Tubular structure and manufacturing method therefor
US11098827B2 · kind B2 · utility
0Cited by
15References
4Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jan 29, 2016 |
| Grant date | Aug 24, 2021 |
| Priority date | — |
| Expiry date | Oct 6, 2036 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF16L21/065
- WIPO fieldMechanical elements
- WIPO sectorMechanical engineering
Abstract
A tubular structure includes a tube member provided with annular protrusions, on a side of an insertion opening that is a tube end part or a receiving opening and, on an outer circumference of the tube member, ring members, arranged on an opposite side of the tube end part with respect to the annular protrusions, having two side surfaces that are vertical with respect to an axis of the tube member.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.