Breakaway steel guardrail post
Number of patents in Portfolio can not be more than 2000
United States of America Patent
Stats
-
Nov 23, 1999
Grant Date -
N/A
app pub date -
Nov 4, 1998
filing date -
Nov 4, 1998
priority date (Note) -
In Force
status (Latency Note)
Importance
Abstract
A breakaway guardrail post includes upper and lower post sections spaced apart but connected by a breakaway joint. The joint is attached at one end to the upper post by a first fastener set and connected at a second end by a second fastener set. The first fastener set has a failure strength less than that of the second fastener set. Upon impact forces being applied to the upper post section, the first fastener fails and the upper post section rotates downwardly.
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Cited Art Landscape
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