Bi-directional sealing ball valve
US8201574B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | Dec 11, 2009 |
| Grant date | Jun 19, 2012 |
| Priority date | — |
| Expiry date | Feb 9, 2031 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T137/0508
- WIPO fieldMechanical elements
- WIPO sectorMechanical engineering
Abstract
Embodiments and methods are disclosed herein that relate to a valve assembly. The valve assembly includes a housing having a passage formed therethrough, and a valve ball having a through hole and disposed in the housing, in which the valve ball is rotatable between an open position that has the through hole aligned with the passage and a closed position that has the through hole misaligned with the passage. The valve assembly further includes a seat having a first tapered surface and disposed in the housing adjacent to the valve ball, wherein the seat is biased towards the valve ball, and a seat holder having a second tapered surface and disposed in the housing adjacent to the seat such that the first tapered surface of the seat is disposed adjacent to the second tapered surface of the seat holder.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.