Fluid-operated, load-handling apparatus

Details Fluid-operated, load-handling apparatus Fluid-operated, load-handling apparatus

1982-02-24

1984-07-31

Jillions, John M.

Implements or apparatus for applying pushing or pulling force

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

Device includes rotatably driven, cable contacting drum

254360, B66D 108, B66D 148

Patent

active

044625715

ABSTRACT:
A fluid-operated, load-handling apparatus is provided for handling loads of various weights. The apparatus includes a fluid-operated hoist with an elongate member extending downwardly to a load-carrying unit. A pilot fluid-controlled regulator supplies fluid to the hoist and a load-responsive, pilot fluid regulator is carried by the load-carrying unit and supplies pilot fluid to the pilot fluid-controlled regulator. The pilot fluid is varied according to the weight of a load, being higher for heavier loads and lower for lighter loads so that the pressure of the fluid supplied to the hoist is accordingly varied by the pilot fluid-controlled regulator to automatically balance the load carried by the load-carrying unit. The apparatus also can include a brake for preventing the elongate member from moving up or down while loads are being changed or are at rest.

REFERENCES:
patent: 2831554 (1958-04-01), Reynolds
patent: 3260508 (1966-07-01), Powell
patent: 3384350 (1968-05-01), Powell
patent: 3457837 (1969-07-01), Powell
patent: 3901478 (1975-08-01), Peterson
patent: 3933388 (1976-01-01), Conboy

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