Automatic defrost controller including air damper cleaning
US7174729B2 · kind B2 · utility
2Cited by
32References
10Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Sep 27, 2005 |
| Grant date | Feb 13, 2007 |
| Priority date | — |
| Expiry date | Sep 27, 2025 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T137/86734
- WIPO fieldOther consumer goods
- WIPO sectorOther fields
Abstract
A damper cleaning apparatus for a two compartment refrigerator having a damper for controlling airflow between compartments. The damper cleaning apparatus includes a damper drive mechanism for opening and closing the damper. A controller for controlling the damper drive mechanism repeats a cleaning operation at a set interval. The cleaning operation includes plural repetitions of at least partially opening the damper and then at least partially closing the damper. Optionally, the controller waits for the defrosting apparatus to be turned off and then subsequently performs the cleaning operation.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.