Material or article handling – Elevator or hoist and loading or unloading means therefor – Elevator wherein means comprises guide mounted for relative...
Patent
1977-08-05
1979-12-04
Kunin, Stephen G.
Material or article handling
Elevator or hoist and loading or unloading means therefor
Elevator wherein means comprises guide mounted for relative...
414634, B66F 920
Patent
active
041770013
ABSTRACT:
A hydraulically actuated forklift removably mountable at the front end of a pickup truck and having a frame supported on castered wheels and carrying an upright mast having vertically telescoping upper and lower sections and a fork assembly vertically movable in the upper mast section. Cables attached between the fork means and lower mast section are entrained over pulleys mounted at the top of the upper mast section so as to compound vertical movement of the fork means. An upright hydraulic ram is carried at its lower end on the lower section of the mast and connects to the top portion of the upper mast section. An electrically driven hydraulic pump, electric battery, reservoir and control valves are carried in an enclosed box structure forming part of the frame. The lower end of the mast is pivoted to the frame and a hydraulic cylinder moves the mast between a vertical lift position and a rearwardly inclined transport position. The control valves are solenoid actuated and are operated by power from the electric battery through a lift switch and an attitude switch.
REFERENCES:
patent: 1952730 (1934-03-01), Remde
patent: 2372870 (1945-04-01), Willrodt
patent: 2754020 (1956-07-01), Dunn et al.
patent: 3307656 (1967-03-01), Susag
patent: 3472408 (1969-10-01), Hendricks et al.
patent: 3672525 (1972-06-01), Schaeldler
patent: 3782571 (1974-01-01), Murphy
Kunin Stephen G.
Siemens Terrance L.
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