EP 0397716 B1 19930526 - INJECTION DEVICE FOR INTRODUCING FLUIDS UNDER PRESSURE INTO CRACKED STRUCTURES
Title (en)
INJECTION DEVICE FOR INTRODUCING FLUIDS UNDER PRESSURE INTO CRACKED STRUCTURES
Publication
Application
Priority
- DE 8800387 U 19880115
- DE 8810323 U 19880816
Abstract (en)
[origin: WO8906731A1] An injection device for introducing fluids, in particular cement suspensions, under pressure into a hole drilled in cracked structure, for example of concrete or masonry, comprises an injection packer (22) with a through channel (24) which connects an outer inlet region (26) with an outlet region (28), and a coupling device (20) connected to the injection packer (22) for connecting the inlet region (26) to a conduit containing the pressurized injection fluid. The sliding coupling device (20) has a radial pocket (36) adjacent to an outlet part (58) of an orifice for the passage of fluid. The outer inlet region (26) of the injection packer (22) has a disc (30) which projects radially beyond the adjacent region (72) of the injection packer (22) and whose shape matches that of the pocket (36).
IPC 1-7
IPC 8 full level
E04G 23/02 (2006.01); E21B 33/12 (2006.01); E21D 9/00 (2006.01); E21D 20/02 (2006.01)
CPC (source: EP)
E04G 23/0203 (2013.01); E04G 23/0211 (2013.01); E21B 33/12 (2013.01)
Designated contracting state (EPC)
AT BE CH DE FR GB LI
DOCDB simple family (publication)
DE 8810323 U1 19890119; DE 58904508 D1 19930701; EP 0397716 A1 19901122; EP 0397716 B1 19930526; WO 8906731 A1 19890727
DOCDB simple family (application)
DE 8810323 U 19880816; DE 58904508 T 19890114; DE 8900018 W 19890114; EP 89901263 A 19890114