Check valve flapper
US9464724B2 · kind B2 · utility
3Cited by
2References
6Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Aug 6, 2014 |
| Grant date | Oct 11, 2016 |
| Priority date | — |
| Expiry date | Sep 23, 2034 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T137/7898
- WIPO fieldMechanical elements
- WIPO sectorMechanical engineering
Abstract
A check valve flapper for a check valve is provided and includes a flapper body and a hinge portion extending from the flapper body. The hinge portion includes a lower ear, a middle ear, and an upper ear. The lower ear, the middle ear, and the upper ear each include a hinge pin hole having a hinge pin hole diameter and an ear outer radius. A ratio of the hinge pin hole diameter to the ear outer radius is between 0.83 and 0.91.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.