Patent US3150625A successfully refreshed from Google Patents.
US3150625A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Hydrodynamic apparatus
Assignee: Individual
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Filing: 1962-05-01
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Granted: 1964-09-29
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Expires: 1982-05-01
Abstract
No abstract record available.
Inventors
- 👤 John D Brooks
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 06:07
CPC Classifications
B; B63; B63H; B63H25/00; B63H25/46
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
121 words
IN COMBINATION WITH A VEHICLE ADAPTED FOR TRAVEL THROUGH A WATER MEDIUM, AND HAVING A STABILIZING HYDROFOIL WITH FIRST AND SECOND COOPERATING SURFACES ADAPTED TO BE ACTED UPON BY UNBALANCED FORCES OF THE WATER MEDIUM TO PRODUCE A STABILIZING FORCE WHEN SAID HYDROFOIL IS DIVERTED TO AN ANGLE OF ATTACK, SAID VEHICLE INCLUDING MEANS FOR DELIVERING AT LEAST TWO CONTINUOUS SHEET-LIKE STREAMS OF LIQUID INTO AMBIENT WATER ADJACENT THE HYDROFOIL AND IN DIRECTIONS GENERALLY PERPENDICULAR TO VEHICLE MOVEMENT, SAID DIRECTIONS BEING SUCH THAT THE STREAMS FORM A LIQUID SEAL BETWEEN SAID FIRST AND SECOND SURFACES AND SUCH THAT THE REACTIVE FORCES PRODUCED BY THE STREAMS IN DIRECTIONS PERPENDICULAR TO MOVEMENT ARE BALANCED, TO THEREBY INCREASE THE STABILIZING EFFECT OF THE HYDROFOIL.
Claim 2
Dependent Claim
121 words
IN COMBINATION WITH A VEHICLE ADAPTED FOR TRAVEL THROUGH A WATER MEDIUM, AND HAVING A STABILIZING HYDROFOIL WITH FIRST AND SECOND COOPERATING SURFACES ADAPTED TO BE ACTED UPON BY UNBALANCED FORCES OF THE WATER MEDIUM TO PRODUCE A STABILIZING FORCE WHEN SAID HYDROFOIL IS DIVERTED TO AN ANGLE OF ATTACK, SAID VEHICLE INCLUDING MEANS FOR DELIVERING AT LEAST TWO CONTINUOUS SHEET-LIKE STREAMS OF LIQUID INTO AMBIENT WATER ADJACENT THE HYDROFOIL AND IN DIRECTIONS GENERALLY PERPENDICULAR TO VEHICLE MOVEMENT, SAID DIRECTIONS BEING SUCH THAT THE STREAMS FORM A LIQUID SEAL BETWEEN SAID FIRST AND SECOND SURFACES AND SUCH THAT THE REACTIVE FORCES PRODUCED BY THE STREAMS IN DIRECTIONS PERPENDICULAR TO MOVEMENT ARE BALANCED, TO THEREBY INCREASE THE STABILIZING EFFECT OF THE HYDROFOIL.
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) | 1967-09-29 | 1968-03-30 | 1968-09-29 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1971-09-29 | 1972-03-30 | 1972-09-29 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1975-09-29 | 1976-03-30 | 1976-09-29 | $7700.00 | Window Closed / Lapsed |