Butterfly valve assembly incorporating a unitary shaft and butterfly plate valve element
US8459609B2 · kind B2 · utility
0Cited by
15References
7Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Dec 28, 2009 |
| Grant date | Jun 11, 2013 |
| Priority date | — |
| Expiry date | Dec 25, 2031 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF16K1/222
- WIPO fieldMechanical elements
- WIPO sectorMechanical engineering
Abstract
A butterfly valve assembly includes a unitary flow body and a unitary valve element. The unitary valve element is rotationally mounted within the flow body and includes a rotationally mounted shaft and a butterfly plate that is formed integral to the shaft. The butterfly valve assembly can withstand the maximum drive torque supplied from an associated actuator, while at the same time meeting a desired level of flow performance, and allows the unitary valve element to be installed up through the pilot bore.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.