Wall structure with improved strength
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United States of America Patent
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Sep 2, 2003
Grant Date -
N/A
app pub date -
Feb 12, 1999
filing date -
Feb 26, 1998
priority date (Note) -
Expired
status (Latency Note)
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Abstract
A wall for making tanks includes two superimposed plates connected to each other at respective spaced apart connected points distributed on a surface of the plates, at least one of the two plates, between respective connecting zones, bulging outward, so that separation between the two plates increases in every radial direction with distance from each connected point to a maximum separation midway between neighboring connected points. The wall has a quilted appearance.
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