Patent · US Expired

Apparatus for blow molding plastic articles from a parison

US4427360A · kind A · utility

12Cited by

2References

12Claims

0Family size

Assignee

Krupp Corpoplast Maschinenbau GmbH · DE

Inventors

Peter Albrecht · Hamburg, DE
Wolfgang Reymann · Hamburg, DE
Klaus Vogel · Gondelsheim, DE

Key dates

Filing date	Dec 30, 1981
Grant date	Jan 24, 1984
Priority date	—
Expiry date	Dec 30, 2001

Classification

Technology area (CPC B)Performing Operations; Transporting
CPC primaryB29C2049/5661
WIPO fieldOther special machines
WIPO sectorMechanical engineering

Abstract

In the art of blow molding thermoplastic articles a pair of blow mold halves is closed around a parison. A blowing medium is applied so that the parison is thus blown to a container configuration. In this blowing step very high closing forces are necessary to maintain the mold halves in closed position. The invention provides for a plurality of biased pistons which are actuated by a pressure medium to support the mold halves on a stationary frame.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.