Frost control system for a door
US6226995A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Jun 15, 1999 |
| Grant date | May 8, 2001 |
| Priority date | — |
| Expiry date | Jun 15, 2019 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF25D13/00
- WIPO fieldOther consumer goods
- WIPO sectorOther fields
Abstract
A frost control system for preventing the accumulation of frost on components of a freezer door assembly is disclosed. The system comprises a movable door disposed between a cold space and a warm space, and a header assembly. The header assembly comprises an air mover and an air inlet adapted for drawing air from the cold space to an inlet of the air mover. A conduit is provided for conducting air from an outlet of the air mover to a region of the warm space proximate to the door, and a thermostatically-controlled heater is disposed within the conduit. The conduit includes a heated air exhaust vent. Also provided is control circuitry for managing the operation of the heater and air mover.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.