Scupper valve
US11686392B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Jan 31, 2022 |
| Grant date | Jun 27, 2023 |
| Priority date | — |
| Expiry date | Jan 31, 2042 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB63B13/00
- WIPO fieldMechanical elements
- WIPO sectorMechanical engineering
Abstract
A scupper valve includes a frame and a rigid flapper coupled to the frame. The rigid flapper is configured to swing relative to the rigid frame between an open and closed position. A flexible annular seal defines a centrally-disposed circular opening and a first annular projection that surrounds the centrally-disposed opening. The rigid flapper, in the closed position, contacts a distal edge of the first annular projection to create a circular line contact that restricts or prevents fluid flow through the centrally-disposed circular opening in the flexible annular seal. A rigid annular backplate is adjacent to and in direct physical contact with an annular surface of the flexible seal on a side of the flexible seal opposite the rigid flapper.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.