Patent · US Expired

Foil stretching machine for shrinking foils

US5390398A · kind A · utility

7Cited by

4References

12Claims

0Family size

Assignee

Lindauer DORNIER Gesellschaft mbH · DE

Inventors

Andreas Rutz · Gettorf, DE
Rudolf Langer · Gettorf, DE

Key dates

Filing date	Jul 16, 1992
Grant date	Feb 21, 1995
Priority date	—
Expiry date	Jul 16, 2012

Classification

Technology area (CPC B)Performing Operations; Transporting
CPC primaryB29C55/165
WIPO fieldOther special machines
WIPO sectorMechanical engineering

Abstract

A film stretching machine is also capable of shrinking undulating film by gripping film to be treated at its longitudinal edges by pivotable clips which are disposed spaced apart on a chain conveyor and are guided in a chain conveyor guide. The film is shrunk by a longitudinal adjustment of the film areas lying between the gripping members of neighboring clips. In the apparatus, the longitudinal adjustment or shrinking occurs in that each clip is constructed as a pivoting clip and includes a rolling part on which the gripping part is mounted so as to be pivotable about an axis which is disposed parallel to the film plane.

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