Valve assembly for a float valve
US9873321B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | Oct 17, 2013 |
| Grant date | Jan 23, 2018 |
| Priority date | — |
| Expiry date | Oct 17, 2033 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T137/7404
- WIPO fieldMechanical elements
- WIPO sectorMechanical engineering
Abstract
A valve assembly, that may be used on and/or retrofitted to various float valves, comprising: a relief valve configured to be movable between a closed position and an open position allowing pressure from a container to be relieved through at least one relief hole; a breather float configured to be movable between an open position allowing gas to pass through at least one breather hole and a closed position that substantially prevents liquid from passing through the at least one breather hole; and at least one of: a check valve that is movable between a closed position and an open position allowing gas to be relieved from the container when the container is being filled with liquid; and a breather check valve that is movable between a closed position and an open position allowing filter gas to enter the container when liquid is being removed from the container.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.