Air filter assembly providing increased filtering surface area for a given volumetric size
Abstract
Abstract AN AIR FILTER ASSEMBLY SPECIFICALLY CHARACTERIZED BY PROVIDING INCREASED FILTERING SURFACE AREA FOR A GIVEN VOLUMETIC SIZE COMPRISING A SUPPORT CAGE HAVING A GENERALLY CYLINDRICAL HOLLOW BASE PORTION AND A PLURALITY OF RADIALLY EXTENDING, HOLLOW, PERFORATE PROTUBERANCE PORTIONS PROJECTING OUTWARDLY FROM THE BASE PORTION AND EXTENDING LONGITUDINALLY THEREOF, THE NUMBER OF PROTUBERANCE PORTIONS BEING RELATED TO THE DIAMETER OF THE CYLINDRICAL BASE PORTION AND BEING APPROXIMATELY BETWEEN 3-6 PROTUBERANCES PER FOOT OF DIAMETER OF THE BASE PORTION, AND FLEXIBLE FILTER MEDIA DISPOSED AROUND AND SECURE TO THE OUTSIDE SURFACE OF THE PROTUBERANCE PORTIONS FOR FILTERING A STREAM OF AIR PASSING THERETHROUGH. PREFERABLY, THE AIR FILTER AS- SEMBLY INCLUDES MEANS FOR MOUNTING THE AIR FILTER FOR ROTATION IN THE STREAM OF AIR, MEANS FOR ROTATING THE AIR FILTER IN THE STREAM OF AIR, AND IMPROVED MEANS POSITIONED IN OPERATIVE RELATIONSHIP WITH THE AIR FILTER FOR CLEANING THE FILTER MEDIA.
Inventors
- 👤 Joseph F Baigas Jr
Bibliographic Details
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| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
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| 3.5 Years (Year 4) | 1974-09-20 | 1975-03-22 | 1975-09-21 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-09-20 | 1979-03-22 | 1979-09-21 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-09-20 | 1983-03-22 | 1983-09-21 | $7700.00 | Window Closed / Lapsed |