Butterfly valve
US6042083A · kind A · utility
7Cited by
3References
2Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Sep 25, 1997 |
| Grant date | Mar 28, 2000 |
| Priority date | — |
| Expiry date | Sep 25, 2017 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF16K35/025
- WIPO fieldMechanical elements
- WIPO sectorMechanical engineering
Abstract
A butterfly valve is disclosed, wherein a pair of rotating shafts for rotating a disk. One of the shafts is used to rotate the disk by 90 degree, the other is used to linearly displace the disk, thereby tightly depressing the disk on the valve seat to completely prevent the leak.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.