Cold rolling devices and cold rolled rotary shouldered connection threads
US10160033B2 · kind B2 · utility
1Cited by
20References
10Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jun 11, 2015 |
| Grant date | Dec 25, 2018 |
| Priority date | — |
| Expiry date | Nov 6, 2035 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB23G9/009
- WIPO fieldMachine tools
- WIPO sectorMechanical engineering
Abstract
A method of cold rolling a thread on a tubular support member of a rotary shouldered thread connection includes obtaining an original root depth of a thread root, cold rolling the thread until a minimum increased root depth tolerance is achieved. The thread may be cold rolled with a wheel tip having an elliptical profile.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.