发明名称 |
TRAPEZOIDIAL THREAD FORM HAVING A WEAR INDICATOR AND HIGH PRESSURE CONNECTION FITTING COMPRISING SAME |
摘要 |
A trapezoidal thread form includes a thread having a trapezoidal cross-sectional shape, the thread including an apex surface, two side surfaces, and a valley; and a thread wear indicator formed in one of the apex surface and one of the side surfaces. The thread wear indicator may include a v-shaped channel formed in one of the apex surface and one of the side surfaces or the thread wear indicator may include a series of material layers, each layer having a physical characteristic that is different from an adjacent material layer. The thread wear indicator indicates excessive or unsafe thread wear when the v-shaped channel is indistinguishable from the apex surface or the side surface, or when a first layer wears sufficiently to show a second layer. |
申请公布号 |
EP2831480(A1) |
申请公布日期 |
2015.02.04 |
申请号 |
EP20130716610 |
申请日期 |
2013.03.27 |
申请人 |
EMERSON PROCESS MANAGEMENT REGULATOR TECHNOLOGIES, INC. |
发明人 |
NASHERY, KHASHAYAR, A.;SCHEFFLER, DOUGLAS, J. |
分类号 |
F16L15/06 |
主分类号 |
F16L15/06 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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