Patent US4056074A successfully refreshed from Google Patents.
US4056074A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Hydrofoil kit
Assignee: Individual
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Filing: 1976-04-23
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Granted: 1977-11-01
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Expires: 1996-04-23
Abstract
Abstract A kit containing a plurality of hydrofoil assemblies which can be easily and quickly attached to a conventional boat hull thereby causing the boat to operate with the hull of the boat spaced above the surface of the water. There are three separate hydrofoil assemblies, with one being located at the stern of the boat in conjunction with the outboard motor. The other hydrofoil assemblies are located approximately amidship with one on the starboard side and the other on the port side. The midship hydrofoil assemblies are interconnected together through a flexible band which functions to securely attach these hydrofoil assemblies to the boat hull. Each of the hydrofoil assemblies are adjustable with respect to the hull of the boat. In a larger boat, there may be four (in number) or more of the hydrofoil assemblies attached to the boat hull.
Inventors
- 👤 Elmer B. Sachs
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 18:20
CPC Classifications
B; B63; B63B; B63B1/00; B63B1/16; B63B1/24; B63B1/242; B63H; B63H20/00; B63H20/08; B63H20/10; B63H20/106; F; F02; F02B; F02B61/00; F02B61/04; F02B61/045
Claims Analysis
Total Claims: 6
Claim 1
Independent Claim
116 words
In combination with a boat hull, a hydrofoil kit connectable with said hull, said hydrofoil kit comprising: a first hydrofil unit connectable by first connecting means to starboard side of said hull; a second hydrofil unit connectable by second connecting means to the port side of said hull, each said hydrofil unit including a hydrofoil member spaced below the bottom of said hull; interconnecting means connecting said first hydrofoil unit and said second hydrofoil unit, said interconnecting means securely binding together said hydrofoil units to said hull; and said interconnecting means including a flexible band assembly extending across the bottom of said hull, tightening means connected with said flexible band to make said flexible band taut.
Claim 2
Dependent Claim
116 words
In combination with a boat hull, a hydrofoil kit connectable with said hull, said hydrofoil kit comprising: a first hydrofil unit connectable by first connecting means to starboard side of said hull; a second hydrofil unit connectable by second connecting means to the port side of said hull, each said hydrofil unit including a hydrofoil member spaced below the bottom of said hull; interconnecting means connecting said first hydrofoil unit and said second hydrofoil unit, said interconnecting means securely binding together said hydrofoil units to said hull; and said interconnecting means including a flexible band assembly extending across the bottom of said hull, tightening means connected with said flexible band to make said flexible band taut.
Claim 3
Dependent Claim
260 words
In combination with a boat hull, a hydrofoil kit connectable with said hull, said hydrofoil kit comprising: a first hydrofoil unit connectable by first connecting means to starboard side of said hull; a second hydrofoil unit connectable by second connecting means to the port side of said hull, each said hydrofoil unit including a hydrofoil member spaced below the bottom of said hull; interconnecting means connecting said first hydrofoil unit and said second hydrofoil unit, said interconnecting means securely binding together said hydrofoil units to said hull; an outboard motor assembly being connected to the stern of said boat hull, a third hydrofoil unit connected to said outboard motor assembly, said third hydrofoil unit including a third hydrofoil member spaced below the bottom of said hull, said outboard motor assembly including a prop adapted to be located beneath the surface of the water, said hydrofoil member located above said prop; adjustment means mounting said outboard motor assembly to said boat hull, said adjustment means being capable of adjustably moving said outboard motor assembly in respect to said hull; said adjustment means including a winch assembly connected to a driving belt which rotates a pair of spaced apart threaded members, said outboard motor assembly including an outboard motor housing, said threaded members being connected to appropriate threaded sections formed on the exterior of said outboard motor housing, whereby upon manual turning of said winch said threaded members rotate in a clockwise or counterclockwise direction which, in turn, either raises or lowers said outboard motor assembly with respect to said boat hull.
