Title:
DISPOSABLE TUBUAR BORE CLOSING MEMBER
Document Type and Number:
Japanese Patent JPS60159211
Kind Code:
A
Abstract:
A disposable tubular borehole plug for the injection particularly of media suitable for rock solidification, such as for example synthetic resin, comprises substantially a filling pipe (1) adapted to be assembled from portions and having at the tip a safeguard against reflux, in the form of a non-return valve (5), a mixing element and a sealing element (2) mounted at the ends in metal sleeves (11, 12) and formed as a portion of tubing of elastic material. The filling pipe (1), within the area enclosed by the sealing element (2), is additionally provided with a valve (8) and in that during injection, the sealing element (2) becomes automatically clamped and sealing-tight as a function of the differential pressure built up by the valves (5, 8).
Inventors:
FURANKU MAIYAA
OTSUTOO ERUNSUTO GUREESUMAN
BUARUTAA MARUSHIYU
OTSUTOO ERUNSUTO GUREESUMAN
BUARUTAA MARUSHIYU
Application Number:
JP998285A
Publication Date:
August 20, 1985
Filing Date:
January 24, 1985
Export Citation:
Assignee:
BERGWERKSVERBAND GMBH
International Classes:
E02D3/12; E21B33/127; E21B34/06; E21F17/00; (IPC1-7): E02D3/12; E21F17/00
Attorney, Agent or Firm:
Toshio Yano