Patent · US Expired

Device for the surface treatment of thermoplastic moldings by corona discharge

US4467200A · kind A · utility

8Cited by

7References

12Claims

0Family size

Assignees

Klaus Kalwar · DE
Firma Carl Freudenberg · DE

Inventors

Klaus Kalwar · Steinhagen, DE
Egon Freytag · Bodenwerder, DE
Lothar Hirschinger · Mannheim, DE
Klaus Ebner · Aglasterhausen, DE

Key dates

Filing date	Nov 12, 1981
Grant date	Aug 21, 1984
Priority date	—
Expiry date	Nov 12, 2001

Classification

Technology area (CPC H)Electricity
CPC primaryH01T19/00
WIPO fieldElectrical machinery, apparatus, energy
WIPO sectorElectrical engineering

Abstract

An electric discharge corona discharge device is disclosed which is useful for rendering of the surface of plastic molded parts capable of being adhesively bound to another part. The device includes flexible, limp counter electrodes which can be adjusted so as to maintain a substantially uniform discharge over the plastic part surface. The discharge is obtained with alternating current and the base underneath the plastic part constitutes the base electrode.

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