Claim 4
Dependent Claim
260 words
In combination with a boat hull, a hydrofoil kit connectable with said hull, said hydrofoil kit comprising: a first hydrofoil unit connectable by first connecting means to starboard side of said hull; a second hydrofoil unit connectable by second connecting means to the port side of said hull, each said hydrofoil unit including a hydrofoil member spaced below the bottom of said hull; interconnecting means connecting said first hydrofoil unit and said second hydrofoil unit, said interconnecting means securely binding together said hydrofoil units to said hull; an outboard motor assembly being connected to the stern of said boat hull, a third hydrofoil unit connected to said outboard motor assembly, said third hydrofoil unit including a third hydrofoil member spaced below the bottom of said hull, said outboard motor assembly including a prop adapted to be located beneath the surface of the water, said hydrofoil member located above said prop; adjustment means mounting said outboard motor assembly to said boat hull, said adjustment means being capable of adjustably moving said outboard motor assembly in respect to said hull; said adjustment means including a winch assembly connected to a driving belt which rotates a pair of spaced apart threaded members, said outboard motor assembly including an outboard motor housing, said threaded members being connected to appropriate threaded sections formed on the exterior of said outboard motor housing, whereby upon manual turning of said winch said threaded members rotate in a clockwise or counterclockwise direction which, in turn, either raises or lowers said outboard motor assembly with respect to said boat hull.
Claim 5
Dependent Claim
364 words
In combination with a boat hull, a hydrofil kit connectable with said hull, said hydrofoil kit comprising: a first hydrofil unit connectable by first connecting means to starboard side of said hull; a second hydrofoil unit connectable by second connecting means to the port side of said hull, each said hydrofoil unit including a hydrofoil member spaced below the bottom of said hull; interconnecting means connecting said first hydrofoil unit and said second hydrofoil unit, said interconnecting means securely binding together said hydrofoil units to said hull; an outboard motor assembly being connected to the stern of said boat hull, a third hydrofoil unit connected to said outboard motor assembly, said third hydrofoil unit including a third hydrofoil member spaced below the bottom of said hull, said outboard motor assembly including a prop adapted to be located beneath the surface of the water, said hydrofoil member located entirely above said prop; said third hydrofoil member being movable to different angular positions with respect to said outboard motor assembly, movement means connected to said outboard motor assembly and said third hydrofoil member to move said third hydrofoil member to a selected angular position and maintain the said member in that position, whereby the stern of said boat hull being selectably raised or lowered within the water by selecting the said angular position of said third hydrofoil member; adjustment means mounting said outboard motor assembly to said boat hull, said adjustment means being capable of adjustably moving said outboard motor assembly in respect to said hull to raise and lower said outboard motor assembly within the water, said adjustment means including means for fixedly positioning said outboard motor assembly at a selected position; and said adjustment means including a winch assembly connected to a driving belt which rotates a pair of spaced apart threaded members, said outboard motor assembly including an outboard motor housing, said threaded members being connected to appropriate threaded sections formed on the exterior of said outboard motor housing, whereby upon manual turning of said winch said threaded members rotate in a clockwise or counterclockwise direction which, in turn, either raises or lowers said outboard motor assembly with respect to said boat hull.
Claim 6
Dependent Claim
364 words
In combination with a boat hull, a hydrofil kit connectable with said hull, said hydrofoil kit comprising: a first hydrofil unit connectable by first connecting means to starboard side of said hull; a second hydrofoil unit connectable by second connecting means to the port side of said hull, each said hydrofoil unit including a hydrofoil member spaced below the bottom of said hull; interconnecting means connecting said first hydrofoil unit and said second hydrofoil unit, said interconnecting means securely binding together said hydrofoil units to said hull; an outboard motor assembly being connected to the stern of said boat hull, a third hydrofoil unit connected to said outboard motor assembly, said third hydrofoil unit including a third hydrofoil member spaced below the bottom of said hull, said outboard motor assembly including a prop adapted to be located beneath the surface of the water, said hydrofoil member located entirely above said prop; said third hydrofoil member being movable to different angular positions with respect to said outboard motor assembly, movement means connected to said outboard motor assembly and said third hydrofoil member to move said third hydrofoil member to a selected angular position and maintain the said member in that position, whereby the stern of said boat hull being selectably raised or lowered within the water by selecting the said angular position of said third hydrofoil member; adjustment means mounting said outboard motor assembly to said boat hull, said adjustment means being capable of adjustably moving said outboard motor assembly in respect to said hull to raise and lower said outboard motor assembly within the water, said adjustment means including means for fixedly positioning said outboard motor assembly at a selected position; and said adjustment means including a winch assembly connected to a driving belt which rotates a pair of spaced apart threaded members, said outboard motor assembly including an outboard motor housing, said threaded members being connected to appropriate threaded sections formed on the exterior of said outboard motor housing, whereby upon manual turning of said winch said threaded members rotate in a clockwise or counterclockwise direction which, in turn, either raises or lowers said outboard motor assembly with respect to said boat hull.
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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) | 1980-10-31 | 1981-05-02 | 1981-11-01 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1984-10-31 | 1985-05-02 | 1985-11-01 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1988-10-31 | 1989-05-02 | 1989-11-01 | $7700.00 | Window Closed / Lapsed |