Precise volume fluid dispenser
US5568882A · kind A · utility
Assignee
Inventor
Key dates
| Filing date | Feb 3, 1995 |
| Grant date | Oct 29, 1996 |
| Priority date | — |
| Expiry date | Feb 3, 2015 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01F23/168
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
A fluid dispenser for measuring precise volumes of a fluid for later mixing with other materials which has a pressure vessel for receiving a fluid supplied from a supply tank, a bubbler sensor communicating with the pressure vessel for correlating pressure within a bubbler tube with volume in the pressure vessel so that a controller in communication with the bubbler sensor can control the inflow and outflow of precise volumes of the fluid through the pressure vessel. The bubbler robe is received within the pressure vessel and is monitored by a pressure transducer which communicates with the controller so that a plurality of solenoid valves can control the inflow and outflow of the measured fluid.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.