Electromechanical manipulator assembly

Details Electromechanical manipulator assembly Electromechanical manipulator assembly

1986-04-03

1988-03-29

Paperner, Leslie J.

Handling: hand and hoist-line implements

Hook, hoistline, or grab type

Locking device

294 661, B66C 144

Patent

active

047338954

ABSTRACT:
A powered, electromechanical manipulator assembly is disclosed which includes an electrically powered input device coupled by a hydraulic circuit to a mechanical manipulator. The hydraulic circuit is a fixed-volume, closed circuit in which a master piston-cylinder assembly is driven by a D.C. motor and is hydraulically coupled for direct and proportional displacement of a slave piston-cylinder assembly to enable smooth, accurate and easily controlled displacement of a manipulator arm. The manipulator arm is formed of a plurality of modules each having a fixed-volume, closed, hydraulic circuit and a slave cylinder. Both the slave and master cylinders include ambient pressure surfaces which are exposed to the water pressure at the operating depth of the assembly so that variation in depth does not materially affect the response or dexterity of the remote manipulator apparatus. An improved terminal module or jaw assembly is also disclosed.

REFERENCES:
patent: 2956834 (1960-10-01), Embree
patent: 3804452 (1974-04-01), David et al.
patent: 4350381 (1982-09-01), Hellmann
patent: 4452479 (1984-06-01), Terai et al.

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