Air-gas mixing device
Abstract
Abstract AN AIR GAS MIXING DEVICE HAVING AN ELONGATED ANNULAR FIRST MIXING CHAMBER AND AN AXIAL FLOW PASSAGE RECEIVING FLUID FROM SAID CHAMBER, A FIRST PASSAGE MEANS FOR INTRODUCING AIR INTO THE ANNULAR CHAMBER ADJACENT A FIRST END THEREOF, A SECOND PASSAGE MEANS FOR INTRODUCING GAS INTO THE ANNULAR CHAMBER ALSO ADJACENT THIS FIRST END, THE FIRST AND SECOND PASSAGES BEING ARCUATELY SPACED FROM EACH OTHER AND A SECOND MIXING CHAMBER BETWEEN THE SECOND END OF THE ANNULAR CHAMBER AND THE AXIAL FLOW PASSAGE. THE FIRST CHAMBER IS AXIALLY ADJACENT THE FLOW PASSAGE WITH THE RESULT THAT THE AIR-GAS MIXTURE FLOWING FROM THE ANNULAR CHAMBER THROUGH THE SECOND CHAMBER AND INTO THE AXIAL FLOW PASSAGE MAKES A SHARP TURN (PREFERABLY AN APPROXIMATELY 360* TURN). BECAUSE MIXING TAKES PLACE IMMEDIATELY ON INTRODUCING THE AIR AND GAS TO THE ANNULAR CHAMBER AND MIXES FURTHER IN FLOW THROUGH THE ANNULAR CHAMBER AND MIXES MORE THOROUGHLY IN FLOW THROUGH THE SECOND MIXING CHAMBER INTO THE AXIAL FLOW PASSAGE INCLUDING THE SHARP TURN, A VERY THOROUGH MIXING OF THE AIR AND GAS IS ACHIEVED IN A VERY SMALL SPACE.
Inventors
- 👤 Richard S Johnson
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) | 1974-01-11 | 1974-07-13 | 1975-01-12 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-01-11 | 1978-07-13 | 1979-01-12 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-01-11 | 1982-07-13 | 1983-01-12 | $7700.00 | Window Closed / Lapsed |