Helical conveyor freezer
US5205135A · kind A · utility
Assignee
Inventor
Key dates
| Filing date | Nov 13, 1991 |
| Grant date | Apr 27, 1993 |
| Priority date | — |
| Expiry date | Nov 13, 2011 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF25D16/00
- WIPO fieldOther consumer goods
- WIPO sectorOther fields
Abstract
A food freezer for continuous freezing of food products utilizing a helical conveyor for transporting the food products through an enclosure having a first cooling zone in which the food products are cooled sufficiently to freeze the exterior surface, and a second cooling zone in which the interior of the food products are frozen. Refrigeration apparatus cools an atmosphere gas within the enclosure and baffle means directs the coldest gas through the food products in the first cooling zone and the gas from the first cooling zone is circulated to the second cooling zone where it passes across the food products in a direction opposite to the direction of travel through the second cooling zone.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.