Method and an apparatus for treating reusable bottles of plastic material
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United States of America Patent
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Jun 14, 1994
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N/A
app pub date -
Aug 14, 1992
filing date -
Aug 16, 1991
priority date (Note) -
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Abstract
By means of a combined heat/internal pressure treatment, reusable bottles of plastic material have their volume enlarged before they are filled. The shrinkage caused by cleaning with a hot cleaning liquid is thus compensated for and the attainable number of cycles is substantially increased.
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