Outlet check valve for fluid bladders
US7261525B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | Aug 30, 2005 |
| Grant date | Aug 28, 2007 |
| Priority date | — |
| Expiry date | Aug 30, 2025 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF04B53/1062
- WIPO fieldEngines, pumps, turbines
- WIPO sectorMechanical engineering
Abstract
A manually operated pump having a pump assembly and a check valve. The pump assembly includes a dome with a fluid inlet. A support plate is sealed to the dome to define a fluid chamber. The support plate includes a fluid outlet. A foam material is positioned in the fluid chamber, the foam material expanding the dome to a rest state upon release of external pressure on the dome. The check valve has a valve inlet in fluid communication with the fluid outlet of the support plate. The check valve is positioned outside of the fluid chamber. The check valve has at least one exhaust channel to provide one way fluid flow from the fluid chamber through the exhaust channel.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.