US3170285A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Vertical takeoff aerial lifting device
Assignee: GRUEN APPLIED SCIENCE LAB Inc
•
Filing: 1958-01-02
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Granted: 1965-02-23
•
Expires: 1978-01-02
Abstract
No abstract record available.
Inventors
- 👤 Ferri Antonio
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 01:18
CPC Classifications
B; B64; B64C; B64C29/00; B64C29/0008; B64C29/0016
Claims Analysis
Total Claims: 4
Claim 1
Independent Claim
121 words
A VERTICAL LIFTING DEVICE INCLUDING A STATOR HAVING BLADES WHOSE OUTER TIPS ARE SUPPORTED AGAINST A CYLINDRICAL WALL DEFINING AN AXIAL OPENING AND WHOSE INNER TIPS SUPPORT A HUB CENTRALLY POSITIONED WITHIN SAID OPENING, A ROTOR ROTATABLY MOUNTED ON SAID HUB AND HAVING COMPRESSOR BLADES CLOSELY ABOVE SAID STATOR, SAID BLADES BEING CLOSELY POSITIONED TO EACH OTHER AND EXTENDING FOR A MAJOR PORTION OF SAID OPENING, A NOZZLE ASSEMBLY MOUNTED CLOSELY ADJACENT SAID WALL ON THE OUTER TIPS OF SAID ROTOR BLADES TO EXHAUST GASES AT HIGH VELOCITY AND PROPEL THE TIPS OF SAID ROTOR AT SUPERSONIC VELOCITY, THE TURNING ANGLE OF SAID ROTOR AND ITS VELOCITY BEING SUCH THAT THERE IS NO APPRECIABLE RISE IN STATIC PRESSURE THROUGH SAID DEVICE.
Claim 2
Dependent Claim
121 words
A VERTICAL LIFTING DEVICE INCLUDING A STATOR HAVING BLADES WHOSE OUTER TIPS ARE SUPPORTED AGAINST A CYLINDRICAL WALL DEFINING AN AXIAL OPENING AND WHOSE INNER TIPS SUPPORT A HUB CENTRALLY POSITIONED WITHIN SAID OPENING, A ROTOR ROTATABLY MOUNTED ON SAID HUB AND HAVING COMPRESSOR BLADES CLOSELY ABOVE SAID STATOR, SAID BLADES BEING CLOSELY POSITIONED TO EACH OTHER AND EXTENDING FOR A MAJOR PORTION OF SAID OPENING, A NOZZLE ASSEMBLY MOUNTED CLOSELY ADJACENT SAID WALL ON THE OUTER TIPS OF SAID ROTOR BLADES TO EXHAUST GASES AT HIGH VELOCITY AND PROPEL THE TIPS OF SAID ROTOR AT SUPERSONIC VELOCITY, THE TURNING ANGLE OF SAID ROTOR AND ITS VELOCITY BEING SUCH THAT THERE IS NO APPRECIABLE RISE IN STATIC PRESSURE THROUGH SAID DEVICE.
Claim 3
Independent Claim
84 words
A METHOD OF OPERATING A BLADED COMPRESSOR WHEEL OF THE CHARACTER DESCRIBED TO OBTAIN GREAT LIFTING FORCE AND IMPROVED FUEL EFFICIENCY FROM A WHEEL HAVING A RELATIVELY SMALL DIAMETER, SAID METHOD COMPRISING TAKING A COMPRESSOR WHEEL MOUNTED IN THE BODOY PANEL OF AN AIRCRAFT AND THE LIKE, DRIVING SAID WHEEL WITH A SUPERSONIC TIP VELOCITY TO DRAW AIR INTO SAID WHEEL AT AN AVERAGE VELOCITY OF MACH 1, AND EXHAUSTING THE AIR THEREFROM AT SUBSTANTIALLY HIGHER VELOCITY WITH NO APPRECIABLE RISE IN STATIC PRESSURE.
Claim 4
Independent Claim
84 words
A METHOD OF OPERATING A BLADED COMPRESSOR WHEEL OF THE CHARACTER DESCRIBED TO OBTAIN GREAT LIFTING FORCE AND IMPROVED FUEL EFFICIENCY FROM A WHEEL HAVING A RELATIVELY SMALL DIAMETER, SAID METHOD COMPRISING TAKING A COMPRESSOR WHEEL MOUNTED IN THE BODOY PANEL OF AN AIRCRAFT AND THE LIKE, DRIVING SAID WHEEL WITH A SUPERSONIC TIP VELOCITY TO DRAW AIR INTO SAID WHEEL AT AN AVERAGE VELOCITY OF MACH 1, AND EXHAUSTING THE AIR THEREFROM AT SUBSTANTIALLY HIGHER VELOCITY WITH NO APPRECIABLE RISE IN STATIC PRESSURE.
References Cited (Backward Citations)
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1968-02-23 | 1968-08-24 | 1969-02-23 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1972-02-23 | 1972-08-24 | 1973-02-23 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1976-02-23 | 1976-08-24 | 1977-02-23 | $7700.00 | Window Closed / Lapsed |