Electromechanical manipulator assembly
US4733895A · kind A · utility
Assignee
Inventor
Key dates
| Filing date | Apr 3, 1986 |
| Grant date | Mar 29, 1988 |
| Priority date | — |
| Expiry date | Apr 3, 2006 |
Classification
- Technology area (CPC E)Fixed Constructions
- CPC primaryE21B41/04
- WIPO fieldHandling
- WIPO sectorMechanical engineering
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.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.