Apparatus and methods for cryogenic treatment of materials
US5715688A · kind A · utility
Inventor
Key dates
| Filing date | May 28, 1996 |
| Grant date | Feb 10, 1998 |
| Priority date | — |
| Expiry date | May 28, 2016 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF25D2400/30
- WIPO fieldFood chemistry
- WIPO sectorChemistry
Abstract
A device and method for freezing or cooling of food or other items using cryogenic and low temperature coolants is provided. The device includes a coolant container which contains the cryogenic or low temperature coolant. The device will also include a freezing compartment with a lower surface which is immediately adjacent to the coolant container. The coolant container includes a valve for controlling the pressure within the coolant container, and thereby control the temperature of the coolant. When the materials to be cooled are placed in the freezing compartment the coolant will absorb heat from the materials via the lower surface and some of the coolant will vaporize. In a preferred embodiment the device includes a system for collecting the vapors thus created.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.