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Patent Agency Ranking
公开(公告)号：US12055222B2
公开(公告)日：2024-08-06
申请号：US17956043
申请日：2022-09-29
Applicant: John Crane Inc.
Inventor： Darin Merrill Rasmussen , Tom Steigerwald , Syed Niamathullah , Dan Kozlowski , James R. Wasser , Michael G. Kalodimos
CPC classification number: F16J15/363 , F16J15/348 , F01D1/00 , F16J15/002 , F16J15/32 , F16J15/38
Abstract: A non-collapsible flexible sealing membrane (or bellows) for incorporation in a mechanical seal assembly and use in rotary shaft equipment. The sealing membrane includes a substantially radially outward extending first flange portion, which can be urged into an axially shiftable ring by a biasing mechanism. The sealing membrane further includes a substantially axially outboard extending second coaxial portion, substantially radially inward of the balance diameter of the seal. The horizontal portion is advantageously held fixed to a stub sleeve by an annular band. The angle between the vertical portion and the horizontal portion of sealing membrane enables directional control of the forces acting on stub sleeve and primary ring.
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2.发明申请公开(公告)号：US20180017161A1
公开(公告)日：2018-01-18
申请号：US15648350
申请日：2017-07-12
Applicant: John Crane Inc.
Inventor： Darin Rasmussen , Tom Steigerwald , Syed Niamathullah , Dan Kozlowski
CPC classification number: F16J15/002 , F16J3/041 , F16J15/32 , F16J15/36
Abstract: A non-collapsible flexible sealing membrane (or bellows) for incorporation in a mechanical seal assembly and use in rotary shaft equipment. The sealing membrane includes a substantially radially outward extending first flange portion, which can be urged into an axially shiftable ring by a biasing mechanism. The sealing membrane further includes a substantially axially outboard extending second coaxial portion, substantially radially inward of the balance diameter of the seal. The horizontal portion is advantageously held fixed to a stub sleeve by an annular band. The angle between the vertical portion and the horizontal portion of sealing membrane enables directional control of the forces acting on stub sleeve and primary ring.
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公开(公告)号：US20230028905A1
公开(公告)日：2023-01-26
申请号：US17956043
申请日：2022-09-29
Applicant: John Crane Inc.
Inventor： Darin Merrill Rasmussen , Tom Steigerwald , Syed Niamathullah , Dan Kozlowski , James R. Wasser , Michael G. Kalodimos
Abstract: A non-collapsible flexible sealing membrane (or bellows) for incorporation in a mechanical seal assembly and use in rotary shaft equipment. The sealing membrane includes a substantially radially outward extending first flange portion, which can be urged into an axially shiftable ring by a biasing mechanism. The sealing membrane further includes a substantially axially outboard extending second coaxial portion, substantially radially inward of the balance diameter of the seal. The horizontal portion is advantageously held fixed to a stub sleeve by an annular band. The angle between the vertical portion and the horizontal portion of sealing membrane enables directional control of the forces acting on stub sleeve and primary ring.
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公开(公告)号：US11473680B2
公开(公告)日：2022-10-18
申请号：US16842004
申请日：2020-04-07
Applicant: John Crane Inc.
Inventor： Darin Merrill Rasmussen , Tom Steigerwald , Syed Niamathullah , Dan Kozlowski , James R. Wasser , Michael G. Kalodimos
Abstract: A non-collapsible flexible sealing membrane (or bellows) for incorporation in a mechanical seal assembly and use in rotary shaft equipment. The sealing membrane includes a substantially radially outward extending first flange portion, which can be urged into an axially shiftable ring by a biasing mechanism. The sealing membrane further includes a substantially axially outboard extending second coaxial portion, substantially radially inward of the balance diameter of the seal. The horizontal portion is advantageously held fixed to a stub sleeve by an annular band. The angle between the vertical portion and the horizontal portion of sealing membrane enables directional control of the forces acting on stub sleeve and primary ring.
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5.发明申请公开(公告)号：US20200232562A1
公开(公告)日：2020-07-23
申请号：US16842004
申请日：2020-04-07
Applicant: John Crane Inc.
Inventor： Darin Merrill Rasmussen , Tom Steigerwald , Syed Niamathullah , Dan Kozlowski , James R. Wasser , Michael G. Kalodimos
Abstract: A non-collapsible flexible sealing membrane (or bellows) for incorporation in a mechanical seal assembly and use in rotary shaft equipment. The sealing membrane includes a substantially radially outward extending first flange portion, which can be urged into an axially shiftable ring by a biasing mechanism. The sealing membrane further includes a substantially axially outboard extending second coaxial portion, substantially radially inward of the balance diameter of the seal. The horizontal portion is advantageously held fixed to a stub sleeve by an annular band. The angle between the vertical portion and the horizontal portion of sealing membrane enables directional control of the forces acting on stub sleeve and primary ring.
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