Material or article handling – Self-loading or unloading vehicles – Loading or unloading by other carrier or mover means – and...
Reexamination Certificate
2005-01-18
2005-01-18
Krizek, Janice L. (Department: 3652)
Material or article handling
Self-loading or unloading vehicles
Loading or unloading by other carrier or mover means, and...
C414S921000
Reexamination Certificate
active
06843635
ABSTRACT:
A ramp assembly (20) having a frame attachable to a vehicle having a floor is disclosed. The ramp assembly further includes a platform coupled to a portion of the frame, a ramp having a weight, and a reciprocating mechanism disposed between the ramp and the platform coupled to a portion of the frame. The ramp assembly also includes a reciprocating mechanism disposed between the ramp and the platform for reciprocating the ramp between a deployed position and a stowed position in response to a load. The reciprocating mechanism counterbalancing the weight of the ramp during actuation of the ramp between the deployed and stowed positions to reduce the load required to reciprocate the ramp between the deployed and stowed positions.
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Christensen O'Connor Johnson & Kindness PLLC
Krizek Janice L.
Lift-U, division of Hogan Mfg., Inc.
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