Apparatus for the manufacture of a thermoplastic container with a handle

US4123217A · kind A · utility

Assignee

• Maschinenfabrik Johann Fischer · DE

Inventors

• Stefan Fischer · Lichtenfels, DE
• Dieter Wollschlager · Rübhausen, DE
• Helmut Scharrenbroich · Neunkirchen, DE
• Rainer Fischer · Monschau, DE

Key dates

• Filing date: Jul 11, 1977
• Grant date: Oct 31, 1978
• Expiry date: Jul 11, 1997

Classification

• Technology area (CPC B): Performing Operations; Transporting
• CPC primary: B29L2031/7158
• WIPO field: Other special machines
• WIPO sector: Mechanical engineering

Abstract

A blow-molding apparatus for producing a flask-like container with a handle has two mold halves which surround a thermoplastic parison for subsequent inflation. Each of the mold halves has a guide channel through which one of a variety of tools may be admitted as complementary pairs. These tools include plungers for defining a region in the parison to serve as the hole of the handle, punches for compressing the plastic material in that same region and, finally, a knock-out mechanism, consisting of at least a ram for knocking out the cooled material so as to form the opening in the container which defines the handle.