Patent US4197264A successfully refreshed from Google Patents.
US4197264A
Expired / Lapsed
US
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Tower packing elements
Assignee: MASS TRANSFER Ltd HEVERSHAM CUMBRIA LA7 7EB ENGLAND
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Filing: 1977-06-13
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Granted: 1980-04-08
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Expires: 1997-06-13
Abstract
Abstract An improved packing element for a fluid-fluid contact apparatus is formed from pieces of sheet material; the elements contain a pair of curved strips connected together at their ends by a pair of generally coplanar bridge members.
Inventors
- 👤 Anthony Degg
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 15:21
CPC Classifications
B; B01; B01J; B01J19/00; B01J19/30; B01D; B01D3/00; B01D3/14; B01D3/32; B01D3/324; B01D3/328; B01J2219/00; B01J2219/30; B01J2219/302; B01J2219/30223; B01J2219/304; B01J2219/30408; Y; Y10; Y10S; Y10S261/00; Y10S261/72
Claims Analysis
Total Claims: 12
Claim 1
Independent Claim
91 words
In a packed tower fluid-fluid contact apparatus having a tower packed with at least one bed of packing elements and means for introducing fluid into the tower for contact therein, the improvement wherein at least some of said packing elements are metallic, each of said metallic packing elements comprising a pair of curved strips connected together at their ends by a pair of generally coplanar bridge members and folded together with said ends of the curved strips in confronting relationship to each other so that a generally tubular member is formed.
Claim 2
Dependent Claim
91 words
In a packed tower fluid-fluid contact apparatus having a tower packed with at least one bed of packing elements and means for introducing fluid into the tower for contact therein, the improvement wherein at least some of said packing elements are metallic, each of said metallic packing elements comprising a pair of curved strips connected together at their ends by a pair of generally coplanar bridge members and folded together with said ends of the curved strips in confronting relationship to each other so that a generally tubular member is formed.
Claim 3
Dependent Claim
24 words
The improvement according to claim 1, wherein said packing elements are each completely formed from a one-piece metal blank curved and folded upon itself.
Claim 4
Dependent Claim
24 words
The improvement according to claim 2, wherein said metal blank includes at least one central longitudinal slit means for folding the metal blank therealong.
Claim 5
Dependent Claim
26 words
The improvement according to claim 2, wherein said bridge members are formed integrally with the ends of the curved strips and are directed generally radially outwardly.
Claim 6
Dependent Claim
26 words
The improvement according to claim 2, wherein said bridge members are formed integrally with the ends of the curved strips and are directed generally radially inwardly.
Claim 7
Dependent Claim
21 words
The improvement according to claim 1, wherein said packing elements have a height to diameter ratio of from 1:1.5 to 1:10.
Claim 8
Dependent Claim
14 words
The improvement according to claim 6, wherein said ratio is from 1:2.5 to 1:5.
Claim 9
Dependent Claim
24 words
The improvement according to claim 2, including ribs formed from said metal blank and extending inwardly from the curved strips of the tubular member.
Claim 10
Dependent Claim
12 words
The improvement according to claim 8, wherein the curved strips include apertures.
Claim 11
Dependent Claim
20 words
The improvement according to claim 8, wherein said ribs are connected together at the longitudinal axis of the tubular member.
Claim 12
Dependent Claim
74 words
The improvement according to claim 2, wherein said metal blank includes a pair of central, colinear longitudinal slit means for folding the metal blank therealong, each of said pair of central longitudinal slit means being spaced from each other, and a further longitudinal slit means for dividing the metal blank into regions, said further longitudinal slit means being arranged on each side of and substantially parallel with said pair of central longitudinal slit means.
References Cited (Backward Citations)
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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) | 1983-04-08 | 1983-10-08 | 1984-04-08 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1987-04-08 | 1987-10-08 | 1988-04-08 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1991-04-08 | 1991-10-08 | 1992-04-08 | $7700.00 | Window Closed / Lapsed |