Hoist with an elastic cable

Details Hoist with an elastic cable Hoist with an elastic cable

1994-11-07

1996-04-23

Hail, III, Joseph J.

Implements or apparatus for applying pushing or pulling force

Apparatus for hauling or hoisting load, including driven...

Device includes rotatably driven, cable contacting drum

254277, 254336, 254362, B66D 150, B66D 112

Patent

active

055096387

ABSTRACT:
A hoist for loads that includes an elongated upright support assembly and an elongated extending support assembly pivotally mounted to the upper end of the former. The free end of the elongated radially extending assembly being able to follow a curved path in a horizontal plane. An elastic cable is attached to a non-elastic cable that is wound in a spool assembly so that the equilibrium point for the tool or equipment load can be adjusted at a vertical point. The spool is driven by an electric motor that in turn is activated by the wireless transmission of signals for winding and unwinding. These signals are produced when the tension at the end of the elastic cable attached to the load falls outside a predetermined range.

REFERENCES:
patent: 1345881 (1920-07-01), Purnell et al.
patent: 1978999 (1934-10-01), Jones
patent: 2136596 (1938-11-01), Smith
patent: 2859881 (1958-11-01), Coryell
patent: 3384350 (1968-05-01), Powell
patent: 3512657 (1970-05-01), Chambers
patent: 3653636 (1972-04-01), Burrell
patent: 4118012 (1978-10-01), Kerr et al.
patent: 4519585 (1985-05-01), Furrow
patent: 4706939 (1987-11-01), Gagne
patent: 5240229 (1993-08-01), Timmons

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