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公开(公告)号：US06328309B1
公开(公告)日：2001-12-11
申请号：US09449049
申请日：1999-11-24
IPC分类号： B29C4514
CPC分类号： F16L21/02 , B29C57/025 , Y10S425/218
摘要： An improved pipe belling process is shown which a gasket is installed on the outer working surface of a forming mandrel at one circumferential location. The heated socket end of a thermoplastic pipe is forced over the mandrel exterior and over the gasket causing the heated socket end of the pipe to flow over the gasket and form a retention groove for retaining the gasket before again contacting the working surface of the mandrel. The heated end of the pipe is cooled and retracted from the working surface of the mandrel. The gasket has a non-stick, anti-friction coating applied to portions of the exterior thereof.
摘要翻译： 示出了一种改进的管道开口过程，其中一个垫圈被安装在成形心轴的一个周向位置的外部工作表面上。 热塑性管的加热的插座端被迫超过心轴外部和垫圈上方，导致管的加热的插座端部流过衬垫，并形成保持槽，用于在再次接触心轴的工作表面之前保持衬垫。 管的加热端被冷却并从心轴的工作表面缩回。 垫圈具有施加到其外部部分的不粘的防摩擦涂层。
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12.发明授权Snap fit sealing gasket with precisely located internal retainer ring for square pipe grooves 有权快速接合密封垫圈，具有精确定位的内部保持环，用于方形管槽公开(公告)号：US07509724B2
公开(公告)日：2009-03-31
申请号：US11294139
申请日：2005-12-05
CPC分类号： F16L21/03 , F16L17/025 , F16L17/032 , Y10T29/4987 , Y10T29/49872 , Y10T29/49876
摘要： A pipe sealing gasket is shown which is designed to be received within a groove provided within the belled, socket end of a plastic pipe. The sealing gasket has a body formed of resilient material and has a retainer ring embedded therein which circumscribes the gasket body. The groove in the plastic pipe is preformed during the manufacture of the plastic pipe and the gasket is installed thereafter. The gasket nominal diameter exceeds the internal diameter of the belled pipe end. The retainer ring is placed within the body of the sealing gasket at a precisely determined location which most effectively retains the ring in position while withstanding the forces of the assembly of the pipe joint.
摘要翻译： 示出了管密封垫圈，其被设计成容纳在设置在塑料管的鼓形插座端部内的凹槽内。 密封衬垫具有由弹性材料形成的本体，并且具有嵌入其中的保持环，其围绕垫圈主体。 在塑料管的制造期间，塑料管中的槽被预先形成，此后安装垫圈。 垫圈公称直径超过鼓形管端的内径。 保持环在密封垫圈的主体内被放置在精确确定的位置处，其最有效地将环保持在适当位置，同时承受管接头的组件的力。
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公开(公告)号：US07310867B2
公开(公告)日：2007-12-25
申请号：US11220054
申请日：2005-09-06
IPC分类号： B23P11/00
CPC分类号： B25B27/0028 , F16L21/03 , Y10S277/939 , Y10S277/944 , Y10T29/49872 , Y10T29/49876 , Y10T29/53909 , Y10T29/54
摘要： A pipe sealing gasket is shown which is designed to be received within a groove provided within a belled, socket end of a plastic pipe. The groove in the plastic pipe is preformed during manufacture and the gasket is installed thereafter. The gasket nominal diameter exceeds the internal diameter of the belled pipe end. A special installation tool is used to pull the gasket from an initially deformed, elliptical shape to a normal cylindrical shape. The installation tool uses only one fluid cylinder for power and can be hand installed and operated.
摘要翻译： 示出了管密封垫圈，其被设计成容纳在设置在塑料管的鼓形插座端内的凹槽内。 塑料管中的凹槽在制造过程中预先形成，此后安装垫圈。 垫圈公称直径超过鼓形管端的内径。 使用特殊的安装工具将垫片从初始变形的椭圆形状拉到正常的圆柱形状。 安装工具只能使用一个液压缸供电，并可手动安装和操作。
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公开(公告)号：US06947443B1
公开(公告)日：2005-09-20
申请号：US09676967
申请日：2000-10-02
CPC分类号： F16L47/08 , B29C47/0019 , B29C47/003 , B29C47/02 , B29C53/585 , B29C53/66 , B29C65/02 , B29C66/1122 , B29C66/5221 , B29D23/003 , B29K2023/06 , B29C65/00
摘要： An improved pipe belling apparatus and method are shown in which a spiral strip of thermoplastic material is extruded and wrapped spirally about a mandrel and integral gasket. The heated material is allowed to cool and the connection thus formed is stripped from the mandrel. The gasket is retained within a groove which is simultaneously formed of the thermoplastic extrusion.
