Coupling ring for ventilation ducts, and method of connecting ventilation ducts
US6758502B2 · kind B2 · utility
16Cited by
16References
15Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jan 17, 2001 |
| Grant date | Jul 6, 2004 |
| Priority date | — |
| Expiry date | Jan 17, 2021 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF16L23/036
- WIPO fieldMechanical elements
- WIPO sectorMechanical engineering
Abstract
A flanged coupling ring for a duct element has a mounting section configured to be mounted or a connection portion of the duct element, and flange means extending outwards from the mounting section. The flange means has, along its periphery, flanged coupling portions for connecting two duct elements, each of which is provided with a coupling ring, by means of external coupling means configured to engage with the flanged coupling portions.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.