Sealing of apparatus with continuous product transport

US4794751A · kind A · utility

Assignee

• BAYER HEALTHCARE LLC · DE

Inventors

• Wolfram Wagner · Dormagen, DE
• Peter-Roger Nyssen · Dormagen, DE
• Dieter Paulini · Dormagen, DE
• Dirk Berkenhaus · Cologne, DE
• Siegfried Kulisch · Dormagen, DE

Key dates

• Filing date: Mar 10, 1987
• Grant date: Jan 3, 1989
• Expiry date: Mar 10, 2007

Classification

• Technology area (CPC Y): Emerging Cross-Sectional Technologies
• CPC primary: Y10S57/908
• WIPO field: Chemical engineering
• WIPO sector: Chemistry

Abstract

A method for sealing a passage (2) in a wall (3) for the unsupported transport of continuously accumulating tows (1), in which the pressure difference on both sides of the wall (3) is compensated by an additional gaseous medium (5).