Enhanced filter indicatior for refrigerator
US8337693B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | Mar 10, 2006 |
| Grant date | Dec 25, 2012 |
| Priority date | — |
| Expiry date | Nov 2, 2029 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF25D2400/36
- WIPO fieldOther consumer goods
- WIPO sectorOther fields
Abstract
An indicator for a refrigerator filter which has a body configured to contain a replaceable filter cartridge and including an openable cap to enclose the filter cartridge within the body. The indicator includes a control having a filter life determination mechanism and arranged to emit a signal when a life of the filter cartridge is determined to be expired. A visual display is arranged in association with the body which comprises an illuminating component which illuminates upon receipt of the signal from the control, graphics positioned in association with the body, and a light pipe extending from the graphics towards the illuminating component to transmit light from the illuminating component to the graphics.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.