发明授权
- 专利标题: Rigid pipe connector with lock ring and method of making the same
- 专利标题(中): 具有锁环的刚性管接头及其制作方法
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申请号: US793528申请日: 1977-05-04
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公开(公告)号: US4124233A公开(公告)日: 1978-11-07
- 发明人: Arthur G. Ahlstone
- 申请人: Arthur G. Ahlstone
- 申请人地址: CA Ventura
- 专利权人: Vetco, Inc.
- 当前专利权人: Vetco, Inc.
- 当前专利权人地址: CA Ventura
- 主分类号: E02D5/52
- IPC分类号: E02D5/52 ; F16L19/07 ; F16L21/04 ; F16L21/08 ; F16L35/00
摘要:
A pipe connector has a pin initially stabbed into a box, the pin and box then being axially loaded together at confronting transverse surfaces while the pin and box are pressurized to expand the box and compress the pin, so that when the pressure is relieved a pressure energized shrink fit is provided and the connector is rendered rigid to enhance tensile, compressive and bending strength and provide a fluid tight joint useful in making up lengths of pipe such as piles and pipelines. A lock ring holds the connector against axial separation to maintain the pin under axial compression and maintain the box under axial tension.