Rotary plate valve having seal anti-herniation structure
US11684169B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Nov 9, 2020 |
| Grant date | Jun 27, 2023 |
| Priority date | — |
| Expiry date | Nov 9, 2040 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61G2203/20
- WIPO fieldFurniture, games
- WIPO sectorOther fields
Abstract
A mattress overlay apparatus is provided for use with a mattress. The mattress overlay apparatus includes an overlay configured for placement atop the mattress and having a plurality of inflatable bladders, a blower, and first and second rotary plate valves pneumatically coupled to the plurality of bladders and the blower. The first and second rotary plate valves are arranged in series between the plurality of bladders and the blower. The first and second rotary plate valves and the blower are operated to provide the overlay with percussion and vibration (P&V), left and right turn assist, and microclimate management (MCM) functionality.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.