Aircraft water heating tank air vent valve
US9903503B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Nov 16, 2015 |
| Grant date | Feb 27, 2018 |
| Priority date | — |
| Expiry date | Jan 8, 2036 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF16K27/0245
- WIPO fieldMechanical elements
- WIPO sectorMechanical engineering
Abstract
An aircraft water heating tank air vent valve includes an air vent valve housing having an upper vent valve body and a lower valve adapter sealingly mated together to define an interior chamber. A tubular collar is disposed within the interior chamber between an upper planar valve seat member and a lower notched valve seat member, and a ball float is movable within the tubular collar between first and second positions seated on the upper planar valve seat member or the lower notched valve seat member, respectively. The lower notched valve seat member includes oblique notches and frustoconical projections providing upper shoulders upon which the tubular collar is positioned, and providing outwardly flaring radially inner oblique edges upon which the ball float can be seated.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.