Method of chilling materials and chilling container
US4457142A · kind A · utility
Assignee
Inventor
Key dates
| Filing date | Oct 13, 1982 |
| Grant date | Jul 3, 1984 |
| Priority date | — |
| Expiry date | Oct 13, 2002 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF25D3/125
- WIPO fieldOther consumer goods
- WIPO sectorOther fields
Abstract
A chilling container includes a chilling agent chamber and a chilled goods chamber. The chilling agent chamber is sealed shut to contain e.g. dry ice, is highly insulated from the outside, and is connected by a pressure passage system to the chilled goods chamber which has an opening to the outside and a door. The chilling agent is vaporized in the chilling agent chamber by removal of the heat. A pressure drop occurs and therewith a forced movement with a forced circulation of the vaporized gases into the chilled goods chamber. A wall containing the pressure passage system is cooler and is opposite the door causing convection circulation which reinforces the forced circulation. A wall separating the chambers is relatively highly heat conductive.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.