Apparatus for collecting contaminants from gases
Abstract
Abstract 1,247,906. Gas scrubber. NATIONAL DUST COLLECTOR CORP. 14 Aug., 1968 [25 Sept., 1967], No. 38878/68. Heading B1R. Hot furnace gases rising in a stack 12b are scrubbed in a chamber 14 having a conical baffle 50. above the upper end of the stack, the baffle having a depending flange 54 above an annular trough 34 and spray nozzles 72 above it to provide a curtain of liquid through which the gases pass to an outlet 32. As shown the baffle 50 can be lowered into a position to seal off the chamber 14 and the gases led off through a conduit 80 for alternative treatment. In another embodiment the conical baffle is fixed and the outlet can be closed, the chamber having a conduit to lead off the diverted gases for alternative treatment.
Inventors
- 👤 Daniel D Drum
Bibliographic Details
Claims Analysis
Total Claims: 0References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1972-03-10 | 1972-09-09 | 1973-03-11 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1976-03-10 | 1976-09-09 | 1977-03-11 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1980-03-10 | 1980-09-09 | 1981-03-11 | $7700.00 | Window Closed / Lapsed |