Remotely dismountable valves
US4306583A · kind A · utility
3Cited by
0References
3Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Dec 26, 1979 |
| Grant date | Dec 22, 1981 |
| Priority date | — |
| Expiry date | Dec 26, 1999 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T137/7668
- WIPO fieldMechanical elements
- WIPO sectorMechanical engineering
Abstract
The present invention relates to novel remotely dismountable valves comprising a valve body welded to the pipes and having a truncated seat, an outwardly truncated member fitting on said seat, an obturator whose movements may be remotely controlled due to an extension element and a heavy element made fast with the member via a cross-piece presenting an upper surface in the form of a segment of a sphere on which surface the likewise spherical surface of the lower face of said heavy element abuts.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.