Patent US4141459A successfully refreshed from Google Patents.
Patent US4337217A successfully refreshed from Google Patents.
US4337217A
Expired / Lapsed
US
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Contacting arrangement for mass transfer operations and set of plates for use in said arrangement
Assignee: Raschig GmbH
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Filing: 1981-04-22
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Granted: 1982-06-29
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Expires: 2001-04-22
Abstract
Abstract The contacting arrangement comprises at least one set of parallel plates, which are equally spaced apart and extend at an angle to the horizontal. Each of said plates is formed with a plurality of slots, which are arranged in at least two generally parallel rows, which are transversely spaced apart in the vertical direction. Each of said slots is defined on at least one side by a lug, which is bent from said plate. The longitudinal directions of the slots of adjacent rows of each plate are in mutually opposite senses from the vertical.
Inventors
- 👤 Roland Braun
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-08 07:42
CPC Classifications
B; B01; B01J; B01J19/00; B01J19/32; B01D; B01D3/00; B01D3/14; B01D3/16; B01D3/24; B01J2219/00; B01J2219/32; B01J2219/322; B01J2219/32203; B01J2219/32206; B01J2219/32213; B01J2219/32224; B01J2219/32227; B01J2219/32237; B01J2219/32241; B01J2219/324; B01J2219/32408; B01J2219/32483; Y; Y10; Y10T; Y10T428/00; Y10T428/24; Y10T428/24273; Y10T428/24298; Y10T428/24314
Claims Analysis
Total Claims: 17
Claim 1
Independent Claim
136 words
In a contacting arrangement for mass transfer operations comprising a set of equally spaced apart parallel plates, the improvement comprised in that: each of said plates is formed with a plurality of slots which are arranged in at least two transversely spaced apart, generally parallel rows, each of said slots is defined on at least one side by a lug which is bent from said plate, and the longitudinal directions of the slots of adjacent rows of each plate are inclined in opposite senses from the normal on the longitudinal direction of said rows, adjacent lugs associated with a given row of slots being bent from said plate toward opposite sides thereof, corresponding lugs of adjacent plates crossing each other so as to define nips for mixing and imparting turbulence to fluids flowing between said plates.
Claim 2
Dependent Claim
136 words
In a contacting arrangement for mass transfer operations comprising a set of equally spaced apart parallel plates, the improvement comprised in that: each of said plates is formed with a plurality of slots which are arranged in at least two transversely spaced apart, generally parallel rows, each of said slots is defined on at least one side by a lug which is bent from said plate, and the longitudinal directions of the slots of adjacent rows of each plate are inclined in opposite senses from the normal on the longitudinal direction of said rows, adjacent lugs associated with a given row of slots being bent from said plate toward opposite sides thereof, corresponding lugs of adjacent plates crossing each other so as to define nips for mixing and imparting turbulence to fluids flowing between said plates.
Claim 3
Dependent Claim
19 words
The improvement set forth in claim 1, wherein said lugs are bent off said plates at right angles thereto.
Claim 4
Dependent Claim
27 words
The improvement set forth in claim 1, wherein each of said slots is defined on opposite sides by lugs bent from said plate toward opposite sides thereof.
Claim 5
Dependent Claim
19 words
The improvement set forth in claim 4, wherein said lugs are bent from said plate at right angles thereto.
Claim 6
Dependent Claim
39 words
The improvement set forth in claim 1, wherein said rows are straight and the longitudinal direction of each of said slots includes an angle of 15 to 45 degrees with the normal on the longitudinal direction of said rows.
Claim 7
Dependent Claim
19 words
The improvement set forth in claim 1, wherein said plates are held together by crossties extending through said set.
Claim 8
Dependent Claim
39 words
The improvement set forth in claim 1, wherein said rows are straight and the longitudinal direction of each of said slots includes an angle of 15 to 45 degrees with the normal on the longitudinal direction of said rows.
Claim 9
Dependent Claim
35 words
The improvement set forth in claim 1, wherein each of said plates is rectangular and has corner portions formed with concave recesses adapted to receive a sealing member which extends around the set of plates.
Claim 10
Dependent Claim
44 words
The improvement set forth in claim 1 as applied to a set of plates for use in a cylindrical mass transfer column, wherein said plates decrease in width toward opposite sides of the set so that the set of plates is circular in cross-section.
Claim 11
Dependent Claim
13 words
The improvement set forth in claim 1, wherein said plates consist of metal.
Claim 12
Dependent Claim
14 words
The improvement set forth in claim 1, wherein said plates consist of plastic material.
Claim 13
Dependent Claim
126 words
In a contacting arrangement for mass transfer operations comprising at least one set of parallel plates which are equally spaced apart and extend at an angle to the horizontal, the improvement comprised in that: each of said plates is formed with a plurality of slots, which are arranged in at least two generally parallel rows, which are transversely spaced in the vertical direction, each of said slots is defined on each side by a lug which can be bent from said plate, and the longitudinal directions of the slots of adjacent rows of each plate are inclined from the vertical in mutually opposite senses, corresponding lugs of adjacent plates crossing each other to define nips or mixing and imparting turbulence to fluids flowing between said plates.
Claim 14
Dependent Claim
126 words
In a contacting arrangement for mass transfer operations comprising at least one set of parallel plates which are equally spaced apart and extend at an angle to the horizontal, the improvement comprised in that: each of said plates is formed with a plurality of slots, which are arranged in at least two generally parallel rows, which are transversely spaced in the vertical direction, each of said slots is defined on each side by a lug which can be bent from said plate, and the longitudinal directions of the slots of adjacent rows of each plate are inclined from the vertical in mutually opposite senses, corresponding lugs of adjacent plates crossing each other to define nips or mixing and imparting turbulence to fluids flowing between said plates.
Claim 15
Dependent Claim
26 words
The improvement set forth in claim 12, wherein adjacent lugs associated with a given row of slots are bent from said plate toward opposite sides thereof.
Claim 16
Dependent Claim
27 words
The improvement set forth in claim 12, wherein the longitudinal direction of each of said slots includes an angle of 15 to 45 degrees with the vertical.
Claim 17
Dependent Claim
12 words
The improvement set forth in claim 12, wherein said plates are vertical.
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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) | 1985-06-28 | 1985-12-28 | 1986-06-29 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1989-06-28 | 1989-12-28 | 1990-06-29 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1993-06-28 | 1993-12-28 | 1994-06-29 | $7700.00 | Window Closed / Lapsed |