Dual flow tunnel freezer
US5517827A · kind A · utility
0Cited by
8References
5Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Nov 2, 1994 |
| Grant date | May 21, 1996 |
| Priority date | — |
| Expiry date | Nov 2, 2014 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF25D3/11
- WIPO fieldOther consumer goods
- WIPO sectorOther fields
Abstract
The present invention is a tunnel freezer which incorporates a "dual flow" design whereby the refrigerant is introduced at each end of the tunnel and withdrawn from the middle of the tunnel. A key to the present invention is that the dual flow design allows one to confine the pressure gradient for leaks between the ends of the tunnel where it will not be a concern since the item entrance and exit ports (which ports provide a ready access for leaks) are located at the ends of the tunnel.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.