Beam with enhanced bearing load strength and method of manufacture
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United States of America Patent
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Feb 11, 1997
Grant Date -
N/A
app pub date -
Jan 5, 1996
filing date -
Jan 5, 1996
priority date (Note) -
Expired
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Abstract
A first stage structural support beam (22,50) with flanges (12,14; 52,54) separated by an integral web (16) has the web stretched to increase the web height by a value .DELTA. following which a set of corrugations (34,48,62) is formed into the web. The resulting beam (38,40,50) has substantially increased weight-to-load characteristics as compared to the first stage beam.
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