Procedure for evaluating the friction characteristics of a shouldered threaded connection
US5637806A · kind A · utility
6Cited by
2References
1Claims
0Family size
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Key dates
| Filing date | Jul 3, 1995 |
| Grant date | Jun 10, 1997 |
| Priority date | — |
| Expiry date | Jul 3, 2015 |
Classification
- Technology area (CPC E)Fixed Constructions
- CPC primaryE21B19/166
- WIPO fieldCivil engineering
- WIPO sectorOther fields
Abstract
Procedure for evaluating the parameter of actual K.sub.a total friction of a shouldered threaded connection which includes: a) making up the connection applying a general make-up torque and observing the corresponding torque/turn diagram; b) subsequently breaking out the connection observing the corresponding torque/turn diagram; c) calculating the actual K.sub.a of the connection with an appropriate equation.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.