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US 3,940,000 AGranted
Universal hydraulic lift attachment for tractors
OwnerC. K. Mouselinventor
Life of this patent
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OwnerC. K. Mouselinventor
Estimating the term…
The present invention relates to a hydraulic lift attachment that is universally attachable to almost all makes and models of tractors. In one embodiment, the lift attachment comprises a frame, a hollow support member rigidly attached to and depending from the frame, and a boom pivotably mounted at one end to the frame and extending rearwardly therefrom. A hydraulic piston assembly is connected between the boom and the frame and operates off the tractor's hydraulic system for pivotably moving the boom. The frame is primarily supported by the tractor draw bar which is inserted in the support member and secured thereto with removable bolts. Two chains, rigidly attached at one end to respective sides of the frame, are connectable at the other end to the lift arms of the tractor's three point hitch and provide additional support for the frame.
A hydraulic lift assembly attachable to a tractor having a draw bar, a hitch with vertically pivotable arms, and a hydraulic system for operating the arms and connectable hydraulic attachments, said lift assembly comprising:
In a tractor including a draw bar, at least two hydraulically actuated pivotably mounted hitch arms extending rearwardly of the tractor on either side of said draw bar, hydraulic piston means for hydraulically raising and lowering said hitch arms, and hydraulic fluid supply means in fluid communication with said hydraulic piston means, the improvement which comprises a readily removable lifting device, said lifting device comprising:
Dependencies are inferred from the claim text.