System and method for dispensing liquid from storage containers
US5383574A · kind A · utility
Assignee
Inventor
Key dates
| Filing date | Jul 19, 1993 |
| Grant date | Jan 24, 1995 |
| Priority date | — |
| Expiry date | Jul 19, 2013 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T137/7371
- WIPO fieldHandling
- WIPO sectorMechanical engineering
Abstract
A system for dispensing liquid from first and second containers is disclosed herein. The liquid dispensing system includes a first media transfer line, positioned in liquid-flow communication with the first container, for transferring liquid from the first container. A second media transfer line, positioned in liquid-flow communication with the second container, is disposed to transfer liquid from the second container. When placed in a first state a switchable valve prevents liquid from flowing through the first media transfer line and allows liquid to flow through the second media transfer line. In a second state the switchable valve prevents liquid from flowing through the second media transfer line while allowing liquid to flow through the first media transfer line. A liquid storage reservoir connected in liquid-flow communication with the switchable valve stores liquid received from the first and second media transfer lines by way of the switchable valve. A transfer line sensor arrangement monitors the first and second media transfer lines for the presence of liquid therein, and generates a first switching signal when liquid becomes absent from the first media transfer line and…
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.