Defrost control apparatus and method for a refrigerating system
US5251454A · kind A · utility
57Cited by
6References
4Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Jan 30, 1992 |
| Grant date | Oct 12, 1993 |
| Priority date | — |
| Expiry date | Jan 30, 2012 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T74/20486
- WIPO fieldOther consumer goods
- WIPO sectorOther fields
Abstract
A thermistor is mounted between the fins of an evaporator. The thermistor senses the temperature about the evaporator when a blow fan mounted at the evaporator is driven and when it halts. The two sensed temperatures are compared, so that when the difference of the two temperatures is below a first set value, a defrost operation starts. When the temperature about the evaporator is above a second set value, the defrost operation is completed.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.