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1. 发明授权

US12085109B2 Single point actuation low-profile lock ring for a mechanical seal 有权
公开(公告)号：US12085109B2
公开(公告)日：2024-09-10
申请号：US17340545
申请日：2021-06-07
申请人： A.W. CHESTERTON COMPANY
发明人： Joseph Usenia , Alan Van Epps , Robert James Powers
IPC分类号： F16J15/34 , F16B39/08 , F16B39/12 , F16B2/06
CPC分类号： F16B39/08 , F16B39/12 , F16B2/065
摘要： A mechanical seal that employs a lock ring assembly having associated therewith a locking mechanism. The locking mechanism can include a nut element, such as a barrel nut, that allows an associated bolt element to adjust a tightening load and position while clamping occurs of the components of the mechanical seal. This adjustment flexibility removes or reduces unwanted bending stresses in the bolt element, thus allowing for more torque to translate directly to the lock ring. The barrel nut allows for more material to remain in the lock ring, thus providing for additional overall strength relative to a traditional locking element. The lock ring also includes a plurality of flex regions in the form of notches that allow the lock ring to flex when the main body is tightened about the shaft.

2. 发明授权

US12060803B2 Split polymer labyrinth seal assembly 有权
公开(公告)号：US12060803B2
公开(公告)日：2024-08-13
申请号：US17868615
申请日：2022-07-19
申请人： A.W. Chesterton Company
发明人： Michael P. Grimanis , Joseph K. Kaleshian
IPC分类号： F01D25/18 , F01D11/00 , F01D11/02 , F16J15/447
CPC分类号： F01D25/183 , F01D11/003 , F01D11/02 , F16J15/447 , F05D2240/55
摘要： A split labyrinth seal assembly having split stationary and rotary sealing elements, and a split clamping mechanism. The clamping mechanism is configured to secure the rotary element to a rotating shaft. The rotary element can also include an integrally formed valve element that moves between a contacting and a non-contacting position in response to rotation of the shaft. The rotary element and the clamping mechanism can have surface features associated therewith to promote nesting between the components.

3. 发明授权

US11834583B2 High temperature protective coating 有权
公开(公告)号：US11834583B2
公开(公告)日：2023-12-05
申请号：US15931140
申请日：2020-05-13
申请人： A.W. CHESTERTON COMPANY
发明人： Muni Ramakrishnan
IPC分类号： C09D163/04 , C09D163/00 , C08F220/10 , C08F230/08 , C08G59/24 , C08G59/30 , C08G59/40 , C08K3/22 , C08K3/26 , C08K3/36 , C08K5/17 , C09D5/18 , B32B15/092 , B32B27/18 , B32B27/26 , B32B27/38
CPC分类号： C09D163/04 , C08F220/10 , C08F230/08 , C08G59/245 , C08G59/306 , C08G59/4014 , C08K3/22 , C08K3/26 , C08K3/36 , C08K5/17 , C09D5/18 , C08K2003/2227 , C08K2003/2241 , C08K2003/265
摘要： A protective coating, comprising a binder component mixture having a reactive mixture portion and a filler mixture portion, wherein the reactive mixture portion includes an epoxy resin part and an epoxy silane part, wherein the epoxy silane part is present in an amount of about 10 wt % of the reactive mixture portion and about 40 wt % of the reactive mixture portion; and a curing component having one or more amine curing compounds, wherein the amine curing compound of the curing component comprises an unmodified diamino cyclohexane (DACH) that is present in an amount between about 70 wt % and about 100 wt % of the curing component.

4. 发明授权

US11608898B2 Externally energized secondary seals in split mechanical seals 有权
公开(公告)号：US11608898B2
公开(公告)日：2023-03-21
申请号：US17339397
申请日：2021-06-04
申请人： A.W. CHESTERTON COMPANY
发明人： Henri Vincent Azibert , Robert James Powers
IPC分类号： F16J15/34
摘要： A mechanical seal that employs an axially movable spring holder plate that engages a sealing element, such as an O-ring, associated with a stationary seal ring. In turn, the stationary seal ring can have a sealing face that engages with a sealing face of a rotary seal ring. The rotary seal ring can also have a sealing element, such as an O-ring, associated therewith. The O-rings are initially disposed in an unloaded position where they are not radially compressed and hence the ends do not expand circumferentially past the end faces of the holder or gland segments. The spring holder plate can be moved axially by tightening selected bolts associated therewith. When moved axially, the spring holder plate moves the stationary seal ring and the O-ring associated therewith in an axially inboard direction, thus placing the O-rings in a loaded position, where the O-rings are radially compressed.

5. 发明授权

US10352457B2 Self aligning split mechanical seal employing a rotary seal ring having non-flat end faces 有权
公开(公告)号：US10352457B2
公开(公告)日：2019-07-16
申请号：US14100806
申请日：2013-12-09
申请人： A.W. CHESTERTON COMPANY
发明人： Edwin Cid
IPC分类号： F16J15/34 , F16J15/38
摘要： A split mechanical seal for mounting to a housing containing a rotating shaft, including a gland assembly, a holder assembly having an inner surface and an opposed outer surface, and a rotary seal ring that is sized and configured for seating within the space defined by the holder assembly. A detent groove is formed in the inner surface of the holder assembly for at least partially seating a portion of a sealing element, and another detent groove is formed in an outer surface of the rotary seal ring for at least partially seating another portion of the sealing element. The holder detent groove and the seal ring detent groove in combination are configured to seat and to retain the sealing element.

