Implements or apparatus for applying pushing or pulling force – Hoisting truck – Single throw lever
Reexamination Certificate
2006-10-31
2008-08-19
Wilson, Lee D (Department: 3723)
Implements or apparatus for applying pushing or pulling force
Hoisting truck
Single throw lever
C254S13300A, C254SDIG016
Reexamination Certificate
active
07413168
ABSTRACT:
The power unit includes a generally rectangular frame having a pair of parallel lift arms with forward ends extendable upward therefrom. The lift arms have leveling pads pivotally attached to the outer sides thereof, wherein each leveling pad includes a generally rectangular plate oriented vertically having a rearward edge and an upper edge with a longitudinal flange extending outward from the upper edge. The lift bridge slides along the upper surface of the lift arms and includes a rectangular plate having a bottom surface and a pair of sides. Each side has an inner longitudinal channel for engaging the outward flange of the leveling pad, and has a finger extending rearward with a flange extended downward for abutting the rearward edge of the leveling pad. The forward ends of the lift arms are elongated beyond the pivot connection of the leveling pads, and the bottom surface of the bridge includes recesses therein for receiving the elongated ends of the lift arms when in the elevated position, for locking the bridge onto the lift arms. The bridge includes a mechanism for automatically biasing the bridge toward the forward ends of the lift arms.
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Turner Roger C.
Wilson Lee D
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