Patent · US Expired

Apparatus for the electric pretreatment of non-conductive foils

US4527969A · kind A · utility

5Cited by

13References

5Claims

0Family size

Assignee

Softal Electronic · DE

Inventors

Eckhard Prinz · Schwarzenbek, DE
Bruno Kluss · Hamburg, DE

Key dates

Filing date	May 10, 1983
Grant date	Jul 9, 1985
Priority date	—
Expiry date	May 10, 2003

Classification

Technology area (CPC B)Performing Operations; Transporting
CPC primaryB29C59/12
WIPO fieldElectrical machinery, apparatus, energy
WIPO sectorElectrical engineering

Abstract

The apparatus for the electrical pretreatment of foils to increase the surface tension (surface energy) comprising a roller electrode forming a counter-electrode and over which is passed the foil to be treated, and at least three knife electrodes, which are arranged parallel to one another and at right angles to the direction of movement of the foil. The discharge edges of the knife electrodes have a constant spacing from the roller electrode surface, which leads to a much better treatment result.

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