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    • 4. 发明授权
    • Polybutylene tube coupling and method for making it
    • 聚丁烯管接头及其制作方法
    • US4664423A
    • 1987-05-12
    • US621170
    • 1984-06-15
    • William W. Rowley
    • William W. Rowley
    • B29C37/00B29C65/56B29C65/66F16L33/00B29C43/00B29C65/00
    • B29C65/66B29C37/0082B29C65/565B29C66/1122B29C66/5221B29C66/71F16L33/00B29K2009/00Y10T29/49865Y10T29/49906Y10T29/49913Y10T29/49927Y10T74/2045Y10T74/20462
    • A polybutylene tubing coupling and method of making that coupling utilizes a male tubular connector element having the same inside diameter as the major extent of the tubing. A coupling element is provided with stop shoulder at one end and a series of annular radially projecting barbs on its outside diameter which are preferably undercut in the direction of the stop shoulder or tubing end. An end of the tube is treated preferably by heating to enable the material to expand and the tubing end is inserted on or slipped over the male element against the stop shoulder. In such position the treated tubing end is mechanically compressed between two semi-circular dies to cause the material of the treated tubing end to flow around the barbs. Thereafter a metal crimp is placed around the tubing end between the stop shoulder and the next adjacent barb, or over the top of one or all barbs. The tubing connection thus formed is then permitted to cool at ambient temperature for approximately 7 days. During such period approximately 1.8% shrinkage will occur in the polybutylene material forming a tight secure tubing connection.
    • 聚丁烯管联接器和制造该联接器的方法利用具有与管道的主要程度相同的内径的阳管式连接器元件。 联接元件在一端设置有止动肩部,并且在其外径上具有一系列环形径向突出的倒钩,其优选地在止动肩部或管道端部的方向上被切削。 优选地通过加热处理管的端部以使材料膨胀并且将管端部插入或滑过阳元件抵靠止动肩部。 在这样的位置,经处理的管端在两个半圆形的模具之间被机械地压缩,以使被处理的管道端部的材料围绕倒钩流动。 此后,在止动肩部和下一个相邻倒钩之间或者在一个或所有倒钩的顶部上的管道端部周围放置金属卷边。 然后将如此形成的管道连接件在环境温度下冷却约7天。 在这样的时间段内,聚丁烯材料中会发生大约1.8%的收缩,从而形成紧密的管道连接。
    • 7. 发明授权
    • Bendable polymer-lined water heater connector
    • 弯曲聚合物衬里热水器连接器
    • US06848719B2
    • 2005-02-01
    • US09682467
    • 2001-09-06
    • William W. Rowley
    • William W. Rowley
    • B29C35/04B29C57/04F16L9/147F16L35/00
    • F16L9/147B29C57/04B29C2035/046
    • This invention relates to a connector having an inner polymeric liner with either two opposed flared ends or one flared end and an opposed sealing end, a bendable outer metallic sleeve having two opposed flared ends of essentially similar geometry to either the polymeric liner flared ends or one flared end and an opposed sealing end shelf, and two outwardly facing threaded nuts, each of said nuts having a shelf which engages the opposed flared ends of said metallic sleeve. The connector will often have a ribbed segment between the ends and washers for sealing engagement with the interior wall end portion of the liner at the flared end.
    • 本发明涉及一种具有内聚合物衬里的连接器,其具有两个相对的扩口端或一个扩口端和相对的密封端,可弯曲的外金属套管具有两个相对的扩口端,其基本相似的几何形状与聚合物衬里的端部或一个 扩口端和相对的密封端架,以及两个面向外螺纹的螺母,每个所述螺母具有与所述金属套筒的相对的扩口端接合的搁板。 连接器通常在端部和垫圈之间具有肋状部分,用于与喇叭形端部的衬套的内壁端部部分密封接合。
    • 10. 发明授权
    • Extreme angle junction overmolding
    • 极角接头包覆成型
    • US6082780A
    • 2000-07-04
    • US018781
    • 1998-02-04
    • William W. RowleyRichard T. Seman
    • William W. RowleyRichard T. Seman
    • B29C45/14B29C70/76F16L47/32F16L41/00
    • B29C45/14336B29C70/766F16L47/32
    • The process of this invention will involve overmolding a thermoplastic or rubbery polymer composition over a thermoplastic hollow tube and a core insert to form a hollow overmolded coupler after the removal of the core insert, the tube entering the coupler at an angle which is less than 90.degree. so as to minimize any freezing of transported water which may reside in the coupler. The combination of the above polymers must satisfy at least two simultaneous conditions. First, the inserted plastic tube must not soften and begin melt flow to the point where it looses structural integrity during the molding processing and second, the overmolded polymer must be capable of forming an essentially leak-proof interface between the coupler and the plastic tube, preferably through either a chemical and/or physical bond between the plastic tube and the overmolded plastic. In one aspect of the invention, the composition of the overmolded polymer will be such that it will be capable of at least some melt fusion with the composition of the plastic tube, thereby maximizing the leak-proof characteristics of the interface between the plastic tube and overmolded plastic, e.g., by having at least a component of the polymer composition of the plastic tube and that of the overmolded polymer being the same or at least sufficiently similar or compatible so as to permit the melt fusion or blending or alloying to occur at least in the interfacial region between the exterior of the plastic tube and the interior region of the overmolded polymer.
    • 本发明的方法将包括将热塑性或橡胶状聚合物组合物包覆在热塑性中空管和芯插入件上,以在移除芯插入件之后形成中空包覆模制耦合器,该管以小于90°的角度进入耦合器 DEG,以最小化可能驻留在耦合器中的运输水的任何冻结。 上述聚合物的组合必须满足至少两个同时的条件。 首先,插入的塑料管不能软化并开始熔融流动到其在模制过程中失去结构完整性的点,其次,包覆成型的聚合物必须能够在耦合器和塑料管之间形成基本上防漏的界面, 优选地通过塑料管和包覆成型塑料之间的化学和/或物理结合。 在本发明的一个方面,包覆成型的聚合物的组成将使得其能够与塑料管的组合物至少熔融熔融,从而最大化塑料管与塑料管之间的界面的防漏特性 包覆成型的塑料,例如通过至少具有塑料管的聚合物组合物的组分和包覆成型的聚合物的组分相同或至少足够相似或相容,以便使熔体熔融或共混或合金化至少发生 在塑料管的外部和包覆成型的聚合物的内部区域之间的界面区域中。