Portable hoist

Details Portable hoist Portable hoist

1985-08-12

1987-06-09

Spar, Robert J.

Material or article handling

Self-loading or unloading vehicles

Loading or unloading by other carrier or mover means, and...

212180, 212244, 16392, 16390, B65G 6702

Patent

active

046717315

ABSTRACT:
A portable hoist is provided for lifting, transporting, and depositing loads onto a platform, such as a work bench, or into a vehicle, such as a pick-up truck. The portable hoist comprises a mounting for attachment to the a wall of a vehicle or a work bench, an upright support structure connected to the mounting by a hinge connection which allows for swinging movement of the support structure about its vertical axis, and a boom pivotally secured at one end to the upper end of the support structure such that the free end of the boom can be raised and lowered. A hydraulic operator acting between the support structure and the boom serves to raise and lower the boom. A sheave is carried at the free end of the boom and a hoist line connected to the support structure loops over the sheave and carries a hook assembly for attachment to the load to be lifted.

REFERENCES:
patent: 189866 (1877-04-01), Long
patent: 894630 (1908-07-01), Gudeman
patent: 1479352 (1924-01-01), Witten
patent: 2517434 (1950-08-01), Humpal et al.
patent: 2947425 (1960-08-01), Nichols
patent: 3574391 (1971-04-01), Doboze
patent: 3845869 (1974-11-01), Sowers et al.
patent: 3899089 (1975-08-01), Wardlaw
patent: 4556358 (1985-12-01), Harlan

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