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NTIS 바로가기국가/구분 | United States(US) Patent 등록 |
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국제특허분류(IPC7판) |
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출원번호 | US-0684436 (1991-04-11) |
발명자 / 주소 |
|
인용정보 | 피인용 횟수 : 11 인용 특허 : 0 |
An apparatus to provide a threaded coupling for a pipe to enable the pipe which has had its threads broken to be joined to a mating threaded pipe. The threaded coupling permits the coupling to be affixed to the pipe when the pipe is located in a difficult to reach area. The invention is used with a
An apparatus to provide a coupling for a first pipe broken at one end, said first pipe having an outer surface and a wall having a thickness into which a transverse opening has been added in said pipe wall adjacent its broken end, comprising: a pin having a shaft and a head, the shaft dimensioned to
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