US3325912A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Apparatus for treatment of loose materials with gaseous mediums
Assignee: Individual
•
Filing: 1965-03-22
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Granted: 1967-06-20
•
Expires: 1985-03-22
Abstract
No abstract record available.
Inventors
- 👤 Bojner Gustav
- 👤 Bojner Gosta
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 21:08
CPC Classifications
F; F26; F26B; F26B17/00; F26B17/12; F26B17/122; F26B17/126; F26B17/30
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
221 words
AN APPARATUS FOR THE TREATMENT OF LOOSE MATERIALS WITH A GASEOUS MEDIUM COMPRISING: A TOWER INCLUDING A STATIONARY CASING; A ROTATABLY MOUNTED RECEPTACLE WITHIN SAID CASING AND HAVING A PERFORATED ENVELOPE WALL, SAID PERFORATED ENVELOPE WALL PROVIDING A CENTRAL INNER SPACE; SAID CASING HAVING SUBSTANTIALLY OPPOSED INLET AND OUTLET OPENINGS WHEREBY SAID GASEOUS MEDIUM IS ALLOWED TO FLOW TRANSVERSELY THROUGH SAID CENTRAL INNER SPACE; SAID CASING AND SAID RECEPTACLE EACH HAVING OPENINGS AT THEIR TOP FOR FEEDING LOOSE MATERIAL INTO SAID CENTRAL INNER SPACE AND OPENINGS AT THEIR BOTTOM FOR DISCHARGING THE LOOSE MATERIAL AS TREATED; MEANS FOR ROTATING SAID RECEPTACLE DURING THE TREATED; MEANS FOR ROTATING SAID RECEPTACLE DURING CENTRAL INNER SPACE AND THROUGH SAID LOOSE MATERIAL CONTAINED THEREIN WHEREBY SUCCESSIVELY NEW PORTIONS OF THE CROSS-SECTION OF THE PERFORATED ENVELOPE WALL AND OF THE LOOSE MATERIAL WILL BE WITHIN THE TRANSVERSE FLOW OF THE GASEOUS MEDIUM; AXIALLY EXTENDING SEALING MEANS MOUNTED BETWEEN SAID ROTATABLE ENVELOPE WALL AND SAID STATIONARY CASING, SAID SEALING MEANS DIVIDING THE CIRCUMFERENCE OF THE PERFORATED ENVELOPE WALL INTO A PLURALITY OF MUTUALLY ISOLATED PASSAGE ZONES FOR THE GASEOUS MEDIUM, AT LEAST ONE OF SAID ZONES BEING ALWAYS IN DIRECT CONNECTION WITH THE INLET OPENING FOR GASEOUS MEDIUM AND AT LEAST ONE SUBSTANTIALLY OPPOSED ZONE BEING IN DIRECT CONNECTION WITH THE OUTLET OPENING FOR THE GASEOUS MEDIUM.
Claim 2
Independent Claim
221 words
AN APPARATUS FOR THE TREATMENT OF LOOSE MATERIALS WITH A GASEOUS MEDIUM COMPRISING: A TOWER INCLUDING A STATIONARY CASING; A ROTATABLY MOUNTED RECEPTACLE WITHIN SAID CASING AND HAVING A PERFORATED ENVELOPE WALL, SAID PERFORATED ENVELOPE WALL PROVIDING A CENTRAL INNER SPACE; SAID CASING HAVING SUBSTANTIALLY OPPOSED INLET AND OUTLET OPENINGS WHEREBY SAID GASEOUS MEDIUM IS ALLOWED TO FLOW TRANSVERSELY THROUGH SAID CENTRAL INNER SPACE; SAID CASING AND SAID RECEPTACLE EACH HAVING OPENINGS AT THEIR TOP FOR FEEDING LOOSE MATERIAL INTO SAID CENTRAL INNER SPACE AND OPENINGS AT THEIR BOTTOM FOR DISCHARGING THE LOOSE MATERIAL AS TREATED; MEANS FOR ROTATING SAID RECEPTACLE DURING THE TREATED; MEANS FOR ROTATING SAID RECEPTACLE DURING CENTRAL INNER SPACE AND THROUGH SAID LOOSE MATERIAL CONTAINED THEREIN WHEREBY SUCCESSIVELY NEW PORTIONS OF THE CROSS-SECTION OF THE PERFORATED ENVELOPE WALL AND OF THE LOOSE MATERIAL WILL BE WITHIN THE TRANSVERSE FLOW OF THE GASEOUS MEDIUM; AXIALLY EXTENDING SEALING MEANS MOUNTED BETWEEN SAID ROTATABLE ENVELOPE WALL AND SAID STATIONARY CASING, SAID SEALING MEANS DIVIDING THE CIRCUMFERENCE OF THE PERFORATED ENVELOPE WALL INTO A PLURALITY OF MUTUALLY ISOLATED PASSAGE ZONES FOR THE GASEOUS MEDIUM, AT LEAST ONE OF SAID ZONES BEING ALWAYS IN DIRECT CONNECTION WITH THE INLET OPENING FOR GASEOUS MEDIUM AND AT LEAST ONE SUBSTANTIALLY OPPOSED ZONE BEING IN DIRECT CONNECTION WITH THE OUTLET OPENING FOR THE GASEOUS MEDIUM.
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) | 1970-06-19 | 1970-12-19 | 1971-06-20 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1974-06-19 | 1974-12-19 | 1975-06-20 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1978-06-19 | 1978-12-19 | 1979-06-20 | $7700.00 | Window Closed / Lapsed |