Apparatus for delivering fluids in proportional quantities
US5285932A · kind A · utility
Inventor
Key dates
| Filing date | Nov 15, 1991 |
| Grant date | Feb 15, 1994 |
| Priority date | — |
| Expiry date | Nov 15, 2011 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG05D11/005
- WIPO fieldHandling
- WIPO sectorMechanical engineering
Abstract
An apparatus for mixing two fluids in precise proportions which includes a quantifying meter and a concentrate meter. The apparatus also includes apparatus connecting the quantifying meter and the concentrate meter to simultaneously operate the quantifying meter and concentrate meter. The quantifying meter includes a servo plunger that is elongated and further includes a piston and a sealing member. The piston and the sealing member are axially spaced and the quantifying meter also includes a servo piston having a central bore in which the servo plunger is disposed in coaxial relationship with the piston in sealing engagement with the central bore. The servo piston includes a pressure fluid entrance port and an axially spaced outlet bore. The sealing member covers the outlet bore when the servo plunger is in a first position and the quantifying meter further includes a quantifying meter body having a bore in which the floating valve is disposed with the outer surface of the floating valve in sealing engagement with the bore in the quantifying meter body. The quantifying meter further includes a first valve apparatus and a second valve apparatus; the first valve apparatus cooperates…
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.