Patent · US Expired

Method and apparatus for producing a plastic molded chip card having reduced wall thickness

US5681356A · kind A · utility

54Cited by

9References

13Claims

0Family size

Assignee

GAO Gesellschaft für Automation und organisation mbH · DE

Inventors

Renee-Lucia Barak · Unterhaching, DE
Yahya Haghiri-Tehrani · Munich, DE
Helmut Baader · Nabburg, DE

Key dates

Filing date	Apr 5, 1994
Grant date	Oct 28, 1997
Priority date	—
Expiry date	Apr 5, 2014

Classification

Technology area (CPC H)Electricity
CPC primaryH01L2924/0002
WIPO fieldOther special machines
WIPO sectorMechanical engineering

Abstract

An apparatus and method for producing plastic chip cards and chip card blanks with a wall thickness considerably reduced in certain areas involves first injecting the plastic material into an initial mold space that has no reductions in wall thickness as yet. The distance between certain wall areas of the initial mold space is then reduced to the required reduced measure, displacing the plastic material into adjacent areas of the mold space.

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