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:
Jul. 25, 1978
Filed:
Mar. 04, 1977
Helmut Scharrenbroich, Neunkirchen, DE;
Voith-Fischer Kunststofftechnik GmbH & Co. KG, Lohmar, DE;
Abstract
A tempering mold for parisons which are formed in a parison mold and are about to be introduced into a blow mold has a tubular section open at one end and a second section reciprocable in the other end of the tubular section. A parison which is carried by a blowing mandrel, which tapers in a direction toward the free end of the mandrel and whose smaller-diameter end is closed, is introduced into the tubular section by way of the open end so that its closed end engages and displaces the yieldably mounted second section before the conical surface of the parison comes into contact with the complementary internal surface of the tubular section. The latter is biased by helical springs so that it can yield to the parison by moving axially and/or by pivoting with respect to its support. At least one of the sections is heated and/or cooled by a fluid or in another suitable way to effect rapid and reproducible conditioning of successive parisons.