US3884172A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Hydroplane boat
Assignee: Individual
•
Filing: 1974-01-02
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Granted: 1975-05-20
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Expires: 1994-01-02
Abstract
Abstract An improved hydroplane boat comprising a triangular swelling plane, above the hull, having two pivotal ailerons and a vertical fin with a pivotal auxiliary rudder, the ailerons operatively connecting with footpedals by lines through pulleys, the auxiliary rudder operatively connecting with a control lever by an endless line laid on other pulleys, so that plane lift can be controlled by the footpedals and the control lever to lighten the rear load of the outboard motor, etc., in weight, with assurance of high speed and safe control.
Inventors
- 👤 Kenryu Takahashi
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 12:19
CPC Classifications
B; B63; B63B; B63B1/00; B63B1/16; B63B1/18; B63B1/32; B63B1/322; F; F02; F02B; F02B61/00; F02B61/04; F02B61/045; Y; Y02; Y02T; Y02T70/00; Y02T70/10
Claims Analysis
Total Claims: 5
Claim 1
Independent Claim
143 words
An improved hydroplane boat comprising a triangular swelling plane above the hull, the plane sloping gently first upwardly from a center chord, symmetrically to a right and left span, and then downwardly at each span, and said plane having an apex angle directed toward the bow of the boat, a center rod being situated along the center chord beneath the plane, two branch rods projecting from the center rod, a handrail mounted on a qunwale, four rods connected with the branch rods and the handrail to slide therealong and be set at a predetermined location, a fin mounted upright on the rear center of the plane, an auxiliary rudder pivotally joined to the fin, ailerons pivotally joined to the rear side of the plane, a control lever operatively connecting with the auxiliary rudder, and footpedals on a hullbottom operatively connecting with the ailerons.
Claim 2
Dependent Claim
143 words
An improved hydroplane boat comprising a triangular swelling plane above the hull, the plane sloping gently first upwardly from a center chord, symmetrically to a right and left span, and then downwardly at each span, and said plane having an apex angle directed toward the bow of the boat, a center rod being situated along the center chord beneath the plane, two branch rods projecting from the center rod, a handrail mounted on a qunwale, four rods connected with the branch rods and the handrail to slide therealong and be set at a predetermined location, a fin mounted upright on the rear center of the plane, an auxiliary rudder pivotally joined to the fin, ailerons pivotally joined to the rear side of the plane, a control lever operatively connecting with the auxiliary rudder, and footpedals on a hullbottom operatively connecting with the ailerons.
Claim 3
Dependent Claim
69 words
The improved hydroplane boat, as set forth in claim 1, wherein said four rods are composed of four rods which are pivotally hung from the branch rods and which have lower ends which are inserted into four pipes, said pipes having lower ends which are pivotally and slidably connected with the handrail, the pipes being supported by support rods which can be set at the handrail with screws respectively.
Claim 4
Dependent Claim
74 words
The improved hydroplane boat, as set forth in claim 1, wherein said auxiliary rudder is pivotally joined to the rear side of the fin with an upright axis the lower end of which is fixed to a pulley, said control lever being connected with a shaft which stands pivotally on the hull-bottom and the lower part of which is fixed with another pulley, said pulleys being interconnected by an endless line through small pulleys.
Claim 5
Dependent Claim
93 words
The improved hydroplane boat, as set forth in claim 1, wherein said ailerons are pivotally joined to the rear side of thE plane and fixed to a horizontal axis which is bridged through the center rod and the branch rods, the axis having respective pulleys between the ailerons and the center rod, said pulleys being connected respectively to lines which connect with arms of the footpedals on the hull-bottom through small pulleys, said axis having coil springs between said pulleys and the center rod, respectively, to urge the ailerons to given angular positions.
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) | 1978-05-19 | 1978-11-18 | 1979-05-20 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1982-05-19 | 1982-11-18 | 1983-05-20 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1986-05-19 | 1986-11-18 | 1987-05-20 | $7700.00 | Window Closed / Lapsed |