Global Patent Index - EP 1015805 A1

EP 1015805 A1 2000-07-05 - METHOD OF REHABILITATING AN EXISTING PIPELINE

Title (en)

METHOD OF REHABILITATING AN EXISTING PIPELINE

Title (de)

VERFAHREN ZUM AUSKLEIDEN EINES BESTEHENDEN ROHRES

Title (fr)

PROCEDE DE REHABILITATION D'UNE CANALISATION EXISTANTE

Publication

EP 1015805 A1 (EN)

Application

EP 98922520 A

Priority

  • AU 9800388 W
  • AU PO695497 A

Abstract (en)

[origin: WO9854509A1] The method is related to the rehabilitation of an existing pipeline in-situ, where the pipeline has a first end (1) and a second end (4), the method including the following steps: (a) forming a tubular liner (6) of a generally absorbent material; (b) feeding at least one expandable bladder (3) into the liner (6), the bladder having an open end (14) and a sealed end (5); (c) impregnating the liner (6) with a cold curable resin; (d) coating an external surface of the liner (6) and/or the internal surface of the pipeline to be rehabilitated with a water resistance adhesive coating; (e) feeding the liner into the first end (1) of the pipeline together with its associated bladder (3); (f) inserting a rod (2) into the bladder (3) to engage the sealed end (5); (g) forcing the liner (6) and the associated bladder (3) toward the second end (4) of the pipeline from the first end (1) such that the open end (14) and the sealed end (5) of the bladder (3) are adjacent the first and second ends (1, 4) respectively; (h) inflating the bladder (3) from the open end (14) with a gaseous fluid to force the liner (6) against the internal wall of the pipeline; and (i) maintaining the inflation until the resin impregnated liner has cured.

IPC 1-7 (main, further and additional classification)

F16L 55/162

IPC 8 full level (invention and additional information)

F16L 55/16 (2006.01); B29C 63/34 (2006.01); F16L 55/165 (2006.01)

CPC (invention and additional information)

F16L 55/1652 (2013.01)

Designated contracting state (EPC)

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

EPO simple patent family

WO 9854509 A1 19981203; AU PO695497 D0 19970612; EP 1015805 A1 20000705; EP 1015805 A4 20030402; JP 2002507157 A 20020305; NZ 501983 A 20010330

INPADOC legal status


2003-05-21 [18D] DEEMED TO BE WITHDRAWN

- Effective date: 20021201

2003-04-02 [A4] SUPPLEMENTARY SEARCH REPORT

- Effective date: 20030212

2002-10-16 [RIC1] CLASSIFICATION (CORRECTION)

- Free text: 7F 16L 55/162 A, 7B 29C 63/28 B, 7B 29C 63/34 B, 7F 16L 55/165 B, 7F 16L 58/10 B, 7B 29L 23:00 Z

2000-07-05 [17P] REQUEST FOR EXAMINATION FILED

- Effective date: 19991227

2000-07-05 [AK] DESIGNATED CONTRACTING STATES:

- Kind Code of Ref Document: A1

- Designated State(s): AT BE CH CY DE DK ES FI FR GB GR IE IT LI LU MC NL PT SE