Patent · US Expired

Device for clamping and releasing film material and operation of said device

US5500656A · kind A · utility

3Cited by

4References

10Claims

0Family size

Assignee

Linotype-Hell AG · DE

Inventors

Gunnar Behrens · Kiel, DE
Gerhard Fritz Blöhdorn · Schönkirchen, DE
Hans Penza · Preetz, DE

Key dates

Filing date	Apr 22, 1993
Grant date	Mar 19, 1996
Priority date	—
Expiry date	Apr 22, 2013

Classification

Technology area (CPC B)Performing Operations; Transporting
CPC primaryB41B21/34
WIPO fieldTextile and paper machines
WIPO sectorMechanical engineering

Abstract

In order to improve a device for clamping and unclamping film material (3) on and from a stationary holder (12) in which the film material is taken by a transport device (4 to 8) through the holder (12) especially from an inlet to an outlet slot, and held in the holder (12) during exposure, in such a way that the film material can be reliably positioned in the holder (12), it is proposed that a positioning unit (19) be fitted which confers upon the film material (3) a tendency to move against the direction of transport when it is clamped.

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