Elevator – industrial lift truck – or stationary lift for vehicle – Industrial lift truck or required component thereof – Having structure allowing propulsion or steering by walking...
Patent
1994-12-09
1997-07-22
Terrell, William E.
Elevator, industrial lift truck, or stationary lift for vehicle
Industrial lift truck or required component thereof
Having structure allowing propulsion or steering by walking...
187234, 187244, B66F 906
Patent
active
056496087
ABSTRACT:
A load transport lifter having the following characteristics: a lift platform with a moveable base frame connected to a cylinder mechanism and struts; upper sprockets are attached to the end of the piston rod of the cylinder mechanism and lower sprockets are attached to a lift mechanism disposed along the struts; a cable or chain, one end of which is fixed to the lift platform, is wound around the upper and lower sprockets and is fixed at the other end to the top of the struts; further, coil springs are attached to the lift mechanism and adapted to push it downward; finally, a locking mechanism is adapted to lock the lift mechanism in a set position.
REFERENCES:
patent: 2918143 (1959-12-01), Shaffer
patent: 3072219 (1963-01-01), Olson
patent: 3077951 (1963-02-01), Ramsey
patent: 3208556 (1965-09-01), Shaffer
patent: 4559840 (1985-12-01), Sasaki
patent: 5351787 (1994-10-01), Hoch et al.
Bishamon Industries Corporation
Durando Antonio R.
Terrell William E.
Tran Khoi H.
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