发明授权
- 专利标题： Sortation method for transparent optically active articles
- 专利标题（中）： 透明光学活性制品的分选方法
-
申请号： US299550申请日： 1994-09-01
-
公开(公告)号： US5603413A公开(公告)日： 1997-02-18
- 发明人: Samuel T. Mitchum, Jr.
- 申请人： Samuel T. Mitchum, Jr.
- 申请人地址： SC Johnsonville
- 专利权人： Wellman, Inc.
- 当前专利权人： Wellman, Inc.
- 当前专利权人地址： SC Johnsonville
- 主分类号： B07C5/342
- IPC分类号： B07C5/342
摘要：
A method of and apparatus for sorting plastic items is disclosed. The method comprises the steps of transmitting polychromatic light from a source through each individual item; detecting the quantity of light of a first color passing through each individual item with a detector opposed to the source as a stream of the items is successively directed past the source and the detector; detecting the quantity of light of a second color passing through each individual item with the detector, wherein the second color is different from the first color; and selectively removing individual items from the stream, the removal being based upon a comparison of the quantity of light of the first color detected and the quantity of light of the second color detected.
信息查询
IPC分类:
