Valveless liquid dispenser
US8272537B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | Apr 6, 2009 |
| Grant date | Sep 25, 2012 |
| Priority date | — |
| Expiry date | Oct 10, 2030 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01F13/006
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
An apparatus includes a valveless cartridge assembly that has a housing with an opening at a proximal end and an outlet port for dispensing the liquid at a distal end, with the opening being configured to accept a cartridge of the liquid therethrough and communicating with an interior space of the housing. A metered dispensing device is coupled to the valveless cartridge assembly and includes a positive displacement pump in fluid communication with the interior space and the outlet port for selectively dispensing the liquid through the outlet port. The apparatus may be such that at least a portion of the metered dispensing device is disposed within the housing or it may alternatively be coupled to an exterior of the housing. The positive displacement pump may be a gear pump.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.