Retaining device for assembling two panels, recyclable formwork for forming a concrete structure and packaging assembly using the same
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United States of America Patent
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Nov 20, 2012
Grant Date -
Jul 16, 2009
app pub date -
Mar 20, 2009
filing date -
Feb 15, 2007
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Abstract
The invention provides a reusable formwork for forming a polygonal upright concrete column using a plurality of retaining devices and a plurality of panels arranged with the retaining devices for providing a forming cavity between the panels adapted to receive concrete therein. Hooping means are used to hoop the panels forming the cavity.
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