Land vehicles – Wheeled – Extensible
Reexamination Certificate
2007-09-14
2010-10-19
Phan, Hau V (Department: 3618)
Land vehicles
Wheeled
Extensible
C280S047180, C280S047190, C280S047340, C280S047240, C280S047350
Reexamination Certificate
active
07815215
ABSTRACT:
This disclosure describes a work site utility carrier that configures as a dolly or hand truck in its retracted mode and a work bench in its elevated mode. Pivoting arm pairs enable the carrier's lower and upper receptacles to be transitioned between modes. Two “wheelbarrow” handles are pivotally attached at the lower outer end of the upper receptacle. When oriented at right angles to the upper receptacle bottom, the handles lessen the effort needed to maneuver the carrier. In a “semi-inclined” position the carrier rests in part on the handle outer ends, with much of the mass of the upper receptacle already elevated. Full elevation is facilitated by moving the lower receptacle toward the handle outer ends which act as brakes to keep the carrier stationary during the elevation.
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Graves Charles E.
Olszewski John R
Phan Hau V
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