Patent US3754655A successfully refreshed from Google Patents.
US3754655A
Expired / Lapsed
US
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Vortex-type slurry separator
Assignee: Bird Machine Co Inc
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Filing: 1972-02-07
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Granted: 1973-08-28
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Expires: 1992-02-07
Abstract
Abstract In a vortex-type slurry separator dilution liquid is introduced through an eddy chamber adjacent the separator body, the chamber having a transfer opening which extends through the wall of the body to allow overlap of a dilution liquid body with the outer vortex in the separator, so that the liquid will pass smoothly into the outer vortex by eddy current transfer.
Inventors
- 👤 E Troland
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 18:01
CPC Classifications
B; B04; B04C; B04C5/00; B04C5/14; B04C5/18
Claims Analysis
Total Claims: 6
Claim 1
Independent Claim
127 words
In a vortex-type slurry separator having a tubular body for containing slurry flowing in a pattern including an outer vortex flowing generally toward one outlet and an inner vortex flowing generally toward another outlet, that improvement consisting of apparatus for introducing dilution liquid into said outer vortex, said apparatus comprising a housing positioned adjacent said body and having an internal wall extending smoothly about an axis to form an eddy chamber, said wall having an inlet for introduction of dilution liquid to cause said liquid to fOrm an eddy in said chamber, and a transfer opening which extends through the wall of said body to allow said eddy to overlap said outer vortex, whereby said liquid will pass smoothly into said outer vortex by eddy current transfer.
Claim 2
Dependent Claim
127 words
In a vortex-type slurry separator having a tubular body for containing slurry flowing in a pattern including an outer vortex flowing generally toward one outlet and an inner vortex flowing generally toward another outlet, that improvement consisting of apparatus for introducing dilution liquid into said outer vortex, said apparatus comprising a housing positioned adjacent said body and having an internal wall extending smoothly about an axis to form an eddy chamber, said wall having an inlet for introduction of dilution liquid to cause said liquid to fOrm an eddy in said chamber, and a transfer opening which extends through the wall of said body to allow said eddy to overlap said outer vortex, whereby said liquid will pass smoothly into said outer vortex by eddy current transfer.
Claim 3
Dependent Claim
26 words
The improvement of claim 1 wherein said chamber has an inside diameter between one-sixth and 6 times the inside diameter of said body at said opening.
Claim 4
Dependent Claim
30 words
The improvement of claim 1 wherein at least 10 percent of the axial extent of said tubular body lies downstream of said transfer opening with respect to said outer vortex.
Claim 5
Dependent Claim
30 words
The improvement of claim 3 wherein at least 40 percent of the axial extent of said tubular body lies upstream of said transfer opening with respect to said outer vortex.
Claim 6
Dependent Claim
32 words
The improvement of claim 3 wherein said tubular body has a converging section, and said transfer opening communicates with said converging section intermediate the maximum and minimum diameters of said converging section.
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) | 1976-08-27 | 1977-02-26 | 1977-08-28 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1980-08-27 | 1981-02-26 | 1981-08-28 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1984-08-27 | 1985-02-26 | 1985-08-28 | $7700.00 | Window Closed / Lapsed |