6. 发明申请

US20040227298A1 Balanced mechanical seal assembly 有权
标题翻译：平衡机械密封组件
公开(公告)号：US20040227298A1
公开(公告)日：2004-11-18
申请号：US10791515
申请日：2004-03-01
申请人： A.W. CHESTERTON COMPANY
发明人： Henri V. Azibert
IPC分类号： F16J015/34
CPC分类号： F16J15/3404 , F16J15/3448 , F16J15/3472 , F16J15/3484 , F16J15/38 , F16J15/40
摘要： A mechanical seal having a single rotatable seal ring having a pair of concentric seal faces to form a radially inner seal face and a radially outer seal face. The mechanical seal also includes first and second stationary seal rings, each having a seal face, where the seal face of the first stationary seal ring contacts the radially outer seal face of the rotatable seal ring and the seal face of the second stationary seal ring contacts the radially inner seal face of the rotatable seal ring. The seal also includes a sleeve adapted to be mounted about the rotating shaft and rotatably coupled thereto and to the rotatable seal ring, said sleeve having a flange portion that is configured for housing at least a portion of the rotatable seal ring, and a gland for housing at least partially the single rotary seal ring and the first and second stationary seal rings. Under positive and negative pressure conditions, the combined area of the seal piston areas are substantially identical to provide a balanced seal arrangement without requiring the use of axially movable components.
摘要翻译：一种具有单个可旋转密封环的机械密封件，其具有一对同心密封面，以形成径向内部密封面和径向外部密封面。机械密封还包括第一和第二固定密封环，每个具有密封面，其中第一固定密封环的密封面接触可旋转密封环的径向外部密封面，并且第二固定密封环接触件的密封面可旋转密封环的径向内部密封面。所述密封件还包括适于围绕所述旋转轴安装并可旋转地联接到所述可旋转密封环的套筒，所述套筒具有凸缘部分，所述凸缘部分构造成用于容纳所述可旋转密封环的至少一部分，以及用于至少部分地容纳单个旋转密封环和第一和第二固定密封环。在正压和负压条件下，密封活塞区域的组合面积基本上相同，以提供平衡的密封装置，而不需要使用可轴向移动的部件。

7. 发明授权

US12000489B2 Elastomer spring type mechanical seal 有权
公开(公告)号：US12000489B2
公开(公告)日：2024-06-04
申请号：US18111373
申请日：2023-02-17
申请人： A.W. Chesterton Company
发明人： Henri Vincent Azibert , Joseph K. Kaleshian
IPC分类号： F16J15/36
CPC分类号： F16J15/36
摘要： A mechanical seal assembly having a gland assembly, a rotary seal ring, a stationary seal ring, a sleeve assembly having a flange portion for mounting the rotary seal ring, a cover sealing element for seating over the flange portion and contacting a portion of the rotary seal ring, and an energizer sealing element axially spaced from the cover sealing element for sealing a portion of the stationary seal ring and the gland assembly and for providing an axial biasing force to the stationary seal ring.

8. 发明公开

US20240167569A1 MECHANICAL SEAL MATING RING WITH DIRECT THERMAL CONTROL 审中-公开
公开(公告)号：US20240167569A1
公开(公告)日：2024-05-23
申请号：US18514566
申请日：2023-11-20
申请人： A.W. CHESTERTON COMPANY
发明人： Joseph K. KALESHIAN , Henri Vincent AZIBERT , Robert James POWERS
IPC分类号： F16J15/34
CPC分类号： F16J15/3448
摘要： A mechanical seal assembly having a gland element configured to mount to stationary equipment, a rotary seal ring for coupling to and rotating with a shaft, a stationary seal ring configured to remain stationary relative to the shaft where the stationary seal ring has a main body having an outer surface having a heat transfer channel formed therein that is sized and configured for circulating a heat transfer fluid, and a holder element for coupling the rotary seal ring to the shaft and for rotating with the shaft. The heat transfer channel can be a low pressure heat transfer channel.

9. 发明授权

US11441684B2 Sealing cover element in a mechanical seal 有权
公开(公告)号：US11441684B2
公开(公告)日：2022-09-13
申请号：US16844353
申请日：2020-04-09
申请人： A.W. CHESTERTON COMPANY
发明人： Josef Fichtner , Pierre Aouni Alfons Al-Darra
IPC分类号： F16J15/3284
摘要： A mechanical seal that includes a holder assembly having a fastener-receiving aperture formed therein and having a pair of grooves disposed on either side of the fastener-receiving aperture. A sealing cover element is disposed over the fastener-receiving aperture and has opposed leg portions that seat within the groove.

10. 发明申请

US20200224770A1 MULTIPLE COMPONENT SEAL ASSEMBLY 审中-公开
公开(公告)号：US20200224770A1
公开(公告)日：2020-07-16
申请号：US16741402
申请日：2020-01-13
申请人： A.W. CHESTERTON COMPANY
发明人： Pierre Aouni Alfons AL-DARRA
IPC分类号： F16J15/34 , F16J15/3276
摘要： A sealing assembly that includes first, second and third sealing elements, where the first sealing element is disposed between the second and third sealing elements. The sealing elements are shaped in a complementary manner so that the sealing elements when assembled nest together. The sealing elements also have different hardness values associated therewith.

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