Air filter system for helical scanner drum with vented drum cover
US5359475A · kind A · utility
3Cited by
32References
24Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Mar 23, 1992 |
| Grant date | Oct 25, 1994 |
| Priority date | — |
| Expiry date | Mar 23, 2012 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB01D2279/45
- WIPO fieldChemical engineering
- WIPO sectorChemistry
Abstract
The present invention concerns a filter system for a helical scanner drum of the type having a drum cover provided with an air vent. The filter system includes a replaceable air filter element for entrapping airborne particles when air is drawn through the filter element and means for removably securing the filter element to the drum cover such that the filter element covers the air vent.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.