Threaded connection comprising at least one threaded element with an end lip for a metal tube
US9605781B2 · kind B2 · utility
Assignees
Inventors
Key dates
| Filing date | Nov 3, 2008 |
| Grant date | Mar 28, 2017 |
| Priority date | — |
| Expiry date | Apr 21, 2030 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T409/303752
- WIPO fieldMechanical elements
- WIPO sectorMechanical engineering
Abstract
A threaded tubular connection includes a female threaded portion at a first tubular component end and a male threaded portion at a second tubular component end, the female threaded portion including a female thread, at least one female sealing surface on its inner peripheral surface, and at least one female axial abutment surface, the male threaded portion including a male thread, at least one male sealing surface on its outer peripheral surface, at least one axial abutment surface, and a lip disposed between the sealing surface and an axial abutment surface located at a free end of the threaded portion distant from the thread, the male thread being made up into the female thread such that at least one male axial abutment surface is in contact with at least one female axial abutment surface, at least one male sealing surface being in interference contact with at least one corresponding female sealing surface, the portion of the lip between the sealing surface and the axial abutment surface being radially distant from a corresponding surface of the other threaded portion, at least one leak channel being provided in one of the threaded portions to place the chamber formed between the…
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.