Electronic air filter means
Abstract
Abstract AN ELECTRONIC AIR FILTER MEANS INCLUDING DUCT MOUNTED AIR FILTER STRUCTURES AND WALL MOUNTED AIR FILTER STRUCTURES, EACH ADAPTED TO RECEIVE AIR FLOW THROUGH A PRE-FILTER ASSEMBLY, A PLURALITY OF IONIZER ASSEMBLIES, PARTICLE COLLECTOR MEANS, AFTER-FILTER AGGLOMERATOR ASSEMBLY, AND UTILIZING CONTROL MEANS TO PROVIDE POWER FOR THE PROPER CHARGING OF FOREING PARTICLES WITHIN THE AIR FOR REMOVING THE SAME ON PASSAGE THERETHROUGH. MORE PARTICULARLY, DISCLOSED IS AN AIR FILTERING MEANS HAVING MODULAR ELECTROSTATIC PRECIPITATOR MEANS OPERABLE TO SEPARATE FOREING PARTICLES FROM A GIVEN AIR FLOW THERETHROUGH, THE PRECIPITATOR MEANS HAVING IONIZER UNITS AND PARTICLE COLLECTOR UNITS READILY REMOVABLE FOR SERVICE AND MAINTENANCE WITH A MINIMUM AMOUNT OF TIME AND EFFORT REQUIRED.
Inventors
- 👤 George H Cardiff
Bibliographic Details
Claims Analysis
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1974-12-13 | 1975-06-14 | 1975-12-14 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-12-13 | 1979-06-14 | 1979-12-14 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-12-13 | 1983-06-14 | 1983-12-14 | $7700.00 | Window Closed / Lapsed |