High precision workpiece positioning table
US4505464A · kind A · utility
34Cited by
5References
13Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Mar 28, 1983 |
| Grant date | Mar 19, 1985 |
| Priority date | — |
| Expiry date | Mar 28, 2003 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF16C2322/39
- WIPO fieldMechanical elements
- WIPO sectorMechanical engineering
Abstract
A high-precision positioning table employs magnetic attraction to guide a table along at least one axis. Precision roller bearings between flat guide ways provide the support. A linear DC motor provides force for positioning along an axis without backlash. The linear motor also contributes attractive force aiding in the guidance or retention of the table. A vacuum lock secures the table in a selected position.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.