公开(公告)号：US5318172A

公开(公告)日：1994-06-07

申请号：US829962

申请日：1992-02-03

申请人： Garry R. Kenny ,  David R. Morgan ,  Abdul R. Al-Ali

发明人： Garry R. Kenny ,  David R. Morgan ,  Abdul R. Al-Ali

IPC分类号： B07C5/34 ,  B07C5/00

CPC分类号： B07C5/365 ,  B07C5/3416

摘要： Electromagnetic radiation is projected through various types of plastics materials such as plastic containers. The readings from the electromagnetic radiation transmitters are received by a sensor array. Plural readings are taken from each plastic bottle as it passes under the sensor. The measurements from the sensor array output are then fed into a computer. The materials are then separated into three classes. The first class contains polyvinyl chloride (PVC) and polyethylene teraphalate (PET) containers. The second class contains polypropylene (PP) and natural (primarily milk containers) high density polythylene (HDPE) containers. The third class contains opaque materials such as rigid, mixed color high density polythylene (HDPE) containers, opaque polyvinyl chloride (PVC) containers, opaque polystyrene (PS) containers, and opaque polypropylene (PP) containers. The groups of plastics contained in each of the classes are then separated out using the same or other detection means.

摘要翻译： 电磁辐射通过各种类型的塑料材料投射，例如塑料容器。 来自电磁辐射发射器的读数由传感器阵列接收。 当每个塑料瓶通过传感器时，都会读取多个读数。 然后将传感器阵列输出的测量值输入计算机。 然后将材料分成三类。 第一类包含聚氯乙烯（PVC）和聚乙烯过硫酸酯（PET）容器。 第二类包含聚丙烯（PP）和天然（主要是牛奶容器）的高密度聚乙烯（HDPE）容器。 第三类包含不透明材料，例如刚性，混色高密度聚乙烯（HDPE）容器，不透明聚氯乙烯（PVC）容器，不透明聚苯乙烯（PS）容器和不透明聚丙烯（PP）容器）。 然后，使用相同或其它检测方法将包含在每个类别中的塑料组分离出来。