-
公开(公告)号:US3628814A
公开(公告)日:1971-12-21
申请号:US3628814D
申请日:1970-04-24
发明人: HALLWOOD HARRY
IPC分类号: F16J15/46 , F16L7/02 , F16L17/10 , F16L21/00 , F16L55/00 , F16L58/00 , F16L59/12 , F16L59/20 , F16L11/12
CPC分类号: F16L21/005 , F16J15/46 , F16L7/02 , F16L17/10 , F16L55/00 , F16L58/00 , F16L59/12 , F16L59/20 , F16L2201/30
摘要: A joint for temporary bridging and sealing spaced ends of conduit to prevent entry of moisture under field conditions is provided by a flexible elongated plastic sleeve having inflatable circumferential collars at the ends of the sleeve.