Method and apparatus for freezing products
US4914927A · kind A · utility
20Cited by
12References
19Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jan 25, 1989 |
| Grant date | Apr 10, 1990 |
| Priority date | — |
| Expiry date | Jan 25, 2009 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF25D2331/807
- WIPO fieldFood chemistry
- WIPO sectorChemistry
Abstract
A freezer (1) which comprises a drum (2) is characterized in that a cylinder (12) is disposed in said drum (2), and a fan (14) is provided for circulating cryogen through the space (20) between the outer surface of the cylinder (12) and the inner surface of the drum (2). The outer surface of the drum (2) is provided with a plurality of grooves (4) of parabolic cross-section. In use, droplets (23) of liquid egg are dropped on to the grooves (4) where they freeze individually. The frozen particles fall away from the drum as they approach the lowermost point of travel of the drum (2) and form an attractive granular product.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.