Check valve flapper with reduced moment of inertia and method of making
US11105425B2 · kind B2 · utility
4Cited by
10References
17Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Apr 5, 2019 |
| Grant date | Aug 31, 2021 |
| Priority date | — |
| Expiry date | Jun 10, 2039 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T137/7898
- WIPO fieldMechanical elements
- WIPO sectorMechanical engineering
Abstract
A check valve includes a valve seat defining an aperture and a seating surface. A flapper is a single homogeneous component having a contact surface and a filler portion. The flapper is pivotally movable relative to the valve seat between a valve closed position in which the contact surface is sealably engaged to the seating surface thereby occluding flow through the aperture, and a valve open position in which the contact surface is a distance from the seating surface. The filler portion has a plurality of voids such that a density of the flapper is lower than if the voids were not present. A method is also disclosed.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.