Rotary shouldered connections and thread design
US10145496B2 · kind B2 · utility
4Cited by
20References
20Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jun 11, 2015 |
| Grant date | Dec 4, 2018 |
| Priority date | — |
| Expiry date | Aug 29, 2036 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF16L15/001
- WIPO fieldMechanical elements
- WIPO sectorMechanical engineering
Abstract
A thread structure in accordance to one or more embodiments includes a thread extending helically along the cylindrical member in spaced thread turns, the thread having a crest extending between a first flank and a second flank and a root extending between the thread turns, the root having a curvature defined by a portion of an ellipse tangentially adjoining the first and second flank at respective flank transition points, the ellipse having a major axis extending parallel to the axis and a minor axis extending perpendicular to the major axis and through a root bottom.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.