL, INC.
Inventor： MANN, Michael L.
Abstract: A metallic seal has an annular body having a first center axis perpendicular to a second center axis, where the annular seal body having an upper portion defined along the second center axis and a lower portion defined along the second center axis, and the upper and lower seal portions being bifurcated by the first center axis. The upper and lower portions of the metallic annular seal have different sealing profiles but the same envelope dimensions.
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公开(公告)号：WO2021154233A1
公开(公告)日：2021-08-05
申请号：PCT/US2020/015582
申请日：2020-01-29
Applicant: QUICK FITTING, INC.
Inventor： CROMPTON, David B. , DIAS, Libardo Ochoa , BOUCHARD, Herbert J.
IPC: F16L19/00 , F16L19/08 , F16L37/00 , F16L37/084 , F16L37/091
Abstract: A push-to-connect electrical conduit fitting and assembly facilitates the connection of multiple types of metallic conduit regardless of connection type and finish. In various embodiments, an axially internal portion of the fitting has an interior surface that tapers from a narrower radius to a wider radius as it extends axially outwardly from a 5 tube stop element. A packing arrangement including a sealing member, fastening ring and release pusher are maintained within axially intermediate and/or outer portions of the fitting to facilitate retention of inserted conduits.
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公开(公告)号：WO2020183480A1
公开(公告)日：2020-09-17
申请号：PCT/IL2020/050306
申请日：2020-03-15
Applicant: MODGAL METAL (99) LTD.
Inventor： ARTSIELY, Eyal , BAHALUL, Yoel , BEN HARUSH, Meir , LUBOMIRSKI, Genia , KREIMERMAN, Gregori
Abstract: A pipe coupling assembly (200) for use with a seal (16) for sealing end portions of pipe elements (34), including: first and second coupling segments (10), each including a curved portion (12) having an inner surface (14) shaped to define an annular channel and shaped and sized to receive the seal therein. A fastening lug member (18) extends from the curved portion, the fastening lugs of the first and second coupling segments at least partially overlap when the fastening lug members are drawn towards each other. At least one restrainer (30) extending from an end (58) of the fastening lug member and in continuation with the inner surface of the curved portion of at least one of the coupling segments, inhibits trapping of the seal between the fastening lug members when the fastening lug members are drawn toward each other. Other embodiments are also described.
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Patent Agency Ranking
公开(公告)号：WO2020035506A1
公开(公告)日：2020-02-20
申请号：PCT/EP2019/071751
申请日：2019-08-13
Applicant: WEMA SYSTEM AS
Inventor： ELIASSEN, Bengt , FIEDLER, Jindrich , CHEBBI, Girish
Abstract: Line adapter and line assembly A line adapter (1) for use, for example, in a diesel exhaust fluid sensor or a filter for such a sensor, including a pipe section (2) with a radially protruding shoulder (4), where the shoulder (4) includes a planar butting surface (6) perpendicular to an axial direction (A) for a sealing ring (44). The invention further relates to a line assembly (30), in particular for a diesel exhaust fluid sensor or its filter.
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公开(公告)号：WO2020034384A1
公开(公告)日：2020-02-20
申请号：PCT/CN2018/110942
申请日：2018-10-19
Applicant: 谢丽霞
Inventor： 徐崇希
Abstract: 一种异形焊接管道气密性检测用接头，其包括：连接气管的进气管（1），进气管（1）与变径连接轴（2）的大直径端密封连接，变径连接轴（2）内设置有与进气管（1）相通的通气孔（21），变径连接轴（2）的大直径端螺纹连接有压紧环（3），小直径端螺纹连接有限位管（4），压紧环（3）上设置有钢环（7），钢环（7）以及限位管（4）之间的变径连接轴（2）上套接有密封圈（5）和钢圈（6）；使用该接头时，将变径连接轴（2）的上端插接在异形焊接管道内，使得密封圈（5）与异形焊接管道的内壁相接触，接着旋转压紧环（3）向上移动，通过钢环（7）压缩密封圈（5）以及钢圈（6），使得密封圈（5）出现挤压变形，从而使接头与异形焊接管道密封连接，避免了原有的较为复杂的焊接连接操作，有效地实现了对异形焊接管道的无损检测。
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公开(公告)号：WO2019147223A1
公开(公告)日：2019-08-01
申请号：PCT/US2018/014947
申请日：2018-01-24
Applicant: SARTORIUS STEDIM NORTH AMERICA INC.
Inventor： ZUMBRUM, Michael A. , PERDUE, Kevin , SANCHEZ, Marc
Abstract: A fluid transfer assembly is described that includes a fitting comprising a lumen having an opening, and at least one barb, the at least one barb extending circumferentially around the lumen proximate to the opening. The assembly also includes a flexible conduit, a deformable sleeve, and an elastomeric liner disposed between the sleeve and the conduit. The fitting extends at least partially into the conduit such that the conduit extends over the at least one barb. The elastomeric liner applies substantially 360 degree radial pressure to the conduit such that the conduit is sealingly compressed around the at least one barb of the fitting. The assembly is fluid tight up to a burst pressure of the conduit.
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公开(公告)号：WO2019067333A1
公开(公告)日：2019-04-04
申请号：PCT/US2018/052337
申请日：2018-09-24
Applicant: QUICK FITTING, INC.
Inventor： CROMPTON, David B. , DIAS, Libardo Ochoa , BOUCHARD, Herbert J.
IPC: F16L19/00 , F16L37/00 , F16L37/084 , H02G3/06
Abstract: A push-to-connect fitting assembly, device and method allows for continual contact of inserted tubing with a main body member so as to maintain conductivity for electrical applications and a tight, rotation-restricting seal. In various embodiments, an axially internal portion of the device has an interior surface that tapers from a narrower radius to a wider radius as it extends outwardly from a tube stop element to an outer rim.
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公开(公告)号：WO2019011661A1
公开(公告)日：2019-01-17
申请号：PCT/EP2018/067398
申请日：2018-06-28
Inventor： LÜERS, Gregor
Abstract: Die Erfindung betrifftein Rohr, insbesondere Kunststoffrohr für Abwasserleitungen, das wenigstens ein Muffenende aufweist, welches mit einer Ringsicke(4)und einem Muffenhals (3) versehen ist und ein erstes Rohr(1)bildet, in dessen Muffenende das Spitzende eines zweiten Rohres oder Formteils (13) einsteckbar und daraus wieder entfernbar ist, und bei der eine elastische Ringdichtung (6) in die Ringsicke (4) eingesetzt ist. Erfindungsgemäß ist der Muffenhals (3) des Rohres mit einem Schraubgewinde(9)versehen, auf das ein Schraubring (8) aufschraubbar ist, der einen inneren Ringteil(10)und einen äußeren Ringteil (11) enthält, zwischen denen ein Ringspalt ausgebildet ist, und die Ringteile (10, 11) über einen von der Ringsicke (4) abgewandten Ringboden (12) verbunden sind, wobei die Vorderkante(14)des inneren Ringteils (10) beim Aufschrauben des Schraubrings (8) auf das Schraubgewinde (9) diein die Ringsicke (4) eingelegte Ringdichtung(6)zusammendrückt und das Spitzende des zweiten Rohresoder Formteils (13) im ersten Rohr (1) arretiert.
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