Composite injection molded check valve with integrated features
US9334972B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | May 15, 2014 |
| Grant date | May 10, 2016 |
| Priority date | — |
| Expiry date | Sep 2, 2034 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T137/7903
- WIPO fieldMechanical elements
- WIPO sectorMechanical engineering
Abstract
A check valve includes a valve body, a pair of stoppers, a hinge pin, and one or more flappers. The valve body includes an inlet end, an outlet end, and an inner surface that defines a flow passage between the inlet end and the outlet end. The inner surface further defines a valve seat adjacent the inlet end. The stoppers are integrally formed on the valve body inner surface, and each has a first end and a second end. The hinge pin is disposed within each hinge pin opening and extends across the flow passage. The flappers are disposed within the flow passage and are rotationally mounted on the hinge pin. Each of the one or more flappers is rotatable between a closed position, in which the flapper engages the valve seat, and a full-open position, in which the flapper engages the pair of stoppers.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.