Patent · US Expired

Process for controlling the force on a moving web of material

US5377891A · kind A · utility

7Cited by

10References

2Claims

0Family size

Assignee

Erhardt & Leimer GmbH · DE

Inventors

Dieter Peltzer · Krefeld, DE
Heinz Hermanns · Korschenbroich, DE
Hans Seibold · Bendorf, DE

Key dates

Filing date	Sep 24, 1992
Grant date	Jan 3, 1995
Priority date	—
Expiry date	Sep 24, 2012

Classification

Technology area (CPC D)Textiles; Paper
CPC primaryD06C3/06
WIPO fieldChemical engineering
WIPO sectorChemistry

Abstract

An process for controlling the force exerted on a moving web of material, including a batten roller having an adjustable drive and a fixing roller having a pressure sensor. An amplifier is coupled between the pressure sensor and the adjustable drive. A web pulling device pulls the web in a downstream direction across the batten roller and the fixing roller. The pressure sensor generates a first signal representing the tensile force on the web as it passes the fixing roller. The first signal is amplified to provide a control signal to the drive for adjusting the speed of the batten roll.

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