Hydraulic system for driving a winch during quartering and lifti

Details Hydraulic system for driving a winch during quartering and lifti Hydraulic system for driving a winch during quartering and lifti

1997-05-23

1998-09-15

Walsh, Donald P.

Implements or apparatus for applying pushing or pulling force

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

Device includes rotatably driven, cable contacting drum

254900, B66D 108

Patent

active

058068384

ABSTRACT:
The hydraulic system is used to drive a hydraulic motor for operation in a quartering direction for lowering of cargo as well as for operating the drive motor in a lifting direction. The hydraulic system employs an oil-gas accumulator which accumulates pressure oil during a quartering mode of operation of the drive motor. During a subsequent lifting mode of operation of the drive motor, stored pressure oil is used for the operation of the drive motor.

REFERENCES:
patent: 3780990 (1973-12-01), Edlund et al.
patent: 3871714 (1975-03-01), Behrend
patent: 4547857 (1985-10-01), Alexander

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