Countercurrent contact apparatus
Abstract
Abstract An apparatus comprising a vertical shell, first means at one end of said shell for introducing a fist fluid, second means at the other end of said shell for introducing a second fluid, at least one contact stage disposed in said shell between said first and second means, said contact stage comprising a head baffle, a set of baffles disposed above said head baffle and a set of baffles disposed below said head baffle, the baffles in each of said sets being disposed one above the other and one below the other, respectively, in a staggered relationship to each other in a direction away from the head baffle, baffles in said set of baffles above said head baffle having an edge in vertical alignment with an edge of a corresponding baffle in said set of baffles below said head baffle.
Inventors
- 👤 Arthur W Bright
Bibliographic Details
Claims Analysis
Total Claims: 5References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1975-04-25 | 1975-10-25 | 1976-04-25 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1979-04-25 | 1979-10-25 | 1980-04-25 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1983-04-25 | 1983-10-25 | 1984-04-25 | $7700.00 | Window Closed / Lapsed |