Apparatus for the production of low tension moulded parts

US4908216A · kind A · utility

Assignee

• BAYER HEALTHCARE LLC · DE

Inventors

• Josef Dullings · Issum, DE
• Werner Kloker · Krefeld, DE
• Dieter Freitag · Krefeld, DE
• Holger Lusgen · Solingen, DE
• Helmut Schmid · Freudenstadt, DE
• Helmut Winchenbach · Meerbusch, DE

Key dates

• Filing date: Jan 23, 1989
• Grant date: Mar 13, 1990
• Expiry date: Jan 23, 2009

Classification

• Technology area (CPC Y): Emerging Cross-Sectional Technologies
• CPC primary: Y10S425/808
• WIPO field: Other special machines
• WIPO sector: Mechanical engineering

Abstract

A pacified mass is hardened under controlled conditions to produce low tension moulded parts (4) of duroplasts, the shringkage being compensated for by the movement of a lower mould part (2) and/or an upper mould part (3) to follow the mass.