Freezer with defrosting indicator
US7836710B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Nov 16, 2004 |
| Grant date | Nov 23, 2010 |
| Priority date | — |
| Expiry date | Oct 3, 2026 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01N21/552
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
A freezer includes a refrigerating surface that is capable of freezing and a measuring circuit for estimating the quantity of ice located on the refrigerating surface and for furnishing a warning signal when the estimated quantity of ice exceeds a limit value. The freezer includes a sensor sensing at least one climatic condition and a refrigerating surface periodically freezing, and a measuring circuit having at least one sensor and a time measuring device estimating a quantity of ice on said refrigerating surface based upon various factors. A warning signal is supplied when an estimated quantity of ice exceeds a predetermined limit value.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.