Anchor and anchor nut thereof
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United States of America Patent
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-
Jun 3, 2014
Issued Date -
N/A
app pub date -
Jan 17, 2008
filing date -
Mar 12, 2007
priority date (Note) -
In Force
status (Latency Note)
Importance
Abstract
An anchor includes a rotatable anchor rod an anchor plate and an anchor nut. The screw thread in the anchor nut matches the screw thread of the anchor rod only over part of the screw thread hole. Thus the anchor nut can only be screwed some way further onto the anchor rod, and up to a predetermined torque can be used for rotating the anchor rod during placement of the anchor. As soon as the anchor rod is firmly seated in the drill hole, as a result of the action of adhesive, mortar or expansion or spreading, the anchor rod forms a through-thread in the screw thread hole when the anchor nut is rotated relative to the anchor rod, and consequently the anchor nut can finally be screwed onto the anchor rod until it affixes the anchor plate in its final position to the ground.
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