Sensing the amount of liquid in a vessel
US8136690B2 · kind B2 · utility
105Cited by
6References
15Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Apr 14, 2009 |
| Grant date | Mar 20, 2012 |
| Priority date | — |
| Expiry date | Jan 30, 2030 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA47G19/2227
- WIPO fieldFurniture, games
- WIPO sectorOther fields
Abstract
A vessel comprising a fluid-confining surface, a basal surface disposed below the fluid-confining surface, and a light guide. The light guide includes a first window partly defining the basal surface and a second window partly defining the fluid-confining surface, where the second window is disposed above a lowest region of the fluid-confining surface. In other embodiments, an isolating structure is provided that substantially surrounds the light guide between the first and second windows.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.