Global Patent Index - EP 1144291 A3

EP 1144291 A3 20021120 - METHOD AND DEVICE FOR REDUCING THE VOLUME OR PRESSURE OF A FLUID WHICH IS DRIVEN THROUGH AN OPENING BY MOVING SURFACES

Title (en)

METHOD AND DEVICE FOR REDUCING THE VOLUME OR PRESSURE OF A FLUID WHICH IS DRIVEN THROUGH AN OPENING BY MOVING SURFACES

Title (de)

VERFAHREN UND VORRICHTUNG ZUR VERMINDERUNG DES VOLUMENS ODER DRUCKS EINES FLUIDS, DAS VON SICH BEWEGENDEN OBERFLÄCHEN IN EINEN SPALT EINGESCHLEPPT WIRD

Title (fr)

PROCEDE ET DISPOSITIF POUR REDUIRE LE VOLUME OU LA PRESSION D'UN FLUIDE ENTRAINE DANS UN INTERSTICE PAR DES SURFACES EN MOUVEMENT

Publication

EP 1144291 A3 20021120 (DE)

Application

EP 99941528 A 19990806

Priority

  • DE 19839916 A 19980902
  • EP 9905691 W 19990806

Abstract (en)

[origin: US6557269B1] The invention relates to a method and device for reducing the volume or pressure of a fluid which is driven through an opening (3, 17) by moving surfaces. According to said method, the opening (3, 17) is divided in at least two flow channels (5, 6, 14) by means of one or more flexible separation members (4). Each separation member (4) is attached at its rear end relatively to the direction of displacement of said surfaces, and its front finishing end extends inside said opening (3, 17). The inventive method can be advantageously implemented during production and further transformation of strip-shaped materials (paper, cardboard strips, plastic material sheets) for bringing the strip which moves on an element (cylinder, roll, rigid guiding element, winding reel) into close contact with said element.

IPC 1-7

B65H 20/00

IPC 8 full level

B65H 18/26 (2006.01); B65H 20/02 (2006.01); B65H 23/00 (2006.01)

CPC (source: EP US)

B65H 18/26 (2013.01 - EP US); B65H 23/00 (2013.01 - EP US); B65H 2601/211 (2013.01 - EP US)

Designated contracting state (EPC)

AT BE CH CY DE DK ES FI FR GB GR IE IT LI LU MC NL PT SE

DOCDB simple family (publication)

US 6557269 B1 20030506; AT E240895 T1 20030615; AU 5510899 A 20000327; CA 2346916 A1 20000316; DE 19839916 A1 20000309; DE 59905684 D1 20030626; EP 1144291 A2 20011017; EP 1144291 A3 20021120; EP 1144291 B1 20030521; JP 2003512268 A 20030402; WO 0013998 A2 20000316; WO 0013998 A3 20021003

DOCDB simple family (application)

US 78645501 A 20010516; AT 99941528 T 19990806; AU 5510899 A 19990806; CA 2346916 A 19990806; DE 19839916 A 19980902; DE 59905684 T 19990806; EP 9905691 W 19990806; EP 99941528 A 19990806; JP 2000568767 A 19990806