DEVICE FOR A TIGHTENED CONNECTION OF STRUCTURAL PARTS ARRANGED ONE AFTER ANOTHER WITH DISTANCE
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United States of America Patent
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Issued Date -
May 24, 2012
app pub date -
Nov 18, 2011
filing date -
Nov 19, 2010
priority date (Note) -
Abandoned
status (Latency Note)
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Abstract
Device for tightened connection of structural parts positioned with distance between each other having a self-cutting screw penetrating an upper and a following lower structural part, and a screw thread engaging the structural parts. The upper structural part is prolonged by longitudinal rails received in recesses in the lower structural part, and an advance bolt is put in advance to the screw. The advance bolt stays in its advance position upon screwing back the screw thereby that a connection element activated by the displaced advance bolt causes a connection between the lower structural part and the longitudinal rails. Thereby both structural parts are kept at the existing distance.
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