Plastic injection anchoring sleeve
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United States of America Patent
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Feb 10, 2004
Grant Date -
Mar 13, 2003
app pub date -
Sep 4, 2002
filing date -
Sep 7, 2001
priority date (Note) -
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status (Latency Note)
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Abstract
In a plastic injection anchoring sleeve having an essentially cylindrical sleeve body with a closed front end and an open opposite end for the insertion of an anchoring bolt, the sleeve wall has a plurality of openings closed by flaps which are formed integrally with the sleeve and pivotally supported thereby at their front ends, the flaps being provided with axially extending ribs projecting radially inwardly and having inclined front and rear end portions forming ramps for lifting the flaps outwardly and out of the openings when the sleeve body is removed axially from a molding core after injection molding, or when an anchor bolt is inserted into the sleeve body.
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