US3791634A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Cross flow tower fill of cellular construction
Assignee: Individual
•
Filing: 1970-04-29
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Granted: 1974-02-12
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Expires: 1990-04-29
Abstract
Abstract A crossflow tower (e.g., for water cooling) which incorporates packing formed by a number of superposed adjacent cellular units. The principal planes of each unit are generally parallel and inclined at a substantial angle, such as 5* to 70* to the horizontal. Each unit includes a gridwork of horizontally open stacked cells forming substantially horizontal liquid splash plates. The above inclined units are stacked against each other substantially throughout the fill assembly. Each plate is vertically offset from proximal plates so that the open edges of an upper plate overhang intermediate portions of lower plates. Liquid gravitating onto the lower plates forms a film which is contacted by crossflowing air for efficient air-liquid contact.
Inventors
- 👤 P Phelps
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 23:34
CPC Classifications
F; F28; F28F; F28F25/00; F28F25/02; F28F25/08; F28F25/085; Y; Y10; Y10S; Y10S261/00; Y10S261/11
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
179 words
In an apparatus for the contact of gravitating liquid with transversely flowing air, a packing comprising a plurality of superposed cellular units, the principal planes of each of said units being generally parallel and inclined at a substantial angle to the vertical, each unit having a series of horizontally open stacked cells framed by air partitioning spaced support sidewalls and by spaced substantially horizontal liquid splash plates, each of said plates in one unit being vertically offset from proximal plates in adjacent units, each of said units being formed of a matrix of cells having a rectangular vertical cross section, one open edge of a first one of said plates in a first unit overhanging an intermediate portion of a lower second plate and the other open edge of said first plate overhanging an intermediate portion of a lower third plate whereby liquid falling onto said first plate flows over said edges onto the upper surface of said second and third plates while air flowing transversely to said falling liquid through said cellular units contacts and cools said liquid.
Claim 2
Dependent Claim
179 words
In an apparatus for the contact of gravitating liquid with transversely flowing air, a packing comprising a plurality of superposed cellular units, the principal planes of each of said units being generally parallel and inclined at a substantial angle to the vertical, each unit having a series of horizontally open stacked cells framed by air partitioning spaced support sidewalls and by spaced substantially horizontal liquid splash plates, each of said plates in one unit being vertically offset from proximal plates in adjacent units, each of said units being formed of a matrix of cells having a rectangular vertical cross section, one open edge of a first one of said plates in a first unit overhanging an intermediate portion of a lower second plate and the other open edge of said first plate overhanging an intermediate portion of a lower third plate whereby liquid falling onto said first plate flows over said edges onto the upper surface of said second and third plates while air flowing transversely to said falling liquid through said cellular units contacts and cools said liquid.
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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) | 1977-02-11 | 1977-08-13 | 1978-02-12 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1981-02-11 | 1981-08-13 | 1982-02-12 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1985-02-11 | 1985-08-13 | 1986-02-12 | $7700.00 | Window Closed / Lapsed |