Method and apparatus for freezing products
US6349547B1 · kind B1 · utility
5Cited by
9References
37Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jun 28, 2000 |
| Grant date | Feb 26, 2002 |
| Priority date | — |
| Expiry date | Jun 28, 2020 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF25B40/02
- WIPO fieldThermal processes and apparatus
- WIPO sectorMechanical engineering
Abstract
A method of freezing a product, which method comprises the steps of vaporizing a cryogenic liquid and warming the vapor thus formed in indirect heat exchange with a product to be frozen, work expanding the warmed vapor, and using the work expanded vapor thus obtained to refrigerate the or another product.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.