The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Oct. 31, 1978
Filed:
Jul. 11, 1977
Stefan Fischer, Lohmar, DE;
Dieter Wollschlager, Konigswinter, DE;
Helmut Scharrenbroich, Neunkirchen-Seelscheid, DE;
Rainer Fischer, Lohmar, DE;
Maschinenfabrik Johann Fischer, Lohmar, DE;
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.