Patent · US Expired

Device for electropolishing the inner surface of hollow cylindrical bodies

US4634511A · kind A · utility

6Cited by

3References

23Claims

0Family size

Assignee

Kraftwerk Union Aktiengesellschaft · DE

Inventors

Hermann Operschall · Achern, DE
Klaus Steiner · Pulheim, DE
Ludwig Voggenthaler · Regensburg, DE

Key dates

Filing date	Dec 12, 1984
Grant date	Jan 6, 1987
Priority date	—
Expiry date	Dec 12, 2004

Classification

Technology area (CPC G)Physics
CPC primaryG21F9/004
WIPO fieldSurface technology, coating
WIPO sectorChemistry

Abstract

A device for electropolishing the inner surface of a hollow cylindrical body with at least one sponge electrode movable along the inner surface, as well as with devices for guiding the sponge electrode and for supplying the sponge electrode with electrolyte includes a chassis braced against the inner surface of the hollow cylindrical body and being movable along the axis of curvature of the hollow cylindrical body, the sponge electrode being carried by the chassis, being pressable against the inner surface of the hollow cylindrical body and being rotatable about the axis of curvature of the hollow cylindrical body.

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