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.
Type:
Grant
Filed:
July 11, 1977
Date of Patent:
October 31, 1978
Assignee:
Maschinenfabrik Johann Fischer
Inventors:
Stefan Fischer, Dieter Wollschlager, Helmut Scharrenbroich, Rainer Fischer