EP 0429505 B1 19930609 - SEAL FOR CIVIL ENGINEERING WORKS AND PROCESS FOR MANUFACTURING IT
Title (en)
SEAL FOR CIVIL ENGINEERING WORKS AND PROCESS FOR MANUFACTURING IT
Publication
Application
Priority
- DE 3827990 A 19880818
- DE 3904594 A 19890216
Abstract (en)
[origin: WO9002089A1] A seal for civil engineering works or the like comprises a firm structural lower layer (3, 4), such as a concrete layer (3) with a fine layer (4), to which a sealing layer of plate-like elements (1) made of corrosion-resistant sheet metal, such as special sheet steel, is applied and bonded (5). The joints (10, 11, 14) of adjacent elements (1) are designed as expansion joints and welded (2, 6) together along their length. Tubular test ducts (40) are arranged in the expansion joints (19, 20). After the seal is assembled, an inert gas is introduced into the test ducts (40), and the seal and welded joints (10, 11, 14) are scanned. The escape of inert gas indicates the presence of a leak.
IPC 1-7
IPC 8 full level
B65D 90/04 (2006.01)
CPC (source: EP)
B65D 90/045 (2013.01)
Designated contracting state (EPC)
AT BE CH DE FR GB IT LI LU NL SE
DOCDB simple family (publication)
WO 9002089 A1 19900308; AU 4053589 A 19900323; DE 58904658 D1 19930715; EP 0429505 A1 19910605; EP 0429505 B1 19930609
DOCDB simple family (application)
EP 8900970 W 19890817; AU 4053589 A 19890817; DE 58904658 T 19890817; EP 89909192 A 19890817