Beam with varied bending moment, apparatus, and method
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United States of America Patent
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Dec 15, 2015
Grant Date -
Apr 16, 2015
app pub date -
Jun 27, 2014
filing date -
Oct 11, 2013
priority date (Note) -
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Abstract
A structural beam includes a reinforcement beam having a length and mounts at ends of the beam and cross sectional shapes at various locations along the length, including a first cross sectional shape near ends of the beam providing a first bending moment and a second cross sectional shape at a center of the beam providing a second bending moment different than the first bending moment, and further including intermediate cross sectional shapes between the ends and center having intermediate bending moments between the first and second bending moments. The cross sections may define open C-shapes or may include a tubular shape.
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