发明名称 |
Method and apparatus for cleaning tubular structures |
摘要 |
Removal of foreign objects from tubular structures is accomplished by inserting a pressurizable tube with an expandable end chamber into the tubular structure past the position of the foreign object, forming a seal within the interior of the structure by expanding the end chamber, and withdrawing the tube to remove the obstruction. If desired, cleansing of the inner surface of the structure can be achieved by feeding a cleaning substance into the tube as it is being withdrawn.
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申请公布号 |
US4021265(A) |
申请公布日期 |
1977.05.03 |
申请号 |
US19750637742 |
申请日期 |
1975.12.04 |
申请人 |
BELL TELEPHONE LABORATORIES, INCORPORATED |
发明人 |
GUENTHER, ROBERT PATRICK |
分类号 |
B08B9/02;B08B9/043;(IPC1-7):B08B9/02 |
主分类号 |
B08B9/02 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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