US4603022A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Gas-liquid contactor
Assignee: Mitsubishi Heavy Industries Ltd
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Filing: 1979-08-15
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Granted: 1986-07-29
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Expires: 1999-08-15
Abstract
Abstract In a tray-type gas-liquid contactor, such as a distillation, rectification, or absorption column, in which mass transfer is effected between gas and liquid through a gas-liquid contact, the height of both wing parts of a weir provided along the periphery of the tray is made not less than 1.2 times that of the central part so that, when the contactor is installed, for example, on a floating offshore structure, the performance of the apparatus is not adversely affected by an inclination or oscillating motion.
Inventors
- 👤 Kenichi Yoneda
- 👤 Mamoru Tamai
- 👤 Masatoshi Katayama
- 👤 Takeyasu Watanabe
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 10:13
CPC Classifications
B; B01; B01D; B01D3/00; B01D3/14; B01D3/16; B01D3/18; B01D3/20; B01D3/205; Y; Y10; Y10S; Y10S203/00; Y10S203/25
Claims Analysis
Total Claims: 4
Claim 1
Independent Claim
192 words
A gas-liquid contactor mounted on an oscillating base having at least one tray mounted in a cylindrical body, said tray being formed with a periphery and a plurality of holes fitted with tray caps for the passage of gas therethrough, said cylindrical body being formed with inner and outer wall surfaces, the tray being formed and mounted in such a manner that a portion of said periphery is spaced apart from said inner wall surface, there being a weir attached to the spaced apart portion of said periphery and extending above the surface of said tray, said weir being formed with one central portion with two vertical edges and one wing portion connected to each vertical edge to form one notch, said wing portions being of uniform height and abutting against said inner wall surface, the height of said wing portions above the tray being from 1.2 to 3.0 times the height of said central portion above the tray, the density of the holes in the tray being greater in the tray parts close to the inner wall surface, the tray caps and the weir being the only attachments to the tray.
Claim 2
Dependent Claim
192 words
A gas-liquid contactor mounted on an oscillating base having at least one tray mounted in a cylindrical body, said tray being formed with a periphery and a plurality of holes fitted with tray caps for the passage of gas therethrough, said cylindrical body being formed with inner and outer wall surfaces, the tray being formed and mounted in such a manner that a portion of said periphery is spaced apart from said inner wall surface, there being a weir attached to the spaced apart portion of said periphery and extending above the surface of said tray, said weir being formed with one central portion with two vertical edges and one wing portion connected to each vertical edge to form one notch, said wing portions being of uniform height and abutting against said inner wall surface, the height of said wing portions above the tray being from 1.2 to 3.0 times the height of said central portion above the tray, the density of the holes in the tray being greater in the tray parts close to the inner wall surface, the tray caps and the weir being the only attachments to the tray.
Claim 3
Dependent Claim
21 words
A gas-liquid contactor of claim 1 in which the central portion and the wing portions of said weir are flat plates.
Claim 4
Dependent Claim
25 words
A gas-liquid contactor of claim 1 in which the central portion and wing portions are arcuately shaped along said spaced apart portion of said periphery.
References Cited (Backward Citations)
US2366958A
Cited
US2884236A
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US3045989A
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US3215414A
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US3362696A
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US3729179A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1989-07-28 | 1990-01-27 | 1990-07-29 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1993-07-28 | 1994-01-27 | 1994-07-29 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1997-07-28 | 1998-01-27 | 1998-07-29 | $7700.00 | Window Closed / Lapsed |