Patent · US Expired

System for mixing beverages

US4665809A · kind A · utility

7Cited by

9References

12Claims

0Family size

Assignees

Inventors

Matthias Aschberger · Giengen an der Brenz, DE
Karlheinz Farber · Giengen an der Brenz, DE
Ulrich Wolf · Laax, CH
Anton Deininger · Giengen an der Brenz, DE

Key dates

Filing date	Aug 22, 1985
Grant date	May 19, 1987
Priority date	—
Expiry date	Aug 22, 2005

Classification

Technology area (CPC Y)Emerging Cross-Sectional Technologies
CPC primaryY10S261/07
WIPO fieldChemical engineering
WIPO sectorChemistry

Abstract

A piston system is used as a pressure-independent flow-volume-regulating valve in which the piston divides the piston chamber into two sections which communicate with one another via a flow-throttling zone and, dependent upon pressures applied which are opposed on the piston by restoring forces, affects control orifices. The restoring force for the piston is guided over a compensating member for temperature-dependent expansions.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.