Patent · US Expired

Method for working an electroformed magnetic metal sheet

US5926938A · kind A · utility

1Cited by

1References

8Claims

0Family size

Assignee

Harting Elektro-optische Bauteile GmbH & Co. KG · DE

Inventors

Mathias Jarek · Northeim, DE
Wolfgang Pott · Darmstadt, DE
Hans Kragl · Ober-Ramstadt, DE

Key dates

Filing date	May 20, 1997
Grant date	Jul 27, 1999
Priority date	—
Expiry date	May 20, 2017

Classification

Technology area (CPC Y)Emerging Cross-Sectional Technologies
CPC primaryY10T29/53083
WIPO fieldMachine tools
WIPO sectorMechanical engineering

Abstract

To planarize an electroformed, magnetic metal sheet having micropatterns, the metal sheet is clamped on a magnet and is mechanically processed on the back side of the metal in such a way that it assumes a plane-parallel shape. Metal sheets can be used which are not stress-free and are obtained in a fast electroplating process. Multiple copying is possible.

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