Treatment method and apparatus for printed circuit boards and the like
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United States of America Patent
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Jun 16, 1998
Issued Date -
N/A
app pub date -
May 15, 1996
filing date -
Apr 10, 1995
priority date (Note) -
Expired
status (Latency Note)
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Abstract
A method and apparatus for transporting thin materials, such as printed circuit boards, through an apparatus for treatment of said boards with an etchant, rinse or other chemical process step, including a transport conveyor having a plurality of rotation members with a specially configured rim for contacting the thin materials and moving them through the apparatus with a longer contact path in each rotation of a rotation member than the circumference of the rotation member.
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