Systems for determining the volume of a volumetric chamber and pumping a fluid with a pump chamber
US6485263B1 · kind B1 · utility
241Cited by
41References
23Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jul 20, 1999 |
| Grant date | Nov 26, 2002 |
| Priority date | — |
| Expiry date | Jul 20, 2019 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T137/0396
- WIPO fieldEngines, pumps, turbines
- WIPO sectorMechanical engineering
Abstract
Reusable pump drive systems are disclosed that utilize pressurized fluids for creating a force on a flexible or moveable surface of a pump chamber of a pumping cartridge. One such system includes a variable sized orifice valve included as part of a fluid supply system, which valve is able to selectively control a fluid pressure applied to the surface of a pump chamber. Other such systems include a switch valve, which is configured to select a first or second fluid supply source within the system for applying a desired pressure to the surface of a pump chamber.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.