Global Patent Index - EP 1255914 A1

EP 1255914 A1 2002-11-13 - INJECTION ANCHOR

Title (en)

INJECTION ANCHOR

Title (de)

INJEKTIONSANKER

Title (fr)

ANCRE A INJECTION

Publication

EP 1255914 A1 (DE)

Application

EP 01911419 A

Priority

  • DE 0100437 W
  • DE 20001930 U

Abstract (en)

[origin: WO0157363A1] The invention relates to a method for stabilising broken rock or subsurface material, especially for supporting roads (1) and faces in mining and for tunnel construction, for securing rock, subsurface stabilisation, avalanche protection or similar; and to an injection anchor (50) for carrying out said method. The injection anchor (50) is introduced into a bore and secured against being pushed out with a sealant in the rear area of the injection anchor (50). According to the invention, the injection anchor has an elastically deformable sealing element on the end side in order to improve the hold for the injection anchor (50) inside the bore. Said sealing element consists of e.g., a filling tube (34) which is at least partially pre-filled with a setting acceleration agent for the respective injection agent and is then filled up during the injection process, and causes the injection anchor (50) to be pressed into the borehole as a result of the injection agent setting.

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

E21D 21/00

IPC 8 full level (invention and additional information)

E02D 5/80 (2006.01); E21D 21/00 (2006.01)

CPC (invention and additional information)

E21D 21/0006 (2013.01); E02D 5/808 (2013.01); E21D 21/0026 (2013.01); E21D 21/0053 (2016.01); E21D 21/0073 (2016.01)

Citation (search report)

See references of WO 0157363A1

Designated contracting state (EPC)

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

EPO simple patent family

DE 20001930 U1 20000907; AU 4045701 A 20010814; EP 1255914 A1 20021113; PL 355359 A1 20030210; WO 0157363 A1 20010809

INPADOC legal status


2006-05-31 [18D] APPLICATION DEEMED TO BE WITHDRAWN

- Effective date: 20051119

2004-11-17 [17Q] FIRST EXAMINATION REPORT

- Effective date: 20040930

2002-11-13 [17P] REQUEST FOR EXAMINATION FILED

- Effective date: 20020905

2002-11-13 [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 TR

2002-11-13 [AX] REQUEST FOR EXTENSION OF THE EUROPEAN PATENT TO:

- Free text: AL PAYMENT 20020905;LT PAYMENT 20020905;LV PAYMENT 20020905;MK PAYMENT 20020905;RO PAYMENT 20020905;SI PAYMENT 20020905