Grating system forvehicular and pedestrian traffic
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United States of America Patent
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-
Feb 28, 2012
Grant Date -
Nov 11, 2010
app pub date -
May 8, 2009
filing date -
May 8, 2009
priority date (Note) -
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status (Latency Note)
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Abstract
A grating system typically includes longitudinal deep bars, axial crossbars, longitudinal filler bars seated on the crossbars between the deep bars and axial joining bars which join the deep bars and filler bars to one another. The crossbars are inserted lengthwise through slots formed in the deep bars. The joining bars are inserted lengthwise into holes formed in the deep bars and filler bars. The joining bars are typically above and aligned with the crossbars. The upper surfaces of the crossbars and filler bars are substantially flush with one another to form most of the upper surface of the grating system on which vehicular and pedestrian traffic typically travel.
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