Measuring and testing – Inspecting
Patent
1995-08-10
1997-08-26
Dombroske, George M.
Measuring and testing
Inspecting
73863, 73 45, G01N 1502
Patent
active
056612494
ABSTRACT:
The invention is a method and an apparatus for inspecting small articles. The invention includes a first rotatable support having a first circumferential surface for holding the small articles; a second rotatable support having a second circumferential surface with the first and second circumferential surfaces being opposed to each other and spaced apart at a closest separation which is greater than a thickness of the small articles and is a transfer point for transferring the small articles from the first circumferential surface to the second circumferential surface; a vacuum source coupled to suction holes disposed at spaced apart locations on the first circumferential surface for holding the small articles at the spaced apart locations during rotation to the transfer point; a vacuum source coupled to suction holes disposed at spaced apart locations on the second circumferential surface for holding the small articles at the spaced apart location during rotation from the transfer point; and a plurality of detector devices, one of the detector devices being offset radially outward from and facing the second circumferential surface of the second rotatable support for viewing one of a top or bottom surface of the small articles and at least another of the plurality of detector devices being positioned for viewing at least one other surface of the small articles.
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patent: 5515740 (1996-05-01), Gamberini
Asteriadis Nikolaus
Kirchner Thomas
Rupp Michael
Schiffer Werner
Varhaniovsky Gyula
Dombroske George M.
Noori Max H.
Walter Grassle GmbH
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