Gate valve
US9500284B2 · kind B2 · utility
0Cited by
8References
17Claims
0Family size
Inventors
Key dates
| Filing date | Jun 26, 2015 |
| Grant date | Nov 22, 2016 |
| Priority date | — |
| Expiry date | Jun 26, 2035 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF16K3/0272
- WIPO fieldMechanical elements
- WIPO sectorMechanical engineering
Abstract
A gate valve is provided with a flapper mechanism that is disposed in the main body of the valve and automatically works to seal and isolate the main body of the valve from a bonnet. The bonnet is isolated without any manual function or operation. When the flapper valve is in a closed position, the bonnet, gate and gate actuating mechanism can be removed from the gate valve body without isolating the gate valve. This enables the bonnet and associated components to be repaired or replaced while water or fluid under pressure continues to flow through the main body of the gate valve.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.