Time indicator device
US8104949B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Sep 26, 2008 |
| Grant date | Jan 31, 2012 |
| Priority date | — |
| Expiry date | Feb 5, 2029 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG04F1/00
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
A time indicator device comprised of first and second interconnected reservoirs containing first and second liquids respectively. A first barrier is provided between said first and second liquids to prevent said liquids mixing. Said first barrier is connected via a conduit to a third reservoir containing a third liquid which is adapted to pass along said conduit over a first predetermined time period and to effect removal of said first barrier upon contact to facilitate mixing of said first and second liquid and generation of a liquid mixture within the second reservoir of different color to the second liquid prior to mixing and thereby provide an indication of when said first predetermined time period has elapsed.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.