Powered lifter

Details Powered lifter Powered lifter

1984-10-09

1986-12-16

Spar, Robert J.

Material or article handling

Traversing hoist type

Tow truck type

254 84, 180 191, 180306, B60P 312

Patent

active

046293914

ABSTRACT:
A powered lifter that enables one person to move loads such as cars, trucks, farm equipment, trailers and the like from one location to another. The device includes a rear frame supported by a pair of wheels that mounts an upstanding telescoping mast having a rotatable load supporting carriage at its upper end and a hydraulic cylinder connected to the mast for raising and lowering the carriage. The device also includes a front frame pivotally connected to the rear frame and supported by a drive wheel which is driven by a hydraulic motor and steered by a steering arm connected to the front frame which also houses the electronic circuitry for the device. A cabinet is mounted on the rear frame for housing the electrical and hydraulic components for the device, and for reinforcing the frame to avoid sagging and lateral shifting of the frame.

REFERENCES:
patent: 2336831 (1943-12-01), Ashworth
patent: 3312300 (1967-04-01), Jones
patent: 3489249 (1970-01-01), Stammen
patent: 3522892 (1970-08-01), Vegors
patent: 3759407 (1973-09-01), Boster et al.
patent: 3834667 (1974-09-01), Sanger
patent: 3841506 (1974-10-01), Smith
patent: 3961681 (1976-06-01), Fisher
patent: 4186813 (1980-02-01), Burdick
patent: 4210217 (1980-07-01), Lachowicz

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