Patent · US Expired

Sealing device

US7090219B2 · kind B2 · utility

2Cited by

17References

20Claims

0Family size

Assignee

Voith Paper Patent GmbH · DE

Inventors

Herbert Schrefl · Gföhl, AT
Rudiger Keinberger · Bezirk Krems an der Donau (Stadt), AT
Valentin Weiss · St. Georgen, AT
Anton Luger · Österreich, AT

Key dates

Filing date	Jul 23, 2003
Grant date	Aug 15, 2006
Priority date	—
Expiry date	Jul 23, 2023

Classification

Technology area (CPC D)Textiles; Paper
CPC primaryD21F3/10
WIPO fieldTextile and paper machines
WIPO sectorMechanical engineering

Abstract

Sealing device for sealing at least one zone of underpressure or overpressure adjoining a moving surface that includes at least one sealing element, positionable opposite the moving surface to form a front and a rear, with respect to a surface running direction. The sealing device includes a sealing section located at the front and a ventilation section located at the rear. The sealing section is structured to sealingly interact with the moving surface; and the ventilation section is structured and arranged to form a gap with the moving surface that widens in the surface running direction.

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