Gas filter device
US4135900A · kind A · utility
37Cited by
6References
11Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | May 31, 1977 |
| Grant date | Jan 23, 1979 |
| Priority date | — |
| Expiry date | May 31, 1997 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB01D46/10
- WIPO fieldChemical engineering
- WIPO sectorChemistry
Abstract
A gas filtering device of the type having a pleated filter media for filtering a gas stream passing through the media from the upstream side to the downstream side of the filter device, a peripheral frame surrounding and attached to the margin of the pleated filter media, a filter media reinforcing device comprised of an elongated rigid beam disposed within a pleat of the pleated filter media and extending the entire length of the pleat, and filter media retaining means attached to the rigid beam and extending across the downstream side of the filter media.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.