Patent · US Expired

Foil blowing apparatus for thermoplastic synthetic resins

US5624689A · kind A · utility

3Cited by

4References

3Claims

0Family size

Assignee

REIFENHÄUSER GMBH & CO. KG MASCHINENFABRIK · DE

Inventors

Stefan Schmitz · Stuttgart, DE
Joachim Lange · Hagenbach, DE
Robert N. Wirtz · Royal Oak, US

Key dates

Filing date	Jun 8, 1995
Grant date	Apr 29, 1997
Priority date	—
Expiry date	Jun 8, 2015

Classification

Technology area (CPC B)Performing Operations; Transporting
CPC primaryB29C48/10
WIPO fieldOther special machines
WIPO sectorMechanical engineering

Abstract

A foil blowing head for a thermoplastic synthetic resin tube has a primary air guide juxtaposed with the blowing head portion defining the internal primary air outlet, also formed with passages for the secondary air and is axially shiftable on the discharge tube from which air is led from the foil balloon.

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