Automatic defrost system for a refrigerating device
US6526767B1 · kind B1 · utility
Assignee
Inventor
Key dates
| Filing date | Apr 1, 2002 |
| Grant date | Mar 4, 2003 |
| Priority date | — |
| Expiry date | Apr 1, 2022 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF25D2400/04
- WIPO fieldOther consumer goods
- WIPO sectorOther fields
Abstract
An automatic defrost system for a refrigerating device, comprising, in a cabinet, an evaporator and a condenser, and a defrost air circuit having: a first circuit portion; a second circuit portion receiving a certain defrost airflow from the first circuit portion and positioned adjacent to the condenser, in order to be heated by the latter; a third circuit portion, which is positioned adjacent to the evaporator, so as to selectively heat it when the heated defrost airflow passes through the second circuit portion and to conduct the defrost airflow to the first circuit portion; and a valve means, which selectively permits the passage of the defrost airflow from the second circuit portion to the third circuit portion.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.