Self-refrigerating packaging and associated actuation device
US7213401B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Feb 20, 2003 |
| Grant date | May 8, 2007 |
| Priority date | — |
| Expiry date | Aug 18, 2023 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF25D2331/805
- WIPO fieldThermal processes and apparatus
- WIPO sectorMechanical engineering
Abstract
The invention relates to self-refrigerating beverage packaging comprising: a first cavity (10) which contains a beverage; a second cavity (20) which forms a heat exchanger and which contains a refrigerating liquid and the vapour thereof; a third cavity (30) which contains means for the adsorption pumping of said vapour and means of connecting (40) the second cavity with the third cavity. The inventive packaging is characterised in that the second and third cavities are provided with a common wall (25) comprising the built-in connection means, and in that said connection means (40) comprise a check valve (42) which can withstand pressure exerted on the side of the second cavity and which opens under the effect of a force exerted on the side of the third cavity.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.