Device to produce molded plastic parts from a flowable reaction mixture

US4895503A · kind A · utility

Assignee

• Maschinenfabrik Hennecke GmbH · DE

Inventors

• Ferdinand Proska · Leverkusen, DE
• Hans-Michael Sulzbach · Rübhausen, DE
• Ferdinand Althausen · Neunkirchen, DE
• Reiner Raffel · Siegburg, DE

Key dates

• Filing date: Oct 18, 1988
• Grant date: Jan 23, 1990
• Expiry date: Oct 18, 2008

Classification

• Technology area (CPC B): Performing Operations; Transporting
• CPC primary: B29C33/0072
• WIPO field: Other special machines
• WIPO sector: Mechanical engineering

Abstract

To avoid contaminating the sprue runner which leads from the mixing device to the molding cavity of a molding tool for the production of molded plastic, especially foam plastic, parts, an insertable lining is placed in the sprue runner and can be removed along with the molded part.