US3280837A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Vortex transfer device
Assignee: Bowles Engineering Corp
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Filing: 1963-11-20
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Granted: 1966-10-25
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Expires: 1983-11-20
Abstract
No abstract record available.
Inventors
- 👤 Francis M Manion
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 08:31
CPC Classifications
F; F15; F15C; F15C1/00; F15C1/02; Y; Y10; Y10T; Y10T137/00; Y10T137/206; Y10T137/2087; Y10T137/2093; Y10T137/2098
Claims Analysis
Total Claims: 1
Claim 1
Independent Claim
100 words
IN A FLUID AMPLIFIER SYSTEM INCLUDING FIRST AND SECOND FLUID AMPLIFIERS EACH HAVING AT LEAST ONE OUTPUT CHANNEL AND ONE CONTROL NOZZLE, A FLUID TRANSFER MEANS COMPRISING A CYLINDRICAL CHAMBER, MEANS FOR INTRODUCING FLUID FLOWING IN AN OUTPUT CHANNEL OF THE FIRST AMPLIFIER TANGENTIALLY INTO SAID CHAMBER ADJACENT ONE END THEREOF, MEANS FOR EXTRACTING FLUID TANGENTIALLY FROM SAID CHAMBER DOWNSTREAM OF SAID MEANS FOR INTRODUCING, AND STRUCTURAL MEANS LOCATED ALONG THE LONGITUDIANL AXIS OF SAID CYLINDRICAL CHAMBER FOR PROVIDING A RELATIVELY UNIFORM VELOCITY PROFILE ALONG THE LENGTH OF SAID MEANS FOR EXTRACTING PARALLEL TO THE LONGITUDINAL AXIS OF SAID CHAMBER.
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) | 1969-10-24 | 1970-04-25 | 1970-10-25 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-10-24 | 1974-04-25 | 1974-10-25 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-10-24 | 1978-04-25 | 1978-10-25 | $7700.00 | Window Closed / Lapsed |