Classifying – separating – and assorting solids – Sorting special items – and certain methods and apparatus for... – Condition responsive means controls separating means
Patent
1994-02-09
1995-03-21
Gastineau, Cheryl L.
Classifying, separating, and assorting solids
Sorting special items, and certain methods and apparatus for...
Condition responsive means controls separating means
209587, 209639, 209939, 382 8, 382 28, 348 89, 348 91, B07C 5342, B07C 500
Patent
active
053988183
ABSTRACT:
A system and method for sorting items (16) computes the geometric center ("centroid") (156) of any item containing a defect (26) or multiple defects, and directs an ejection air blast at the centroid of the defective item rather than at the location of the defect. Video data from a scanning camera (24) are transmitted to an "item processor" (32A') and a "defect processor" (32). The item processor builds in memory (108) an image of every acceptable or defective item while the defect processor builds a "defect list" (170) of defect coordinate locations detected only on defective items. The defect processor transmits the defect list to the item processor where the defect list is compared with the stored image of the item. For each item containing at least one defect, the item processor computes a defective item centroid that is added to a defective items list (174) for use by a defect removal process that actuates air blasts directed toward the centers of defective items. Air blasts directed toward the centroids of defective items maximize their deflection and minimize item spinning and thereby improve item rejection efficiency and reduce the inadvertent bumping of adjacent acceptable items toward the rejection conveyor. If multiple defects are detected on a single item, a single air blast is directed at the centroid of the defective item.
REFERENCES:
patent: 4344539 (1982-08-01), Lockett
patent: 4759074 (1988-07-01), Iadipaolo et al.
patent: 5058174 (1991-10-01), Carroll
patent: 5085325 (1992-02-01), Jones et al.
patent: 5148923 (1992-09-01), Fraenkel et al.
patent: 5305894 (1994-04-01), McGarvey
Gastineau Cheryl L.
Nguyen Tuan N.
Simco/Ramic Corporation
LandOfFree
Center shot sorting system and method does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Center shot sorting system and method, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Center shot sorting system and method will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-1143819