摘要翻译： 显示了一种改进的管道闭合装置和方法，其中将热塑性材料的螺旋带挤压并围绕心轴和整体垫圈螺旋缠绕。 允许加热的材料冷却，并且如此形成的连接从心轴剥离。 垫圈保持在同时由热塑性挤压成型的槽内。
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公开(公告)号：US6113159A
公开(公告)日：2000-09-05
申请号：US138227
申请日：1998-08-21
CPC分类号： F16L21/03 , Y10S285/91
摘要： A pipe sealing gasket is shown which is designed to be received within a groove provided within a socket end of a thermoplastic pipe. The gasket has a ring shaped body of an elastomeric material and includes a metal reinforcing band. The metal reinforcing band has an angular profile, when viewed in cross-section, with an apex which is embedded within the gasket body but lies in close proximity to an exterior surface of the gasket. The apex provides a reinforced contact point during belling operations but is isolated from surrounding liquids passing through a pipe joint.
摘要翻译： 示出了管密封垫圈，其被设计成容纳在设置在热塑管的插座端部内的凹槽内。 垫圈具有弹性体材料的环形体，并且包括金属加强带。 当从横截面看时，金属加强带具有嵌入在垫圈体内但位于垫圈外表面附近的顶点的角形轮廓。 顶点在起搏操作期间提供加强的接触点，但是与通过管接头的周围液体隔离。
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16.发明授权公开(公告)号：US07461848B2
公开(公告)日：2008-12-09
申请号：US11766849
申请日：2007-06-22
CPC分类号： B25B27/0028 , F16L21/03 , Y10S277/939 , Y10S277/944 , Y10T29/49872 , Y10T29/49876 , Y10T29/53909 , Y10T29/54
摘要： A pipe sealing gasket is shown which is designed to be received within a groove provided within a belled, socket end of a plastic pipe. The groove in the plastic pipe is preformed during manufacture and the gasket is installed thereafter. The gasket nominal diameter exceeds the internal diameter of the belled pipe end. A special installation tool is used to pull the gasket from an initially deformed, elliptical shape to a normal cylindrical shape. The installation tool uses only one fluid cylinder for power and can be hand installed and operated.
摘要翻译： 示出了管密封垫圈，其被设计成容纳在设置在塑料管的鼓形插座端内的凹槽内。 塑料管中的凹槽在制造过程中预先形成，此后安装垫圈。 垫圈公称直径超过鼓形管端的内径。 使用特殊的安装工具将垫片从初始变形的椭圆形状拉到正常的圆柱形状。 安装工具只能使用一个液压缸供电，并可手动安装和操作。
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17.发明授权Snap fit sealing gasket with precisely located internal retainer ring for triangular pipe grooves 有权紧凑型密封垫圈，精密定位三角形管槽内部保持环公开(公告)号：US07441319B2
公开(公告)日：2008-10-28
申请号：US11293969
申请日：2005-12-05
CPC分类号： F16L21/03 , Y10T29/4987 , Y10T29/49872 , Y10T29/49876
摘要： A pipe sealing gasket is shown which is designed to be received within a groove provided within the belled, socket end of a plastic pipe. The sealing gasket has a body formed of resilient material and has a retainer ring embedded therein which circumscribes the gasket body. The groove in the plastic pipe is preformed during the manufacture of the plastic pipe and the gasket is installed thereafter. The gasket nominal diameter exceeds the internal diameter of the belled pipe end. The retainer ring is placed within the body of the sealing gasket at a precisely determined location which most effectively retains the ring in position while withstanding the forces of the assembly of the pipe joint.
