Patent US2249119A successfully refreshed from Google Patents.
Patent US2713478A successfully refreshed from Google Patents.
US2713478A
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Apparatus for counter-current contacting of liquids and vapors
Assignee: EDW G RAGATZ Co
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Filing: 1952-10-03
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Granted: 1955-07-19
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Expires: 1972-10-03
Abstract
No abstract record available.
Inventors
- 👤 Edward G Ragatz
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 07:53
CPC Classifications
B; B01; B01D; B01D3/00; B01D3/14; B01D3/16; B01D3/22; B01D11/00; B01D11/04; B01D11/0426; B01D11/043
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
92 words
A LIQUID-VAPOR CONTACTING APPARATUS OF THE CHARACTER DESCRIBED COMPRISING A HORIZONTAL COLUMN TRAY ACROSS WHICH LIQUID FLOWS INCLUDING, A THIN PERFORATE PLATE, BLANKING PLATES LOCATED OVER THE PERFORATE PLATE TRANSVERSE THE LIQUID FLOW, AND VERTICAL WEIRS PARALLELING AND ATTACHED TO THE BLANKING PLATES FORMING BARRIERS BETWEEN THE BLANKING PLATES AND THE ADJACENT DOWNSTREAM FREE PERFORATED PLATE SECTIONS, SAID WEIRS AND BLANKING PLATES FORMING VAPOR-DISENGAGING AND LIQUID-COALESCING ZONES BETWEEN PERFORATE PLATE SECTIONS WHEREBY A PORTION OF THE CROSSFLOWING LIQUID IS COALESCED AND CAUSED TO RECYCLE BACK INTO AN ADJACENT UPSTREAM LIQUID-VAPOR CONTACTING ZONE.
Claim 2
Dependent Claim
92 words
A LIQUID-VAPOR CONTACTING APPARATUS OF THE CHARACTER DESCRIBED COMPRISING A HORIZONTAL COLUMN TRAY ACROSS WHICH LIQUID FLOWS INCLUDING, A THIN PERFORATE PLATE, BLANKING PLATES LOCATED OVER THE PERFORATE PLATE TRANSVERSE THE LIQUID FLOW, AND VERTICAL WEIRS PARALLELING AND ATTACHED TO THE BLANKING PLATES FORMING BARRIERS BETWEEN THE BLANKING PLATES AND THE ADJACENT DOWNSTREAM FREE PERFORATED PLATE SECTIONS, SAID WEIRS AND BLANKING PLATES FORMING VAPOR-DISENGAGING AND LIQUID-COALESCING ZONES BETWEEN PERFORATE PLATE SECTIONS WHEREBY A PORTION OF THE CROSSFLOWING LIQUID IS COALESCED AND CAUSED TO RECYCLE BACK INTO AN ADJACENT UPSTREAM LIQUID-VAPOR CONTACTING ZONE.
References Cited (Backward Citations)
US337446A
Cited
AT429B
Cited
US1811247A
Cited
US2116933A
Cited
US2085522A
Cited
GB569039A
Cited
US2610046A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1958-07-18 | 1959-01-17 | 1959-07-19 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1962-07-18 | 1963-01-17 | 1963-07-19 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1966-07-18 | 1967-01-17 | 1967-07-19 | $7700.00 | Window Closed / Lapsed |