Global Patent Index - EP 0670937 A1

EP 0670937 A1 19950913 - LIQUID-TIGHT COUPLING FOR INTERCONNECTED PLASTIC WEBS FORMING A SEALING WALL.

Title (en)

LIQUID-TIGHT COUPLING FOR INTERCONNECTED PLASTIC WEBS FORMING A SEALING WALL.

Title (de)

FLÜSSIGKEITSDICHTES SCHLOSS FÜR MITEINANDER VERBUNDENE, EINE DICHTUNGSWAND BILDENDE KUNSTOFFBAHNEN.

Title (fr)

RACCORDEMENT ETANCHE AUX LIQUIDES POUR BANDES EN MATIERES PLASTIQUES MUTUELLEMENT RELIEES DE MANIERE A FORMER UNE PAROI D'ETANCHEITE.

Publication

EP 0670937 A1 19950913 (DE)

Application

EP 94901908 A 19931129

Priority

  • DE 4240120 A 19921130
  • DE 4311948 A 19930410
  • EP 9303343 W 19931129

Abstract (en)

[origin: DE4311948A1] A liquid-tight coupling for plastic webs to be interconnected in order to form a sealing wall has an inner part (1) and an outer part (2) constituted by a positive and a negative profile. The outer part is designed as a cable profile and forms an inner chamber between its branches for receiving a sealing zone, in particular a heat-sealable zone. Before both coupling parts are assembled, this inner chamber is closed by an easily severable link arranged at the ends of the branches to protect the sealing zone from dirt. This link is only opened when the inner part is threaded into the outer part. In the inner chamber of the outer part (1), which in the assembled state of the coupling parts (1, 2) is outwardly closed by seals, in particular labyrinth seals, is provided at least one heat-sealable sealing zone (15a*, 15b*) which may be activated by at least one heating element (16a, 16b) controllable from the outside and arranged in the proximity of said sealing zone.

IPC 1-7

E02D 29/16; E02D 5/08

IPC 8 full level

B29C 65/82 (2006.01); E02D 19/18 (2006.01); E02D 31/00 (2006.01); E04D 5/12 (2006.01); E04D 5/14 (2006.01); E04D 13/00 (2006.01); G01M 3/16 (2006.01)

CPC (source: EP)

B29C 65/56 (2013.01); B29C 66/1248 (2013.01); B29C 66/43 (2013.01); E02D 19/185 (2013.01); E02D 31/004 (2013.01); E04D 5/12 (2013.01); E04D 5/142 (2013.01); E04D 5/149 (2013.01); E04D 13/00 (2013.01); G01M 3/16 (2013.01); G01M 3/165 (2013.01); B29C 65/8253 (2013.01)

Citation (search report)

See references of WO 9412735A1

Designated contracting state (EPC)

AT CH DE FR GB LI NL

DOCDB simple family (publication)

DE 4311948 A1 19940601; EP 0670937 A1 19950913; WO 9412735 A1 19940609

DOCDB simple family (application)

DE 4311948 A 19930410; EP 9303343 W 19931129; EP 94901908 A 19931129