US3812814A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Water vehicle
Assignee: MOTO NAUTE Inc
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Filing: 1973-05-18
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Granted: 1974-05-28
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Expires: 1993-05-18
Abstract
Abstract A power boat with a generally mid-ship mounted motor and propeller is provided. A rudder is disposed at the rear of the boat and generally on the longitudinal center line thereof. Straightening vanes are mounted longitudinally on the underside of the hull with the rearwardmost portion thereof located generally adjacent the forwardmost portion of the rudder. The vanes extend forwardly a distance of about one-tenth the length of the entire hull. Longer protuberances on the hull extend longitudinally from a forward position near the propeller to a rearward position near the rudder. The longer protuberances lie on opposite sides of the center line of the hull. A third shorter protuberance extends rearwardly from the propeller toward the rudder and along the center line of the hull. The hull has a convex shape relative to the water line.
Inventors
- 👤 J Veilleux
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-09 08:23
CPC Classifications
B; B63; B63B; B63B34/00; B63B34/10
Claims Analysis
Total Claims: 19
Claim 1
Independent Claim
176 words
A motor powered boat comprising a hull, a rear mounted rudder, and a motor and propeller mounted generally mid-ship of the hull; a plurality of straightening vanes disposed on the under surface of the hull and positioned on each side of the center line of the hull, said vanes extending longitudinally from a position on the hull near or adjacent to a forwardmost portion of the rudder to a position on the hull rearwardly of the propeller; a plurality of longer protuberances disposed on the under surface of the hull and positioned on each side of the center line of the hull, said protuberances being disposed inwardly of said vanes and extending longitudinally from a rear position on the hull to a position on the hull at least adjacent the forwardmost position of the propeller; and the under surface of the hull having a convex shape capable of providing an air pocket generally between the under surface of the hull and the water upon which the hull floats when the boat is moved at operational speeds.
Claim 2
Dependent Claim
176 words
A motor powered boat comprising a hull, a rear mounted rudder, and a motor and propeller mounted generally mid-ship of the hull; a plurality of straightening vanes disposed on the under surface of the hull and positioned on each side of the center line of the hull, said vanes extending longitudinally from a position on the hull near or adjacent to a forwardmost portion of the rudder to a position on the hull rearwardly of the propeller; a plurality of longer protuberances disposed on the under surface of the hull and positioned on each side of the center line of the hull, said protuberances being disposed inwardly of said vanes and extending longitudinally from a rear position on the hull to a position on the hull at least adjacent the forwardmost position of the propeller; and the under surface of the hull having a convex shape capable of providing an air pocket generally between the under surface of the hull and the water upon which the hull floats when the boat is moved at operational speeds.
Claim 3
Dependent Claim
50 words
The boat of claim 1, wherein at least one shorter protuberance is disposed on the under surface of the hull and generally along the center line of the hull, said shorter protuberance extending from a rear position on the hull to a position on the hull rearward of the propeller.
Claim 4
Dependent Claim
31 words
The boat of claim 2, wherein the said shorter protuberance extends less than about half the distance from the rearward position of the propeller to the rearwardmost part of the hull.
Claim 5
Dependent Claim
11 words
The boat of claim 1, wherein the protuberances have tapered ends.
Claim 6
Dependent Claim
46 words
The boat of claim 1, wherein the longer protuberances are positioned laterally of the centerline of the hull from about five tenths to about eight tenths of the distance from the outermost portion of the bottom of the hull to the longitudinal centerline of the hull.
Claim 7
Dependent Claim
20 words
The boat of claim 5, wherein the longer protuberances are positioned at least about sixty five one-hundredths the said distance.
Claim 8
Dependent Claim
47 words
The boat of claim 1, wherein the straightening vanes are positioned laterally of the centerline of the hull from about three tenths to about sixty five one-hundredths of the distance from the outermost portion of the bottom of the hull to the longitudinal centerline of the hull.
Claim 9
Dependent Claim
17 words
The boat of claim 7, wherein the straightening vanes are positioned about four tenths the said distance.
Claim 10
Dependent Claim
27 words
The boat of claim 1, wherein the straightening vanes extend below the surface of the hull a distance of from about three-fourths inch to about 4 inches.
Claim 11
Dependent Claim
23 words
The boat of claim 9, wherein the straightening vanes extend below the surface of the hull a distance of about 1 1/4 inches.
Claim 12
Dependent Claim
23 words
The boat of claim 1, wherein the protuberances extend below the surface of the hull from about three-eighths inch to about 1 inch.
Claim 13
Dependent Claim
18 words
The boat of claim 11, wherein the protuberances extend below the surface of the hull about one-half inch.
Claim 14
Dependent Claim
42 words
The boat of claim 1, wherein the straightening vanes are askew to the longitudinal centerline of the hull with the forward portions of the vanes further separated than the rearward portions by a difference of about 1 percent to about 15 percent.
Claim 15
Dependent Claim
16 words
The boat of claim 13, wherein the percentage of difference is about 1 to 2 percent.
Claim 16
Dependent Claim
27 words
The boat of claim 1, wherein the portion of the hull between the longer protuberances is slightly concave relative to the remaining portion of the hull surface.
Claim 17
Dependent Claim
50 words
The boat of claim 1, wherein the convex portion of the hull surface comprises two relatively plane hull surfaces extending from a lower outer edge of the hull to the two protuberances each at a selected angle Theta relative to the horizontal, Theta varying from about 1* to about 18*.
Claim 18
Dependent Claim
14 words
The boat of claim 16, wherein Theta varies from about 3* to about 8*.
Claim 19
Dependent Claim
10 words
The boat of claim 17, wherein Theta is about 4*30''.
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) | 1977-05-27 | 1977-11-26 | 1978-05-28 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1981-05-27 | 1981-11-26 | 1982-05-28 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1985-05-27 | 1985-11-26 | 1986-05-28 | $7700.00 | Window Closed / Lapsed |