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    • 21. 发明申请
    • Pipe seal
    • 管密封
    • US20050073113A1
    • 2005-04-07
    • US10677769
    • 2003-10-01
    • Ronald BrochuJames Burnes
    • Ronald BrochuJames Burnes
    • F16L5/02
    • F16L5/02
    • A molded plastic seal assembly, for use with a leaching or stormwater system component, comprises at least two embossed, preferentially eccentric, circles. Pulling on a tab tears out the interior portion of the seal, to create a hole which accommodates a first pipe diameter. A remaining crescent portion surrounding the hole has a multiplicity of perforations or other means for thinning. Thus, second larger diameter pipe pushed into said hole, deforms the crescent inwardly, so the hole diameter is increased, sufficient to fit and form a seal with the second pipe outside diameter. A seal assembly article made of polypropylene has a very thin wall at the bottom of the tear-out groove. Part of the injection mold is moved during molding, to enable filling of the mold in vicinity of the thin wall.
    • 用于浸出或雨水系统部件的模制塑料密封组件包括至少两个压花,优选偏心的圆形。 拉出卡舌撕开密封件的内部,以形成容纳第一管直径的孔。 围绕孔的剩余新月部分具有多个穿孔或用于变薄的其它装置。 因此,推入所述孔的第二较大直径的管子使新月向内变形,因此孔直径增加,足以与第二管外径配合并形成密封。 由聚丙烯制成的密封组合件在撕裂槽的底部具有非常薄的壁。 注射模具的一部分在模制期间移动,以使得能够在薄壁附近填充模具。