US3168155A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Vehicles for travelling over land and/or water
Assignee: Hovercraft Development Ltd
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Filing: 1961-01-17
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Granted: 1965-02-02
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Expires: 1981-01-17
Abstract
No abstract record available.
Inventors
- 👤 Cockerell Christopher Sydney
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 01:34
CPC Classifications
B; B60; B60V; B60V1/00; B60V1/06; B60V1/02; B60V1/04; B60V1/046
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
199 words
A SUPPORT MEMBER FOR A VEHICLE FOR TRAVELLING OVER A SURFACE COMPRISING AT LEAST ONE ROTATIONALLY SYMMETRICAL DEFLECTING MEMBER LOCATED ADJACENT THE PERIPHERY OF THE SUPPORT MEMBER AND HAVING A DEFLECTING SURFACE WHICH HAS THE SHAPE OF A SURFACE OF ROTATION THE GENERATRIX OF WHICH IS A SMOOTH CURVE WHICH EXTENDS, WITH RESPECT TO THE AXIS OF ROTATIONAL SYMMETRY, OUTWARDLY AND DOWNWARDLY AND THEN DOWNWARDLY AND INWARDLY, AND MEANS MOUNTED WITHIN THE DEFLECTING MEMBER AND ROTATABLE ABOUT THE AXIS OF SYMMETRY OF THE DEFLECTING MEMBER FOR CAUSING AIR TO FLOW OUTWARDLY FROM WITHIN THE SUPPORT MEMBER TO THE DEFLECTING SURFACE OF THE DEFLECTING MEMBER SO AS TO DEFLECTED THEREBY DOWNWARDS AND INWARDS TOWARDS THE SURFACE OVER WHICH THE VEHICLE IS OPERATING TO FORM A CURTAIN OF AIR, THE BOTTOM EDGE OIF THE DEFLECTING MEMBER BEING SPACED OURWARDLY FROM THE REMAINDER OF THE SUPPORT MEMBER SO AS TO PROVIDE AN ANNULAR OPENING THROUGH WHICH THE CURTAIN FORMING AIR FLOWS BOTH DOWNWARDLY AND UPWARDLY TO FORM A VORTEX CURTAIN, THE CURTAIN TOGETHER WITH THE BOTTOM SURFACE OF THE SUPPORT MEMBER AND THE SURFACE OVER WHICH THE VEHICLE IS OPERATING ENCLOSING A SPACE IN WHICH A CUSHION OF PRESSURIZED AIR IS FORMED.
Claim 2
Dependent Claim
199 words
A SUPPORT MEMBER FOR A VEHICLE FOR TRAVELLING OVER A SURFACE COMPRISING AT LEAST ONE ROTATIONALLY SYMMETRICAL DEFLECTING MEMBER LOCATED ADJACENT THE PERIPHERY OF THE SUPPORT MEMBER AND HAVING A DEFLECTING SURFACE WHICH HAS THE SHAPE OF A SURFACE OF ROTATION THE GENERATRIX OF WHICH IS A SMOOTH CURVE WHICH EXTENDS, WITH RESPECT TO THE AXIS OF ROTATIONAL SYMMETRY, OUTWARDLY AND DOWNWARDLY AND THEN DOWNWARDLY AND INWARDLY, AND MEANS MOUNTED WITHIN THE DEFLECTING MEMBER AND ROTATABLE ABOUT THE AXIS OF SYMMETRY OF THE DEFLECTING MEMBER FOR CAUSING AIR TO FLOW OUTWARDLY FROM WITHIN THE SUPPORT MEMBER TO THE DEFLECTING SURFACE OF THE DEFLECTING MEMBER SO AS TO DEFLECTED THEREBY DOWNWARDS AND INWARDS TOWARDS THE SURFACE OVER WHICH THE VEHICLE IS OPERATING TO FORM A CURTAIN OF AIR, THE BOTTOM EDGE OIF THE DEFLECTING MEMBER BEING SPACED OURWARDLY FROM THE REMAINDER OF THE SUPPORT MEMBER SO AS TO PROVIDE AN ANNULAR OPENING THROUGH WHICH THE CURTAIN FORMING AIR FLOWS BOTH DOWNWARDLY AND UPWARDLY TO FORM A VORTEX CURTAIN, THE CURTAIN TOGETHER WITH THE BOTTOM SURFACE OF THE SUPPORT MEMBER AND THE SURFACE OVER WHICH THE VEHICLE IS OPERATING ENCLOSING A SPACE IN WHICH A CUSHION OF PRESSURIZED AIR IS FORMED.
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) | 1968-02-02 | 1968-08-03 | 1969-02-02 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1972-02-02 | 1972-08-03 | 1973-02-02 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1976-02-02 | 1976-08-03 | 1977-02-02 | $7700.00 | Window Closed / Lapsed |