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公开(公告)号:US3699690A
公开(公告)日:1972-10-24
申请号:US3699690D
申请日:1971-05-28
Applicant: MICHAEL WATTER
Inventor: WATTER MICHAEL
Abstract: A method of supporting oil pipe beneath the ground by pneumatic inflated sections. The pneumatic inflated sections may be half sections shaped to receive the pipe.
Abstract translation: 通过气动膨胀部分在地下支撑油管的方法。 气动膨胀部分可以是成形为接收管道的半部分。