Bridges – Gangway – ramp – or dock leveler
Reexamination Certificate
2007-07-03
2007-07-03
Addie, Raymond (Department: 3671)
Bridges
Gangway, ramp, or dock leveler
C193S038000
Reexamination Certificate
active
11004557
ABSTRACT:
The tri-folding ramp is a portable, collapsible device that includes three sections which define an upper surface of the ramp as having an arc-shaped profile. The arc-shaped profile of the ramp can reduce the loading angle between the distal end of the ramp and an upper loading surface, thereby inhibiting contact between the vehicle's undercarriage and the ramp's upper surface and/or the upper loading surface as the vehicle is entering or exiting the ramp.
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Addie Raymond
Cox Boyd D.
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