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NTIS 바로가기국가/구분 | United States(US) Patent 등록 |
---|---|
국제특허분류(IPC7판) |
|
출원번호 | US-0898515 (1986-08-21) |
발명자 / 주소 |
|
인용정보 | 피인용 횟수 : 25 인용 특허 : 0 |
A well casing penetrator includes an elongated housing enclosing an outwardly movable hydraulic driven punch for cutting an opening in a casing. A high pressure liquid jet nozzle is mounted on the end of a hose which moves outwardly through an axial bore in the punch when extended through the casing
A punch member for providing an opening in a heavy workpiece such as a metal tube or sheet, said punch member comprising an elongated member having a generally cylindrical outer surface and curved cutting edge surfaces on one end of said generally cylindrical outer surface for initiating the provisi
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