US4009751A
Expired / Lapsed
US
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Method of and apparatus for high intensity heat and/or mass transfer between two or more phases
Assignee: SLOVENSKA VYSOKA SKOLA TECHNIKA
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Filing: 1974-11-07
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Granted: 1977-03-01
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Expires: 1994-11-07
Abstract
Abstract Heat and/or mass transmission between two or more phases is accomplished by a helical guide for both phases inside a column flowing either in counter-current or in co-current. The phase with a higher specific mass flows within the column along a continuous track formed by an outer helix; the phase with a lower specific mass flows along an internal helix within the column. These flows are brought about by suitable elements which are built-in in a cylindrical column.
Inventors
- 👤 Andrej Zelnik
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 15:39
CPC Classifications
F; F28; F28F; F28F13/00; F28F13/06; F28F13/12; B; B01; B01D; B01D3/00; B01D3/14; B01D3/30; B01D47/00; B01J; B01J10/00; B01J10/02; B01J19/00; B01J19/0006; B01J19/0013; B01J19/0053; B01J19/006; B01J19/0066; B01J19/24; B01J19/2405; B01J19/2415; B01J19/32; F28D; F28D7/00; F28D7/02; F28D7/024; F28D7/10; F28D7/106; B01J2219/00; B01J2219/00049; B01J2219/00051; B01J2219/00074; B01J2219/00076; B01J2219/00083; B01J2219/00087; B01J2219/00094; B01J2219/00761; B01J2219/00763; B01J2219/00765; B01J2219/0077; B01J2219/00772; B01J2219/00779
Claims Analysis
Total Claims: 3
Claim 1
Independent Claim
122 words
In a method of heat and/or mass transfer between first and second fluid phases wherein the first phase has a specific gravity greater than the second phase and wherein the method comprises the steps of separately flowing the first and second phases along an elongated cylindrical column in heat and/or mass transfer relation, the improvement which comprises the steps of directing the flow of the first phase downwardly through the column along an essentially continuous helical path throughout the entire length of the column adjacent the inner wall thereof, and directing the flow of the second phase along an essentially continuous helical path through the interior of the column in direct physical contact with the helical downward flow of the first phase.
Claim 2
Dependent Claim
122 words
In a method of heat and/or mass transfer between first and second fluid phases wherein the first phase has a specific gravity greater than the second phase and wherein the method comprises the steps of separately flowing the first and second phases along an elongated cylindrical column in heat and/or mass transfer relation, the improvement which comprises the steps of directing the flow of the first phase downwardly through the column along an essentially continuous helical path throughout the entire length of the column adjacent the inner wall thereof, and directing the flow of the second phase along an essentially continuous helical path through the interior of the column in direct physical contact with the helical downward flow of the first phase.
Claim 3
Dependent Claim
25 words
Method as in claim 1, wherein the phases flow in co-current, and the turns of the helix for both phases are in the same direction.
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) | 1980-02-29 | 1980-08-30 | 1981-03-01 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1984-02-29 | 1984-08-30 | 1985-03-01 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1988-02-29 | 1988-08-30 | 1989-03-01 | $7700.00 | Window Closed / Lapsed |