Bridges – Gangway – ramp – or dock leveler
Reexamination Certificate
2009-04-22
2011-11-29
Addie, Raymond W (Department: 3671)
Bridges
Gangway, ramp, or dock leveler
C014S071100, C014S071300, C014S071500
Reexamination Certificate
active
08065770
ABSTRACT:
An example dock leveler for a loading dock includes a position sensor system that not only senses upper and lower travel limits of the dock leveler's deck and/or lip but can also sense a plurality of intermediate positions between the limits. In some examples, the system includes one or more cable-extension transducers that provide a feedback signal that varies as a function of the deck's position relative to a dock platform and/or varies as a function of the lip's position relative to the deck. Such a position sensor system makes it possible to operate the dock leveler automatically with little to no manual intervention.
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Proffitt Greg
Senfleben Jason
Van Eimeren Mark
Addie Raymond W
Hanley Flight & Zimmerman LLC
Rite-Hite Holding Corporation
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