Gas separation device and method of use
US7517385B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | Apr 6, 2006 |
| Grant date | Apr 14, 2009 |
| Priority date | — |
| Expiry date | Jun 19, 2027 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10S251/903
- WIPO fieldMechanical elements
- WIPO sectorMechanical engineering
Abstract
A gas separation device for separating oxygen gas from air includes a compressor; a concentrator; a measurement mechanism; and a flow control mechanism that includes a valve assembly for providing fluid flow control, the valve assembly having a motor; a valve body; and a plunger within the valve body and reciprocally driven by the motor, wherein the valve body including a fluid inlet, a fluid outlet, and a flow chamber therebetween, the flow chamber including a flow chamber wall and a flow chamber outlet, the plunger including a flexible member reciprocating within the flow chamber outlet to provide variable flow control therethrough, the flexible member including a lip seal engageable with the flow chamber wall during reciprocation of the plunger and flexible member to provide a seal therebetween.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.