摘要翻译： 示出了管密封垫圈，其被设计成容纳在设置在塑料管的鼓形插座端部内的凹槽内。 密封衬垫具有由弹性材料形成的本体，并且具有嵌入其中的保持环，其围绕垫圈主体。 在塑料管的制造期间，塑料管中的槽被预先形成，此后安装垫圈。 垫圈公称直径超过鼓形管端的内径。 保持环在密封垫圈的主体内被放置在精确确定的位置处，其最有效地将环保持在适当位置，同时承受管接头的组件的力。
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公开(公告)号：US06299176B1
公开(公告)日：2001-10-09
申请号：US09261862
申请日：1999-03-03
IPC分类号： F16L1703
CPC分类号： F16L21/03
摘要： A pipe sealing gasket is shown which is designed to be received within a groove provided within a socket end of a thermoplastic pipe. The gasket includes a ring shaped body which, when viewed in cross-section includes a leading nose region and a radially inwardly slanting primary sealing surface which forms a lip seal for engaging a mating spigot end during insertion, the primary sealing surface being joined to a secondary sealing surface by an intermediate circumferential groove region, the secondary sealing surface comprising a planar circumferential region which terminates in an inside corner of the gasket, the inside corner being connected to an outermost wall region of the gasket by an exterior gasket surface, the outermost wall region of the gasket being connected to the nose region of the gasket by vertical step which joins a uniformly sloping external gasket surface.
摘要翻译： 示出了管密封垫圈，其被设计成容纳在设置在热塑管的插座端部内的凹槽内。 垫圈包括环形体，当从横截面观察时，其包括前鼻部区域和径向向内倾斜的主密封表面，该主密封表面形成用于在插入期间接合配合插口端部的唇形密封件，主密封面连接到 二次密封表面由中间的周向槽区域组成，该二次密封表面包括终止在该垫片内角的平面圆周区域，内部角部通过外部垫圈表面连接到垫圈的最外侧壁区域， 垫片的壁区域通过连接均匀倾斜的外部垫圈表面的垂直步骤连接到垫圈的鼻部区域。
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公开(公告)号：US5988695A
公开(公告)日：1999-11-23
申请号：US140253
申请日：1998-08-26
CPC分类号： F16L21/03 , Y10S285/91
摘要： A pipe sealing gasket is shown which is designed to be received within a groove provided within a socket end of a thermoplastic pipe. The gasket has a ring shaped body of an elastomeric material and includes a metal reinforcing ring. The elastomeric body includes a first portion of relatively low durometer rubber and a second portion of a relatively high durometer rubber. The regions of relative hardness and the placement of the reinforcing ring assist in retention of the gasket during the pipe belling process and in field installation.
摘要翻译： 示出了管密封垫圈，其被设计成容纳在设置在热塑管的插座端部内的凹槽内。 垫圈具有弹性体材料的环形体，并且包括金属加强环。 弹性体包括相对低硬度橡胶的第一部分和相对高硬度橡胶的第二部分。 相对硬度的区域和加强环的放置有助于在管道起振过程和现场安装期间保持垫圈。
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公开(公告)号：US08056334B2
公开(公告)日：2011-11-15
申请号：US12426017
申请日：2009-04-17
CPC分类号： B29C43/52 , B29C43/027 , B29C45/72 , B29C47/0893 , B29C47/8815 , B29C2045/7292 , B29K2021/00 , B29L2031/7096 , F02G1/044 , F02G2254/00 , Y02P70/26 , Y02P70/263
摘要： An energy recovery system for a pipe manufacturing process is shown. A compression or injection molding operation is used to form a sealing gasket which is used in the subsequent pipe manufacturing operation. A Stirling engine cycle is used to recover heat during the gasket manufacture. The Stirling engine is driven by waste heat from the mold members or other associated parts of the injection or compression molding apparatus. The recovered waste heat is used to subsequently heat the female pipe end which is being belled in the pipe manufacturing process.
摘要翻译： 示出了用于管道制造过程的能量回收系统。 使用压缩或注射成型操作来形成用于随后的管道制造操作中的密封垫圈。 使用斯特林发动机循环在垫圈制造过程中回收热量。 斯特林发动机由来自注塑或压缩成型设备的模具构件或其它相关部件的废热驱动。 回收的废热用于随后加热管道制造过程中正在被罩住的母管端。
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