Title:
PACKER AND LIQUID CONVEYING PIPE HAVING IT
Document Type and Number:
Japanese Patent JP2005248631
Kind Code:
A
Abstract:
To provide a technology for a packer enabling its withdrawal from the ground together with a liquid conveying pipe, easy handling upon its expansion and a reliable sealing effect.
The packer is provided with a bag body 2 which is expansible and contractible. Since the bag body 2 itself is sealed tightly except its communication with an air supplying pipe 3, the handling upon the expansion is easy, and the reliable sealing effect is obtained due to the sufficient expansion. When an injection pipe 1 is withdrawn, the bag body 2 is withdrawable from the ground since the bag body is contracted by exhausting the air expanding the bag body 2.
Inventors:
Suzuki, Takehiko
Application Number:
JP2004000063084
Publication Date:
September 15, 2005
Filing Date:
March 05, 2004
Export Citation:
Assignee:
KANPAI CO LTD
International Classes:
E21B43/00; E02D3/12; E02D19/10; E21B33/12; (IPC1-7): E21B33/12; E02D3/12; E02D19/10; E21B43/00
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