Fluid flow regulation system
US6874503B2 · kind B2 · utility
20Cited by
16References
5Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Jun 25, 2002 |
| Grant date | Apr 5, 2005 |
| Priority date | — |
| Expiry date | Sep 16, 2022 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T137/2657
- WIPO fieldMedical technology
- WIPO sectorInstruments
Abstract
A fluid flow regulation system has an inlet, an outlet, and an adjustable flow regulator connected between the inlet and the outlet. The regulator has a closed position at which a leakage gas flow through the system is established. An extraction device is provided for fluid connection with one or both of the inlet and the outlet and is operable to extract fluid to provide a zero or negative flow from the outlet when the flow regulator is in the closed position.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.