Patent · US Expired

Apparatus for manufacturing a blown synthetic hollow body with a closed bottom portion

US4188179A · kind A · utility

16Cited by

3References

2Claims

0Family size

Assignee

Ossberger Turbinenfabrik GmbH & Co. · DE

Inventors

Gerhard Linss · Weißenburg, DE
Karl-Friedrich Ossberger · Weißenburg, DE

Key dates

Filing date	Apr 20, 1978
Grant date	Feb 12, 1980
Priority date	—
Expiry date	Apr 20, 1998

Classification

Technology area (CPC B)Performing Operations; Transporting
CPC primaryB29L2031/7158
WIPO fieldOther special machines
WIPO sectorMechanical engineering

Abstract

An apparatus for manufacturing a blown hollow body having a closed bottom portion from a synthetic material comprising a ring nozzle extruder, a head portion forming section, and a multisectional blow-mold wherein extension pieces of each mold section from a cutting edge that cuts the extrusion and closes the bottom of the hollow body as the mold sections are brought together just prior to blowing.

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