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US 4,392,688 AGranted
Crop or product carrier
OwnerJames A. E. S. McIntyreinventor
Life of this patent
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OwnerJames A. E. S. McIntyreinventor
Estimating the term…
A trailer is provided in the form of a container having side walls (20, 21, 22) and a movable base (23) which can be raised and lowered within the side walls under control of a ram (25). Thus the height of the base can be adjusted as a crop or product begins to fill the space available above the base in a raised position and by this means the extent of drop of the crop or product into the container can be made as small as possible so that the possibility of damage is significantly reduced. The base can be supported by scissor arms (27, 28) and can also be locked in the lower position to the container walls so that when the ram (25) is operated the walls and base will be tilted together about a pivot (32) for unloading.
A crop or product carrier comprising a container having side walls, end walls and a base, at least one fluid powered ram forming part of a lifting and lowering mechanism enabling the base to be raised and to be lowered progressively with respect to the side walls and end walls as the crop or product quantity increases within the container, a pivot at one end of the container enabling the base, side walls and end walls to pivot about said one end to tip the container for unloading, the end wall at said one end of the container being operable to provide an outlet opening for discharge of the crop or product during unloading, locking means for securing the base in the lowered position within the container, the means for raising and lowering the base also acting to tip the container about the pivot for unloading when the locking means secures the base in the lowered position.
Dependencies are inferred from the claim text.