Patent · US Expired

Method and device for electrostatic charging

US6159555A · kind A · utility

1Cited by

4References

16Claims

0Family size

Assignee

Eltex Elektrostatik GmbH · DE

Inventors

Ernst August Hahne · Allschwil, CH
Hermann Kunzig · Weil am Rhein, DE
Franz Knopf · Bühl, DE

Key dates

Filing date	Aug 9, 1999
Grant date	Dec 12, 2000
Priority date	—
Expiry date	Aug 9, 2019

Classification

Technology area (CPC B)Performing Operations; Transporting
CPC primaryB65H2404/1451
WIPO fieldHandling
WIPO sectorMechanical engineering

Abstract

The invention relates to a method for electrostatic charging of the two outer sides of at least one material web with charges of opposite polarity, prior to the further processing of the at least one material web, with the web being guided through the nip of a pair of rollers that are parallel to one another and are arranged with a short space between them, characterized in that the electrostatic charging of the two outer sides of the at least one material web is performed by the rollers in the nip between them.

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