Patent · US Expired

Two-coordinate positioning device

US4286197A · kind A · utility

9Cited by

2References

11Claims

0Family size

Inventors

Riessland Eberhard · Dresden, DE
Helmut Beyer · Kassel, DE
Erich Kossman · Giddings, US

Key dates

Filing date	Feb 26, 1979
Grant date	Aug 25, 1981
Priority date	—
Expiry date	Feb 26, 1999

Classification

Technology area (CPC H)Electricity
CPC primaryH02K2201/18
WIPO fieldElectrical machinery, apparatus, energy
WIPO sectorElectrical engineering

Abstract

A positioning device with two coordinates, for the moving of two components relative to each other. The positioning device with two coordinates serves for the exact positioning of a tool or workpiece, preferably of semi-conductor discs, for the purpose of checking or fabricating in the course of the manufacturing process.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.