Internal air damper for a combination refrigerator-freezer
US5018364A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Jan 22, 1990 |
| Grant date | May 28, 1991 |
| Priority date | — |
| Expiry date | Jan 22, 2010 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF25D2400/06
- WIPO fieldControl
- WIPO sectorInstruments
Abstract
An internal air damper for a combination refrigerator-freezer which serves to maintain a preset and/or desired temperature within the refrigerator by selective passage of colder air from the freezer. The arrangement is in the form of a rotatable baffle or door which opens in response to a temperature demand. The amount of colder air passage can be made available through either of two modes, i.e. by stopping the baffle at an open position to allow cool air flow into the refrigerator until the thermostat is satisfied, and, prior to reaching a freezing thermostat temperature, reenergizing the motor for baffle movement to closed position, or moving the baffle to an open position, and continuing baffle movement for gradual and better distribution of the colder air until the thermometer is satisfied and the baffle stops at a closed position.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.