Gas purifier having end of life detector
US5151251A · kind A · utility
6Cited by
3References
7Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | May 20, 1991 |
| Grant date | Sep 29, 1992 |
| Priority date | — |
| Expiry date | May 20, 2011 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10S55/34
- WIPO fieldChemical engineering
- WIPO sectorChemistry
Abstract
A gas purifier for impure gas is provided with a sensor of the end of useful life. The purifier has a housing completely filled with a gas sorbing material. The gas sorbing material is capable of reacting with the impurities contained within the impure gas. This reaction results in an expansion of the gas sorbing material which thereby causes the housing to expand. The purifier also has an impure gas inlet and a purified gas outlet as well as a strain gauge carried by the housing and means for determining the strain on the strain gauge thus determining the end of useful life of the gas sorbing material.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.