Patent US3765356A successfully refreshed from Google Patents.
US3765356A
Expired / Lapsed
US
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Hydrofoil watercraft steering and stabilizing mechanism
Assignee: Individual
•
Filing: 1972-03-02
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Granted: 1973-10-16
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Expires: 1992-03-02
Abstract
Abstract A mechanism for steering and stabilizing hydrofoil watercraft comprising mounting submerged foils under the stern in a plane parallel to the fore and aft lines of the craft and pivoted on an axis lying in a plane perpendicular to those fore and aft lines. When these submerged foils are then provided with a means for independently turning them from inside the craft, they form an effective method of turning the craft with reduced side slippage, especially if they are extended outboard of the craft.
Inventors
- 👤 K Cook
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 18:42
CPC Classifications
B; B63; B63B; B63B1/00; B63B1/16; B63B1/24
Claims Analysis
Total Claims: 8
Claim 1
Independent Claim
118 words
In a high speed hydrofoil watercraft comprising a floatable hull, forward and aft hydrofoils mounted beneath said hull and power means for propulsion, the improvement which comprises in combination, a. mounting means extending beneath the plane of said rear hydrofoils near each of the port and stArboard quarters of said watercraft, b. on each said mounting means, a submerged pivotably mounted foil, 1. said submerged foils being mounted in a plane parallel to the fore and aft lines of said craft, 2. said pivoting being on an axis of rotation lying in a plane perpendicular to the fore and aft lines of the craft, and c. means for independently pivoting each said submerged foil from inside said watercraft.
Claim 2
Dependent Claim
118 words
In a high speed hydrofoil watercraft comprising a floatable hull, forward and aft hydrofoils mounted beneath said hull and power means for propulsion, the improvement which comprises in combination, a. mounting means extending beneath the plane of said rear hydrofoils near each of the port and stArboard quarters of said watercraft, b. on each said mounting means, a submerged pivotably mounted foil, 1. said submerged foils being mounted in a plane parallel to the fore and aft lines of said craft, 2. said pivoting being on an axis of rotation lying in a plane perpendicular to the fore and aft lines of the craft, and c. means for independently pivoting each said submerged foil from inside said watercraft.
Claim 3
Dependent Claim
36 words
said pivoting being on an axis of rotation lying in a plane perpendicular to the fore and aft lines of the craft, and c. means for independently pivoting each said submerged foil from inside said watercraft.
Claim 4
Dependent Claim
36 words
said pivoting being on an axis of rotation lying in a plane perpendicular to the fore and aft lines of the craft, and c. means for independently pivoting each said submerged foil from inside said watercraft.
Claim 5
Dependent Claim
34 words
The watercraft of claim 1 in which said submerged foils are mounted in a plane which also makes an angle greater than 0* and less than 90* with the plane of the water surface.
Claim 6
Dependent Claim
20 words
The watercraft of claim 2 in which the said submerged foils are substantially outboard of the sides of said watercraft.
Claim 7
Dependent Claim
23 words
The watercraft of claim 3 in which the said submerged foils have a larger surface aft of said pivot than forward of it.
Claim 8
Dependent Claim
29 words
The watercraft of claim 4 in which said submerged foils are mounted in a plane which also makes an angle of 45* with the plane of the water surface.
References Cited (Backward Citations)
US2387907A
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US2713317A
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US3114343A
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US3162166A
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US3237582A
Cited
US3688723A
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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) | 1976-10-15 | 1977-04-16 | 1977-10-16 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1980-10-15 | 1981-04-16 | 1981-10-16 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1984-10-15 | 1985-04-16 | 1985-10-16 | $7700.00 | Window Closed / Lapsed |