Classifying – separating – and assorting solids – Sorting special items – and certain methods and apparatus for... – Sorting bottles – ampoules – jars – drinking vessels – or like...
Reexamination Certificate
2004-05-21
2009-06-02
Mackey, Patrick H (Department: 3653)
Classifying, separating, and assorting solids
Sorting special items, and certain methods and apparatus for...
Sorting bottles, ampoules, jars, drinking vessels, or like...
C209S591000
Reexamination Certificate
active
07541556
ABSTRACT:
The apparatus is intended for performing quality checks on preforms (10) each having a body made of plastics material having an internal cavity (12) communicating with the exterior through an end opening (14) of the body. The apparatus comprises: a conveyor device (20) for transporting the preforms (10) along a predetermined path, an optical device (22) disposed along the path and suitable for forming an image of each of the preforms (10), a pneumatic device (24) disposed along the path and suitable for putting the internal cavity (12) of each of the preforms (10) under partial vacuum for a predetermined period of time, an electronic control unit (28) suitable for comparing the images of the preforms (10) with a standard reference image and/or for checking whether the value of the partial vacuum remains unchanged during the said period of time, and a selector device (26) disposed along the path and capable of separating the preforms (10) on the basis of the result of the comparison and/or checking operations performed by the control unit (28).
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Edwin A. Sisson Attorney at Law, LLC
Hageman Mark
M & G Polymers USA, LLC
Mackey Patrick H
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