Method and apparatus for controlling the atmosphere of an essentially closed space
US5860857A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | May 13, 1996 |
| Grant date | Jan 19, 1999 |
| Priority date | — |
| Expiry date | May 13, 2016 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02B30/70
- WIPO fieldThermal processes and apparatus
- WIPO sectorMechanical engineering
Abstract
The invention relates to a method for regulating the atmosphere in a substantially closed sports/exercise space (1) or an animal shelter (11), especially in terms of partial oxygen pressure. In the method, the normal atmosphere of said space (1; 11) is admixed with nitrogen for the creation of a desired low-oxygen (oxygen content <appr. 21%) atmosphere, said low-oxygen atmosphere corresponding to partial oxygen pressure in the air at a certain altitude above sea level. Alternatively, said normal atmosphere is admixed with oxygen for the creation of a desired high-oxygen (oxygen content>appr. 21%) atmosphere. Said mixing of nitrogen or oxygen with air is carried out at normal air pressure.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.