Continuously adjustable diluting device for mixing predetermined volumes of liquid
US5018394A · kind A · utility
Inventor
Key dates
| Filing date | Jan 10, 1990 |
| Grant date | May 28, 1991 |
| Priority date | — |
| Expiry date | Jan 10, 2010 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01N2001/382
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
A continuously adjustable liquid mixing device for intermixing selectively adjustable volumes of several liquids comprises a body for holding a plurality of volumes of the liquids including a recess at an upper end. A mechanism is provided for drawing up the volumes of liquid into the body and thereafter expelling the same from a lower end. A volume adjusting selecting mechanism is provided for at least one of the volumes including a rotary element mounted in the recess and frictionally engaging a wall surface thereof for retaining a selected volume that is desired. A rotary drive system is provided for rotating the volume adjustment mechanism and is readily accessible externally of the body for convenient manipulation to select a desired volume. The drive system is movable between an outer operating position for easy manipulation and a retracted position when not in use.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.