US2750169A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Vortex apparatus for liquid and gas
Assignee: Shell Development Co
•
Filing: 1953-11-10
•
Granted: 1956-06-12
•
Expires: 1973-11-10
Abstract
No abstract record available.
Inventors
- 👤 Joyce John Ruskin
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 22:45
CPC Classifications
F; F23; F23D; F23D11/00; F23D14/00
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
137 words
IN A VORTEX DEVICE, THE COMBINATION OF A PAIR OF HOLLOW, CONCENTRIC, CONTIGUOUS, RELATIVELY ROTATABLE WALLS DEFINING THEREIN A VORTEX CHAMBER, THE OUTER OF SAID WALLS HAVING A SET OF INLET BORES SUBSTANTIALLY TANGENTIAL TO SAID CHAMBER AND THE INNER OF SAID WALLS HAVING A SET OF PORTS POSITIONED TO REGISTER RESPECTIVELY WITH SAID BORES AND TO BE MOVED PROGRESSIVELY OUT OF REGISTER WITH SAID BORES UPON RELATIVE ROTATION BETWEEN SAID WALLS, AT LEAST THE PARTS OF THE INNER WALL DEFINING THE PORTS BEING THIN IN RELATION TO THE WIDTHS OF SAID PORTS MEASURED CIRCUMFERENTIALLY ALONG SAID WALL, WHEREBY THE DIRECTION OF FLOW OF FLUID ENTERING SAID CHAMBER THROUGH SAID BORES AND PORTS VARIES WITH THE EXTENT TO WHICH THE SAID PORTS ARE IN REGISTER WITH SAID BORES; AND MEANS FOR EFFECTING RELATIVE ROTATION BETWEEN SAID WALLS.
Claim 2
Dependent Claim
137 words
IN A VORTEX DEVICE, THE COMBINATION OF A PAIR OF HOLLOW, CONCENTRIC, CONTIGUOUS, RELATIVELY ROTATABLE WALLS DEFINING THEREIN A VORTEX CHAMBER, THE OUTER OF SAID WALLS HAVING A SET OF INLET BORES SUBSTANTIALLY TANGENTIAL TO SAID CHAMBER AND THE INNER OF SAID WALLS HAVING A SET OF PORTS POSITIONED TO REGISTER RESPECTIVELY WITH SAID BORES AND TO BE MOVED PROGRESSIVELY OUT OF REGISTER WITH SAID BORES UPON RELATIVE ROTATION BETWEEN SAID WALLS, AT LEAST THE PARTS OF THE INNER WALL DEFINING THE PORTS BEING THIN IN RELATION TO THE WIDTHS OF SAID PORTS MEASURED CIRCUMFERENTIALLY ALONG SAID WALL, WHEREBY THE DIRECTION OF FLOW OF FLUID ENTERING SAID CHAMBER THROUGH SAID BORES AND PORTS VARIES WITH THE EXTENT TO WHICH THE SAID PORTS ARE IN REGISTER WITH SAID BORES; AND MEANS FOR EFFECTING RELATIVE ROTATION BETWEEN SAID WALLS.
References Cited (Backward Citations)
US1087768A
Cited
US1180907A
Cited
US1706316A
Cited
US2674493A
Cited
US2627395A
Cited
US2653054A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1959-06-12 | 1959-12-12 | 1960-06-12 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1963-06-12 | 1963-12-12 | 1964-06-12 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1967-06-12 | 1967-12-12 | 1968-06-12 | $7700.00 | Window Closed / Lapsed |