Removal of gases from an enclosed space using metal hydrocarbyl oxides
US4000246A · kind A · utility
18Cited by
5References
9Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Jan 31, 1975 |
| Grant date | Dec 28, 1976 |
| Priority date | — |
| Expiry date | Jan 31, 1995 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF04B37/02
- WIPO fieldEngines, pumps, turbines
- WIPO sectorMechanical engineering
Abstract
Gases are removed from enclosed spaces by (1) purging the space to be enclosed with a reactive gas such as carbon dioxide, (2) adding a metal hydrocarbyloxide and a solid absorbent for the volatile reaction products of the reactive gas and the metal hydrocarbyloxide, e.g., a solid absorbent such as activated charcoal, and (3) enclosing the space, e.g., by hermetically sealing the container. This method for gas removal is particularly useful in the production of thermal insulating articles such as double walled vacuum containers for storage of foods and beverages.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.