Method and apparatus for attaching a lifting lug to a concrete product
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United States of America Patent
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Aug 9, 2011
Grant Date -
Jan 17, 2008
app pub date -
Jul 10, 2007
filing date -
Jul 12, 2006
priority date (Note) -
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Abstract
Method and apparatus for attaching a part forming a lifting lug to fresh, prestressed hollow-core slab or massive slab, wherein the part forming the lifting lug is embedded by vibrating at least partly through the upper surface of the slab, after which the part forming the lifting lug is turned by vibrating, so that the lower parts of the lifting lug set themselves under the reinforcing strands of the slab.
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