Air filter
US4253855A · kind A · utility
16Cited by
13References
7Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Feb 26, 1979 |
| Grant date | Mar 3, 1981 |
| Priority date | — |
| Expiry date | Feb 26, 1999 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB01D46/26
- WIPO fieldChemical engineering
- WIPO sectorChemistry
Abstract
An air filter having a counter rotating drum, i.e., the rotation of the drum is opposite the tangential intake of air. The intake air has about 1 lb. of rock wool fibers per 10.sup.7 cu. ft. of air sometimes at about 100% relative humidity. The fibers are doffed from the drum by suction nozzle which are adjacent to the drum at the bottom of the filter housing. The drum screen is cleaned by periodically jetting hot dry air at 120 psig through the screen into the suction nozzles.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.