Vehicle mounted fork lift and method
AssigneeBig Hat Investments, LLC
InventorsMichael W. Bristow, Jeffrey D. Marsh
Life of this patent
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AssigneeBig Hat Investments, LLC
InventorsMichael W. Bristow, Jeffrey D. Marsh
Estimating the term…
A fork lift apparatus is mounted on a truck for picking up a load, placing the load in a traveling position on the truck, and for unloading the load. The apparatus comprises a lift frame, a shaft, a pair of spaced arms secured to the shaft, a cross member spanning between the distal ends of the arms distal and carrying the forks. The cross member is rotatable relative to the support arms. A pair of drive hydraulic cylinders rotates the shaft and thus moves the arms and the load between a loading/unloading position in which the load may be placed on the forks and the traveling position so that the load may be transported by the truck. A self-leveling system is provided for maintaining the load in a substantially level position as it moves between its loading/unloading and traveling positions.
1-27. (canceled)
A method of lifting a load from a loading/unloading position in which the load is at ground level, for lifting the load and transferring the load to a traveling position on a vehicle, and for unloading the load from its traveling position and for lowering the load to its loading/unloading position, the method employing a lift having a lift frame configured to be secured to said vehicle, a pair of side arms rotatably supported on said lift frame, a cross member carried by said side arms, a pair of forks carried by the cross member configured to be placed under said load when said load is in its loading/unloading position at ground level, a drive for moving load carried by said forks from said loading/unloading position and placing said load in its traveling on the vehicle, said drive being further operable for moving said load from said traveling position and placing said load in its loading/unloading position at ground level, said method comprising the steps of:
The method as set forth in claim 32 further comprising the step of unsecuring said load from said lift frame prior to moving said load from said traveling position toward said loading/unloading position.
Dependencies are inferred from the claim text.