Integrated freezer-anteroom control
US7631509B2 · kind B2 · utility
2Cited by
9References
35Claims
0Family size
Inventor
Key dates
| Filing date | Apr 27, 2005 |
| Grant date | Dec 15, 2009 |
| Priority date | — |
| Expiry date | Jun 27, 2027 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF25D2700/04
- WIPO fieldOther consumer goods
- WIPO sectorOther fields
Abstract
Frost in a freezer and/or traffic between the freezer and an anteroom is controlled. The frost is controlled by estimating a condition of the anteroom that promotes the frost in the freezer and by opening a door in the doorway in response to the estimated condition in order to supply cold air from the freezer to the anteroom. The traffic between the freezer and the anteroom is controlled by detecting the traffic approaching the doorway and by opening the door in the doorway in response to the detected traffic.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.