US3797810A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Gas and liquid contact apparatus
Assignee: Dr C Otto and Co GmbH
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Filing: 1970-12-03
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Granted: 1974-03-19
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Expires: 1990-12-03
Abstract
Abstract A horizontal outer ring is sealed to the inner surface of the side wall of a vertical shell. Above this ring is an upper series of vertically spaced horizontal rings decreasing in size upwardly. Above the top ring there is a horizontal top plate that is smaller than the top ring. Below the outer ring there is a lower series of vertically spaced horizontal rings decreasing in size downwardly. Provision is made for continuously delivering liquid to the top plate in the shell, and the rings are dimensioned to cause the liquid leaving the edge of the top plate to cascade down the upper series of rings over their outer edges and then down the lower series of rings over their inner edges while a gas is flowing upwardly through the shell and back and forth through the cascading liquid.
Inventors
- 👤 H Wolff
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-06 17:54
CPC Classifications
B; B01; B01D; B01D47/00; B01D3/00; B01D3/14; B01D3/16; B01D53/00; B01D53/14; B01D53/18; C; C10; C10K; C10K1/00; C10K1/08
Claims Analysis
Total Claims: 8
Claim 1
Independent Claim
234 words
In gas and liquid contact apparatus, the combination with a vertical shell having a top and bottom and provided at its lower end with a gas inlet and at its upper end with a gas outlet, of a horizontal outer ring in said shell sealed to the side wall thereof, an upper series of horizontally flat rings arranged in a vertically spaced-apart relation above said outer ring and decreasing in size upwardly, a horizontal top plate smaller than the uppermost ring and spaced above it, a lower series of horizontally flat rings arranged in a vertically spaced-apart relation between said outer ring and decreasing in size downwardly, means supporting said top plate and both series of rings in horizontally spaced planes, and means for continuously delivering a liquid to said top plate, the rings being arranged to cause liquid leaving the edge of the top plate to cascade down said upper series of rings by passing over their outer edges and vertically through the spaces between said horizontally flat rings thereof and then causing the liquid to cascade down said lower series of rings by passing over their inner edges and vertically through the spaces between said horizontally flat rings thereof, said rings in each of said series being arranged with their edges lying in a non-overlapping relationship such that said liquid cascading will be from each ring to the ring directly below it.
Claim 2
Dependent Claim
234 words
In gas and liquid contact apparatus, the combination with a vertical shell having a top and bottom and provided at its lower end with a gas inlet and at its upper end with a gas outlet, of a horizontal outer ring in said shell sealed to the side wall thereof, an upper series of horizontally flat rings arranged in a vertically spaced-apart relation above said outer ring and decreasing in size upwardly, a horizontal top plate smaller than the uppermost ring and spaced above it, a lower series of horizontally flat rings arranged in a vertically spaced-apart relation between said outer ring and decreasing in size downwardly, means supporting said top plate and both series of rings in horizontally spaced planes, and means for continuously delivering a liquid to said top plate, the rings being arranged to cause liquid leaving the edge of the top plate to cascade down said upper series of rings by passing over their outer edges and vertically through the spaces between said horizontally flat rings thereof and then causing the liquid to cascade down said lower series of rings by passing over their inner edges and vertically through the spaces between said horizontally flat rings thereof, said rings in each of said series being arranged with their edges lying in a non-overlapping relationship such that said liquid cascading will be from each ring to the ring directly below it.
Claim 3
Dependent Claim
63 words
In gas and liquid contact apparatus according to claim 1, said top plate and rings forming a unit, said apparatus including a plurality of like units disposed in vertically spaced relation, and the size of the inside of the lowermost ring in the upper unit being substantially equal to the size of the outside of the top plate in the unit below it.
Claim 4
Dependent Claim
24 words
In gas and liquid contact apparatus according to claim 1, said top plate and all of said rings being substantially concentric with said shell.
Claim 5
Dependent Claim
30 words
In gas and liquid contact apparatus according to claim 1, said rings representing annular portions of a disk having a diameter equal to the outer diameter of said outer ring.
Claim 6
Dependent Claim
22 words
In gas and liquid contact apparatus according to claim 1, said supporting means being stepped members provided with steps supporting said rings.
Claim 7
Dependent Claim
33 words
In gas and liquid contact apparatus according to claim 1, means for supplying a gas to said shell inlet at a velocity great enough to separate the cascading liquid into very fine particles.
Claim 8
Dependent Claim
50 words
In gas and liquid contact apparatus according to claim 1, said top plate and rings Forming a unit, and said supporting means being inclined strips provided with steps supporting said rings, said apparatus including a plurality of like plate and ring units disposed in vertically spaced relation in the shell.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1977-03-18 | 1977-09-17 | 1978-03-19 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1981-03-18 | 1981-09-17 | 1982-03-19 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1985-03-18 | 1985-09-17 | 1986-03-19 | $7700.00 | Window Closed / Lapsed |