发明名称 |
Pressure bag and method of lining branch pipe |
摘要 |
A pressure bag is used to line a branch pipe, wherein a heat medium hose can be securely pulled with an everting force of a branch pipe liner bag to stably line the branch pipe. The pressure bag has one end closed by an end collar for containing the branch pipe liner bag. The end collar is formed with a hot water supply port and a hot water discharge port, as well as a sealing member for slidably supporting a pull rope or a belt extending therethrough in an air-tight seal. A hot water supply pipe in communication with the hot water supply port is disposed within the end collar, and a flexible hot water hose is attached to the hot water supply pipe. The hot water hose is folded and contained in the pressure bag. A head collar comprising a head collar push-up lever is attached to the end of the pressure bag opposite to the end to which the end collar is attached. |
申请公布号 |
US2004020544(A1) |
申请公布日期 |
2004.02.05 |
申请号 |
US20030406823 |
申请日期 |
2003.04.03 |
申请人 |
KAMIYAMA TAKAO;YOKOSHIMA YASUHIRO |
发明人 |
KAMIYAMA TAKAO;YOKOSHIMA YASUHIRO |
分类号 |
F16L55/165;(IPC1-7):F16L55/16 |
主分类号 |
F16L55/165 |
代理机构 |
|
代理人 |
|
主权项 |
|
地址 |
|