Threaded connections for tubular members
US11204115B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | Jul 19, 2019 |
| Grant date | Dec 21, 2021 |
| Priority date | — |
| Expiry date | Feb 24, 2040 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF16L25/021
- WIPO fieldMechanical elements
- WIPO sectorMechanical engineering
Abstract
A tubular member for threadably engaging another tubular member to form a tubular string includes a first end including a helical female thread formed in an outer surface of the tubular member, wherein the female thread includes a slot extending radially inwards from the outer surface, and a root extending radially inwards from the slot, wherein the root has a maximum width that is greater than a maximum width of the slot, a second end opposite the first end and including a helical male thread formed on an inner surface of the tubular member, wherein the male thread includes a shank extending radially outwards from the inner surface, and a notch extending radially outwards from the shank, wherein the notch has a maximum width that is greater than a maximum width of the shank.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.