Metal Roadway Safety Barrier
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United States of America Patent
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N/A
Issued Date -
Apr 14, 2011
app pub date -
Feb 6, 2009
filing date -
May 28, 2008
priority date (Note) -
Abandoned
status (Latency Note)
Importance
Abstract
Metal roadway safety barrier formed by a series of horizontal rails, girders or fences (1) mounted on vertical posts (2) by means of a 'breakable' joining mechanism (3) which provides said joint with the possibility of disengaging in a controlled manner when the level of the force transmitted thereto, following the impact of a vehicle, reaches a given value. The 'breakable' joint is formed by a screw (3) which has along its shank, at a certain distance from its head, a cross-section of lesser mechanical strength. In an alternative embodiment, the 'breakable' joint is formed by means of a 'breakable' washer.
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