公开(公告)号：US5718852A

公开(公告)日：1998-02-17

申请号：US241275

申请日：1994-05-10

申请人： G. Edward Campbell ,  Casper W. Chiang ,  Victor M. Castillo ,  Frederick C. Wolters ,  Jerry Baker ,  John D. Crossan ,  Jeff E. Gallaher ,  Jay A. Rouse ,  Ronald E. Heiskell

发明人： G. Edward Campbell ,  Casper W. Chiang ,  Victor M. Castillo ,  Frederick C. Wolters ,  Jerry Baker ,  John D. Crossan ,  Jeff E. Gallaher ,  Jay A. Rouse ,  Ronald E. Heiskell

IPC分类号： B29C49/50 ,  B29C47/22 ,  B29C47/92 ,  B29C47/96 ,  B29C49/04 ,  B29C49/42 ,  B29C49/78

CPC分类号： B29C49/78 ,  B29C47/92 ,  B29C49/42 ,  B29C2947/92514 ,  B29C2947/92561 ,  B29C2947/9259 ,  B29C2947/92885 ,  B29C2947/92904 ,  B29C49/04

摘要： The method for controlling a blowmolding machine during a process of making an object is disclosed. The machine includes a die head, a mandrel and an extruder that rotates and drives a plastic material between the mandrel and the die head to form a plurality of elongated parisons. The method comprises setting the distance between the die head and the mandrel and the rotation speed of the extruder to accomplish predetermined target values of the weight of the object and parison velocity. Plastic material is fed to the machine and the extruder is operated to form the parisons. A parameter related to the viscosity or melt index of the plastic material in the extruder is detected and the material distribution function and the speed of the extruder are adjusted in response to the parameter so that object weight and velocity of the parisons made are maintained substantially at target values.

摘要翻译： 公开了在制造物体的过程中控制吹塑机的方法。 机器包括模头，心轴和挤出机，其在心轴和模头之间旋转并驱动塑料材料以形成多个细长型坯。 该方法包括设置模头和心轴之间的距离以及挤出机的转速来实现物体和型坯速度的预定目标值。 将塑料材料供给到机器中，并且挤出机被操作以形成型坯。 检测与挤出机中的塑料材料的粘度或熔体指数相关的参数，并根据参数调节挤出机的材料分布功能和速度，使得所制造的型坯的物体重量和速度基本保持在 目标值。

公开(公告)号：US5579936A

公开(公告)日：1996-12-03

申请号：US332208

申请日：1994-10-31

申请人： Stephen M. Costa ,  William P. Sibert ,  G. Edward Campbell

发明人： Stephen M. Costa ,  William P. Sibert ,  G. Edward Campbell

IPC分类号： B65D51/16 ,  B65D53/00

CPC分类号： B65D51/1622

摘要： A dual cap lining for bi-directional venting comprising a substantially shaped, laminated or secured, fluid-impermeable, gas-permeable material bottom layer congruent with a container opening, and having an extruded and cast polyethylene material top layer which is provided with channels on the lower surface of the top layer, and the material of construction of the laminated bottom layer is gas-permeable such that the dual lining allows bi-directional gas flow therethrough, for gases which have built-up in the interior of the connected container to safely escape by venting from the interior of the container to the external ambient atmosphere through openings existing between the spiral screw threads of the cap closure and threads of the container neck, and the reverse venting to equilibrate for relatively increased external pressure, without passage of solid or liquid material from the interior of the container through the lining to the closure and to the exterior of the container.

摘要翻译： 一种用于双向排气的双盖衬里，包括与容器开口一致的基本上成形的，层压的或固定的不透流体的气体可渗透的材料底层，并且具有挤出和浇铸的聚乙烯材料顶层，其上设置有通道 顶层的下表面和层压底层的构造材料是透气的，使得双层衬里允许双向气体流过其中，用于在连接的容器的内部积聚的气体 通过存在于帽盖的螺旋螺纹和容器颈部的螺纹之间的开口，通过从容器内部排放到外部环境大气而安全地逃逸，并且反向排气以平衡相对增加的外部压力，而不通过固体 或液体材料从容器的内部通过衬里到封闭件和容器的外部。