US4744928A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Regular packing for countercurrent mass and direct heat transfer columns
Assignee: Sulzer AG
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Filing: 1982-07-13
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Granted: 1988-05-17
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Expires: 2002-07-13
Abstract
Abstract The regular packing element is formed by layers of inclined deflecting elements. The deflecting elements are arranged in criss-crossing relation to each other and provide continuous flow channels which are open at both ends. In addition, the flow channels are open laterally to the flow channels of the adjacent layers of the deflecting elements. The packing provides for an improved and accelerated mass transfer between two media flowing through the packing in countercurrent.
Inventors
- 👤 Werner Meier
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 19:22
CPC Classifications
B; B01; B01D; B01D3/00; B01D3/14; B01D3/16; B01D3/24; B01F; B01F25/00; B01F25/40; B01F25/42; B01F25/43; B01F25/431; B01F25/4316; B01J; B01J19/00; B01J19/32; F; F28; F28F; F28F25/00; F28F25/02; F28F25/08; F28F25/082; B01J2219/00; B01J2219/32; B01J2219/322; B01J2219/32286; F28D; F28D21/00; F28D2021/0019; F28D2021/0052; Y; Y10; Y10S; Y10S261/00; Y10S261/72; Y10T; Y10T428/00; Y10T428/24; Y10T428/24149; Y10T428/24628; Y10T428/24669; Y10T428/24686
Claims Analysis
Total Claims: 9
Claim 1
Independent Claim
118 words
In combination with a countercurrent column for mass and direct heat exchange having a longitudinal vertical axis; a regular packing of open construction in said column having a plurality of vertically disposed side-by-side layers of parallel deflecting elements in continuous contact, said deflecting elements of each layer being inclined relative to said axis and being inclined relative to said elements of an adjacent layer in criss-crossing relation, said deflecting elements of each layer defining parallel flow channels for a descending first fluid and an ascending second fluid, said flow channels of each layer being open laterally to said flow channels of each adjacent layer to permit a lateral distribution of the descending first fluid and ascending second fluid.
Claim 2
Dependent Claim
118 words
In combination with a countercurrent column for mass and direct heat exchange having a longitudinal vertical axis; a regular packing of open construction in said column having a plurality of vertically disposed side-by-side layers of parallel deflecting elements in continuous contact, said deflecting elements of each layer being inclined relative to said axis and being inclined relative to said elements of an adjacent layer in criss-crossing relation, said deflecting elements of each layer defining parallel flow channels for a descending first fluid and an ascending second fluid, said flow channels of each layer being open laterally to said flow channels of each adjacent layer to permit a lateral distribution of the descending first fluid and ascending second fluid.
Claim 3
Dependent Claim
17 words
The combination of claim 1 wherein at least some of said deflecting elements have a fluted surface.
Claim 4
Dependent Claim
16 words
The combination of claim 1 wherein at least some of said deflecting elements have apertures therein.
Claim 5
Dependent Claim
20 words
The combination of claim 1 wherein at least some of said deflecting elements have alternating plane surfaces and patterned surfaces.
Claim 6
Dependent Claim
16 words
The combination of claim 1 wherein at least some of said deflecting elements have stair-like surfaces.
Claim 7
Dependent Claim
22 words
The combination of claim 1 wherein said deflecting elements overlap with each other at crossing points thereof to interfit with each other.
Claim 8
Dependent Claim
42 words
The combination of claim 1 wherein at least some of said deflecting elements have jags in at least one of a side edge and/or an end thereof to provide for a dripping action of liquid from one element onto a lower element.
Claim 9
Dependent Claim
15 words
The combination of claim 1 wherein each said deflecting element is of elongated rectangular shape.
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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) | 1991-05-17 | 1991-11-16 | 1992-05-17 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1995-05-17 | 1995-11-16 | 1996-05-17 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1999-05-17 | 1999-11-16 | 2000-05-17 | $7700.00 | Window Closed / Lapsed |