Air cleansing system for cooking ranges
Abstract
Abstract AN AIR CLEANING SYSTEM FOR COOKING RANGES AND THE LIKE, ADAPTED TO REMOVE HEAT AND CONTAMINANTS SUCH AS GREASE-LADEN FUMES GENERATED FROM THE HEATING SURFACES OF SUCH RANGES, PROVIDING AN EXHAUST DUCT EXTENDED FROM A POSITION ADJACENT TO SAID HEATING SURFACE AT WHICH IT HAS AN INTAKE OPENING TO A REMOTE EXHAUST OPENING, SAID DUCT HAVING A CONSTRICTED PORTION OF THE DUCT, AND A PAN DISPOSED MEANS FOR DRAWING FUMES IN THE INTAKE OPENING FOR DISCHARGE FROM THE EXHAUST OPENING, A SPRAY BNATH LOCATED AT THE CONSTRICTED PORTION OF THE DUCT, AND A PAN DISPOSED BELOW THE BATH TO COLLECT SPRAY THEREFROM TOGETHER WITH CONTAMINANTS DISSOLVED THEREIN. THE STREAM OF AIR GENERATED THROUGH THE DUCT IS CLEANSED BY THE WASHING ACTION OF THE SPRAY BATH, THE COOLING EFFECT THEREOF RESULTING IN CONDENSATION OF VOLATILE CONTAMINANTS, AND BY SUCCESSIVE HUMIDIFICATION AND DEHUMIDIFICATION OF THE STREAM. THE INVENTION ALSO HAS TO DO WITH A UNIQUE FORM OF TRAP HAVING PARTICULARLY SIGNFICANT UTILIZATION IN THE SYSTEM.
Inventors
- 👤 Donald D Jensen
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) | 1974-11-01 | 1975-05-03 | 1975-11-02 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-11-01 | 1979-05-03 | 1979-11-02 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-11-01 | 1983-05-03 | 1983-11-02 | $7700.00 | Window Closed / Lapsed |